Cheap flights from Ireland to Washington from €315

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 13/5. 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.
Finnair Logo
09:30 - 00:41
DUB
-
SEA
23h 11m
1 stop
Finnair Logo
10:27 - 11:50
SEA
-
DUB
17h 23m
1 stop
€488Finnair
Wed, 24 Jun - Tue, 30 Jun
Aer Lingus Logo
15:25 - 17:10
DUB
-
SEA
9h 45mdirect
Aer Lingus Logo
19:10 - 12:20
SEA
-
DUB
9h 10mdirect
€501Aer Lingus
Fri, 22 May - Wed, 3 Jun
Multiple Airlines Logo
09:30 - 00:41
DUB
-
SEA
23h 11m
1 stop
Multiple Airlines Logo
13:30 - 09:40
SEA
-
DUB
12h 10m
1 stop
€511Multiple Airlines
Thu, 25 Jun - Tue, 30 Jun
British Airways Logo
18:45 - 11:35
DUB
-
SEA
24h 50m
1 stop
British Airways Logo
20:20 - 19:30
SEA
-
DUB
15h 10m
1 stop
€514British Airways
Sat, 23 May - Sat, 6 Jun
British Airways Logo
20:25 - 11:35
DUB
-
SEA
23h 10m
1 stop
British Airways Logo
20:20 - 12:05
SEA
-
DUB
31h 45m
1 stop
€515British Airways
Tue, 26 May - Mon, 8 Jun
KLM Logo
10:50 - 11:42
ORK
-
SEA
32h 52m
1 stop
KLM Logo
09:30 - 10:20
SEA
-
ORK
16h 50m
2 stops
€579KLM
Thu, 14 May - Tue, 19 May
Multiple Airlines Logo
10:40 - 13:50
DUB
-
PDX
59h 10m
2 stops
Multiple Airlines Logo
19:45 - 07:45
PDX
-
DUB
28h 00m
1 stop
€636Multiple Airlines
Mon, 14 Sep - Mon, 28 Sep
KLM Logo
13:05 - 23:13
SNN
-
SEA
18h 08m
1 stop
KLM Logo
22:20 - 11:10
SEA
-
SNN
28h 50m
1 stop
€669KLM
Sat, 13 Jun - Sat, 20 Jun
WestJet Logo
12:15 - 13:50
DUB
-
PDX
33h 35m
2 stops
WestJet Logo
14:30 - 08:40
PDX
-
DUB
34h 10m
2 stops
€672WestJet
Tue, 11 Aug - Tue, 25 Aug
WestJet Logo
12:15 - 13:50
DUB
-
PDX
33h 35m
2 stops
WestJet Logo
14:30 - 10:50
PDX
-
DUB
12h 20m
1 stop
€686WestJet
Tue, 11 Aug - Sat, 22 Aug

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Finnair flights from Ireland to State of Washington

Our best Finnair deals on Ireland to State of Washington flight tickets
Finnair
10 May
DUB09:30Dublin
21h 08m
1 stop
SEA22:38Seattle/Tacoma Intl
25 May
SEA10:27Seattle/Tacoma Intl
17h 23m
1 stop
DUB11:50Dublin
€485
Finnair
3 May
DUB09:30Dublin
18h 06m
1 stop
SEA19:36Seattle/Tacoma Intl
17 May
SEA13:19Seattle/Tacoma Intl
14h 31m
1 stop
DUB11:50Dublin
€487
Finnair
24 Jun
DUB09:30Dublin
23h 11m
1 stop
SEA00:41Seattle/Tacoma Intl
30 Jun
SEA10:27Seattle/Tacoma Intl
17h 23m
1 stop
DUB11:50Dublin
€488

JetBlue flights from Ireland to State of Washington

Our best JetBlue deals on Ireland to State of Washington flight tickets
JetBlue
16 Sept
DUB10:40Dublin
19h 58m
1 stop
SEA22:38Seattle/Tacoma Intl
7 Oct
SEA23:55Seattle/Tacoma Intl
24h 25m
1 stop
DUB08:20Dublin
€548
JetBlue
9 Sept
DUB11:30Dublin
17h 12m
1 stop
SEA20:42Seattle/Tacoma Intl
17 Sept
SEA23:55Seattle/Tacoma Intl
24h 25m
1 stop
DUB08:20Dublin
€549
JetBlue
9 Sept
DUB11:30Dublin
17h 12m
1 stop
SEA20:42Seattle/Tacoma Intl
17 Sept
SEA23:55Seattle/Tacoma Intl
24h 25m
1 stop
DUB08:20Dublin
€563

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 30 April 2026.
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

Cheapest return flight

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 24/6

09:30-00:41

1 stop23h 11m

Seattle/Tacoma Intl

Tue 30/6

10:27-11:50

1 stop17h 23m

€488
Fastest return journey

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 22/5

15:25-17:10

Nonstop9h 45m

Seattle/Tacoma Intl

Wed 3/6

19:10-12:20

Nonstop9h 10m

€501

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 25/6

09:30-00:41

1 stop23h 11m

Seattle/Tacoma Intl

Tue 30/6

13:30-09:40

1 stop12h 10m

€511

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sat 23/5

18:45-11:35

1 stop24h 50m

Seattle/Tacoma Intl

Sat 6/6

20:20-19:30

1 stop15h 10m

€514

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Tue 26/5

20:25-11:35

1 stop23h 10m

Seattle/Tacoma Intl

Mon 8/6

20:20-12:05

1 stop31h 45m

€515

CorkSeattle

ORK - SEA

ORKSEA

Cork

Thu 14/5

10:50-11:42

1 stop32h 52m

Seattle/Tacoma Intl

Tue 19/5

09:30-10:20

2 stops16h 50m

€579

DublinPortland

DUB - PDX

DUBPDX

Dublin

Mon 14/9

10:40-13:50

2 stops59h 10m

Portland

Mon 28/9

19:45-07:45

1 stop28h 00m

€636

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Sat 13/6

13:05-23:13

1 stop18h 08m

Seattle/Tacoma Intl

Sat 20/6

22:20-11:10

1 stop28h 50m

€669

DublinPortland

DUB - PDX

DUBPDX

Dublin

Tue 11/8

12:15-13:50

2 stops33h 35m

Portland

Tue 25/8

14:30-08:40

2 stops34h 10m

€672

DublinPortland

DUB - PDX

DUBPDX

Dublin

Tue 11/8

12:15-13:50

2 stops33h 35m

Portland

Sat 22/8

14:30-10:50

1 stop12h 20m

€686

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 September is, on average, the cheapest month to fly to State of Washington from Ireland, with most prices found around €367. If you’re not able to fly to State of Washington in September, then August is your next best option. Flight prices from Ireland to State of Washington during August average around €368.

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 Sunday when prices can be found for as low as €696. This is often the case because there is less demand to fly during this day of the week. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Ireland to State of Washington for around €829.

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 €619 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 €518 on momondo.

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

You could potentially save up to 3% 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

€307

Fastest flight time

9h 45m

Direct flights

Every day

Airports in State of Washington

96 airports
The best one-way flight to State of Washington from Ireland in the past 72 hours is €307. The best return flight deal from Ireland to State of Washington found on momondo in the last 72 hours is €805.
The fastest flight from Ireland to State of Washington takes 9h 45m
Direct flights go from Ireland to State of Washington every day.
There are 96 airports in State of Washington. From Ireland there are direct flights to Seattle/Tacoma Intl (SEA).

Frequently asked questions about flying from Ireland to Washington

  • 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 €382Free CancellationRating
7.0
646 reviews
Search Icelandair flights
Aer LingusPriceFrom €467Free CancellationRating
7.3
1,536 reviews
Search Aer Lingus 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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Sat 30/5
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