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IAD - SNN

$436 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 8/21. 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
Wed 7/10
Wed 7/17

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 42,898,604 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
11:35 am - 10:50 amIAD-SNN
18h 15m1 stop
12:50 pm - 4:29 pmSNN-IAD
32h 39m2 stops
$808Delta
Find Deal
Sun, Aug 4 - Tue, Aug 20
1:10 pm - 11:20 amIAD-SNN
17h 10m2 stops
9:25 pm - 7:43 pmSNN-IAD
27h 18m2 stops
$838American Airlines
Find Deal
Wed, Aug 21 - Wed, Aug 28
8:40 pm - 11:20 amIAD-SNN
33h 40m2 stops
9:25 pm - 3:40 pmSNN-IAD
23h 15m2 stops
$903Aer Lingus
Find Deal
Fri, Sep 20 - Sun, Sep 29
5:10 pm - 11:20 amIAD-SNN
13h 10m2 stops
5:30 pm - 7:10 pmSNN-IAD
30h 40m2 stops
$917Aer Lingus
Find Deal
Fri, Oct 11 - Sat, Oct 19
6:30 am - 7:30 amIAD-SNN
20h 00m1 stop
9:30 am - 5:54 pmSNN-IAD
13h 24m1 stop
$983United Airlines
Find Deal
Wed, Aug 21 - Wed, Aug 28
10:45 pm - 3:45 pmIAD-SNN
12h 00m1 stop
5:30 pm - 3:40 pmSNN-IAD
27h 10m2 stops
$988British Airways
Find Deal
Fri, Oct 11 - Sat, Oct 19
1:10 pm - 7:30 amIAD-SNN
13h 20m1 stop
9:30 am - 4:30 pmSNN-IAD
12h 00m1 stop
$993United Airlines
Find Deal
Wed, Aug 7 - Fri, Aug 16
10:45 pm - 8:35 pmIAD-SNN
16h 50m1 stop
7:40 am - 8:30 pmSNN-IAD
17h 50m1 stop
$994British Airways
Find Deal
Sat, Oct 12 - Fri, Oct 25
10:45 pm - 3:45 pmIAD-SNN
12h 00m1 stop
5:30 pm - 8:35 pmSNN-IAD
32h 05m1 stop
$1,031
Find Deal
Fri, Oct 11 - Sat, Oct 19
5:55 pm - 11:15 amIAD-SNN
12h 20m1 stop
7:35 pm - 5:40 pmSNN-IAD
27h 05m2 stops
$1,070
Find Deal
Mon, Jul 22 - Sun, Jul 28

Good to know

Low season

January

High season

September

Cheapest flight

$436
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 15% 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 $436 for a one-way ticket and $808 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?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Washington Dulles Airport and Shannon, with Star Alliance 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 10647 reviews
7.7Boarding
7.1Entertainment
8.1Crew
7.2Comfort
6.7Food
Airline reviews

I flew Delta last week and United Airlines is a poor substitute mechanical problems with the plane and shitty food among other things made my travel experience what’s become to be expected from United no way is it ever worth the money they make us pay

4.0 OkayE., Jun 2024IAD - MAD
Read more about United Airlines reviews

I flew Delta last week and United Airlines is a poor substitute mechanical problems with the plane and shitty food among other things made my travel experience what’s become to be expected from United no way is it ever worth the money they make us pay

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.

This is by far the worst experience I have had with American Airlines. The start of this trip was a complete disaster. I purposely planned my trip so that I would weather any delays so that I could make very important meeting at the Pentagon. My flight was cancelled because of maintenance and I was put on the first flight the next day but I was late to the meeting. After a long week at the Pentagon I just wanted to go home and my flight home which was early in the day was delayed. Eventually the flight was delayed until the next day. I was not authorized a hotel room because DCA was my point of origin. So I paid for a hotel out of pocket. The flight this morning was boarded then deplaned because the aircraft was hot. The flow of information was not happening in DCA and made it worse when the news was bad. I am going to take a break from American for my next few military flights. Hopefully whatever has been going on with American Airlines will be resolved.

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.

The flight got us safely from point a to point b and on time. For a transatlantic flight that isnt nothing. Flight crew was kind and professional. The seats are super uncomfortable (worse than domestic budget airlines) and the cabin was DIRTY.

Long unexplained delay, uncomfortable back row, long waits for trash collection.

Great service on the plane and by ground staff. great prices. I was able to change seats on the plane. The allocated seats cannot be changed when checkin in online. They have to be done at the airport if you check in at the airport or on the plane by asking a stewardess / steward.

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.

Economy class has no legroom so if you have the money worth to upgrade! Food was absolutely horrible! The crew was super nice!!!!!

The flight was provided by Aer Lingus and our seats were in a poor condition (15A & 15C). They looked like they needed repairing/replacing and were uncomfortable for such a long flight. Also the arm rests on Aer Lingus planes do not lift more than around 45 degrees, instead of the usual 90 degrees upright, meaning you cannot maximum the space between you & your travel companion so as to be more comfortable for such a long flight.

Flights were actually with Aer Lingus outward and American Airlines & Aer Lingus on the return journey. Outward flight with Aer Lingus was good but the return flight with them was not so good as our seats were in a poor condition (15A & 15C) and looked like they needed replacing! The American Airlines flight from Miami to JFK New York was good and the seats were very comfortable and spacious (32D & 32E)

Awful. Delay, lost vacation time and travel time now more than 24h

Awful. Flight delayed and we missed our long flight to Rome. It has been a nightmare and we have still not arrived. It was NOT a weather delay, just poor planning by AA

Sitting in the plane for an extended period of time was very hot and uncomfortable. Very late arrival happened to not affect me but many others probably missed their connection because it also took a long time to get to the terminal.

Boarding was as fast and efficient as possible. The flight crew were amazing and extremely friendly. We enjoyed our flight.

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.

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.
8/21Wed
2 stops
31h 05mIAD-SNN
$436
8/21Wed
1 stop
12h 25mIAD-SNN
$580
6/27Thu
2 stops
20h 45mIAD-SNN
$721
6/27Thu
3 stops
35h 30mIAD-SNN
$785
6/27Thu
1 stopUnited Airlines
18h 15mIAD-SNN
$1,140

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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.
6/14Fri
multi-stop
36h 00mIAD-SNN
6/18Tue
multi-stop
25h 15mSNN-IAD
$1,604
6/14Fri
multi-stopUnited Airlines
20h 00mIAD-SNN
6/18Tue
multi-stopUnited Airlines
11h 42mSNN-IAD
$1,783
6/13Thu
multi-stopUnited Airlines
18h 06mIAD-SNN
6/22Sat
multi-stopUnited Airlines
20h 17mSNN-IAD
$1,853
6/14Fri
multi-stop
14h 15mIAD-SNN
6/18Tue
multi-stop
25h 15mSNN-IAD
$1,906
6/14Fri
multi-stop
21h 45mIAD-SNN
6/18Tue
multi-stop
13h 00mSNN-IAD
$1,957
6/14Fri
multi-stopAmerican Airlines
14h 30mIAD-SNN
6/18Tue
multi-stopAmerican Airlines
15h 14mSNN-IAD
$2,111
6/13Thu
multi-stopAir Canada
23h 50mIAD-SNN
6/22Sat
multi-stopAir Canada
26h 49mSNN-IAD
$2,142
6/13Thu
multi-stopBritish Airways
21h 52mIAD-SNN
6/22Sat
multi-stopBritish Airways
32h 05mSNN-IAD
$2,602

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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

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