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Cheap flights from Ireland to Seattle from £329

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 27/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SEA
24 Dec — 31 Dec1
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 19 December 2024.

Round-trip from

£420

One-way from

£329
Icelandair
  • Icelandair
  • 27/3-6/4
  • 2 total stops
  • 24h 50m total
  • Ireland to Seattle
Search Deals
WestJet
  • WestJet
  • 27/5
  • 2 total stops
  • 35h 08m total
  • Ireland to Seattle
Search Deals

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 19 December 2024.

Tue 24/1205:55DUB - SEA
2 stops25h 40mDelta
Tue 31/1213:35SEA - DUB
1 stop18h 05mDelta
Deal found 17/12£688
Sat 21/1209:00DUB - SEA
1 stop20h 20mUnited Airlines
Sat 28/1205:00SEA - DUB
2 stops21h 05mUnited Airlines
Deal found 18/12£739
Fri 20/1205:00DUB - SEA
2 stops16h 20mMultiple Airlines
Fri 3/106:05SEA - DUB
1 stop17h 05mMultiple Airlines
Deal found 18/12£913
Fri 20/1205:00DUB - SEA
2 stops16h 20mLufthansa
Fri 3/115:10SEA - DUB
1 stop18h 05mLufthansa
Deal found 18/12£1,065
Mon 23/1216:55DUB - SEA
2 stops30h 30mTurkish Airlines
Tue 7/111:05SEA - DUB
2 stops42h 35mTurkish Airlines
Deal found 18/12£2,052
Fri 20/1211:30DUB - SEA
2 stops17h 19mIcelandair
Fri 3/109:14SEA - DUB
2 stops17h 01mIcelandair
Deal found 18/12£2,433

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 19 December 2024.

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Any airport

Fly to

Any airport

Route

Depart

Return

Price

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 27/3

11:30-18:00

1 stop13h 30m

Seattle/Tacoma Intl

Sun 6/4

15:45-11:05

1 stop11h 20m

£420

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 15/1

16:40-10:36

1 stop25h 56m

Seattle/Tacoma Intl

Sat 25/1

11:45-10:20

1 stop14h 35m

£423

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 15/1

12:30-22:25

2 stops41h 55m

Seattle/Tacoma Intl

Sat 25/1

14:00-11:40

2 stops37h 40m

£463

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 11/4

08:55-16:00

1 stop15h 05m

Seattle/Tacoma Intl

Sat 19/4

18:40-16:55

1 stop14h 15m

£517

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 13/1

20:30-11:20

1 stop22h 50m

Seattle/Tacoma Intl

Mon 20/1

18:50-17:05

1 stop14h 15m

£531

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 26/3

08:55-19:05

2 stops17h 10m

Seattle/Tacoma Intl

Sat 5/4

07:20-10:45

1 stop19h 25m

£536

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sat 1/2

09:00-11:20

3 stops34h 20m

Seattle/Tacoma Intl

Sat 8/2

07:00-07:00

2 stops16h 00m

£580

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 27/3

05:55-12:40

1 stop13h 45m

Seattle/Tacoma Intl

Sun 6/4

09:41-10:25

2 stops16h 44m

£614

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sat 17/5

15:25-17:05

Nonstop9h 40m

Seattle/Tacoma Intl

Mon 26/5

18:50-11:55

Nonstop9h 05m

£617

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sat 17/5

15:25-17:05

Nonstop9h 40m

Seattle/Tacoma Intl

Mon 26/5

13:30-11:15

1 stop13h 45m

£627

Flights are sorted by cheapest return flights first.

Deals found on 17/12

Showing 1-10 of 16 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 £845). 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 19 December 2024.

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 19 December 2024.
Read through reviews of airlines operating flights from Ireland to Seattle, such as Delta, United Airlines and Turkish Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
8,604 reviews
Check prices

Food

7.3

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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
8,604 reviews
Delta
8.0
Very Good
8,604 reviews
Check prices

Food

7.3

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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
1,349 reviews
Delta
8.0
Very Good
8,604 reviews
Check prices

Food

7.3

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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
1,505 reviews
Delta
8.0
Very Good
8,604 reviews
Check prices

Food

7.3

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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
9,055 reviews
Delta
8.0
Very Good
8,604 reviews
Check prices

Food

7.3

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

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

Turkish Airlines
7.3
Good
3,901 reviews
Delta
8.0
Very Good
8,604 reviews
Check prices

Food

7.3

Crew

8.6

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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 57 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 £329. However, be on the lookout for offers from Delta and United Airlines, 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 (68%), Aer Lingus (68%), British Airways( 68%).

  • What are the cheapest flights from Ireland to Seattle?

    The cheapest flight price from Ireland to Seattle is £549. On average you can expect to pay £652. The most popular route, (Dublin - Seattle/Tacoma Intl), can usually be booked for £412.

  • 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 £845). 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 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 19 December 2024.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£361Average£643FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IcelandairCheapest£366Average£538FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£488Average£696FlexibilityNo cancel feeOn-time70%
Search British Airways 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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