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$393+ Cheap flights from Ireland to Washington

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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SEA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Ireland to Washington

Keep the following information in mind while searching for Ireland to Washington flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$472
(Gotogate)

One-way from

$393
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$667

Good round-trip deal

$562 or less

Good one-way deal

$635 or less
Provider with most accurate pricing for Dublin-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Dublin-Seattle/Tacoma Intl flights.
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From Ireland to Washington
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One-way flight from Ireland to Washington
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Highest demand for flights based on searches. 19% potential increase in price ($177 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Ireland to Washington.
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Price to beat on a one-way flight from Ireland to Washington.
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Find flight deals from Ireland to Washington

Cheapest flights from Ireland to Washington
Explore the most affordable flight options available from Ireland to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2711:30 amDUB - SEA
1 stop13h 30mIcelandair
Thu 12/42:35 pmSEA - DUB
1 stop11h 40mIcelandair
Deal found 10/28$471
This Gotogate deal was found by Cheapflights users on 10/29. 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.
Wed 12/311:30 amDUB - SEA
1 stop13h 30mIcelandair
Sun 12/142:35 pmSEA - DUB
1 stop11h 40mIcelandair
Deal found 10/29$472
This FlightHub deal was found by Cheapflights users on 10/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1211:30 amDUB - SEA
1 stop13h 30mIcelandair
Tue 11/182:35 pmSEA - DUB
1 stop11h 40mIcelandair
Deal found 10/30$484
This American Airlines deal was found by Cheapflights users on 10/28. 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 11/2710:30 amDUB - SEA
1 stop33h 00mAmerican Airlines
Mon 12/111:42 amSEA - DUB
2 stops21h 23mAmerican Airlines
Deal found 10/28$496
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Fri 11/711:30 amDUB - SEA
1 stop18h 50mAmerican Airlines
Sun 11/232:46 pmSEA - DUB
2 stops18h 04mAmerican Airlines
Deal found 10/30$501
This American Airlines deal was found by Cheapflights users on 10/29. 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.
Fri 12/511:30 amDUB - SEA
1 stop18h 20mAmerican Airlines
Sun 12/711:22 amSEA - DUB
2 stops19h 43mAmerican Airlines
Deal found 10/29$503
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Fri 11/2112:55 pmDUB - SEA
1 stop16h 21mAmerican Airlines
Mon 12/111:42 amSEA - DUB
2 stops21h 23mAmerican Airlines
Deal found 10/28$504
This Air France deal was found by Cheapflights users on 10/30. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/75:55 amDUB - SEA
1 stop13h 50mMultiple Airlines
Mon 11/102:05 pmSEA - DUB
1 stop17h 40mMultiple Airlines
Deal found 10/30$505
This Icelandair deal was found by Cheapflights users on 10/28. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/711:30 amDUB - SEA
1 stop13h 30mIcelandair
Mon 11/102:35 pmSEA - DUB
1 stop11h 40mIcelandair
Deal found 10/28$506
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Sat 11/2211:30 amDUB - SEA
2 stops31h 14mAmerican Airlines
Sat 11/291:35 pmSEA - DUB
1 stop12h 15mAmerican Airlines
Deal found 10/28$507
This Delta deal was found by Cheapflights users on 10/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/225:55 amDUB - SEA
1 stop13h 50mDelta
Sat 12/137:20 amSEA - DUB
1 stop17h 25mDelta
Deal found 10/30$508
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/75:55 amDUB - SEA
1 stop13h 50mDelta
Sun 11/2311:36 amSEA - DUB
1 stop13h 09mDelta
Deal found 10/28$509

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ireland to Washington 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 30, 2025.
Use the filters below to find and compare flights from Ireland to Washington that are best for you.

Fly from

Ireland

Fly to

Washington

Route

Depart

Return

Price

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 11/27

11:30 am-5:00 pm

1 stop13h 30m

Seattle/Tacoma Intl

Tue 12/2

2:35 pm-10:15 am

1 stop11h 40m

$506

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 11/7

11:30 am-5:00 pm

1 stop13h 30m

Seattle/Tacoma Intl

Mon 11/10

2:35 pm-10:15 am

1 stop11h 40m

$506

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 11/12

5:55 am-11:45 am

1 stop13h 50m

Seattle/Tacoma Intl

Mon 11/17

9:43 am-12:40 pm

2 stops18h 57m

$510

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sat 11/22

5:55 am-11:45 am

1 stop13h 50m

Seattle/Tacoma Intl

Sat 12/13

7:20 am-8:45 am

1 stop17h 25m

$510

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 11/7

5:55 am-11:45 am

1 stop13h 50m

Seattle/Tacoma Intl

Mon 11/10

7:15 am-12:40 pm

2 stops21h 25m

$511

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 11/5

5:55 am-11:45 am

1 stop13h 50m

Seattle/Tacoma Intl

Wed 11/19

9:43 am-4:20 pm

2 stops22h 37m

$512

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 11/23

5:55 am-8:36 pm

2 stops22h 41m

Seattle/Tacoma Intl

Sun 12/7

9:45 am-12:40 pm

2 stops18h 55m

$516

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 11/9

5:55 am-3:35 pm

2 stops17h 40m

Seattle/Tacoma Intl

Mon 11/24

7:15 am-12:40 pm

2 stops21h 25m

$516

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 11/7

5:55 am-8:20 pm

2 stops22h 25m

Seattle/Tacoma Intl

Sun 11/23

7:20 am-12:40 pm

2 stops21h 20m

$518

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Wed 3/11

5:30 pm-5:55 pm

1 stop31h 25m

Seattle/Tacoma Intl

Sun 3/15

7:50 pm-7:25 pm

1 stop16h 35m

$658

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 47 results
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Best time to book a flight from Ireland to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Ireland 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 Ireland to Washington

What is the cheapest month to book a flight from Ireland to State of Washington?

Currently, March is the cheapest month in which you can book a flight from Ireland to State of Washington (average of $480). Flying from Ireland to State of Washington in July is currently the most expensive (average of $792). 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 time of day to fly from IE to WA?

Find hourly flight availability from Ireland to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ireland to State of Washington as you normally would.

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated October 30, 2025.
See what other customers who have flown with American Airlines, Aer Lingus, and Icelandair from Ireland to Washington have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,035 reviews

Comfort

7.2

Boarding

7.5

Food

6.4

Overall

7.2

Entertainment

6.9

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Nordia,Sep 2025

KIN - MIA

We were to land in Miami sometime after 3pm but couldn’t due to bad weather, we flew around for 2 hrs until we had to land in Forth Myers to refuel, we had to sit another 2 hrs at Forth Myers until given the clearance to refuel, we were hungry, thirsty and frustrated at that point. All the had on the flight to offer was a small plastic glass of water and a pack of biscoff, I requested a cup of tea and was told none was there. We were basically at another airport and not one of the staff could consider that the passengers might be hungry or thirsty being on a plane for around 8 hrs, which you weren’t prepared for, at least find some hot water on board.
American Airlines
7.2
Good
11,035 reviews
American Airlines
7.2
Good
11,035 reviews

Comfort

7.2

Boarding

7.5

Food

6.4

Overall

7.2

Entertainment

6.9

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Nordia,Sep 2025

KIN - MIA

We were to land in Miami sometime after 3pm but couldn’t due to bad weather, we flew around for 2 hrs until we had to land in Forth Myers to refuel, we had to sit another 2 hrs at Forth Myers until given the clearance to refuel, we were hungry, thirsty and frustrated at that point. All the had on the flight to offer was a small plastic glass of water and a pack of biscoff, I requested a cup of tea and was told none was there. We were basically at another airport and not one of the staff could consider that the passengers might be hungry or thirsty being on a plane for around 8 hrs, which you weren’t prepared for, at least find some hot water on board.
Aer Lingus
7.2
Good
1,365 reviews
American Airlines
7.2
Good
11,035 reviews

Comfort

7.2

Boarding

7.5

Food

6.4

Overall

7.2

Entertainment

6.9

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Nordia,Sep 2025

KIN - MIA

We were to land in Miami sometime after 3pm but couldn’t due to bad weather, we flew around for 2 hrs until we had to land in Forth Myers to refuel, we had to sit another 2 hrs at Forth Myers until given the clearance to refuel, we were hungry, thirsty and frustrated at that point. All the had on the flight to offer was a small plastic glass of water and a pack of biscoff, I requested a cup of tea and was told none was there. We were basically at another airport and not one of the staff could consider that the passengers might be hungry or thirsty being on a plane for around 8 hrs, which you weren’t prepared for, at least find some hot water on board.
Icelandair
7.1
Good
562 reviews
American Airlines
7.2
Good
11,035 reviews

Comfort

7.2

Boarding

7.5

Food

6.4

Overall

7.2

Entertainment

6.9

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Nordia,Sep 2025

KIN - MIA

We were to land in Miami sometime after 3pm but couldn’t due to bad weather, we flew around for 2 hrs until we had to land in Forth Myers to refuel, we had to sit another 2 hrs at Forth Myers until given the clearance to refuel, we were hungry, thirsty and frustrated at that point. All the had on the flight to offer was a small plastic glass of water and a pack of biscoff, I requested a cup of tea and was told none was there. We were basically at another airport and not one of the staff could consider that the passengers might be hungry or thirsty being on a plane for around 8 hrs, which you weren’t prepared for, at least find some hot water on board.

Related info for your journey

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

  • How popular is this Ireland to State of Washington flight route?

    Flights from Ireland to Washington have been viewed 2 times in the past calendar month.

  • How long is the flight from Ireland to State of Washington?

    There are many flights that can get you from Ireland to State of Washington in 13h 30m. Fly via Icelandair, Delta, or British Airways to get the fastest option. The distance from Ireland to State of Washington is about 4523 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Ireland to Washington that include hotel bookings?

    Yes. In addition to deals on Ireland to Washington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ireland to Washington?

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

  • Can I find deals for business class flights from Ireland to Washington?

    Yes. Cheapflights offers flight deals from Ireland to Washington 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 Ireland to State of Washington?

    Currently, March is the cheapest month in which you can book a flight from Ireland to State of Washington (average of $480). Flying from Ireland to State of Washington in July is currently the most expensive (average of $792). 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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Alternative routes for Ireland to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Ireland to Washington

Discover the top 3 airlines that operate flights from Ireland to Washington. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$525Average$724FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$556Average$712FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$640Average$860FlexibilityNo cancel feeOn-time71%

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