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Cheap flights from Ireland to Seattle from £295

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SEA
27 Jan — 3 Feb1
1 adult

Cheap flight deals from Ireland to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Ireland (IE0) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 22 January 2025.

Round-trip from

£295

Good round-trip deal

£509 or less
Icelandair
  • Icelandair
  • 10/5-25/5
  • 2 total stops
  • 43h 20m total
  • Ireland to Seattle
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Price to beat on a round-trip flight from Ireland to Seattle/Tacoma Intl.
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Find flight deals from Ireland to Seattle

Cheapest flights from Ireland to Seattle
Explore the most affordable flight options available from Ireland to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 January 2025.

Sat 10/512:15DUB - SEA
1 stop13h 35mIcelandair
Sun 25/523:30SEA - DUB
1 stop29h 45mIcelandair
Deal found 21/1£295
Fri 14/320:35DUB - SEA
1 stop22h 45mBritish Airways
Sun 23/319:50SEA - DUB
1 stop14h 00mBritish Airways
Deal found 21/1£351
Sun 18/510:40DUB - SEA
1 stop14h 19mLufthansa
Wed 28/508:00SEA - DUB
1 stop18h 20mLufthansa
Deal found 20/1£373
Mon 17/205:55DUB - SEA
1 stop13h 51mDelta
Mon 24/209:55SEA - DUB
2 stops21h 45mDelta
Deal found 20/1£374
Sun 16/213:25DUB - SEA
1 stop30h 21mKLM
Sun 2/307:10SEA - DUB
1 stop17h 35mKLM
Deal found 21/1£378
Mon 7/412:40DUB - SEA
1 stop16h 31mMultiple Airlines
Fri 18/420:20SEA - DUB
1 stop15h 00mMultiple Airlines
Deal found 21/1£381
Sat 3/518:00DUB - SEA
1 stop30h 00mFinnair
Wed 14/517:40SEA - DUB
1 stop15h 35mFinnair
Deal found 21/1£392
Fri 14/316:30DUB - SEA
Nonstop9h 45mAmerican Airlines
Sun 23/319:50SEA - DUB
1 stop16h 15mAmerican Airlines
Deal found 21/1£483
Fri 7/209:00DUB - SEA
1 stop20h 30mUnited Airlines
Mon 10/207:00SEA - DUB
2 stops16h 00mUnited Airlines
Deal found 21/1£588
Mon 30/606:00DUB - SEA
1 stop13h 15mAir France
Thu 10/718:30SEA - DUB
1 stop20h 10mAir France
Deal found 20/1£642
Thu 5/619:05DUB - SEA
1 stop26h 45mScandinavian Airlines
Fri 27/616:00SEA - DUB
2 stops33h 15mScandinavian Airlines
Deal found 21/1£658

Find flights from Ireland to Seattle within your budget

Customise your flight search to find flights from Ireland to Seattle 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 858,174 searches. Data last updated 22 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sat 10/5

12:15-17:50

1 stop13h 35m

Seattle/Tacoma Intl

Sun 25/5

23:30-13:15

1 stop29h 45m

£295

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 14/3

20:35-12:20

1 stop22h 45m

Seattle/Tacoma Intl

Sun 23/3

19:50-16:50

1 stop14h 00m

£351

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 18/5

10:40-16:59

1 stop14h 19m

Seattle/Tacoma Intl

Wed 28/5

08:00-10:20

1 stop18h 20m

£373

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 17/2

05:55-11:46

1 stop13h 51m

Seattle/Tacoma Intl

Mon 24/2

09:55-15:40

2 stops21h 45m

£374

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 16/2

13:25-11:46

1 stop30h 21m

Seattle/Tacoma Intl

Sun 2/3

07:10-08:45

1 stop17h 35m

£378

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 7/4

12:40-21:11

1 stop16h 31m

Seattle/Tacoma Intl

Fri 18/4

20:20-19:20

1 stop15h 00m

£381

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sat 3/5

18:00-16:00

1 stop30h 00m

Seattle/Tacoma Intl

Wed 14/5

17:40-17:15

1 stop15h 35m

£392

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 14/3

16:30-19:15

Nonstop9h 45m

Seattle/Tacoma Intl

Sun 23/3

19:50-19:05

1 stop16h 15m

£483

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 7/2

09:00-21:30

1 stop20h 30m

Seattle/Tacoma Intl

Mon 10/2

07:00-07:00

2 stops16h 00m

£588

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 30/6

06:00-11:15

1 stop13h 15m

Seattle/Tacoma Intl

Thu 10/7

18:30-22:40

1 stop20h 10m

£642

Flights are sorted by cheapest return flights first.

Deals found on 21/1

Showing 1-10 of 18 results
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Best time to book a flight from Ireland to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Ireland with our price prediction graph.
Estimated return 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.

Travel insights for flights from Ireland to Seattle

Get recent, data-driven insights about flights from Ireland to Seattle including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Ireland to Seattle?

Currently, January is the cheapest month in which you can book a flight from Ireland to Seattle (average of £622). Flying from Ireland to Seattle in July is currently the most expensive (average of £946). 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 SEA?

Find hourly flight availability from Ireland to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 January 2025.

When flying from Ireland to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, 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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated 22 January 2025.
Delta
8.0
Very Good
8,521 reviews
Check prices

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very Good
8,521 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,286 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France
7.4
Good
1,490 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,984 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

  • What airport do you fly into for flights to Seattle from Ireland?

    For a flight from Ireland to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city.

  • How popular is this Ireland to Seattle flight route?

    Flights from Ireland to Seattle/Tacoma Intl have been viewed 65 times in the past calendar month.

  • What are the cheapest airlines to fly from Ireland to Seattle one-way?

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as £342. However, be on the lookout for offers from Icelandair and Aer Lingus, as they are both options that can get you from Ireland to Seattle for a low price.

  • What are the most reliable airlines from Ireland to Seattle?

    Before booking your flight to Seattle from Ireland, check out the most reliable airlines to get you to your destination on time: American Airlines (70%), Aer Lingus (70%), British Airways( 70%).

  • What are the cheapest flights from Ireland to Seattle?

    The cheapest flight price from Ireland to Seattle is £397. On average you can expect to pay £666. The most popular route, (Dublin - Seattle/Tacoma Intl), can usually be booked for £656.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ireland to Seattle 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 Seattle?

    Currently, January is the cheapest month in which you can book a flight from Ireland to Seattle (average of £622). Flying from Ireland to Seattle in July is currently the most expensive (average of £946). 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

Travelling to a place near Ireland?

Book flights to Ireland if you plan to visit one of these locations
Tacoma
Leavenworth
Bothell

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Alternative routes for Ireland to Seattle

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 Seattle

Discover the top 3 airlines that operate flights from Ireland to Seattle. 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 858,174 searches. Data last updated 22 January 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£347Average£689FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£377Average£529FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£397Average£671FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Ireland to Seattle?

Cheapflights helps you search for flights from Ireland to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Ireland to Seattle?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ireland to Seattle.

Can Cheapflights find flights from Ireland to Seattle with no change fees?

Yes, we can. To see specific flights from Ireland to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Ireland to Seattle become cheaper?

Of course! You can now track prices for flights from Ireland to Seattle and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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