HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$621+ Cheap flights from Shannon (SNN) to Dulles Intl (IAD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — IAD
Jul 7 — Jul 141
Mon 7/7
Mon 7/14
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

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 2, 2025.

Round-trip from

$621
(United Airlines)
From Shannon to Washington, D.C. Dulles Intl
Search Deals

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 July 2, 2025.

This United Airlines deal was found by Cheapflights users on 6/30. 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 8/259:30 amSNN - IAD
1 stop13h 00mUnited Airlines
Sun 8/311:15 pmIAD - SNN
1 stop13h 15mUnited Airlines
Deal found 6/30$621
This KLM deal was found by Cheapflights users on 7/2. 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.
Mon 8/251:05 pmSNN - IAD
1 stop11h 38mKLM
Mon 9/18:23 pmIAD - SNN
1 stop9h 47mKLM
Deal found 7/2$668
This American Airlines deal was found by Cheapflights users on 6/30. 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.
Tue 9/97:40 amSNN - IAD
1 stop13h 20mAmerican Airlines
Tue 9/3010:45 pmIAD - SNN
1 stop12h 25mAmerican Airlines
Deal found 6/30$678
This KLM deal was found by Cheapflights users on 7/2. 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.
Mon 8/251:05 pmSNN - IAD
1 stop11h 38mMultiple Airlines
Sun 8/313:26 pmIAD - SNN
2 stops14h 44mMultiple Airlines
Deal found 7/2$680
This SmartFares deal was found by Cheapflights users on 6/30. 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.
Mon 8/259:15 pmSNN - IAD
2 stops23h 35mBritish Airways
Sun 8/3110:40 pmIAD - SNN
1 stop12h 30mBritish Airways
Deal found 6/30$687
This Air France deal was found by Cheapflights users on 7/2. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/251:05 pmSNN - IAD
2 stops15h 21mAir France
Mon 9/13:26 pmIAD - SNN
2 stops14h 44mAir France
Deal found 7/2$706
This SmartFares deal was found by Cheapflights users on 7/1. 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.
Mon 8/257:40 amSNN - IAD
2 stops16h 15mAer Lingus
Sun 8/315:20 pmIAD - SNN
2 stops13h 00mAer Lingus
Deal found 7/1$799

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 2, 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

Mon 8/25

9:30 am-5:30 pm

1 stop13h 00m

Washington, D.C. Dulles Intl

Sun 8/31

1:15 pm-7:30 am

1 stop13h 15m

$621

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Mon 8/25

1:05 pm-7:43 pm

1 stop11h 38m

Washington, D.C. Dulles Intl

Mon 9/1

8:23 pm-11:10 am

1 stop9h 47m

$668

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Tue 9/9

7:40 am-4:00 pm

1 stop13h 20m

Washington, D.C. Dulles Intl

Tue 9/30

10:45 pm-4:10 pm

1 stop12h 25m

$678

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Mon 8/25

1:05 pm-7:43 pm

1 stop11h 38m

Washington, D.C. Dulles Intl

Sun 8/31

3:26 pm-11:10 am

2 stops14h 44m

$680

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Mon 8/25

9:15 pm-3:50 pm

2 stops23h 35m

Washington, D.C. Dulles Intl

Sun 8/31

10:40 pm-4:10 pm

1 stop12h 30m

$687

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Mon 8/25

1:05 pm-11:26 pm

2 stops15h 21m

Washington, D.C. Dulles Intl

Mon 9/1

3:26 pm-11:10 am

2 stops14h 44m

$706

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Mon 8/25

7:40 am-6:55 pm

2 stops16h 15m

Washington, D.C. Dulles Intl

Sun 8/31

5:20 pm-11:20 am

2 stops13h 00m

$799

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Sun 8/3

9:15 pm-6:55 pm

2 stops26h 40m

$662

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Mon 7/7

5:40 pm-3:20 pm

3 stops50h 40m

$677

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Sat 8/2

5:30 pm-8:15 pm

1 stop31h 45m

$888

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 11 results
1
2

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.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated July 2, 2025.
Peruse reviews from past customers who have flown with KLM, Air France, and United Airlines from Shannon to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,366 reviews

Crew

8.4

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Overall

7.8

Food

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,366 reviews
KLM
7.8
Good
1,366 reviews

Crew

8.4

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Overall

7.8

Food

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Air France
7.5
Good
1,472 reviews
KLM
7.8
Good
1,366 reviews

Crew

8.4

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Overall

7.8

Food

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
United Airlines
7.4
Good
8,861 reviews
KLM
7.8
Good
1,366 reviews

Crew

8.4

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Overall

7.8

Food

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
American Airlines
7.2
Good
10,000 reviews
KLM
7.8
Good
1,366 reviews

Crew

8.4

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Overall

7.8

Food

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Aer Lingus
7.1
Good
1,141 reviews
KLM
7.8
Good
1,366 reviews

Crew

8.4

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Overall

7.8

Food

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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.

  • What are the cheapest airlines to fly from Shannon, Clare to Washington, D.C. Dulles Intl Airport one-way?

    One-way options have recently been found by users for as low as $662 on Aer Lingus. Other airlines that offer cheap prices include British Airways from $888 and American Airlines from $900 one-way.

  • 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 $309). Flying from Shannon, Clare to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $345). 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 Shannon?

Book flights to Shannon if you plan to visit one of these locations
Arlington
Woodbridge
Alexandria
Tysons
Silver Spring
Fredericksburg
Linthicum Heights
Gaithersburg
Fairfax
Easton
Towson
Waldorf
Laurel
Falls Church
Rockville
Springfield
National Harbor
Manassas
Dundalk
Bowie

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.