Cheap flights from Ireland to Washington from €301

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Washington departing on 4/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ireland to Washington

Recent return flight deals from Ireland to Washington

Enter your travel dates to find the best prices.
Icelandair Logo
11:30 - 17:00DUB-SEA
13h 30m1 stop
Icelandair Logo
14:35 - 10:15SEA-DUB
11h 40m1 stop
€403Icelandair
Find Deal
Thu, 5 Feb - Wed, 18 Feb
Icelandair Logo
11:30 - 17:00DUB-SEA
13h 30m1 stop
Icelandair Logo
14:35 - 10:15SEA-DUB
11h 40m1 stop
€408Icelandair
Find Deal
Mon, 17 Nov - Mon, 1 Dec
British Airways Logo
10:45 - 16:55DUB-SEA
14h 10m1 stop
British Airways Logo
18:50 - 17:00SEA-DUB
14h 10m1 stop
€428British Airways
Find Deal
Fri, 26 Dec - Wed, 31 Dec
British Airways Logo
08:50 - 16:55DUB-SEA
16h 05m1 stop
British Airways Logo
13:35 - 14:15SEA-DUB
16h 40m1 stop
€431British Airways
Find Deal
Wed, 28 Jan - Sat, 7 Feb
American Airlines Logo
12:55 - 19:00DUB-SEA
38h 05m1 stop
American Airlines Logo
14:46 - 16:50SEA-DUB
18h 04m2 stops
€433American Airlines
Find Deal
Sun, 9 Nov - Sun, 23 Nov
Multiple Airlines Logo
17:15 - 11:45DUB-SEA
26h 30m1 stop
Multiple Airlines Logo
14:05 - 15:45SEA-DUB
17h 40m1 stop
€436Multiple Airlines
Find Deal
Sun, 16 Nov - Sun, 30 Nov
American Airlines Logo
11:30 - 21:59DUB-SEA
18h 29m1 stop
American Airlines Logo
18:50 - 19:40SEA-DUB
16h 50m1 stop
€437American Airlines
Find Deal
Wed, 3 Dec - Sun, 4 Jan
Multiple Airlines Logo
11:30 - 21:50DUB-SEA
18h 20m1 stop
Multiple Airlines Logo
07:07 - 07:10SEA-DUB
16h 03m1 stop
€459Multiple Airlines
Find Deal
Tue, 16 Dec - Sat, 27 Dec
Aer Lingus Logo
16:30 - 18:20DUB-SEA
9h 50mdirect
Aer Lingus Logo
20:05 - 13:10SEA-DUB
9h 05mdirect
€461Aer Lingus
Find Deal
Mon, 17 Nov - Mon, 1 Dec
Aer Lingus Logo
16:30 - 18:20DUB-SEA
9h 50mdirect
Aer Lingus Logo
18:50 - 15:40SEA-DUB
12h 50m1 stop
€492Aer Lingus
Find Deal
Fri, 26 Dec - Wed, 31 Dec

Icelandair flights from Ireland to State of Washington

Our best Icelandair deals on Ireland to State of Washington flight tickets
Icelandair
5 Feb
DUB11:30Dublin
13h 30m
1 stop
SEA17:00Seattle/Tacoma Intl
18 Feb
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
Icelandair
17 Nov
DUB11:30Dublin
13h 30m
1 stop
SEA17:00Seattle/Tacoma Intl
1 Dec
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
Icelandair
28 Jan
DUB11:30Dublin
13h 30m
1 stop
SEA17:00Seattle/Tacoma Intl
7 Feb
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin

British Airways flights from Ireland to State of Washington

Our best British Airways deals on Ireland to State of Washington flight tickets
British Airways
26 Dec
DUB10:45Dublin
14h 10m
1 stop
SEA16:55Seattle/Tacoma Intl
31 Dec
SEA18:50Seattle/Tacoma Intl
14h 10m
1 stop
DUB17:00Dublin
British Airways
28 Jan
DUB08:50Dublin
16h 05m
1 stop
SEA16:55Seattle/Tacoma Intl
7 Feb
SEA13:35Seattle/Tacoma Intl
16h 40m
1 stop
DUB14:15Dublin
British Airways
20 Mar
DUB18:15Dublin
25h 15m
1 stop
SEA12:30Seattle/Tacoma Intl
3 Apr
SEA13:48Seattle/Tacoma Intl
21h 32m
2 stops
DUB19:20Dublin

momondo Fare Finder

 
Customise your flight search to find flights from Ireland to State of 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, momondo users made 13,528 searches. Data last updated 23 October 2025.
Use the filters below to find and compare flights from Ireland to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 5/2

11:30-17:00

1 stop13h 30m

Seattle/Tacoma Intl

Wed 18/2

14:35-10:15

1 stop11h 40m

€403

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 17/11

11:30-17:00

1 stop13h 30m

Seattle/Tacoma Intl

Mon 1/12

14:35-10:15

1 stop11h 40m

€408

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 26/12

10:45-16:55

1 stop14h 10m

Seattle/Tacoma Intl

Wed 31/12

18:50-17:00

1 stop14h 10m

€428

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 28/1

08:50-16:55

1 stop16h 05m

Seattle/Tacoma Intl

Sat 7/2

13:35-14:15

1 stop16h 40m

€431

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 9/11

12:55-19:00

1 stop38h 05m

Seattle/Tacoma Intl

Sun 23/11

14:46-16:50

2 stops18h 04m

€433

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 16/11

17:15-11:45

1 stop26h 30m

Seattle/Tacoma Intl

Sun 30/11

14:05-15:45

1 stop17h 40m

€436

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 3/12

11:30-21:59

1 stop18h 29m

Seattle/Tacoma Intl

Sun 4/1

18:50-19:40

1 stop16h 50m

€437

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Tue 16/12

11:30-21:50

1 stop18h 20m

Seattle/Tacoma Intl

Sat 27/12

07:07-07:10

1 stop16h 03m

€459

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 17/11

16:30-18:20

Nonstop9h 50m

Seattle/Tacoma Intl

Mon 1/12

20:05-13:10

Nonstop9h 05m

€461

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 26/12

16:30-18:20

Nonstop9h 50m

Seattle/Tacoma Intl

Wed 31/12

18:50-15:40

1 stop12h 50m

€492

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington from

How to get the cheapest flight ticket from Ireland to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to State of Washington?

The month of February is, on average, the cheapest month to fly to State of Washington from Ireland, with most prices found around €528. If you’re not able to fly to State of Washington in February, then November is your next best option. Flight prices from Ireland to State of Washington during November average around €550.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart on your flight to State of Washington is on a Thursday when prices can be found for as low as €643. This is often the case because there is less demand to fly during this day of the week. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Ireland to State of Washington for around €804.

What is the cheapest time of day to depart on your flight to State of Washington?

Our most recent data shows that the best time of day to fly to State of Washington is in the morning. Flights from Ireland to State of Washington during this time can be as low as €573. Flights in the afternoon are often more expensive, with an average ticket price of €702.

What is the cheapest Ireland to Washington flight route?

Fly from Dublin to Seattle/Tacoma Intl for the best Ireland - Washington flight prices

How far in advance should I book a flight to State of Washington?

You are more likely to see cheaper flights to State of Washington from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around €616 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Ireland for as low as €517 on momondo.

What cabin class options are available on Ireland to Washington flights?

There is only 1 cabin class available to choose from on Ireland to Washington flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ireland to State of Washington flights?

You could potentially save up to 36% on your flight if you consider stops on a Ireland to State of Washington flight.

Cheap Ireland to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to State of Washington

Best price found

€470

Fastest flight time

9h 39m

Direct flights

Mon, Tue, Thu and Sat

Airports in State of Washington

1 airport
The best flight deal from Ireland to State of Washington found on momondo in the last 72 hours is €470
The fastest flight from Ireland to State of Washington takes 9h 39m
Direct flights go from Ireland to State of Washington on Monday, Tuesday, Thursday and Saturday. There are no airlines offering direct flights..
There is 1 airport near State of Washington: Seattle/Tacoma Intl (SEA)
  • When did momondo last update prices for flights from Ireland to Washington?

    Prices for flights from Ireland to Washington refresh daily.

  • How many operators does momondo search for flights from Ireland to Washington?

  • How old do you have to be to fly from Ireland to Washington?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to Washington.

  • What documentation or ID do you need to fly to Washington?

    The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Ireland to State of Washington?

Best airlines flying from Ireland to State of Washington

Compare and see reviews for airlines that fly from Ireland to State of Washington with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom €421Free CancellationRating
7.1
561 reviews
Search Icelandair flights
Aer LingusPriceFrom €479Free CancellationRating
7.2
1,352 reviews
Search Aer Lingus flights
British AirwaysPriceFrom €505Free CancellationRating
6.7
7,468 reviews
Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Washington?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ireland to Washington . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ireland to Washington with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ireland to Washington flights to just show those with flexible booking policies.

How can momondo help me find flights from Ireland to Washington?

Once all potential Ireland to Washington flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ireland to Washington right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ireland to Washington flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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1 adult
Sat 22/11
Sat 29/11

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