What is the cheapest airline that flies from Ireland to Washington?

WestJet, JetBlue, and Aer Lingus are the most popular carriers operating from Ireland to Washington

How many flights depart from Ireland to State of Washington on average per week?

As of June 2026, there are 24 flights per week flying from Ireland to State of Washington. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

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

Flight times from Ireland to State of Washington vary, but if you’re flying out of Dublin and flying into Seattle (one of the most popular routes), then the duration is 9h 45m on average. Another popular route from Ireland to State of Washington is flying from Cork to Seattle, which will take roughly 18h. Keep in mind that layovers or delays could extend your travel time.

How many flights depart from Ireland to State of Washington on average per day?

As of June 2026, 3 flights take off from Ireland and land in State of Washington each day. The most common flight departure time for this route is 15:00, with 100% of daily flights taking off in the afternoon.

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?

There are 3 operators available for flights from Ireland to Washington as of June 2026.

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.

€322 Cheap Flights from Ireland to Washington in 2026

Discover deals from 900+ travel sites with momondo.

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Find the cheapest flights from Ireland to Washington

Round-trip

One-way

Last minute

Direct

Recent return flight deals from Ireland to Washington

Enter your travel dates to find the best prices.

19:05 - 13:45

DUB

SEA

26h 40m

1 stop

15:55 - 18:20

SEA

DUB

18h 25m

1 stop

€517Scandinavian Airlines

Fri, 11 Sep - Sat, 19 Sep

10:40 - 22:38

DUB

SEA

19h 58m

1 stop

23:55 - 08:20

SEA

DUB

24h 25m

1 stop

€523JetBlue

Tue, 15 Sep - Tue, 6 Oct

19:05 - 13:45

DUB

SEA

26h 40m

1 stop

15:55 - 18:20

SEA

DUB

18h 25m

1 stop

€526Scandinavian Airlines

Sat, 19 Sep - Tue, 29 Sep

11:30 - 17:00

DUB

PDX

13h 30m

1 stop

14:45 - 10:15

PDX

DUB

11h 30m

1 stop

€684Icelandair

Sun, 1 Nov - Sat, 14 Nov

07:50 - 16:55

SNN

SEA

17h 05m

1 stop

15:40 - 16:45

SEA

SNN

17h 05m

2 stops

€719British Airways

Thu, 19 Nov - Mon, 23 Nov

07:50 - 23:18

SNN

SEA

23h 28m

2 stops

14:46 - 16:45

SEA

SNN

17h 59m

2 stops

€724British Airways

Thu, 19 Nov - Mon, 23 Nov

07:10 - 17:10

ORK

SEA

18h 00m

2 stops

19:10 - 23:50

SEA

ORK

20h 40m

2 stops

€777Aer Lingus

Sun, 26 Jul - Sun, 2 Aug

07:30 - 17:10

SNN

SEA

17h 40m

2 stops

21:45 - 09:30

SEA

SNN

27h 45m

1 stop

€800Multiple Airlines

Wed, 5 Aug - Mon, 31 Aug

06:15 - 16:27

ORK

SEA

18h 12m

1 stop

13:30 - 14:40

SEA

ORK

17h 10m

1 stop

€826Multiple Airlines

Wed, 5 Aug - Wed, 12 Aug

07:30 - 17:10

SNN

SEA

17h 40m

2 stops

19:10 - 20:35

SEA

SNN

17h 25m

2 stops

€850Aer Lingus

Wed, 5 Aug - Mon, 31 Aug

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Icelandair flights from Ireland to State of Washington

Our best Icelandair deals on Ireland to State of Washington flight tickets

Icelandair

18 Jun

DUB14:15Dublin

11h 40m

1 stop

SEA17:55Seattle/Tacoma Intl

23 Jun

SEA23:25Seattle/Tacoma Intl

29h 50m

1 stop

DUB13:15Dublin

€557

Icelandair

3 Sept

DUB14:15Dublin

14h 25m

1 stop

SEA20:40Seattle/Tacoma Intl

23 Sept

SEA19:00Seattle/Tacoma Intl

32h 05m

1 stop

DUB11:05Dublin

€558

Icelandair

10 Oct

DUB14:15Dublin

14h 25m

1 stop

SEA20:40Seattle/Tacoma Intl

23 Oct

SEA15:40Seattle/Tacoma Intl

13h 35m

1 stop

DUB13:15Dublin

€575

British Airways flights from Ireland to State of Washington

Our best British Airways deals on Ireland to State of Washington flight tickets

British Airways

9 Dec

DUB08:50Dublin

16h 05m

1 stop

SEA16:55Seattle/Tacoma Intl

16 Dec

SEA18:50Seattle/Tacoma Intl

14h 10m

1 stop

DUB17:00Dublin

€584

British Airways

9 Dec

DUB08:50Dublin

16h 05m

1 stop

SEA16:55Seattle/Tacoma Intl

16 Dec

SEA18:50Seattle/Tacoma Intl

14h 10m

1 stop

DUB17:00Dublin

€584

British Airways

18 Jun

DUB20:20Dublin

23h 15m

1 stop

SEA11:35Seattle/Tacoma Intl

2 Jul

SEA20:20Seattle/Tacoma Intl

13h 35m

1 stop

DUB17:55Dublin

€687

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 11/9

19:05-13:45

1 stop26h 40m

Seattle/Tacoma Intl

Sat 19/9

15:55-18:20

1 stop18h 25m

€517

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Tue 15/9

10:40-22:38

1 stop19h 58m

Seattle/Tacoma Intl

Tue 6/10

23:55-08:20

1 stop24h 25m

€523

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sat 19/9

19:05-13:45

1 stop26h 40m

Seattle/Tacoma Intl

Tue 29/9

15:55-18:20

1 stop18h 25m

€526

Fastest return journey

DublinPortland

DUB - PDX

DUBPDX

Dublin

Sun 1/11

11:30-17:00

1 stop13h 30m

Portland

Sat 14/11

14:45-10:15

1 stop11h 30m

€684

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Thu 19/11

07:50-16:55

1 stop17h 05m

Seattle/Tacoma Intl

Mon 23/11

15:40-16:45

2 stops17h 05m

€719

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Thu 19/11

07:50-23:18

2 stops23h 28m

Seattle/Tacoma Intl

Mon 23/11

14:46-16:45

2 stops17h 59m

€724

CorkSeattle

ORK - SEA

ORKSEA

Cork

Sun 26/7

07:10-17:10

2 stops18h 00m

Seattle/Tacoma Intl

Sun 2/8

19:10-23:50

2 stops20h 40m

€777

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Wed 5/8

07:30-17:10

2 stops17h 40m

Seattle/Tacoma Intl

Mon 31/8

21:45-09:30

1 stop27h 45m

€800

CorkSeattle

ORK - SEA

ORKSEA

Cork

Wed 5/8

06:15-16:27

1 stop18h 12m

Seattle/Tacoma Intl

Wed 12/8

13:30-14:40

1 stop17h 10m

€826

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Wed 5/8

07:30-17:10

2 stops17h 40m

Seattle/Tacoma Intl

Mon 31/8

19:10-20:35

2 stops17h 25m

€850

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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

The month of August is, on average, the cheapest month to fly to State of Washington from Ireland, with most prices found around €372. If you’re not able to fly to State of Washington in August, then May is your next best option. Flight prices from Ireland to State of Washington during May average around €373.

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 €703. 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 €827.

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 €622 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 €523 on momondo.

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

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

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	€678
Fastest flight time	9h 45m
Direct flights	Every day
Airports in State of Washington	96 airports

The best flight deal from Ireland to State of Washington found on momondo in the last 72 hours is €678

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).

Search flight deals

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?
There are 3 operators available for flights from Ireland to Washington as of June 2026.
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?
momondo data reveals that the most frequently booked plane model on the route from Ireland to State of Washington is Airbus A330-200, representing 85.13% of all bookings. The subsequent popular models are Airbus A318/A319/A320/A321 at 3.08%, Airbus A321neo at 2.56%, and Airbus A330-300 at 2.05%.

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
Icelandair	PriceFrom €387	Free Cancellation	Rating 7.0 674 reviews		Search Icelandair flights
Aer Lingus	PriceFrom €475	Free Cancellation	Rating 7.3 1,603 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.