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IAD - SNN

$328 Find cheap flights from Washington Dulles Airport to Shannon

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Shannon departing on 9/2. 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 Shannon

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Shannon, 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 Washington, D.C. to Shannon, as well as popular online travel agencies
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

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Cheap flight deals from Dulles Intl to Shannon (IAD-SNN)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Shannon that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
11:00 pm - 4:45 pmIAD-SNN
13h 45m1 stop
8:05 pm - 3:45 pmSNN-IAD
24h 40m1 stop
$648British Airways
Find Deal
Mon, Oct 28 - Mon, Nov 4
11:00 pm - 7:25 pmIAD-SNN
16h 25m1 stop
7:45 am - 7:30 pmSNN-IAD
16h 45m2 stops
$662British Airways
Find Deal
Tue, Oct 29 - Wed, Nov 6
4:49 pm - 4:10 pmIAD-SNN
18h 21m2 stops
9:25 pm - 7:44 pmSNN-IAD
27h 19m2 stops
$733American Airlines
Find Deal
Mon, Sep 23 - Thu, Oct 3
8:29 am - 11:30 amIAD-SNN
23h 01m2 stops
7:45 am - 3:03 pmSNN-IAD
36h 18m2 stops
Sun, Oct 27 - Wed, Nov 6
2:05 pm - 11:20 amIAD-SNN
16h 15m2 stops
7:45 am - 11:57 pmSNN-IAD
20h 12m2 stops
$753American Airlines
Find Deal
Fri, Oct 25 - Sat, Nov 2
3:45 pm - 11:30 amIAD-SNN
15h 45m2 stops
7:45 am - 3:03 pmSNN-IAD
36h 18m2 stops
Sun, Oct 27 - Sun, Nov 3
12:48 pm - 7:30 amIAD-SNN
13h 42m1 stop
9:30 am - 8:56 pmSNN-IAD
16h 26m1 stop
$853United Airlines
Find Deal
Mon, Aug 19 - Tue, Aug 27
6:30 am - 7:30 amIAD-SNN
20h 00m1 stop
9:30 am - 3:58 pmSNN-IAD
11h 28m1 stop
$857United Airlines
Find Deal
Sun, Sep 1 - Sun, Sep 8
5:10 pm - 4:10 pmIAD-SNN
18h 00m2 stops
9:25 pm - 3:40 pmSNN-IAD
23h 15m2 stops
$923Aer Lingus
Find Deal
Sun, Sep 1 - Sun, Sep 8
8:40 pm - 8:35 pmIAD-SNN
18h 55m2 stops
9:25 pm - 3:40 pmSNN-IAD
23h 15m2 stops
$933Aer Lingus
Find Deal
Sun, Sep 22 - Tue, Oct 8

Flights from Dulles Intl to Shannon - Travel Insights & Trends

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

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

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Washington Dulles Airport to Shannon found on KAYAK was with American Airlines for $679. British Airways proposed a round-trip connection from $648 and American Airlines from $733.

Good to know

Low season

January

High season

September

Cheapest flight

$328
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Washington Dulles Airport to Shannon

When to book flights from Dulles Intl to Shannon

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

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Shannon was $328 for a one-way ticket and $648 for a round-trip.

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

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

  • Which airports will I be using when flying from Washington Dulles Airport to Shannon?

    When flying out of Washington Dulles Airport you will be using Washington, D.C. Dulles Intl. You will be landing at Shannon, also known as Shannon.

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

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

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

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

  • Which is the best airline for flights from Washington, D.C. to Shannon, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Shannon are United Airlines and American Airlines. With an average price for the route of $1,102 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $935 and an overall rating of 7.3.

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

    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 Washington Dulles Airport to Shannon.

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

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

    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 Shannon with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and SNN 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 Washington Dulles Airport to Shannon?

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

See more FAQs

Top 4 airlines serving from Dulles Intl to Shannon

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Shannon. 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 Dulles Intl to Shannon? 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 10777 reviews
6.7Food
7.1Entertainment
7.7Boarding
8.1Crew
7.2Comfort
Airline reviews

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

4.0 OkayAnonymous, May 2024IAD - DEN
Read more about United Airlines reviews

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Food was terrible Not many options Stewards dont care Delay

The ride was good but no food ot entertainment hence, it was just over an hour flight.

they made me check my carryon. There was space in the overhead bins.

The plane was delayed 2 hours. The wifi did not work. The seat in first class was not comfortable because the bottom felt like it lost all of its padding. And I did not like when the flight attendant made me wait at my seat to use the bathroom and didn't tell me why. If there were too many people using the 1st Class bathroom, she should have told me to go in the back, coach bathrooms. I guess I have to feel fortunate that they found 2 local pilots to still fly the plane tonight after the original pilots ended up at an airport 60 miles away due to high winds.

The crew were really great, but the 4 hour delay in small chunks was the worst.

Every experience was good except for the lack of comfort in those economy seats. I never had knee pain until that flight. Those seats are uncomfortable.

I bought internet for the flight. Don’t waste your money. I wasn’t able to download a 1 Mb file from Google Docs during a 3-4 hr period. You can only use WhatsApp and email if you are willing to wait.

Just a crappy airline. The same every time. You feel you are a cow on a farm. You are being being whipped and pulled.

AA1537 the AC was not working properly. It was very hot and uncomfortable.

Overall the flights pretty good. The snacks we’re good and they were plenty of them. Both boarding and deplaning went quickly.

Delayed abs delayed Gate crew giving poor info - we are definitely leaving at —- Ultimately to cancel flight after 4+ hours of delays Just cancel it earlier

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

Lots of weather delays that were poorly communicated and managed. I get there are weather delays but they didn’t make it clear what was happening or comfortable on the plane

Everything was on time; the flight attendants and the gate personnel were very pleasant and helpful.

Our second leg to Jackson WY was unable to land due to weather. We were flown back to Dallas after stopping in SLC. We were given hotel rooms and vouchers. We were told that we would be back on the same plane in the morning. Instead we were given a different flight with different seats. Not a good experience. No one knew what was going on.

Perfect flight. On time departure and early arrival. Smooth flight.

Awful! The flight was delayed and we sat on the plane in DCA for an hour because fuel was out in the wrong part of the plane and would not be accessible during flight. So the plane had to be refueled in correct tank. They also allowed someone to get off of the plane. This delayed my six hour flight by an hour and made me miss my connecting flight. I ran to new gate and American Airlines agents new about the delay and even knew that I was trying to make the connection. They knew thru communication with my friend while in flight that I was in the airport and running to the new gate and they still closed the gate and refused to let me on the new flight despite plane still being at the gate. It was horrible and I had to be rebooked on a flight for 24 hours later. This has been a nightmare and if American Airlines can cause customers to be delayed and then have zero empathy as having an on time flight was more important to them than helping a customer who was delayed by no fault of her own, then it's seems that it's not a company that I want to continue to give my loyalty to. I'm so disgusted.

Help was available but timing was bad in my case

Are Longus was fine. I booked thru Kayak and was unable to get my business class seat early. Sat next to galley. Crew forgot to wake me for breakfast.

I was pleasantly surprised - it has been awhile since I traveled with them - other than being delayed leaving Malaga everything ran very smoothly- yes I would travel with aer Lingus again and yes I would recommended

I loved how they arrange boarding (starting with people seated in back and moving to the front). Flight crew was very polite and welcoming. Seating was ok, I felt like there was enough leg space however it is noticeable when the passenger in front of you sets their seat back.

Flight staff very friendly and helpful where possible. Late flight and travelling with young child, cabin lights remained on for the duration of the flight which was a little disappointing considering the time of the flight. Overall very happy to travel with Aer Lingus.

Nice to be on a flight that wasn't fully booked so there were only two of us in the three seat row.

The only problem was there are games on the entertaiment system. The guy behind me played poker the entire time and poking the back of my seat. I hope they remove these.

Delayed due to weather... fine. But then the board us. Rows 15 and back had to go down the stairs and back up the back stair entrance to the plane. No assistance offered. Then they inform us that we are delayed for paperwork for an hour. So why did we board? Then, about 45min later they inform us that it'll be another 60-90mins. Really? No wifi, no seat entertainment, no drink or snacks offered. And we were not allowed to deboard.

Great travel. Wonderful experience. Hope to do it again in the near future. God willing

Aer Lingus doesn't have plug ins for devices at each seat. They also did not give me a dairy free meal as requested and confirmed by staff. It was as if I had not requested anything. Otherwise, they were great!

There were a lot of empty rows. As a single passenger I should not have been seated with 2 others. The WiFi didn’t work. The Kosher meal was awful.

Very bed boarding, there was overbooked and make a lot of problems and noises

There was a problem in the luggage because there were not porters

On my way from Chicago to London, I was seated next to a quite heavy passenger. I could barely move. BA should have ensured that overweight customers are placed in comfortable seats and not to penalize also other passengers because BA is not willing to accommodate these passengers and their needs. No respect at all.

The flight as far as timings go was excellent. Unfortunately we ended up sat with someone on a night flight who had been drinking alcohol before boarding and BA staff were happily serving him more alcohol. He was very drunk which made our flight uncomfortable and awkward. My partner had this person lying on him whilst asleep. Alcohol should be served minimally. If there had been an emergency this person would not have been in a fit state to act accordingly.

First time flying with BA and I will do it again. Staff at airport and on board were very nice and helpful

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

Wonderful service and very comfy in the bulkhead in Economy Plus! Delicious food.

The BA team at Sky Harbor is deplorable, full of unnecessary attitude and poor communication. It seems like every member of the team was looking at another to solve the problem, instead of taking agency to do so themselves. I saw no less than 6 altercations with the same gate agent where he threatened to revoke the passengers boarding pass for asking a wildly reasonable question, something as simple as where the cue to board was. I’ve complained to BA before but it seems this isn’t an issue for them, which is very disappointing

Boarding poor in London,ok in Chicago. Don’t like Heatrow/terminal5

It was very good. We got a late start by about an hour and a half. However I worked rather have that than crash. It was purely mechanical. They had our tickets ready when we came off the plane in London for the next leg. The only mishap was when we got to Lisbon my husbands luggage made or bit mine didn't. All was not lost because I did finally get it 2 days later. I was really pleased that they c made the effort.

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

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Shannon found on KAYAK in the last 72 hours.
9/2Mon
2 stops
33h 05mIAD-SNN
$328
9/2Mon
3 stops
18h 20mIAD-SNN
$458
9/2Mon
1 stop
12h 25mIAD-SNN
$613
9/15Sun
2 stops
17h 30mIAD-SNN
$614
9/16Mon
2 stopsAmerican Airlines
15h 53mIAD-SNN
$679
9/15Sun
1 stopAir France
12h 55mIAD-SNN
$715
9/16Mon
1 stopUnited Airlines
18h 05mIAD-SNN
$730
9/14Sat
1 stopUnited Airlines
28h 20mIAD-SNN
$746
9/12Thu
2 stopsKLM
14h 50mIAD-SNN
$765
7/12Fri
3 stops
21h 45mIAD-SNN
$1,351

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Last minute flights from Dulles Intl to Shannon

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 Washington, D.C. to Shannon that are departing in the next 10 days.
5/31Fri
multi-stop
20h 39mIAD-SNN
6/3Mon
multi-stop
17h 50mSNN-IAD
$1,722
5/31Fri
multi-stopBritish Airways
19h 18mIAD-SNN
6/3Mon
multi-stopBritish Airways
27h 17mSNN-IAD
$1,774
5/31Fri
multi-stopBritish Airways
12h 00mIAD-SNN
6/3Mon
multi-stopBritish Airways
17h 50mSNN-IAD
$2,010

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Washington Dulles Airport - Shannon Flights

Departure:

Washington Dulles Airport (IAD)United States

Destination:

Shannon (SNN)Ireland

Return flight deals:

Shannon - Washington Dulles Airport

Cabin classes:

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