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Dulles Intl

$377+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — IAD
Aug 6 — Aug 131
Thu 8/6
Thu 8/13
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 7, 2026.

This Gotogate deal was found by Cheapflights users on 7/7. 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.
Sun 8/307:30 am
SNN
-
IAD
1 stop13h 25m
Multiple Airlines
Sun 9/65:45 pm
IAD
-
SNN
1 stop12h 35m
Multiple Airlines
Deal found 7/7$627
This Gotogate deal was found by Cheapflights users on 7/6. 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 8/277:30 am
SNN
-
IAD
1 stop14h 55m
Multiple Airlines
Mon 8/3110:25 pm
IAD
-
SNN
1 stop12h 45m
Multiple Airlines
Deal found 7/6$632
This deal was found by Cheapflights users on 7/7. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/412:30 pm
SNN
-
IAD
1 stop13h 31m
United Airlines
Tue 8/115:45 pm
IAD
-
SNN
1 stop11h 30m
United Airlines
Deal found 7/7$730
This British Airways deal was found by Cheapflights users on 7/5. 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.
Thu 8/277:30 am
SNN
-
IAD
2 stops18h 26m
British Airways
Mon 8/315:45 pm
IAD
-
SNN
1 stop17h 25m
British Airways
Deal found 7/5$788
This American Airlines deal was found by Cheapflights users on 7/3. 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.
Thu 8/272:30 pm
SNN
-
IAD
2 stops31h 34m
American Airlines
Mon 8/3110:27 am
IAD
-
SNN
2 stops14h 33m
American Airlines
Deal found 7/3$795
This United Airlines deal was found by Cheapflights users on 7/5. 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.
Thu 8/279:30 am
SNN
-
IAD
1 stop11h 32m
United Airlines
Mon 8/3112:35 pm
IAD
-
SNN
1 stop16h 40m
United Airlines
Deal found 7/5$806

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 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$627
(Gotogate)

One-way from

$377
(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 July 7, 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 8/27

7:30 am-5:25 pm

1 stop14h 55m

Washington, D.C. Dulles Intl

Mon 8/31

10:25 pm-4:10 pm

1 stop12h 45m

$632

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Thu 8/27

7:30 am-8:56 pm

2 stops18h 26m

Washington, D.C. Dulles Intl

Mon 8/31

5:45 pm-4:10 pm

1 stop17h 25m

$790

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Sat 8/29

7:30 am-8:56 pm

2 stops18h 26m

Washington, D.C. Dulles Intl

Wed 9/2

9:30 pm-8:35 pm

1 stop18h 05m

$790

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Sat 8/29

1:05 pm-11:26 pm

2 stops15h 21m

Washington, D.C. Dulles Intl

Wed 9/2

6:10 am-11:10 am

2 stops24h 00m

$829

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Sun 8/30

7:10 am-7:01 pm

2 stops16h 51m

Washington, D.C. Dulles Intl

Sun 9/6

5:40 pm-4:10 pm

2 stops17h 30m

$833

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Fri 8/21

7:30 am-8:56 pm

2 stops18h 26m

Washington, D.C. Dulles Intl

Mon 8/24

10:25 pm-4:10 pm

1 stop12h 45m

$833

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Wed 7/22

7:30 am-7:34 pm

2 stops17h 04m

Washington, D.C. Dulles Intl

Sat 8/1

10:25 pm-8:35 pm

1 stop17h 10m

$842
Cheapest one-way

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Wed 9/9

6:05 am-7:09 pm

2 stops42h 04m

$377

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Thu 10/15

12:15 pm-7:00 pm

2 stops35h 45m

$428

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Sun 10/18

9:30 pm-7:25 pm

3 stops26h 55m

$485

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/5

Showing 1-10 of 13 resultsSorted by cheapest first
1
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  • 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?

    British Airways and Delta can get you from Shannon, Clare to Washington, D.C. Dulles Intl Airport in just under 15h 21m. Your travel time can differ by up to 3h 05m. 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
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Manassas
Falls Church
Fredericksburg
Hanover
Chantilly
Laurel
Sterling
Silver Spring
Clinton
Hunt Valley

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