WAS - SNN

$368 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 5/5. 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
1 adult, Economy, 0 bags

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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Everything you should know

Cheapest round-trip
$780
Multiple Airlines
Tue 5/12Wed 5/20
IAD - SNN • 2 stops
Cheapest one-way
$350
Multiple Airlines
Tue 5/5
BWI - SNN • 3 stops
Top airlines
Cheapest • from $827 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Washington, D.C. and Shannon. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $644 (round-trip)
Shortest trip • 9h 26m (one-way)
Insights
Insights
Insights
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Shannon!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Washington, D.C. to Shannon (WAS-SNN)

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Tue, May 12 - Wed, May 20
Multiple Airlines Logo
8:30 pm - 11:35 pm
IAD
-
SNN
22h 05m
2 stops
Multiple Airlines Logo
2:05 pm - 3:10 pm
SNN
-
IAD
30h 05m
2 stops
$780Multiple Airlines
Tue, May 12 - Wed, May 20
Multiple Airlines Logo
8:30 pm - 11:35 pm
IAD
-
SNN
22h 05m
2 stops
Multiple Airlines Logo
6:35 am - 8:35 pm
SNN
-
IAD
43h 00m
3 stops
$810Multiple Airlines
Mon, May 4 - Wed, May 13
Multiple Airlines Logo
8:30 pm - 9:35 pm
IAD
-
SNN
20h 05m
3 stops
Multiple Airlines Logo
5:00 pm - 8:35 pm
SNN
-
IAD
32h 35m
3 stops
$825Multiple Airlines
Tue, Sep 8 - Wed, Sep 16
United Airlines Logo
10:40 am - 7:30 am
BWI
-
SNN
15h 50m
1 stop
United Airlines Logo
9:30 am - 5:29 pm
SNN
-
BWI
12h 59m
1 stop
$827United Airlines
Tue, Sep 8 - Wed, Sep 16
Delta Logo
5:00 pm - 11:10 am
DCA
-
SNN
13h 10m
1 stop
Delta Logo
1:05 pm - 11:12 pm
SNN
-
DCA
15h 07m
1 stop
$827Delta
Tue, Sep 8 - Wed, Sep 16
Delta Logo
7:59 pm - 11:10 am
IAD
-
SNN
10h 11m
1 stop
Delta Logo
1:05 pm - 7:16 pm
SNN
-
IAD
11h 11m
1 stop
$827Delta
Tue, Sep 8 - Wed, Sep 16
United Airlines Logo
12:30 pm - 7:30 am
BWI
-
SNN
14h 00m
1 stop
United Airlines Logo
9:30 am - 5:29 pm
SNN
-
BWI
12h 59m
1 stop
$828United Airlines
Tue, Sep 8 - Wed, Sep 16
KLM Logo
5:00 pm - 11:10 am
DCA
-
SNN
13h 10m
1 stop
KLM Logo
1:05 pm - 11:12 pm
SNN
-
DCA
15h 07m
1 stop
$828KLM
Tue, Sep 8 - Wed, Sep 16
KLM Logo
2:10 pm - 11:10 am
BWI
-
SNN
16h 00m
2 stops
KLM Logo
1:05 pm - 12:16 am
SNN
-
BWI
16h 11m
2 stops
$832KLM
Sun, May 3 - Wed, May 13
Lufthansa Logo
6:05 pm - 10:15 am
DCA
-
SNN
11h 10m
1 stop
Lufthansa Logo
12:30 pm - 7:31 pm
SNN
-
DCA
12h 01m
1 stop
$898Lufthansa
Booking Insights

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.

How much is a round-trip flight from Washington, D.C. to Shannon, Clare?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. to Shannon, Clare departing in May.

Good to know

Low seasonNovember
Cheapest flight$350
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Baltimore 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 $350 for a one-way ticket and $780 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?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Washington, D.C. and Shannon, with oneworld 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 $745 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 $932 and an overall rating of 7.1.

  • 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.

Reviews of the 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 9637 reviews
8.1Crew
7.7Boarding
7.3Comfort
7.1Entertainment
6.6Food
Airline reviews

Vegetarian selection could be better. Bread was too hard to chew.

8.0 ExcellentAnonymous, Apr 2026
IAD - FRA
Read more United Airlines reviews

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Overall a good experience, however Wifi was not working on the flight.

THe flight was an hour late. You got us on the plan and we sat on the ground for 45 minutes with no information from the pilot whatsoever. Worst flight this year.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Human interaction. Thought there would be more service-even a smile would have been nice.

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

Delays with no explanation. It could have been handled better.

Flight delay for mechanical. Inbound arrived on time. No one said why mechanical delay.

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

This was one of the most frustrating travel experiences I've had to date. I had changed my flight day of to this one as it was slated to depart on time. It ended up being so delayed that my original flight took off before this one did. The boarding process began but eventually stopped and everyone had to get off the plane as a problem was identified. The person at the front desk just tried to laugh it off as if this wasn't already a huge inconvenience. From there, we eventually got to board only to sit at the gate for an additional hour because of some additional issue. This was extremely frustrating and caused a lot of stress.

It was a little concerning to hear the ground crew arguing with the flight crew over baggage space. Instead of taking them and checking them, they started checking for space in the first class cabin moving items around like the flight crew didn't know what they were doing. I was embarrassed for them.

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

Information on your arrival and departure airports