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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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SNN
Sep 12 — Sep 191
Sat 9/12
Sat 9/19
1 adult, Economy
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Cheap 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 August 13, 2026.

This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:25 am -
1 stop18h 05m
Tue 10/612:30 pm -
2 stops15h 29m
Deal found 8/12$729
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:20 pm -
1 stop8h 55m
Tue 10/612:30 pm -
1 stop14h 29m
Deal found 8/12$729
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/213:15 pm -
1 stop11h 15m
Tue 10/612:30 pm -
1 stop13h 57m
Deal found 8/12$729
This United Airlines deal was found by Cheapflights users on 8/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/294:30 pm -
1 stop12h 45m
Thu 10/1512:30 pm -
1 stop27h 14m
Deal found 8/9$738
This United Airlines deal was found by Cheapflights users on 8/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:33 am -
1 stop20h 42m
Tue 10/1312:30 pm -
1 stop32h 53m
Deal found 8/9$738
This Mytrip deal was found by Cheapflights users on 8/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:30 pm -
2 stops20h 05m
Tue 10/61:00 pm -
2 stops35h 25m
Deal found 8/10$752
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:25 pm -
1 stop12h 15m
Thu 10/1512:15 pm -
2 stops35h 45m
Deal found 8/9$772
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:25 pm -
1 stop12h 15m
Mon 10/126:05 pm -
2 stops30h 30m
Deal found 8/9$778
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:25 pm -
1 stop12h 15m
Tue 10/1311:50 am -
2 stops36h 35m
Deal found 8/9$792
This United Airlines deal was found by Cheapflights users on 8/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/210:40 pm -
1 stop30h 35m
Tue 10/1312:30 pm -
1 stop13h 57m
Deal found 8/9$793
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:45 am -
1 stop22h 30m
Fri 10/212:30 pm -
1 stop15h 29m
Deal found 8/11$794
This Mytrip deal was found by Cheapflights users on 8/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/68:30 pm -
2 stops19h 05m
Wed 9/162:05 pm -
2 stops35h 30m
Deal found 8/10$795

Find 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 August 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$729
(United Airlines)

One-way from

$323
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$707
Provider with most accurate pricing for Washington, D.C. (WAS)-Shannon flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Shannon flights.
Search Deals
From Washington, D.C. (WAS) to Shannon
Search Deals
One-way flight from Washington, D.C. (WAS) to Shannon
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($157 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($53 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

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 August 13, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Shannon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreShannon

BWI Baltimore/Washington - SNN Shannon

BWISNN

Baltimore/Washington

Mon 9/21

8:25 am-7:30 am

1 stop18h 05m

Shannon

Tue 10/6

12:30 pm-10:59 pm

2 stops15h 29m

$729

Washington, D.C.Shannon

DCA Washington, D.C. Reagan-National - SNN Shannon

DCASNN

Washington, D.C. Reagan-National

Tue 9/29

4:30 pm-10:15 am

1 stop12h 45m

Shannon

Wed 10/14

12:30 pm-2:24 pm

1 stop30h 54m

$738

Washington, D.C.Shannon

DCA Washington, D.C. Reagan-National - SNN Shannon

DCASNN

Washington, D.C. Reagan-National

Tue 9/29

4:30 pm-10:15 am

1 stop12h 45m

Shannon

Thu 10/15

12:30 pm-10:44 am

1 stop27h 14m

$738

BaltimoreShannon

BWI Baltimore/Washington - SNN Shannon

BWISNN

Baltimore/Washington

Mon 9/28

6:25 am-10:15 am

2 stops22h 50m

Shannon

Mon 10/5

12:30 pm-1:58 pm

2 stops30h 28m

$802

Washington, D.C.Shannon

DCA Washington, D.C. Reagan-National - SNN Shannon

DCASNN

Washington, D.C. Reagan-National

Wed 9/2

3:30 pm-7:30 am

1 stop11h 00m

Shannon

Tue 9/8

9:30 am-7:09 pm

1 stop14h 39m

$825

Washington, D.C.Shannon

DCA Washington, D.C. Reagan-National - SNN Shannon

DCASNN

Washington, D.C. Reagan-National

Tue 9/1

5:55 pm-10:15 am

1 stop11h 20m

Shannon

Tue 9/8

9:30 am-8:09 pm

1 stop15h 39m

$825

Washington, D.C.Shannon

IAD Washington, D.C. Dulles Intl - SNN Shannon

IADSNN

Washington, D.C. Dulles Intl

Tue 8/25

5:45 pm-10:15 am

1 stop11h 30m

Shannon

Tue 9/15

12:30 pm-9:28 pm

1 stop13h 58m

$825

BaltimoreShannon

BWI Baltimore/Washington - SNN Shannon

BWISNN

Baltimore/Washington

Wed 8/26

10:25 am-7:30 am

1 stop16h 05m

Shannon

Fri 9/11

12:30 pm-10:30 am

2 stops27h 00m

$829

Washington, D.C.Shannon

DCA Washington, D.C. Reagan-National - SNN Shannon

DCASNN

Washington, D.C. Reagan-National

Sat 9/5

7:10 pm-7:30 am

1 stop31h 20m

Shannon

Thu 9/17

9:30 am-9:09 pm

1 stop16h 39m

$831

Washington, D.C.Shannon

IAD Washington, D.C. Dulles Intl - SNN Shannon

IADSNN

Washington, D.C. Dulles Intl

Sat 9/5

10:27 pm-7:30 am

1 stop28h 03m

Shannon

Thu 9/17

9:30 am-12:44 am

1 stop20h 14m

$831

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/9

Showing 1-10 of 59 resultsSorted by cheapest first
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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 August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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

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

Airfare is typical for this route at the moment.
Washington, D.C. to Shannon, Clare flights typically cost between $588 and $808 in September.
The cheapest round-trip price found within the last 5 days was $729 on United Airlines (Sep 21-Oct 6).

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 August 13, 2026.
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.
United Airlines
7.4
Good
10,111 reviews

Entertainment

7.1

Food

6.7

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
10,111 reviews
United Airlines
7.4
Good
10,111 reviews

Entertainment

7.1

Food

6.7

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
American Airlines
7.1
Good
11,923 reviews
United Airlines
7.4
Good
10,111 reviews

Entertainment

7.1

Food

6.7

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

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 3 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 18h 05m. Fly via United Airlines to get the fastest option. The distance between Washington, D.C. and Shannon, Clare is about 3254 mi.

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

    According to our current data, Delta ($157), American Airlines ($489), and United Airlines ($735) 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 81% less than the average price by searching for these airlines.

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

    Most travelers choose Washington, D.C. Dulles Intl - Shannon, Baltimore/Washington - Shannon or Washington, D.C. Reagan-National - Shannon when deciding on the best route 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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Alternative routes for Washington, D.C. to Shannon

See prices for flight routes from nearby airports that may be better suited for you.
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Dulles Intl to Shannon flights
Reagan-National to Shannon flights
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Top 3 airlines flying from Washington, D.C. to Shannon

Discover the top 3 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 August 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$157Average$1,603FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$489Average$633FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$735Average$1,045FlexibilityNo cancel feeOn-time69%

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