HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$374+ 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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — IAD
Jun 20 — Jun 271
Sat 6/20
Sat 6/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Shannon to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 May 21, 2026.

This Delta deal was found by Cheapflights users on 5/17. 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.
Sun 5/241:05 pm
SNN
-
IAD
1 stop10h 48m
Delta
Sat 5/307:33 pm
IAD
-
SNN
1 stop10h 37m
Delta
Deal found 5/17$598
This KLM deal was found by Cheapflights users on 5/18. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/281:05 pm
SNN
-
IAD
1 stop10h 48m
KLM
Mon 6/11:11 pm
IAD
-
SNN
1 stop16h 59m
KLM
Deal found 5/18$599
This Delta deal was found by Cheapflights users on 5/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/191:05 pm
SNN
-
IAD
1 stop10h 27m
Delta
Sun 6/2112:29 pm
IAD
-
SNN
1 stop17h 41m
Delta
Deal found 5/19$600
This KLM deal was found by Cheapflights users on 5/17. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/241:05 pm
SNN
-
IAD
1 stop10h 48m
Multiple Airlines
Sat 5/3011:15 am
IAD
-
SNN
2 stops18h 55m
Multiple Airlines
Deal found 5/17$708
This British Airways deal was found by Cheapflights users on 5/17. 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 6/47:30 am
SNN
-
IAD
1 stop15h 00m
British Airways
Mon 6/87:20 pm
IAD
-
SNN
1 stop20h 15m
British Airways
Deal found 5/17$753
This KLM deal was found by Cheapflights users on 5/18. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/281:05 pm
SNN
-
IAD
2 stops16h 46m
Multiple Airlines
Mon 6/13:08 pm
IAD
-
SNN
2 stops15h 02m
Multiple Airlines
Deal found 5/18$756
This British Airways deal was found by Cheapflights users on 5/19. 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 6/199:15 pm
SNN
-
IAD
1 stop25h 15m
British Airways
Sun 6/218:22 pm
IAD
-
SNN
2 stops14h 48m
British Airways
Deal found 5/19$759
This British Airways deal was found by Cheapflights users on 5/19. 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.
Thu 5/289:15 pm
SNN
-
IAD
1 stop23h 30m
British Airways
Mon 6/15:40 pm
IAD
-
SNN
1 stop21h 55m
British Airways
Deal found 5/19$770

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 May 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$598
(KLM)

One-way from

$374
(Kiwi.com)
Provider with most accurate pricing for Shannon-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Shannon-Washington, D.C. Dulles Intl flights.
Search Deals
From Shannon to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Shannon to Washington, D.C. Dulles Intl
Search Deals

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 May 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

Fri 6/19

1:05 pm-6:32 pm

1 stop10h 27m

Washington, D.C. Dulles Intl

Sun 6/21

12:29 pm-11:10 am

1 stop17h 41m

$600

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Thu 6/4

7:30 am-3:50 pm

1 stop13h 20m

Washington, D.C. Dulles Intl

Mon 6/8

7:20 pm-4:10 pm

1 stop15h 50m

$753

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Tue 6/16

7:30 am-5:30 pm

1 stop15h 00m

Washington, D.C. Dulles Intl

Wed 6/24

8:22 pm-4:10 pm

2 stops14h 48m

$783

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Sun 8/30

12:30 pm-9:28 pm

1 stop13h 58m

Washington, D.C. Dulles Intl

Sat 9/5

6:15 am-7:30 am

1 stop20h 15m

$818

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

$823
Cheapest one-way

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Sat 10/3

8:20 am-7:00 pm

3 stops39h 40m

$486

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Tue 7/28

8:00 am-10:45 am

3 stops55h 45m

$522

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Sun 7/12

9:15 pm-3:45 pm

2 stops23h 30m

$675

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Sun 7/12

9:15 pm-5:25 pm

1 stop25h 10m

$762

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Wed 8/12

9:15 pm-5:25 pm

1 stop25h 10m

$763

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/18

Showing 1-10 of 11 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?

    KLM and British Airways can get you from Shannon, Clare to Washington, D.C. Dulles Intl Airport in just under 10h 27m. Your travel time can differ by up to 7h 23m. 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
Owings Mills
Springfield
Arlington
Herndon
Rockville
Hyattsville
Manassas
Fredericksburg
Hanover
Chantilly
Laurel
Falls Church
Waldorf
Silver Spring
Largo
Clinton
Reston
Hunt Valley

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Shannon to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Dublin to Dulles Intl flights
Dublin to Baltimore flights
Cork to Baltimore flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.