WAS - SNN

$391 Find Cheap Flights from Washington, D.C. 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 Washington, D.C. to Shannon departing on 6/1. 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

KAYAK searches 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
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Cheap Flights from Washington, D.C. to Shannon

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. 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.

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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Washington, D.C. to Shannon.
Discover the best prices for you by selecting your travel dates on KAYAK.
American Airlines Logo
4:16 pm - 11:20 amIAD-SNN
14h 04m2 stops
American Airlines Logo
7:40 am - 11:59 pmSNN-IAD
21h 19m2 stops
$562American Airlines
Find Deal
Wed, Aug 13 - Thu, Aug 21
Delta Logo
6:04 am - 11:10 amDCA-SNN
24h 06m1 stop
Delta Logo
1:05 pm - 10:14 amSNN-DCA
26h 09m1 stop
$596Delta
Find Deal
Sun, Jul 13 - Tue, Jul 22
United Airlines Logo
6:15 am - 10:15 amBWI-SNN
23h 00m2 stops
United Airlines Logo
12:30 pm - 9:55 amSNN-BWI
26h 25m2 stops
$601United Airlines
Find Deal
Sun, Oct 5 - Tue, Oct 14
United Airlines Logo
7:00 pm - 10:15 amBWI-SNN
34h 15m2 stops
United Airlines Logo
12:30 pm - 9:55 amSNN-BWI
26h 25m2 stops
$612United Airlines
Find Deal
Sat, Oct 4 - Tue, Oct 14
KLM Logo
10:09 am - 11:10 amIAD-SNN
20h 01m2 stops
KLM Logo
1:05 pm - 7:50 pmSNN-IAD
11h 45m1 stop
$650KLM
Find Deal
Wed, May 28 - Wed, Jun 11
KLM Logo
5:00 pm - 11:10 amDCA-SNN
13h 10m1 stop
KLM Logo
1:05 pm - 11:30 pmSNN-DCA
15h 25m1 stop
$675KLM
Find Deal
Sun, Aug 17 - Sun, Aug 24
 Logo
9:40 am - 11:10 amIAD-SNN
20h 30m2 stops
 Logo
1:05 pm - 7:51 pmSNN-IAD
11h 46m1 stop
Wed, Jun 11 - Thu, Jul 31
Air France Logo
1:45 pm - 11:10 amDCA-SNN
16h 25m2 stops
Air France Logo
1:05 pm - 11:30 pmSNN-DCA
15h 25m1 stop
$740Air France
Find Deal
Sun, Aug 17 - Sun, Aug 24
 Logo
9:45 am - 11:20 amIAD-SNN
20h 35m2 stops
 Logo
7:40 am - 9:05 pmSNN-IAD
18h 25m2 stops
Sun, Oct 5 - Wed, Oct 15
Air France Logo
5:00 pm - 11:10 amDCA-SNN
13h 10m1 stop
Air France Logo
1:05 pm - 11:25 pmSNN-DCA
15h 20m2 stops
$845Air France
Find Deal
Thu, Aug 28 - Mon, Sep 1
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KAYAK's insights & trends for Washington, D.C. to Shannon flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. to Shannon, 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 Washington, D.C. to Shannon is February, where tickets cost $784 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $1,272 and $1,113 respectively.

Good to know

Low seasonDecember
High seasonJune
Cheapest flight$391
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 32% increase in price.
Flight from Reagan Washington National Airport to Shannon

When to book flights from Washington, D.C. to Shannon

Are your dates flexible? Find out the best times to travel from Washington, D.C. 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 flights from Washington, D.C. to Shannon

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Shannon was $391 for a one-way ticket and $562 for a round-trip.

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

    Yes

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

    Washington, D.C. is served by 2 major airports and there is only 1 main airport in Shannon. You will leave Washington, D.C. from one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be arriving at Shannon.

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

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

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

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Washington, D.C. 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 $1,056 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 $898 and an overall rating of 7.2.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Shannon from Washington, D.C. 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, D.C. 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, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. 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, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airlines flying from Washington, D.C. 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 Washington, D.C. 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 8696 reviews
7.1Entertainment
8.1Crew
7.7Boarding
6.6Food
7.3Comfort
Airline reviews

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

10.0 ExcellentAnonymous, Apr 2025SFO - HKG
Read more United Airlines reviews

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

A bit rush for transit. Food and entertainment are not available

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

Multiple delays and not straight answer from the United team

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

We were delayed in Toronto on the tarmac for THREE hours with no clear indication as to why except that it was not a safety hazard. Pilot did apologize more than once but even he was unable to explain why exactly we were delayed. I overheard the stewards saying that the captain was very frustrated with the situation as well because he was not able to explain why except it had something to do with water supply or system on the aircraft and now we needed to wait for an engineer to approve the aircraft for flight. It was very frustrating and distressing as a passenger and we should have been given complimentary meals at the very least.

Several delays. Next flight was worse. Did not arrive home until 2am PT

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Took off on time and successfully avoided weather that looked to be a problem along the way

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

The flight to Tokyo AA61 took off about two hours late, but then had to turn back. By that time the crew had to be replaced. Then they kept promising to take off in an hour, then in 3, then switch to the next day.

Everything you need to know for your flight from Washington, D.C. to Shannon

Information on your arrival and departure airports

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