In terms of precipitation, rainfall in Galway ranges from 2.3 - 4.1 inches per month. October is typically the wettest month, when rainfall can reach 4.1 in. April is typically the driest time to visit Galway when rainfall is around 2.3 in.

If weather is an important factor for your trip to Galway, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Galway?

The most popular airlines flying from Washington, D.C. Dulles Intl Airport to Galway are Delta, United Airlines and American Airlines. Something to consider prior to booking your flight.

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

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.

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.

Find Cheap Flights from Washington, D.C. Dulles Intl Airport to Galway

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Reviews of airlines servicing Galway

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Galway, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.8

Good

8,696 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

Delta

7.8

Good

8,696 reviews

Delta

7.8

Good

8,696 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

United Airlines

7.3

Good

10,459 reviews

Delta

7.8

Good

8,696 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

American Airlines

7.0

Good

12,229 reviews

Delta

7.8

Good

8,696 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

Related info for your journey

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.

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Dulles Intl to Galway

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$489	Average$868	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$681	Average$1,603	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$753	Average$1,045	FlexibilityNo cancel fee	On-time69%

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Find cheap flights from Dulles Intl to Galway with Cheapflights

1. Tell us where you want to go

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Reviews of airlines servicing Galway

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Galway, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

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

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 Dulles Intl to Galway

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Galway by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Dulles Intl to Galway by cabin class

Find flights from Dulles Intl to Galway, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Dulles Intl and Galway flights

Browse other Dulles Intl and Galway flight options. Last updated on November 3, 2026.

Other flights from Dulles Intl

Browse through other flights departing from Dulles Intl. Flights are based on user searches made on Cheapflights and were last updated on November 3, 2026.

Popular flight searches

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Dulles Intl to Galway flights

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Top 3 airlines flying from Dulles Intl to Galway

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

Find cheap flights from Dulles Intl to Galway with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Dulles Intl to Galway

Most accurate provider

Most trusted provider

Reviews of airlines servicing Galway

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Galway, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

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

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 Dulles Intl to Galway

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Galway by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Dulles Intl to Galway by cabin class

Find flights from Dulles Intl to Galway, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Dulles Intl and Galway flights

Browse other Dulles Intl and Galway flight options. Last updated on November 3, 2026.

Other flights from Dulles Intl

Browse through other flights departing from Dulles Intl. Flights are based on user searches made on Cheapflights and were last updated on November 3, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Dulles Intl to Galway flights

Consider these flights traveling from Dulles Intl to Galway.

Top 3 airlines flying from Dulles Intl to Galway

100% Free

Book with Flexibility

Travel Smart