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STL - WAS

$76 Find cheap flights from St. Louis to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Washington, D.C. departing on 6/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
jue. 6/27
jue. 7/4

Search hundreds of travel sites at once for deals on flights to Washington, D.C.

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Washington, D.C., as well as popular online travel agencies
In the last 7 days travelers have searched 42,816,550 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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Filter your dealsChoose cabin class, free Wi-Fi and more.

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Cheap flight deals from St. Louis to Washington, D.C. (STL-WAS)

 
These are the cheapest deals for flights from St. Louis to Washington, D.C. currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from St. Louis to Washington, D.C.

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from St. Louis to Washington, D.C..

Recent one-way flight deals from St. Louis to Washington, D.C.

Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Washington, D.C. found on KAYAK recently.

Recent last minute flight deals from St. Louis to Washington, D.C.

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from St. Louis to Washington, D.C..

Recent direct flight deals from St. Louis to Washington, D.C.

The latest deals for direct flights from St. Louis to Washington, D.C. so you can sit back and relax without the need for a layover.

Cheap bus & train deals from St. Louis to Washington, D.C.

Find recent round-trip train or bus tickets from St. Louis to Washington, D.C..

All round-trip flight deals to Washington, D.C.

The cheapest plane tickets to Washington, D.C. found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
3:23 pm - 8:35 amSTL-BWI
16h 12m1 stop
6:00 am - 2:23 pmBWI-STL
9h 23m2 stops
$145Spirit Airlines
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mar., jun. 11 - mar., jun. 18
3:23 pm - 4:01 pmSTL-BWI
23h 38m1 stop
10:45 pm - 5:28 pmBWI-STL
19h 43m1 stop
$168Spirit Airlines
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mar., jul. 2 - vie., jul. 5
7:44 pm - 7:47 amSTL-BWI
11h 03m1 stop
8:48 pm - 9:29 amBWI-STL
13h 41m1 stop
$175Frontier
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jue., jun. 6 - mar., jun. 11
9:39 am - 12:48 pmSTL-DCA
2h 09mnonstop
8:00 pm - 9:28 pmDCA-STL
2h 28mnonstop
$179American Airlines
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mié., jun. 26 - mié., jul. 3
4:02 pm - 11:46 pmSTL-DCA
6h 44m1 stop
8:45 am - 2:30 pmDCA-STL
6h 45m1 stop
$188Delta
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lun., jul. 1 - vie., jul. 5
5:42 pm - 8:43 pmSTL-DCA
2h 01mnonstop
8:00 pm - 9:28 pmDCA-STL
2h 28mnonstop
$189American Airlines
Find Deal
jue., jun. 27 - mar., jul. 2
7:44 pm - 7:47 amSTL-BWI
11h 03m1 stop
7:09 pm - 10:42 amBWI-STL
16h 33m2 stops
$192Frontier
Find Deal
mar., jun. 11 - vie., jun. 14
4:02 pm - 11:46 pmSTL-DCA
6h 44m1 stop
5:00 pm - 9:00 pmDCA-STL
5h 00m1 stop
$198Delta
Find Deal
jue., jul. 4 - mar., jul. 9
8:25 am - 11:33 amSTL-IAD
2h 08mnonstop
8:35 am - 9:58 amIAD-STL
2h 23mnonstop
$209United Airlines
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mar., sep. 24 - sáb., sep. 28
6:08 am - 11:58 amSTL-DCA
4h 50m1 stop
12:00 pm - 3:40 pmDCA-STL
4h 40m1 stop
$225United Airlines
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jue., jun. 27 - mar., jul. 2
7:44 pm - 7:47 amSTL-BWI
11h 03m1 stop
$76Frontier
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mar., jun. 4
3:23 pm - 12:45 amSTL-BWI
8h 22m1 stop
$78Spirit Airlines
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mar., jul. 2
6:09 am - 9:11 amSTL-DCA
2h 02mnonstop
$85American Airlines
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mar., jul. 2
5:30 pm - 12:30 amSTL-IAD
6h 00m1 stop
$94United Airlines
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lun., jul. 1
3:10 pm - 10:30 pmSTL-DCA
6h 20m1 stop
$94Delta
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lun., jul. 1
5:42 pm - 8:43 pmSTL-DCA
2h 01mnonstop
$95American Airlines
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mar., jun. 18
8:25 am - 11:35 amSTL-IAD
2h 10mnonstop
$95United Airlines
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mar., jun. 18
11:25 am - 4:24 pmSTL-DCA
3h 59m1 stop
$104Delta
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mar., jun. 18
12:00 pm - 8:35 amSTL-BWI
19h 35m3 stops
mar., jun. 4
12:15 pm - 7:28 amSTL-BWI
18h 13m3 stops
mié., jun. 12
9:10 pm - 11:58 amSTL-BWI
13h 48m1 stop
9:15 am - 8:20 pmBWI-STL
12h 05m1 stop
$195Frontier
Find Deal
mié., may. 29 - lun., jun. 3
9:10 pm - 11:58 amSTL-BWI
13h 48m1 stop
1:44 pm - 7:08 amBWI-STL
18h 24m2 stops
$200Frontier
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mié., may. 29 - lun., jun. 3
9:29 pm - 8:03 amSTL-BWI
9h 34m1 stop
8:38 am - 7:07 amBWI-STL
23h 29m1 stop
$209Frontier
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sáb., jun. 1 - mié., jun. 5
4:10 pm - 5:30 pmSTL-BWI
24h 20m2 stops
6:30 am - 2:50 pmBWI-STL
33h 20m2 stops
mié., may. 29 - lun., jun. 3
7:45 am - 12:33 amSTL-BWI
15h 48m3 stops
6:30 am - 12:50 pmBWI-STL
31h 20m2 stops
jue., may. 30 - jue., jun. 6
4:20 pm - 9:50 pmSTL-BWI
4h 30m1 stop
9:50 am - 3:28 pmBWI-STL
6h 38m1 stop
$475American Airlines
Find Deal
vie., may. 31 - dom., jun. 2
4:20 pm - 12:01 amSTL-IAD
6h 41m1 stop
8:15 pm - 12:03 amIAD-STL
4h 48m1 stop
$493American Airlines
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sáb., jun. 1 - lun., jun. 10
8:05 am - 4:12 pmSTL-IAD
7h 07m1 stop
10:23 pm - 10:57 amIAD-STL
13h 34m2 stops
$525United Airlines
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sáb., jun. 1 - lun., jun. 10
8:25 am - 11:35 amSTL-IAD
2h 10mnonstop
8:20 am - 9:32 amIAD-STL
2h 12mnonstop
$535United Airlines
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sáb., jun. 1 - mié., jun. 5
5:29 pm - 10:52 pmSTL-IAD
4h 23m1 stop
6:00 am - 9:19 amIAD-STL
4h 19m1 stop
$554Delta
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sáb., jun. 1 - mié., jun. 5
9:39 am - 12:48 pmSTL-DCA
2h 09mnonstop
8:00 pm - 9:28 pmDCA-STL
2h 28mnonstop
$179American Airlines
Find Deal
mié., jun. 26 - mié., jul. 3
5:42 pm - 8:43 pmSTL-DCA
2h 01mnonstop
8:00 pm - 9:28 pmDCA-STL
2h 28mnonstop
$189American Airlines
Find Deal
jue., jun. 27 - mar., jul. 2
5:49 pm - 8:49 pmSTL-DCA
2h 00mnonstop
1:59 pm - 3:23 pmDCA-STL
2h 24mnonstop
$199American Airlines
Find Deal
vie., ago. 2 - sáb., ago. 3
8:25 am - 11:33 amSTL-IAD
2h 08mnonstop
8:35 am - 9:58 amIAD-STL
2h 23mnonstop
$209United Airlines
Find Deal
mar., sep. 24 - sáb., sep. 28
6:09 am - 9:11 amSTL-DCA
2h 02mnonstop
3:26 pm - 4:51 pmDCA-STL
2h 25mnonstop
$209American Airlines
Find Deal
vie., jun. 21 - lun., jun. 24
6:02 am - 9:11 amSTL-DCA
2h 09mnonstop
8:00 pm - 9:28 pmDCA-STL
2h 28mnonstop
$223American Airlines
Find Deal
mar., sep. 24 - sáb., sep. 28
6:09 am - 9:11 amSTL-DCA
2h 02mnonstop
5:30 pm - 6:55 pmDCA-STL
2h 25mnonstop
$233American Airlines
Find Deal
vie., jun. 28 - sáb., jul. 6
7:47 am - 10:56 amSTL-DCA
2h 09mnonstop
8:00 pm - 9:28 pmDCA-STL
2h 28mnonstop
$234American Airlines
Find Deal
dom., jun. 30 - lun., jul. 1
6:10 am - 9:11 amSTL-DCA
2h 01mnonstop
8:00 pm - 9:29 pmDCA-STL
2h 29mnonstop
$244American Airlines
Find Deal
mié., jul. 24 - dom., jul. 28
8:25 am - 11:35 amSTL-IAD
2h 10mnonstop
8:15 am - 9:22 amIAD-STL
2h 07mnonstop
$264United Airlines
Find Deal
mié., jun. 26 - mié., jul. 3

Flights from St. Louis to Washington, D.C. - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis to Washington, D.C. to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest St. Louis to Washington, D.C. flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for one-way flights from St. Louis to Washington, D.C..
Our data shows that the cheapest route for a one-way flight from St. Louis to Washington, D.C. cost $94 and was between St. Louis and Washington, D.C. Reagan-National Airport. On average, the best prices are found if you fly from St. Louis to Baltimore. The average price for a return flight for this route is $198.

What’s the cheapest day of the week to fly from St. Louis to Washington, D.C.?

The average price of all flights from St. Louis to Washington, D.C. clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Washington, D.C. on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from St. Louis to Washington, D.C.. For your return ticket, we recommend flying on a Saturday and avoiding Mondays for the best deals.

What is the cheapest month to fly from St. Louis to Washington, D.C.?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from St. Louis to Washington, D.C. is January, where tickets cost $208 on average. On the other hand, the most expensive months are June and May, where the average cost of tickets is $326 and $302 respectively.

How far in advance should I book a flight from St. Louis to Washington, D.C.?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from St. Louis to Washington, D.C., you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 62 days before departure.

Which airlines provide the cheapest flights from St. Louis to Washington, D.C.?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting St. Louis to Washington, D.C. were found on Spirit Airlines ($145) and Frontier ($175). Frontier proposed the cheapest one-way flight at $76.

Which airlines fly most frequently between St. Louis and Washington, D.C.?

Southwest connects St. Louis to Washington, D.C. with up to 7 flights per day. American Airlines also offers 2 flights per day, while United Airlines follows with 2 flights per day.

Which airlines fly non-stop between St. Louis and Washington, D.C.?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from St. Louis to Washington, D.C..
There are 3 airlines that fly nonstop from St. Louis to Washington, D.C.. They are: American Airlines, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with American Airlines at $191 for a one-way flight. On average, the best prices for this route can be found at American Airlines.

How many flights are there between St. Louis and Washington, D.C. per day?

Each day, there are between 11 and 13 nonstop flights that take off from St. Louis and land in Washington, D.C., with an average flight time of 2h 01m. The most common departure time is 8:00 am and most flights take off in the morning, while the most flights land at Washington, D.C. Reagan-National Airport. Each week, there are 88 flights. The most frequent day of departure is Monday, when 15% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between St. Louis and Washington, D.C.?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from St. Louis to Washington, D.C. take?

The average nonstop flight takes 2h 00m, covering a distance of 717 miles.

What’s the earliest departure time from St. Louis to Washington, D.C.?

Early birds can take the earliest flight from St. Louis at 5:15 am and will be landing in Washington, D.C. at 8:15 am.

What’s the latest departure time from St. Louis to Washington, D.C.?

If you prefer to fly at night, the latest flight from St. Louis to Washington, D.C. jets off at 8:55 pm and lands at 11:55 pm.

Good to know

Low season

January

High season

May

Cheapest flight

$76
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly with an average 9% increase in price.
Flight from St. Louis to Baltimore

When to book flights from St. Louis to Washington, D.C.

Are your dates flexible? Find out the best times to travel from St. Louis to Washington, D.C. based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Washington, D.C.

  • What is the cheapest flight from St. Louis to Washington, D.C.?

    In the last 3 days, the lowest price for a flight from St. Louis to Washington, D.C. was $76 for a one-way ticket and $145 for a round-trip.

  • Do I need a passport to fly between St. Louis and Washington, D.C.?

    No

  • Which airports will I be using when flying from St. Louis to Washington, D.C.?

    On your way to Washington, D.C., you’ll fly out from Lambert-St Louis. You’ll be landing in one of Washington, D.C.’s 2 airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

  • Which airlines offer Wi-Fi service onboard planes from St. Louis to Washington, D.C.?

    All the following airlines offer inflight Wi-Fi service on the St. Louis to Washington, D.C. flight route: American Airlines, United Airlines, Lufthansa, Alaska Airlines, Delta, JetBlue, and Air Canada.

  • Which aircraft models fly most regularly from St. Louis to Washington, D.C.?

    The Airbus A319 is the aircraft model that flies most regularly on the St. Louis to Washington, D.C. flight route.

  • Which airline alliances offer flights from St. Louis to Washington, D.C.?

    oneworld, and Star Alliance are the airline alliances operating flights between St. Louis and Washington, D.C., with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from St. Louis to Washington, D.C.?

    There are nonstop flights from St. Louis to Washington, D.C. on a daily basis.

  • Which is the best airline for flights from St. Louis to Washington, D.C., Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Washington, D.C. are Delta and United Airlines. With an average price for the route of $296 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $334 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to Washington, D.C.?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Washington, D.C.?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. with an airline and back to St. Louis with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Washington, D.C.?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from St. Louis to Washington, D.C.

  • Looking for a cheap flight? 25% of our users found flights on this route for $148 or less one-way and $253 or less round-trip.

Prefer to fly non-stop from St. Louis to Washington, D.C.?

Find which airlines fly direct from Lambert-St Louis to Washington, D.C., which days they fly and book direct flights.

Nonstop departures

Lambert-St Louis to Washington, D.C.

Monday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Tuesday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Wednesday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Thursday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Friday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Saturday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Sunday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

See more direct flights

Nonstop returns

Washington, D.C. to Lambert-St Louis

Monday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Tuesday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Wednesday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Thursday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Friday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Saturday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Sunday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

See more direct flights
See more direct flights

Top 4 airlines serving from St. Louis to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Washington, D.C.? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10502 reviews
7.4Food
8.6Crew
8.0Entertainment
7.9Comfort
8.2Boarding
Airline reviews

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

10.0 ExcellentMichael, May 2024SJC - ATL
Read more about Delta reviews

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

They were an hour late and they didn’t have my wheelchair for me

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

All flights were on time and boarding was issue free

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

Plane didn’t even make it off the ground. We all had to get off and walk to a different terminal (lots of confusion) to get on a different plane. Landed fairly late, connections missed.

Crowded flight, but upbeat and kind crew. Pilot greeted us at door, flight attendant thanked a number of “special” passengers for their business, another addressed an eight-year old boy as “young man.” United obviously trying to up their game, but though all of that is nice and notable, flying still feels like moving along a human assembly line, being herded into one small space after another (boarding areas with too few seats, planes with limited personal space, shuttles (IAD) packed too full.

It was ok until we got to DC and I wanted to use my United Club pass and the snobbish receptionist said that they don’t take one pass. It took me everything itch of patience not to tell her off

Food choice was poor and we had to buy on board snacks.

We were offer chocolate cookies , not everyone eat chocolate. Thank you

Onboarding - it would be great to see on the screen what group they were boarding. It was very confusing on who was boarding (even though they called it out) they were not clear and the space to board was strange.

Lost luggage again. Our second trip to Mykonos, and 2nd time no luggage.

The CX617 from HK to BKK was delayed more than 1.5 hours.

The Flight attendant had an attitude and didn't allow anyone any time to prepare for landing despite being absent throughout the entire trip

American Airlines continues to price it can provide the least comfortable passenger experience in the air. This legacy carrier rivals the budgets for both terrible seats and inadequate amenities. I am a 5’7” woman who is not wider than a coach seat (even on these narrow bodied aircraft). My 3.5 hour flight was terribly uncomfortable because the leg room is inadequate (my knees hit the seat on front of me even when it was not reclined); the seat barely reclines; and the foam padding is worn thin to the extent one can feel the metal supports of the seat. Add to this the fact that the aisle is super narrow, so that the drink cart literally scrapes the arm rest of the aisle seat. It’s basically torture.

The flight was great until towards the end when the flight attendant read an excessively long commercial for purchasing an american airlines credit card. The worst part is that we are doing a lot of traveling this year so i was actually interested in getting the credit card, but I was so annoyed with the long commercial that I completely dismissed the flight attendant bringing around the information. Next time, keep the sales pitch to 10 seconds and then pass around the brochures!!

Nice aircraft. Plane was PACKED full and distance between seats was tight. Had it been more than a two hour flight it would not have been tolerable. I had much more knee space on the JetBlue flight I went out on.

New ridiculous policy by american destroyed my allegiance to american. As a million miler with american, I expected it would be easy to get on an earlier flight when I got to airport earlier than expected, and save a five hour layover. WRONG. The online app would not let me switch flights, So I called, and was promised a call back in 90 minutes. HAH! The customer service desk at DCA said “we no longer have access to changing a flight on our screens. If the app couldn’t do it, I should send a letter to American, but there’s nothing else possible!”

I am tired of being nickel and dimed for seat location, checked luggage and carry on bags. That is why i rarely fly anymore.

It was right on time and crew were very courteous

Great flight. Boarding was efficient and quick. On time departure and smooth flight. Flight arrived early at destination. Good experience.

Literally the worst experience ever and I had my service dog with me. Flight was supposed to leave at 1:51 PM but the plane arrived late. They boarded us around 3 PM and kept us on the plane for an hour saying that due to weather conditions in Miami, we could not takeoff yet. After waiting for an hour, they deplaned. And then they will not give us our bags back that we could just leave and schedule for another flight. Every hour they kept updating saying we have to wait another hour without any explanation as to what was going on. Eventually, I went to customer service to change my ticket, but by the time I made it to the front of the line, they started boarding my flight again. And then when we got onto the flight, they said there were two flight attendants That were past their shift. They kept us on the plane for about another 40 minutes until they told us they had no other flight attendance and had to deplane again. Then I gave us hotel vouchers and told us we would be on a flight at 6 AM the next day. At this point it is about 9 PM. I get to the hotel with my dog, who hasn’t been able to go potty for about eight hours. When I arrived at the hotel, I got a text alert saying my flight has been canceled at 6 AM and they moved past to 5 AM, however the hotel shuttle doesn’t leave early enough to make it to the airport for 5 AM flight. So me and some other passengers got a cab after about three hours of sleep to get back to the airport. This was the worst experience ever.

Frontier won’t help you at the airport without paying $25. Carry on was $75. Then you get on the plain and every beverage or snack is also a charge. Seats are hard and real packed in. I would never fly them again.

Worst experience I have seen. The flight was cancelled without any reason.

My experience with frontier staff at the Denver airport was absolutely horrible. The manager on duty was even worst if was the worst experience I have ever had, I have never been treated so poorly as a customer in my life! The staff was extremely rude, eye rolls and attitude and then refusal to help me at all. I wish I could never fly frontier again that’s how horrible it was!

The Frontier app wasn’t working. So I could not pay for a carry on the week prior to flying. They charged me 99$ at the gate to carry on a duffle bag.

Good for the price. My only complaint is that the pilot should keep the air flowing while passengers are waiting to getting out of airplane.

Plane could have been more on time. More leg room .

I arrived 1 hour prior to boarding, and they said I was too late for a domestic flight. First time I heard that :-(

Check in online was easy. Seats aren’t very comfortable

Fecal matter in seat back pocket. Presumably from a kids diaper.

Worst airline to travel with. They treat you like a prisoner in a jailhouse barking out orders and threats. Nickle and dime you to the same price or higher than a respectable airline like one of the big 3 . Might as well fly with standard airlines

Book cheap flights from St. Louis to Washington, D.C.

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Washington, D.C. found on KAYAK in the last 72 hours.
6/4mar.
1 stopFrontier
11h 03mSTL-BWI
$76
7/2mar.
1 stopSpirit Airlines
8h 22mSTL-BWI
$78
7/2mar.
nonstopAmerican Airlines
2h 02mSTL-DCA
$85
7/1lun.
1 stopUnited Airlines
6h 00mSTL-IAD
$94
7/1lun.
1 stopDelta
6h 20mSTL-DCA
$94
6/18mar.
nonstopAmerican Airlines
2h 01mSTL-DCA
$95
6/18mar.
nonstopUnited Airlines
2h 10mSTL-IAD
$95
6/18mar.
1 stopDelta
3h 59mSTL-DCA
$104
6/4mar.
3 stops
19h 35mSTL-BWI
$109
6/12mié.
3 stops
18h 13mSTL-BWI
$117

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Last minute flights from St. Louis to Washington, D.C.

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Washington, D.C. that are departing in the next 10 days.
5/29mié.
multi-stopFrontier
13h 48mSTL-BWI
6/3lun.
multi-stopFrontier
12h 05mBWI-STL
$195
5/29mié.
multi-stopFrontier
13h 48mSTL-BWI
6/3lun.
multi-stopFrontier
18h 24mBWI-STL
$200
6/1sáb.
multi-stopFrontier
9h 34mSTL-BWI
6/5mié.
multi-stopFrontier
23h 29mBWI-STL
$209
5/29mié.
multi-stop
24h 20mSTL-BWI
6/3lun.
multi-stop
33h 20mBWI-STL
$361
5/30jue.
multi-stop
15h 48mSTL-BWI
6/6jue.
multi-stop
31h 20mBWI-STL
$387
5/31vie.
multi-stopAmerican Airlines
4h 30mSTL-BWI
6/2dom.
multi-stopAmerican Airlines
6h 38mBWI-STL
$475
6/1sáb.
multi-stopAmerican Airlines
6h 41mSTL-IAD
6/10lun.
multi-stopAmerican Airlines
4h 48mIAD-STL
$493
6/1sáb.
multi-stopUnited Airlines
7h 07mSTL-IAD
6/10lun.
multi-stopUnited Airlines
13h 34mIAD-STL
$525
6/1sáb.
nonstopUnited Airlines
2h 10mSTL-IAD
6/5mié.
nonstopUnited Airlines
2h 12mIAD-STL
$535
6/1sáb.
multi-stopDelta
4h 23mSTL-IAD
6/5mié.
multi-stopDelta
4h 19mIAD-STL
$554

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St. Louis - Washington, D.C. Flights

Departure:

St. Louis (STL)United States

Return flight deals:

Washington, D.C. - St. Louis

Cabin classes:

$647
$839
$1,216
$198