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SIN - IAD

$490 Find cheap flights from Singapore to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Singapore to Dulles Intl departing on 6/14. 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
Sat 6/29
Sat 7/6

Search hundreds of travel sites at once for deals on flights to Washington Dulles Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Singapore 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 Singapore to Washington, D.C., as well as popular online travel agencies
In the last 7 days travelers have searched 43,361,115 times on KAYAK, and here is why:

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Cheap flight deals from Singapore to Dulles Intl (SIN-IAD)

 
These are the cheapest deals for flights from Singapore to Dulles Intl 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 Singapore to Dulles Intl

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Singapore to Dulles Intl.

Recent one-way flight deals from Singapore to Dulles Intl

Only flying one-way? Below are some of the best one-way flight deals from Singapore to Dulles Intl found on KAYAK recently.

Recent last minute flight deals from Singapore to Dulles Intl

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Singapore to Dulles Intl.

Recent direct flight deals from Singapore to Dulles Intl

The latest deals for direct flights from Singapore to Dulles Intl so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Singapore to Dulles Intl

Find recent round-trip train or bus tickets from Singapore to Dulles Intl.

All round-trip flight deals to Dulles Intl

The cheapest plane tickets to Dulles Intl found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
11:05 am - 3:50 pmSIN-IAD
40h 45m1 stop
8:20 am - 6:15 amIAD-SIN
33h 55m3 stops
$955United Airlines
Find Deal
Tue, Jun 25 - Thu, Jul 25
9:00 pm - 11:24 amSIN-IAD
26h 24m2 stops
12:25 pm - 6:40 amIAD-SIN
30h 15m1 stop
$962United Airlines
Find Deal
Mon, Jun 17 - Thu, Jul 18
5:15 pm - 3:45 pmSIN-IAD
34h 30m1 stop
7:10 pm - 3:45 pmIAD-SIN
56h 35m1 stop
$967SAUDIA
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Sat, Sep 14 - Sun, Sep 22
5:15 pm - 3:45 pmSIN-IAD
34h 30m1 stop
7:10 pm - 3:45 pmIAD-SIN
56h 35m1 stop
$970SAUDIA
Find Deal
Sat, Sep 14 - Sun, Sep 22
5:15 pm - 3:45 pmSIN-IAD
34h 30m1 stop
8:05 pm - 2:55 pmIAD-SIN
29h 50m1 stop
$1,080
Find Deal
Mon, Sep 30 - Mon, Nov 18
8:35 am - 7:15 amSIN-IAD
34h 40m1 stop
11:15 am - 9:45 pmIAD-SIN
22h 30m1 stop
$1,083Air India
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Mon, Jun 24 - Wed, Jul 24
4:15 pm - 3:10 pmSIN-IAD
34h 55m1 stop
9:25 pm - 8:35 amIAD-SIN
22h 10m1 stop
$1,106
Find Deal
Fri, Jun 14 - Mon, Jan 6
11:00 pm - 6:55 amSIN-IAD
44h 55m1 stop
10:15 am - 7:00 amIAD-SIN
31h 45m1 stop
$1,107Air India
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Thu, Nov 21 - Sat, Nov 30
10:35 pm - 8:30 pmSIN-IAD
33h 55m1 stop
10:45 pm - 4:05 pmIAD-SIN
29h 20m1 stop
$1,510British Airways
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Fri, Aug 2 - Fri, Aug 16
11:20 pm - 8:30 pmSIN-IAD
33h 10m1 stop
10:45 pm - 4:05 pmIAD-SIN
29h 20m1 stop
$1,577British Airways
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Wed, Jul 31 - Mon, Aug 19
4:15 pm - 3:10 pmSIN-IAD
34h 55m1 stop
$490Air China
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Fri, Jun 14
9:00 am - 3:10 pmSIN-IAD
42h 10m1 stop
$600Air China
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Mon, Oct 21
5:15 pm - 3:45 pmSIN-IAD
82h 30m1 stop
$638SAUDIA
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Mon, Oct 21
10:15 am - 7:55 pmSIN-IAD
45h 40m1 stop
$673Turkish Airlines
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Tue, Jul 23
5:15 pm - 3:45 pmSIN-IAD
34h 30m1 stop
$680SAUDIA
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Sat, Aug 3
10:15 am - 2:45 pmSIN-IAD
40h 30m1 stop
$696Turkish Airlines
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Fri, Jul 12
11:25 pm - 2:45 pmSIN-IAD
27h 20m1 stop
$703Turkish Airlines
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Thu, Jun 13
9:00 pm - 2:44 pmSIN-IAD
29h 44m1 stop
$983United Airlines
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Thu, Aug 22
9:00 pm - 7:07 amSIN-IAD
22h 07m1 stop
$1,037United Airlines
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Thu, Aug 15
11:20 pm - 3:40 pmSIN-IAD
28h 20m1 stop
$1,062British Airways
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Sun, Aug 4
9:00 pm - 10:51 pmSIN-IAD
37h 51m2 stops
6:15 pm - 6:45 pmIAD-SIN
36h 30m1 stop
$1,395United Airlines
Find Deal
Tue, Jun 4 - Tue, Jun 18
8:35 am - 7:15 amSIN-IAD
34h 40m1 stop
11:15 am - 7:30 amIAD-SIN
32h 15m1 stop
$1,435Air India
Find Deal
Tue, Jun 4 - Tue, Jun 18
11:35 pm - 2:15 pmSIN-IAD
50h 40m2 stops
5:25 pm - 4:55 pmIAD-SIN
35h 30m2 stops
$1,609SWISS
Find Deal
Tue, Jun 4 - Tue, Jun 18
12:50 am - 8:40 amSIN-IAD
43h 50m1 stop
10:55 am - 9:45 pmIAD-SIN
22h 50m1 stop
$1,641Emirates
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Tue, Jun 4 - Fri, Jun 21
2:15 am - 4:10 pmSIN-IAD
25h 55m1 stop
10:55 am - 8:45 pmIAD-SIN
21h 50m1 stop
$1,693
Find Deal
Mon, Jun 3 - Tue, Jun 18
2:15 am - 4:10 pmSIN-IAD
25h 55m1 stop
10:55 am - 3:35 pmIAD-SIN
40h 40m2 stops
$1,787Qatar Airways
Find Deal
Mon, Jun 3 - Tue, Jun 18
2:15 am - 4:10 pmSIN-IAD
25h 55m1 stop
10:55 am - 12:10 amIAD-SIN
25h 15m2 stops
$1,815Qatar Airways
Find Deal
Tue, Jun 4 - Fri, Jun 21
1:50 am - 11:37 pmSIN-IAD
33h 47m2 stops
6:00 am - 6:15 amIAD-SIN
36h 15m2 stops
$1,852
Find Deal
Mon, Jun 3 - Tue, Jun 18
12:40 am - 4:17 pmSIN-IAD
27h 37m2 stops
5:25 pm - 8:45 amIAD-SIN
27h 20m2 stops
$2,295KLM
Find Deal
Tue, Jun 4 - Fri, Jun 21

Flights from Singapore to Dulles Intl - Travel Insights & Trends

Get data-powered insights and trends into flights from Singapore to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Singapore to Washington Dulles Airport?

The average price of all flights from Singapore to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Washington Dulles Airport on a Tuesday and more expensive on a Monday. On your return trip to Singapore, you should consider flying back on a Wednesday, and avoid Mondays for better deals.

What is the cheapest month to fly from Singapore to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Singapore to Washington, D.C. Dulles Intl Airport, 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 Singapore to Washington, D.C. Dulles Intl Airport is November, where tickets cost $1,098 on average. On the other hand, the most expensive months are July and December, where the average cost of tickets is $1,654 and $1,643 respectively.

How far in advance should I book a flight from Singapore to Washington, D.C. Dulles Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Singapore to Washington, D.C. Dulles Intl Airport, 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 Singapore to Washington, D.C. Dulles Intl Airport, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 77 days before departure.

Which airlines provide the cheapest flights from Singapore to Washington Dulles Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to Washington Dulles Airport from Singapore were found on Air China ($490) and SAUDIA ($638), and the lowest round-trip tickets were found on United Airlines ($955) and SAUDIA ($967).

Good to know

Low season

February

High season

December

Cheapest flight

$490
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 19% increase in price.
Flight from Singapore to Washington Dulles Airport

When to book flights from Singapore to Dulles Intl

Are your dates flexible? Find out the best times to travel from Singapore to Dulles Intl 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 Singapore to Washington Dulles Airport flights

  • What is the cheapest flight from Singapore to Washington, D.C. Dulles Intl Airport?

    In the last 3 days, the lowest price for a flight from Singapore to Washington, D.C. Dulles Intl Airport was $490 for a one-way ticket and $955 for a round-trip.

  • Do I need a passport to fly between Singapore and Washington Dulles Airport?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Singapore and on arrival in Washington Dulles Airport.

  • Which aircraft models fly most regularly from Singapore to Washington Dulles Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Singapore to Washington Dulles Airport?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Singapore and Washington Dulles Airport, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Singapore to Washington, D.C., United Airlines or British Airways?

    The two airlines most popular with KAYAK users for flights from Singapore to Washington, D.C. are United Airlines and British Airways. With an average price for the route of $1,348 and an overall rating of 7.4, United Airlines is the most popular choice. British Airways is also a great choice for the route, with an average price of $1,389 and an overall rating of 6.8.

  • How does KAYAK find such low prices on flights from Singapore to Washington Dulles Airport?

    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 Singapore to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Singapore to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Singapore 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 Singapore to Washington Dulles Airport?

    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 Dulles Airport with an airline and back to Singapore with another airline. Booking your flights between Singapore and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Singapore to Washington Dulles Airport?

    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 Dulles Airport from Singapore up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from Singapore to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Singapore 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 Singapore to Dulles Intl? 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.
7.4
United AirlinesOverall score based on 10778 reviews
7.1Entertainment
6.7Food
7.7Boarding
7.2Comfort
8.1Crew
Airline reviews

Boarding was terrible. My wife uses a wheel chair and she was in an incredibly hot closed metal cargo box for close to 20 minutes before getting on board

8.0 ExcellentPaul, May 2024SJO - IAD
Read more about United Airlines reviews

Boarding was terrible. My wife uses a wheel chair and she was in an incredibly hot closed metal cargo box for close to 20 minutes before getting on board

Only water and pretzels served on six hour flight. Did not see crew rest of flight. No video screens and so no wired audio. Poor sound on plan so did not understand anything said by crew. This is a safety issue. Electrical socket did not retain charging block so could not charge phone. No video screen so could not watch movies. Phone is not a substitute.

The food that was offered based on class level of your ticket was absolutely ridiculous and disgusting. They didn't even hot tea to serve, the food was horrible. On our departure flight I was seated in premium plus economy and considering the cost of the flight the food was literally some of the worst I've ever eaten. On the return flight I sat in economy with extra leg room and was given a thin little throw "blanket" and a flimsy little pillow. The air condition was on artic and the seating arrangement wasn't really worth the money. The seat didn't recline good enough and the foot rest was laughable. Total waste.

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

I like the non stop flight to Lagos. The cabin crew were great, the food was alright and the ride was smooth. The downside is there wasn’t wifi connection from Lagos to Washington as stated. The 11hrs flight, became boring at times because of no wifi.

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.

One of the best flying experiences I’ve ever had.

The flight cancellation and process for getting a new flight was not that clear. United also had some delays that were unexpected. I am the most disappointed by the fact that I originally bought a Lufthansa ticket, only to be flown by United.

My worst flying experience so far. This flight was delayed a total of 42 hours and diverted to New York before it was finally cancelled. It was delayed 4 and a half hours in London. As we were scanning our boarding passes at the gate they advised that the flight was being diverted to JFK since the delays caused us to missed the open hours for Charlotte international customs and immigration. We were assured multiple times by airport personnel, flight attendants, and the Pilot that we would land at JFK go through customs and immigration and then reboard the plane to fly to Charlotte in the same night. When we landed in New York the pilot advised us as we were retrieving our carry on luggage that we were delayed till 10am the next morning and to see guest services to get a room for the night. During this time I had to purchase a room for a family member in Charlotte which drove over 4 and a half hours to pick us up from Charlotte. This could have been avoided if American Airlines had been up front about the delay. Then after standing in line for over 2 and a half hours at guest services we were taken by taxi to a hotel 30 minutes out of the way. Luckily I looked for other flights that night and found one at 8 am to get on. The initial flight which we were scheduled to fly to charlotte in was delayed 12 more times and was finally cancelled 42 hours after it was supposed to land. I am unaware of what happened to the guest that were supposed to fly on the flight after we were placed on another flight but 42 hours in delays for a direct flight is absolutely ridiculous.

The boarding to Gatwick was a breeze but the boarding from Gatwick was a nightmare. The onboard service to Gatwick had a lot to be desired but the onboard sevice from Gatwick was amazing ! Very nice,friendly and funny ! Would I recommend BA to anyone.? ! Yes I would!

Is it American Airlines or British Airways? This is so confusing. I got it from Portugal.

Appreciate free wine and entertainment plus good meals. Also leg room

Really quick check in and security at Heathrow Terminal 5. Staff on board were lovely and very friendly. Could have provided a few more drinks on the flight but they were available at the back of the plane.

they are improving. The crew from Charlotte to Tampa was outstanding. SMILING and trying to be helpful with the customers.

It was a flight operated by Aer Linus for BA and the plane and crew were very good but the food selection was average.

I like the food this time compared to my departure. I’m seated at the isle so it’s comfortable but I have to pay $124 for seat selection

Flight delayed an hour due to plane maintenance issues after getting in line to board. Issue was plane galley ovens which eliminated hot meals for overseas flight. Cold selections were limited due to availability. Drink and meal service (already an hour delayed) was very slow. Upon arrival in Nashville, had to sit at gate for about 15 minutes before disembarking with no explanation. Local police then boarded plane as we were disembarking so maybe that was the issue.

Leg space was not enough. The meal was not satisfactory.

Book cheap flights from Singapore to Washington, D.C.

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Singapore to Washington, D.C. found on KAYAK in the last 72 hours.
6/14Fri
1 stopAir China
34h 55mSIN-IAD
$490
10/21Mon
1 stopAir China
42h 10mSIN-IAD
$600
10/21Mon
1 stopSAUDIA
82h 30mSIN-IAD
$638
7/23Tue
1 stopTurkish Airlines
45h 40mSIN-IAD
$673
8/3Sat
1 stopSAUDIA
34h 30mSIN-IAD
$680
7/12Fri
1 stopTurkish Airlines
40h 30mSIN-IAD
$696
6/13Thu
1 stopTurkish Airlines
27h 20mSIN-IAD
$703
8/22Thu
1 stopUnited Airlines
29h 44mSIN-IAD
$983
8/15Thu
1 stopUnited Airlines
22h 07mSIN-IAD
$1,037
8/4Sun
1 stopBritish Airways
28h 20mSIN-IAD
$1,062

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Last minute flights from Singapore to Dulles Intl

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 Singapore to Washington, D.C. that are departing in the next 10 days.
6/4Tue
multi-stopUnited Airlines
37h 51mSIN-IAD
6/18Tue
multi-stopUnited Airlines
36h 30mIAD-SIN
$1,395
6/4Tue
multi-stopAir India
34h 40mSIN-IAD
6/18Tue
multi-stopAir India
32h 15mIAD-SIN
$1,435
6/4Tue
multi-stopSWISS
50h 40mSIN-IAD
6/18Tue
multi-stopSWISS
35h 30mIAD-SIN
$1,609
6/4Tue
multi-stopEmirates
43h 50mSIN-IAD
6/21Fri
multi-stopEmirates
22h 50mIAD-SIN
$1,641
6/3Mon
multi-stop
25h 55mSIN-IAD
6/18Tue
multi-stop
21h 50mIAD-SIN
$1,693
6/3Mon
multi-stopQatar Airways
25h 55mSIN-IAD
6/18Tue
multi-stopQatar Airways
40h 40mIAD-SIN
$1,787
6/4Tue
multi-stopQatar Airways
25h 55mSIN-IAD
6/21Fri
multi-stopQatar Airways
25h 15mIAD-SIN
$1,815
6/3Mon
multi-stop
33h 47mSIN-IAD
6/18Tue
multi-stop
36h 15mIAD-SIN
$1,852
6/4Tue
multi-stopKLM
27h 37mSIN-IAD
6/21Fri
multi-stopKLM
27h 20mIAD-SIN
$2,295

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Singapore - Washington Dulles Airport Flights

Departure:

Singapore (SIN)Singapore

Destination:

Washington Dulles Airport (IAD)United States

Return flight deals:

Washington Dulles Airport - Singapore

Cabin classes: