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Dulles Intl

$438+ Cheap flights from Shannon (SNN) to Dulles Intl (IAD)

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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — IAD
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Shannon to Dulles Intl

Best flights from Shannon to Dulles Intl
Discover carefully curated flight deals from Shannon to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

This Travelocity deal was found by Cheapflights users on 12/10. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/257:50 amSNN - IAD
1 stop12h 45mBritish Airways
Sat 1/311:08 pmIAD - SNN
2 stops17h 22mBritish Airways
Deal found 12/10$636
This American Airlines deal was found by Cheapflights users on 12/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/232:45 pmSNN - IAD
2 stops31h 31mAmerican Airlines
Sun 1/256:20 pmIAD - SNN
1 stop17h 25mAmerican Airlines
Deal found 12/11$657
This Mytrip deal was found by Cheapflights users on 12/10. 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 1/253:55 pmSNN - IAD
3 stops28h 20mMultiple Airlines
Sat 1/315:30 pmIAD - SNN
2 stops25h 00mMultiple Airlines
Deal found 12/10$1,170
This British Airways deal was found by Cheapflights users on 12/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/238:05 pmSNN - IAD
1 stop24h 30mBritish Airways
Sun 1/256:20 pmIAD - SNN
1 stop20h 05mBritish Airways
Deal found 12/11$651

Find flight deals from Shannon to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Shannon (SNN) to Dulles Intl (IAD). 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$626
(British Airways)

One-way from

$438
(Kiwi.com)
Provider with most accurate pricing for Shannon-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Shannon-Washington, D.C. Dulles Intl flights.
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From Shannon to Washington, D.C. Dulles Intl
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One-way flight from Shannon to Washington, D.C. Dulles Intl
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Shannon to Dulles Intl 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 December 12, 2025.
Use the filters below to find and compare flights from Shannon to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Shannon

Fly to

Dulles Intl

Route

Depart

Return

Price

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Sun 1/25

7:50 am-3:35 pm

1 stop12h 45m

Washington, D.C. Dulles Intl

Sat 1/31

1:08 pm-11:30 am

2 stops17h 22m

$636

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Fri 1/23

8:05 pm-3:35 pm

1 stop24h 30m

Washington, D.C. Dulles Intl

Sun 1/25

6:20 pm-7:25 pm

1 stop20h 05m

$651

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Fri 1/23

2:45 pm-5:16 pm

2 stops31h 31m

Washington, D.C. Dulles Intl

Sun 1/25

6:20 pm-4:45 pm

1 stop17h 25m

$657

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Sun 1/25

3:55 pm-3:15 pm

3 stops28h 20m

Washington, D.C. Dulles Intl

Sat 1/31

5:30 pm-11:30 pm

2 stops25h 00m

$1,170

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Thu 5/28

6:05 am-2:12 pm

3 stops37h 07m

$438

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Sat 5/30

6:05 am-3:30 pm

3 stops38h 25m

$509

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Fri 3/27

7:50 am-8:55 pm

1 stop17h 05m

$513

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Fri 5/29

7:40 am-8:20 pm

1 stop17h 40m

$513

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Fri 5/29

1:10 pm-6:55 pm

3 stops34h 45m

$532

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Fri 5/29

9:15 pm-3:50 pm

1 stop23h 35m

$621

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Compare providers for flights from Shannon to Dulles Intl

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 Shannon to Dulles Intl in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 Shannon, Clare-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Shannon, Clare-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Shannon, Clare-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Shannon, Clare-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams 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 Shannon, Clare-Washington, D.C. Dulles Intl Airport 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 Shannon to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Shannon 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.

Related info for your journey

Find useful and relevant information for your journey from Shannon to Dulles Intl. 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 from for flights from Shannon to Washington, D.C. Dulles Intl?

    Most people fly from Shannon (SNN) if they book a flight from Shannon to Washington, D.C. Dulles Intl. On average, Shannon has 0 outbound flights to Washington, D.C. Dulles Intl per day from 0 airlines. Shannon is conveniently located just 2.1 mi from Shannon’s city center.

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

    British Airways and American Airlines can get you from Shannon, Clare to Washington, D.C. Dulles Intl Airport in just under 12h 45m. Your travel time can differ by up to 18h 46m. Airlines will cover a distance of 3296 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Shannon to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Shannon to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Shannon to Dulles Intl?

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

  • Can I find deals for business class flights from Shannon to Dulles Intl?

    Yes. Cheapflights offers flight deals from Shannon to Dulles Intl 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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Fairfax
Linthicum Heights
Manassas
Rockville
Laurel
Towson
National Harbor
Bowie
Largo
McLean
Clinton

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