HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$518+ 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 11/23. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — IAD
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
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.

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 October 23, 2025.

This American Airlines deal was found by Cheapflights users on 10/22. 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 11/132:45 pmSNN - IAD
2 stops27h 50mAmerican Airlines
Mon 11/172:16 pmIAD - SNN
2 stops16h 14mAmerican Airlines
Deal found 10/22$598
This Booking.com deal was found by Cheapflights users on 10/23. 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 12/187:50 amSNN - IAD
1 stop12h 45mMultiple Airlines
Thu 12/259:45 pmIAD - SNN
1 stop14h 00mMultiple Airlines
Deal found 10/23$599
This British Airways deal was found by Cheapflights users on 10/21. 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.
Mon 11/38:05 pmSNN - IAD
2 stops25h 44mBritish Airways
Tue 12/26:20 pmIAD - SNN
1 stop12h 10mBritish Airways
Deal found 10/21$600
This British Airways deal was found by Cheapflights users on 10/21. 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 11/78:05 pmSNN - IAD
2 stops28h 16mBritish Airways
Sat 12/68:05 pmIAD - SNN
2 stops34h 25mBritish Airways
Deal found 10/21$605
This American Airlines deal was found by Cheapflights users on 10/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/77:50 amSNN - IAD
1 stop12h 45mAmerican Airlines
Sun 12/146:20 pmIAD - SNN
1 stop12h 10mAmerican Airlines
Deal found 10/23$609
This British Airways deal was found by Cheapflights users on 10/23. 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.
Sun 12/77:50 amSNN - IAD
2 stops16h 41mBritish Airways
Sun 12/149:45 pmIAD - SNN
1 stop16h 40mBritish Airways
Deal found 10/23$621
This lastminute.com deal was found by Cheapflights users on 10/21. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/248:05 pmSNN - IAD
1 stop28h 50mMultiple Airlines
Mon 12/16:20 pmIAD - SNN
1 stop12h 10mMultiple Airlines
Deal found 10/21$652
This Gotogate deal was found by Cheapflights users on 10/21. 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.
Mon 11/247:50 amSNN - IAD
2 stops18h 04mAir Canada
Mon 12/19:45 amIAD - SNN
2 stops20h 45mAir Canada
Deal found 10/21$735
This Air Canada deal was found by Cheapflights users on 10/21. 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.
Wed 11/57:50 amSNN - IAD
2 stops17h 36mMultiple Airlines
Wed 12/34:30 pmIAD - SNN
2 stops14h 00mMultiple Airlines
Deal found 10/21$738
This Air Canada deal was found by Cheapflights users on 10/21. 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.
Mon 11/37:50 amSNN - IAD
2 stops18h 04mAir Canada
Wed 12/35:50 pmIAD - SNN
2 stops36h 40mAir Canada
Deal found 10/21$748

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 October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$585
(American Airlines)

One-way from

$518
(Cheapflightsfares)
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 October 23, 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

Thu 3/5

7:50 am-7:55 pm

1 stop17h 05m

Washington, D.C. Dulles Intl

Mon 3/9

7:20 pm-11:30 am

1 stop12h 10m

$585

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Wed 2/4

7:50 am-3:35 pm

1 stop12h 45m

Washington, D.C. Dulles Intl

Wed 2/25

9:45 pm-4:45 pm

1 stop14h 00m

$588

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Thu 11/13

2:45 pm-1:35 pm

2 stops27h 50m

Washington, D.C. Dulles Intl

Mon 11/17

2:16 pm-11:30 am

2 stops16h 14m

$598

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Mon 11/3

8:05 pm-11:07 pm

2 stops32h 02m

Washington, D.C. Dulles Intl

Wed 12/3

6:20 pm-11:30 am

1 stop12h 10m

$600

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Wed 11/5

5:30 pm-7:21 pm

2 stops30h 51m

Washington, D.C. Dulles Intl

Mon 12/1

9:45 pm-7:25 pm

1 stop16h 40m

$600

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Tue 11/4

5:30 pm-4:49 pm

2 stops28h 19m

Washington, D.C. Dulles Intl

Sat 12/6

9:45 pm-11:30 am

1 stop32h 45m

$600

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Fri 11/7

8:05 pm-11:59 pm

2 stops32h 54m

Washington, D.C. Dulles Intl

Tue 12/2

9:45 pm-4:45 pm

1 stop14h 00m

$600

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Mon 11/3

8:05 pm-11:07 pm

2 stops32h 02m

Washington, D.C. Dulles Intl

Fri 12/5

9:45 pm-3:45 pm

1 stop13h 00m

$600

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Thu 11/6

7:50 am-11:59 pm

2 stops21h 09m

Washington, D.C. Dulles Intl

Thu 12/4

9:45 pm-4:45 pm

1 stop14h 00m

$600

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Tue 11/4

8:05 pm-4:49 pm

2 stops25h 44m

Washington, D.C. Dulles Intl

Thu 12/4

9:45 pm-7:25 pm

1 stop16h 40m

$600

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/22

Showing 1-10 of 16 results
1
2

Compare providers for flights from Shannon to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Shannon to Dulles Intl in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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?

    American Airlines and British Airways 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.

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
Arlington
Springfield
Silver Spring
Hanover
Gaithersburg
Fredericksburg
Fairfax
Linthicum Heights
Falls Church
Owings Mills
Manassas
Largo
Oxon Hill
Laurel
Towson
National Harbor
Waldorf

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
Dublin to Reagan-National flights
Shannon 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.