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Dulles Intl

$435+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — IAD
Aug 20 — Aug 271
Thu 8/20
Thu 8/27
1 adult, Economy
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Cheap flight deals from Shannon to Dulles Intl

Cheapest flights from Shannon to Dulles Intl
Explore the most affordable flight options available from Shannon to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 21, 2026.

This Gotogate deal was found by Cheapflights users on 7/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:30 am
SNN
-
IAD
1 stop14h 55m
Multiple Airlines
Mon 9/77:15 pm
IAD
-
SNN
1 stop11h 05m
Multiple Airlines
Deal found 7/19$625
This Delta deal was found by Cheapflights users on 7/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/31:05 pm
SNN
-
IAD
1 stop27h 44m
Delta
Mon 9/77:15 pm
IAD
-
SNN
1 stop10h 55m
Delta
Deal found 7/20$628
This Air France deal was found by Cheapflights users on 7/19. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/21:05 pm
SNN
-
IAD
2 stops16h 29m
Multiple Airlines
Wed 9/96:26 pm
IAD
-
SNN
1 stop11h 44m
Multiple Airlines
Deal found 7/19$735
This British Airways deal was found by Cheapflights users on 7/19. 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 11/205:30 pm
SNN
-
IAD
1 stop31h 25m
British Airways
Mon 11/236:05 pm
IAD
-
SNN
1 stop12h 25m
British Airways
Deal found 7/19$741

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 July 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$625
(Gotogate)

One-way from

$435
(Cheapflightsfares)
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 July 21, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Thu 9/3

1:05 pm-11:49 am

1 stop27h 44m

Washington, D.C. Dulles Intl

Mon 9/7

7:15 pm-11:10 am

1 stop10h 55m

$628

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Thu 9/3

1:05 pm-4:42 pm

2 stops32h 37m

Washington, D.C. Dulles Intl

Mon 9/7

12:29 pm-11:10 am

1 stop17h 41m

$720

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Fri 11/20

5:30 pm-7:55 pm

1 stop31h 25m

Washington, D.C. Dulles Intl

Mon 11/23

6:05 pm-11:30 am

1 stop12h 25m

$741
Cheapest one-way

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Fri 9/4

9:15 pm-7:10 pm

2 stops26h 55m

$435

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Thu 12/17

7:50 am-7:30 pm

2 stops16h 40m

$451

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Sat 9/26

11:00 pm-7:25 pm

3 stops25h 25m

$490

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Thu 12/17

7:50 am-7:55 pm

1 stop17h 05m

$557
Quickest one-way

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Fri 9/4

7:30 am-5:25 pm

1 stop14h 55m

$721

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/17

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Shannon, Clare-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Shannon, Clare-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >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 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 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?

    Delta and British Airways can get you from Shannon, Clare to Washington, D.C. Dulles Intl Airport in just under 27h 44m. Your travel time can differ by up to 3h 41m. 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
Tysons
Arlington
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Fredericksburg
Falls Church
Hanover
Manassas
Laurel
Sterling
Clinton
Hunt Valley
Cordova

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