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$503+ Cheap flights from Dulles Intl (IAD) to Galway, Ireland

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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SNN
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Dulles Intl to Galway

Keep the following information in mind while searching for Dulles Intl to Galway flight deals. Data was last updated September 15, 2025.

Round-trip from

$503
(American Airlines)

Popular in

June

Cheapest in

August

Average price

$866
From Washington, D.C. Dulles Intl to Galway
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($126 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Dulles Intl to Galway

Cheapest flights from Dulles Intl to Galway
Explore the most affordable flight options available from Dulles Intl to Galway. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This American Airlines deal was found by Cheapflights users on 9/13. 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 10/1910:45 pmIAD - SNN
1 stop16h 50mAmerican Airlines
Tue 11/47:50 amSNN - IAD
1 stop12h 45mAmerican Airlines
Deal found 9/13$503
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2910:45 pmIAD - SNN
1 stop14h 00mAmerican Airlines
Wed 11/57:50 amSNN - IAD
1 stop17h 05mAmerican Airlines
Deal found 9/14$542
This American Airlines deal was found by Cheapflights users on 9/13. 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 11/301:58 pmIAD - SNN
2 stops16h 32mAmerican Airlines
Sun 12/147:50 amSNN - IAD
1 stop12h 45mAmerican Airlines
Deal found 9/13$556
This American Airlines deal was found by Cheapflights users on 9/15. 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 10/307:20 pmIAD - SNN
1 stop17h 25mAmerican Airlines
Thu 11/67:50 amSNN - IAD
2 stops16h 31mAmerican Airlines
Deal found 9/15$562
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Wed 10/85:50 pmIAD - SNN
1 stop12h 30mAmerican Airlines
Mon 10/139:15 pmSNN - IAD
1 stop25h 20mAmerican Airlines
Deal found 9/13$573
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/147:25 pmIAD - SNN
1 stop10h 55mAmerican Airlines
Tue 10/217:40 amSNN - IAD
2 stops16h 14mAmerican Airlines
Deal found 9/14$586

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Galway 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 15, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Galway that are best for you.

Fly from

Dulles Intl

Fly to

Galway

Route

Depart

Return

Price

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Sun 10/19

10:45 pm-8:35 pm

1 stop16h 50m

Shannon

Tue 11/4

7:50 am-3:35 pm

1 stop12h 45m

$503

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Wed 11/26

9:45 pm-4:45 pm

1 stop14h 00m

Shannon

Wed 1/14

7:50 am-3:35 pm

1 stop12h 45m

$542

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Wed 10/29

10:45 pm-4:45 pm

1 stop14h 00m

Shannon

Wed 11/5

7:50 am-7:55 pm

1 stop17h 05m

$542

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Sun 11/30

1:58 pm-11:30 am

2 stops16h 32m

Shannon

Sun 12/14

7:50 am-3:35 pm

1 stop12h 45m

$556

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Wed 10/22

7:25 pm-11:20 am

1 stop10h 55m

Shannon

Wed 10/29

7:50 am-8:55 pm

1 stop17h 05m

$573

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Wed 10/8

5:50 pm-11:20 am

1 stop12h 30m

Shannon

Mon 10/13

9:15 pm-5:35 pm

1 stop25h 20m

$573

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Tue 10/14

7:25 pm-4:10 pm

1 stop15h 45m

Shannon

Tue 10/21

9:15 pm-3:55 pm

1 stop23h 40m

$573

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Best time to book a flight from Dulles Intl to Galway

Have a flexible travel schedule? Discover the best time to fly to Galway from Dulles Intl 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Galway

What is the cheapest time of day to fly from IAD to G4W?

Find hourly flight availability from Dulles Intl to Galway. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Galway, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Galway

Get insights into the airlines that provide service to Galway. 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 Galway. Reviews last updated September 15, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Galway, such as Delta, KLM, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,954 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,385 reviews
Delta
8.0
Very good
7,954 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,929 reviews
Delta
8.0
Very good
7,954 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
British Airways
6.7
Okay
7,361 reviews
Delta
8.0
Very good
7,954 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Galway. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Galway?

    A quick flight from Washington, D.C. Dulles Intl Airport to Galway can take about 16h 50m. American Airlines provides one of the quickest options available for as low as $503. The distance between Washington, D.C. Dulles Intl Airport and Galway is about 3296 mi.

  • Can I find deals for flights from Dulles Intl to Galway that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Galway flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Galway?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Galway.

  • Can I find deals for business class flights from Dulles Intl to Galway?

    Yes. Cheapflights offers flight deals from Dulles Intl to Galway 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 Washington, D.C. Dulles Intl Airport to Galway?

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Galway (average of $533). Flying from Washington, D.C. Dulles Intl Airport to Galway in June is currently the most expensive (average of $926). 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

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Top 4 airlines flying from Dulles Intl to Galway

Discover the top 4 airlines that operate flights from Dulles Intl to Galway. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$634Average$704FlexibilityNo cancel feeOn-time69%
KLMCheapest$643Average$645FlexibilityNo cancel feeOn-time75%
DeltaCheapest$644Average$936FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$796Average$899FlexibilityNo cancel feeOn-time70%

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