Shannon

$323+ Cheap flights from Washington, D.C. (WAS) to Shannon (SNN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/29. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SNN
Nov 22 — Nov 291
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Cheap flight deals from Washington, D.C. to Shannon

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Shannon (SNN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$489
(American Airlines)

One-way from

$323
(Ovago)

Popular in

June

Cheapest in

August

Average price

$936
Provider with most accurate pricing for Washington, D.C. (WAS)-Shannon flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Shannon flights.
From Washington, D.C. (WAS) to Shannon
One-way flight from Washington, D.C. (WAS) to Shannon
Highest demand for flights based on searches. 12% potential increase in price ($123 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
Average for round-trip flights in October 2025

Find flight deals from Washington, D.C. to Shannon

Cheapest flights from Washington, D.C. to Shannon
Explore the most affordable flight options available from Washington, D.C. to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2025.

This American Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:35 pmBWI - SNN
1 stop15h 10mAmerican Airlines
Tue 12/97:50 amSNN - BWI
1 stop15h 55mAmerican Airlines
Deal found 10/22$490
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/186:20 pmIAD - SNN
1 stop12h 10mAmerican Airlines
Tue 11/257:50 amSNN - IAD
1 stop17h 05mAmerican Airlines
Deal found 10/21$490
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/188:35 pmBWI - SNN
1 stop15h 10mAmerican Airlines
Tue 11/257:50 amSNN - BWI
2 stops16h 40mAmerican Airlines
Deal found 10/21$501
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/183:44 pmDCA - SNN
2 stops14h 46mAmerican Airlines
Tue 11/257:50 amSNN - DCA
2 stops18h 08mAmerican Airlines
Deal found 10/21$504
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/58:35 pmBWI - SNN
1 stop14h 10mAmerican Airlines
Fri 12/127:50 amSNN - BWI
1 stop15h 55mAmerican Airlines
Deal found 10/21$505
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/59:45 pmIAD - SNN
1 stop13h 00mAmerican Airlines
Fri 12/127:50 amSNN - IAD
1 stop17h 05mAmerican Airlines
Deal found 10/21$505
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/52:54 pmDCA - SNN
2 stops15h 36mAmerican Airlines
Fri 12/127:50 amSNN - DCA
2 stops18h 08mAmerican Airlines
Deal found 10/21$519
This American Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:20 pmIAD - SNN
1 stop16h 25mAmerican Airlines
Mon 11/107:50 amSNN - IAD
1 stop12h 45mAmerican Airlines
Deal found 10/22$590
This American Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/198:35 pmBWI - SNN
1 stop15h 10mAmerican Airlines
Wed 11/267:50 amSNN - BWI
2 stops21h 40mAmerican Airlines
Deal found 10/22$601
This American Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:49 pmDCA - SNN
2 stops13h 41mAmerican Airlines
Tue 12/97:50 amSNN - DCA
2 stops15h 05mAmerican Airlines
Deal found 10/22$604
This American Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/78:35 pmBWI - SNN
1 stop14h 10mAmerican Airlines
Mon 11/107:50 amSNN - BWI
2 stops15h 52mAmerican Airlines
Deal found 10/22$606
This American Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:20 pmIAD - SNN
1 stop12h 10mAmerican Airlines
Sat 12/137:50 amSNN - IAD
1 stop17h 05mAmerican Airlines
Deal found 10/23$619

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Shannon that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 23, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Shannon that are best for you.

Fly from

Washington, D.C.

Fly to

Shannon

Route

Depart

Return

Price

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Wed 11/19

6:20 pm-4:45 pm

1 stop17h 25m

Shannon

Wed 11/26

7:50 am-7:20 pm

2 stops16h 30m

$501

BaltimoreShannon

BWI - SNN

BWISNN

Baltimore/Washington

Tue 11/18

11:09 am-11:30 am

2 stops19h 21m

Shannon

Tue 11/25

7:50 am-7:30 pm

2 stops16h 40m

$505

BaltimoreShannon

BWI - SNN

BWISNN

Baltimore/Washington

Fri 12/5

8:35 pm-3:45 pm

1 stop14h 10m

Shannon

Fri 12/12

7:50 am-6:45 pm

1 stop15h 55m

$505

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Tue 11/18

2:16 pm-11:30 am

2 stops16h 14m

Shannon

Tue 11/25

7:50 am-7:20 pm

2 stops16h 30m

$505

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Fri 12/5

9:45 pm-3:45 pm

1 stop13h 00m

Shannon

Fri 12/12

7:50 am-7:55 pm

1 stop17h 05m

$505

BaltimoreShannon

BWI - SNN

BWISNN

Baltimore/Washington

Sat 1/10

8:35 pm-4:45 pm

1 stop15h 10m

Shannon

Sun 1/18

7:50 am-6:45 pm

1 stop15h 55m

$520

Washington, D.C.Shannon

DCA - SNN

DCASNN

Washington, D.C. Reagan-National

Fri 12/5

3:54 pm-11:30 am

2 stops14h 36m

Shannon

Fri 12/12

7:50 am-5:55 pm

2 stops15h 05m

$520

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Sat 1/10

9:45 pm-4:45 pm

1 stop14h 00m

Shannon

Sun 1/18

7:50 am-3:35 pm

1 stop12h 45m

$520

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Tue 4/7

6:10 pm-4:10 pm

2 stops17h 00m

Shannon

Fri 4/17

7:40 am-3:50 pm

1 stop13h 10m

$577

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Wed 4/1

5:50 pm-11:20 am

1 stop12h 30m

Shannon

Wed 4/8

7:40 am-7:36 pm

2 stops16h 56m

$582

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/23

Showing 1-10 of 49 results
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Compare providers for flights from Washington, D.C. to Shannon

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Shannon in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-Shannon, Clare flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Shannon, Clare flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Shannon, Clare flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Shannon, Clare flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Shannon, Clare flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Washington, D.C. to Shannon

Have a flexible travel schedule? Discover the best time to fly to Shannon from Washington, D.C. with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest time of day to fly from WAS to SNN?

Find hourly flight availability from Washington, D.C. to Shannon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 23, 2025.

It’s optimal to fly from Washington, D.C. to Shannon, Clare in the morning. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight in the afternoon.

How much does it cost to fly round-trip from Washington, D.C. to Shannon, Clare?

Reviews of airlines servicing Shannon

Get insights into the airlines that provide service to Shannon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Shannon. Reviews last updated October 23, 2025.
Get a feel of what it's like to fly with United Airlines and American Airlines from Washington, D.C. to Shannon by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Shannon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Shannon from Washington, D.C.?

    If you book a flight to Shannon from Washington, D.C., you will be flying to Shannon, which is the city’s only airport. Shannon (SNN) is located 2.1 mi from the center of Shannon. There are 0 flights from Washington, D.C. to Shannon per day from 5 different airlines.

  • How long is the flight from Washington, D.C. to Shannon, Clare?

    There are many flights that can get you from Washington, D.C. to Shannon, Clare in 17h 25m. Fly via American Airlines, Air Canada, or British Airways to get the fastest option. The distance between Washington, D.C. and Shannon, Clare is about 3296 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Washington, D.C. to Shannon, Clare round-trip?

    According to our current data, Delta ($157), KLM ($643), and United Airlines ($646) offers the cheapest pricing from Washington, D.C. to Shannon, Clare. You may be able to fly from Washington, D.C. to Shannon, Clare for 82% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Washington, D.C. to Shannon, Clare one-way?

    The cheapest airlines for a one-way flight from Washington, D.C. to Shannon, Clare are JetBlue ($323), Aer Lingus ($462), and American Airlines ($493).

  • What are the most popular routes from Washington, D.C. to Shannon, Clare?

  • Can I find deals for flights from Washington, D.C. to Shannon that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Shannon flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Shannon?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Shannon.

  • Can I find deals for business class flights from Washington, D.C. to Shannon?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Shannon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top 5 airlines flying from Washington, D.C. to Shannon

Discover the top 5 airlines that operate flights from Washington, D.C. to Shannon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$157Average$795FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$643Average$645FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$646Average$798FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$790Average$996FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$796Average$945FlexibilityNo cancel feeOn-time70%

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