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Dulles Intl

$514+ 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — IAD
Apr 26 — May 31
Sun 4/26
Sun 5/3
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 March 27, 2026.

This Expedia deal was found by Cheapflights users on 3/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/77:30 am
SNN
-
IAD
1 stop17h 50m
British Airways
Thu 5/147:15 pm
IAD
-
SNN
1 stop20h 20m
British Airways
Deal found 3/23$741
This Flighttix deal was found by Cheapflights users on 3/25. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:30 am
SNN
-
IAD
1 stop17h 40m
British Airways
Wed 4/2910:15 pm
IAD
-
SNN
1 stop12h 55m
British Airways
Deal found 3/25$770
This British Airways deal was found by Cheapflights users on 3/25. 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 4/27:30 am
SNN
-
IAD
2 stops18h 00m
British Airways
Mon 4/67:05 pm
IAD
-
SNN
1 stop16h 05m
British Airways
Deal found 3/25$816
This Gotogate deal was found by Cheapflights users on 3/25. 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 4/27:30 am
SNN
-
IAD
1 stop13h 25m
Multiple Airlines
Mon 4/65:45 pm
IAD
-
SNN
1 stop12h 35m
Multiple Airlines
Deal found 3/25$843
This Mytrip deal was found by Cheapflights users on 3/25. 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.
Wed 4/222:05 pm
SNN
-
IAD
2 stops30h 05m
Multiple Airlines
Wed 4/298:30 pm
IAD
-
SNN
2 stops18h 50m
Multiple Airlines
Deal found 3/25$893
This United Airlines deal was found by Cheapflights users on 3/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/209:30 am
SNN
-
IAD
1 stop20h 15m
United Airlines
Mon 7/273:30 pm
IAD
-
SNN
1 stop11h 00m
United Airlines
Deal found 3/23$946
This Booking.com deal was found by Cheapflights users on 3/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/77:30 am
SNN
-
IAD
2 stops18h 07m
Air Canada
Thu 5/149:55 am
IAD
-
SNN
2 stops29h 40m
Air Canada
Deal found 3/23$975
This British Airways deal was found by Cheapflights users on 3/23. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:30 am
SNN
-
IAD
1 stop13h 20m
British Airways
Tue 10/67:15 pm
IAD
-
SNN
1 stop15h 55m
British Airways
Deal found 3/23$993

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 March 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$741
(Expedia)

One-way from

$514
(oojo)
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 March 27, 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

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Thu 5/7

7:30 am-7:25 pm

2 stops16h 55m

Washington, D.C. Dulles Intl

Thu 5/14

7:15 pm-8:35 pm

1 stop20h 20m

$753

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Wed 4/22

7:30 am-7:25 pm

2 stops16h 55m

Washington, D.C. Dulles Intl

Wed 4/29

5:45 pm-4:10 pm

1 stop17h 25m

$787

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Wed 4/22

2:05 pm-3:10 pm

2 stops30h 05m

Washington, D.C. Dulles Intl

Wed 4/29

8:30 pm-8:20 pm

2 stops18h 50m

$893

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Mon 7/20

9:30 am-12:45 am

1 stop20h 15m

Washington, D.C. Dulles Intl

Mon 7/27

3:30 pm-7:30 am

1 stop11h 00m

$946

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Thu 5/7

7:30 am-8:37 pm

2 stops18h 07m

Washington, D.C. Dulles Intl

Thu 5/14

9:55 am-8:35 pm

2 stops29h 40m

$975

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Mon 7/20

9:15 pm-7:35 pm

2 stops27h 20m

Washington, D.C. Dulles Intl

Mon 7/27

5:40 pm-4:10 pm

1 stop17h 30m

$1,049
Quickest round-trip

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Wed 5/6

12:30 pm-9:25 pm

2 stops13h 55m

Washington, D.C. Dulles Intl

Wed 5/13

12:45 pm-10:15 am

2 stops16h 30m

$4,172
Cheapest one-way

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Mon 5/11

9:15 pm-3:45 pm

2 stops23h 30m

$514
Quickest one-way

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Fri 5/29

7:30 am-3:45 pm

1 stop13h 15m

$539

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Mon 5/11

9:15 pm-3:45 pm

1 stop23h 30m

$539

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/22

Showing 1-10 of 14 resultsSorted by cheapest first
1
2
  • 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 can get you from Shannon, Clare to Washington, D.C. Dulles Intl Airport in just under 17h 50m. Your travel time can differ by up to . Airlines will cover a distance of 3296 mi.

  • 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
Owings Mills
Arlington
Springfield
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Fredericksburg
Largo
Bowie
Clinton
Towson
College Park
Cordova

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