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Dulles Intl

$381+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — IAD
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap 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 September 16, 2025.

Round-trip from

$580
(TravelUp)

One-way from

$381
(Kiwi.com)
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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Find 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 September 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/16. 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 9/2512:30 pmSNN - IAD
1 stop15h 05mUnited Airlines
Mon 9/296:15 amIAD - SNN
1 stop23h 00mUnited Airlines
Deal found 9/16$460
This TravelUp deal was found by Cheapflights users on 9/16. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/77:50 amSNN - IAD
1 stop12h 45mBritish Airways
Fri 11/149:45 pmIAD - SNN
1 stop32h 45mBritish Airways
Deal found 9/16$580
This SmartFares deal was found by Cheapflights users on 9/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/87:50 amSNN - IAD
1 stop17h 40mMultiple Airlines
Sat 11/1510:20 pmIAD - SNN
1 stop13h 25mMultiple Airlines
Deal found 9/14$591
This TravelUp deal was found by Cheapflights users on 9/16. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/77:50 amSNN - IAD
2 stops20h 17mMultiple Airlines
Fri 11/145:35 pmIAD - SNN
2 stops36h 55mMultiple Airlines
Deal found 9/16$595
This SmartFares deal was found by Cheapflights users on 9/16. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/259:15 pmSNN - IAD
1 stop23h 45mMultiple Airlines
Mon 9/298:17 pmIAD - SNN
2 stops14h 53mMultiple Airlines
Deal found 9/16$597
This British Airways deal was found by Cheapflights users on 9/14. 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 11/87:50 amSNN - IAD
2 stops16h 31mBritish Airways
Sat 11/156:20 pmIAD - SNN
1 stop12h 10mBritish Airways
Deal found 9/14$604
This Expedia deal was found by Cheapflights users on 9/16. 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.
Fri 10/318:05 pmSNN - IAD
2 stops27h 40mBritish Airways
Fri 11/76:20 pmIAD - SNN
1 stop12h 10mBritish Airways
Deal found 9/16$608
This Air Canada deal was found by Cheapflights users on 9/16. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/167:40 amSNN - IAD
2 stops30h 58mMultiple Airlines
Thu 10/233:36 pmIAD - SNN
2 stops14h 44mMultiple Airlines
Deal found 9/16$641
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/169:15 pmSNN - IAD
1 stop28h 00mAmerican Airlines
Thu 10/238:25 pmIAD - SNN
2 stops14h 45mAmerican Airlines
Deal found 9/16$683

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 September 16, 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

Fri 11/7

7:50 am-3:35 pm

1 stop12h 45m

Washington, D.C. Dulles Intl

Fri 11/14

9:45 pm-11:30 am

1 stop32h 45m

$580

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Sat 11/8

7:50 am-8:30 pm

1 stop17h 40m

Washington, D.C. Dulles Intl

Sat 11/15

10:20 pm-4:45 pm

1 stop13h 25m

$591

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Thu 3/5

7:50 am-7:55 pm

1 stop17h 05m

Washington, D.C. Dulles Intl

Mon 3/9

10:45 pm-11:30 am

1 stop32h 45m

$591

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Fri 11/7

7:50 am-11:07 pm

2 stops20h 17m

Washington, D.C. Dulles Intl

Fri 11/14

5:35 pm-11:30 am

2 stops36h 55m

$595

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Sat 11/8

7:50 am-7:21 pm

2 stops16h 31m

Washington, D.C. Dulles Intl

Sat 11/15

6:20 pm-11:30 am

1 stop12h 10m

$604

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Wed 10/15

8:10 pm-8:50 pm

3 stops29h 40m

$381

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Wed 10/15

7:40 am-3:55 pm

1 stop13h 15m

$645

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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 4h 20m. 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.

  • What is the cheapest month to book a flight from Shannon, Clare to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Shannon, Clare to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Shannon, Clare to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
National Harbor
Dundalk

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