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

$399 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on KLM and American Airlines, with prices starting from $543 and $545, respectively.

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 $932). 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.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Galway?

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Galway flight should consider departing on Monday evenings when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 American Airlines, British Airways and Delta. Something to consider prior to booking your flight.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Galway?

Flights from Washington, D.C. Dulles Intl Airport to Galway lean towards being more expensive in June. Prices are generally better when you fly from Washington, D.C. Dulles Intl Airport to Galway in May, with the cheapest ticket starting at $570.

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.

$338+ Flights from Washington, D.C. Dulles Intl Airport to Galway

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Cheap flight deals from Dulles Intl to Galway

Round-trip from	$476 (KLM)
One-way from	$338 (Kiwi.com)
Popular in	June
Cheapest in	May
Average price	$945

From Washington, D.C. Dulles Intl to Galway

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One-way flight from Washington, D.C. Dulles Intl to Galway

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Highest demand for flights based on searches. 7% potential increase in price ($66 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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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 julio 31, 2025.

mar. 8/123:39 pmIAD - SNN

1 stop10h 51mUnited Airlines

mar. 8/199:30 amSNN - IAD

1 stop13h 00mUnited Airlines

Deal found 7/30

$487

mar. 8/127:25 pmIAD - SNN

2 stops15h 45mAmerican Airlines

mié. 8/209:15 pmSNN - IAD

1 stop25h 20mAmerican Airlines

Deal found 7/29

$489

lun. 8/1110:07 amIAD - SNN

2 stops20h 03mDelta

jue. 8/211:05 pmSNN - IAD

1 stop11h 38mDelta

Deal found 7/30

$491

mié. 8/278:23 pmIAD - SNN

1 stop9h 47mMultiple Airlines

jue. 9/41:05 pmSNN - IAD

2 stops15h 21mMultiple Airlines

Deal found 7/28

$531

dom. 8/108:31 pmIAD - SNN

1 stop9h 39mKLM

mar. 8/261:05 pmSNN - IAD

1 stop11h 38mKLM

Deal found 7/29

$592

dom. 8/103:37 pmIAD - SNN

2 stops14h 33mAir France

mar. 8/191:05 pmSNN - IAD

2 stops14h 50mAir France

Deal found 7/30

$679

Best flights from Dulles Intl to Galway
Discover carefully curated flight deals from Dulles Intl to Galway that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 31, 2025.

mar. 8/123:39 pmIAD - SNN

1 stop10h 51mUnited Airlines

mar. 8/199:30 amSNN - IAD

1 stop13h 00mUnited Airlines

Deal found 7/30

$487

mar. 8/127:25 pmIAD - SNN

2 stops15h 45mAmerican Airlines

mié. 8/209:15 pmSNN - IAD

1 stop25h 20mAmerican Airlines

Deal found 7/29

$489

lun. 8/118:23 pmIAD - SNN

1 stop9h 47mDelta

mar. 8/191:05 pmSNN - IAD

2 stops24h 54mDelta

Deal found 7/30

$491

mié. 8/278:23 pmIAD - SNN

1 stop9h 47mMultiple Airlines

jue. 9/41:05 pmSNN - IAD

2 stops15h 21mMultiple Airlines

Deal found 7/28

$531

dom. 8/108:31 pmIAD - SNN

1 stop9h 39mKLM

mar. 8/261:05 pmSNN - IAD

1 stop11h 38mKLM

Deal found 7/29

$592

dom. 8/103:37 pmIAD - SNN

2 stops14h 33mAir France

mar. 8/191:05 pmSNN - IAD

2 stops14h 50mAir France

Deal found 7/30

$679

Last-minute flights from Dulles Intl to Galway
Discover last-minute flight deals from Dulles Intl to Galway. Data last updated julio 31, 2025 and is based on user searches.

mié. 8/66:35 amIAD - SNN

1 stop19h 55mUnited Airlines

jue. 8/149:30 amSNN - IAD

1 stop13h 00mUnited Airlines

Deal found 7/30

$526

mié. 8/612:31 pmIAD - SNN

2 stops22h 39mAir Canada

mié. 9/109:15 pmSNN - IAD

2 stops28h 50mAir Canada

Deal found 7/30

$723

mié. 8/64:36 pmIAD - SNN

2 stops13h 44mAmerican Airlines

mié. 9/107:40 amSNN - IAD

1 stop13h 20mAmerican Airlines

Deal found 7/30

$724

mié. 8/65:20 pmIAD - SNN

2 stops17h 50mBritish Airways

jue. 8/147:40 amSNN - IAD

2 stops17h 09mBritish Airways

Deal found 7/30

$842

dom. 8/1012:12 pmIAD - SNN

1 stop17h 58mDelta

jue. 8/211:05 pmSNN - IAD

1 stop11h 38mDelta

Deal found 7/30

$487

dom. 8/103:37 pmIAD - SNN

2 stops14h 33mMultiple Airlines

mar. 8/191:05 pmSNN - IAD

1 stop11h 38mMultiple Airlines

Deal found 7/30

$591

dom. 8/108:31 pmIAD - SNN

1 stop9h 39mKLM

mar. 8/261:05 pmSNN - IAD

1 stop11h 38mKLM

Deal found 7/29

$592

dom. 8/103:37 pmIAD - SNN

2 stops14h 33mAir France

mar. 8/191:05 pmSNN - IAD

2 stops14h 50mAir France

Deal found 7/30

$679

lun. 8/118:23 pmIAD - SNN

1 stop9h 47mDelta

mar. 8/191:05 pmSNN - IAD

2 stops24h 54mDelta

Deal found 7/30

$491

lun. 8/115:20 pmIAD - SNN

2 stops13h 00mBritish Airways

lun. 8/189:15 pmSNN - IAD

2 stops26h 37mBritish Airways

Deal found 7/30

$685

mar. 8/123:39 pmIAD - SNN

1 stop10h 51mUnited Airlines

mar. 8/199:30 amSNN - IAD

1 stop13h 00mUnited Airlines

Deal found 7/30

$487

mar. 8/127:25 pmIAD - SNN

2 stops15h 45mAmerican Airlines

mié. 8/209:15 pmSNN - IAD

1 stop25h 20mAmerican Airlines

Deal found 7/29

$489

One-way flights from Dulles Intl to Galway
Search for one-way flight options from Dulles Intl to Galway. Find affordable one-way fares based on user searches. Data last updated julio 31, 2025.

mar. 8/55:20 pmIAD - SNN

2 stops34h 00mMultiple Airlines

Deal found 7/31

$338

dom. 8/241:15 pmIAD - SNN

1 stop13h 15mUnited Airlines

Deal found 7/30

$399

mar. 8/512:12 pmIAD - SNN

1 stop17h 58mKLM

Deal found 7/31

$543

jue. 8/145:55 pmIAD - SNN

1 stop21h 40mBritish Airways

Deal found 7/31

$575

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

mar. 8/12

3:39 pm-7:30 am

1 stop10h 51m

Shannon

mar. 8/19

9:30 am-5:30 pm

1 stop13h 00m

$487

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

mar. 8/12

7:25 pm-4:10 pm

2 stops15h 45m

Shannon

mié. 8/20

9:15 pm-5:35 pm

1 stop25h 20m

$489

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

lun. 8/11

8:23 pm-11:10 am

1 stop9h 47m

Shannon

mar. 8/19

1:05 pm-8:59 am

2 stops24h 54m

$491

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

mié. 8/27

8:23 pm-11:10 am

1 stop9h 47m

Shannon

jue. 9/4

1:05 pm-11:26 pm

2 stops15h 21m

$531

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

dom. 8/10

8:31 pm-11:10 am

1 stop9h 39m

Shannon

mar. 8/26

1:05 pm-7:43 pm

1 stop11h 38m

$592

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

dom. 8/10

3:37 pm-11:10 am

2 stops14h 33m

Shannon

mar. 8/19

1:05 pm-10:55 pm

2 stops14h 50m

$679

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

mar. 8/5

5:20 pm-8:20 am

2 stops34h 00m

$338

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

dom. 8/24

1:15 pm-7:30 am

1 stop13h 15m

$399

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

mar. 8/5

12:12 pm-11:10 am

1 stop17h 58m

$543

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

jue. 8/14

5:55 pm-8:35 pm

1 stop21h 40m

$575

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

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?

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

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

Delta

8.0

Very good

7,981 reviews

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

7,981 reviews

Delta

8.0

Very good

7,981 reviews

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

1,383 reviews

Delta

8.0

Very good

7,981 reviews

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!

Air France

7.5

Good

1,465 reviews

Delta

8.0

Very good

7,981 reviews

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

8,900 reviews

Delta

8.0

Very good

7,981 reviews

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!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,981 reviews

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

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Galway one-way?
$399 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on KLM and American Airlines, with prices starting from $543 and $545, respectively.
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 $932). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Dulles Intl to Galway

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Baltimore to Milltown (Kerry) flights

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Dulles Intl to Donegal flights

Dulles Intl to Milltown (Kerry) flights

Top 5 airlines flying from Dulles Intl to Galway

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest$643	Average$645	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$644	Average$936	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$646	Average$704	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$733	Average$929	FlexibilityNo cancel fee	On-time71%
British Airways	Cheapest$796	Average$945	FlexibilityNo cancel fee	On-time70%

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$338+ Cheap flights from Dulles Intl (IAD) to Galway, Ireland

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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Galway with Cheapflights

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3. Compare prices and book

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 julio 31, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Dulles Intl to Galway

Cheapest flights from Dulles Intl to GalwayExplore 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 julio 31, 2025.

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 julio 31, 2025.

Cheapflights Fare Finder

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

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.

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 julio 31, 2025.

Reviews of airlines servicing Galway

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

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.

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

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?

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

Top 5 airlines flying from Dulles Intl to Galway

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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 julio 31, 2025.