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$335+ Cheap flights from Ireland to Seattle (SEA)

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SEA
Dec 26 — Jan 21
Thu 12/26
Thu 1/2
1 adult, Economy
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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 December 21, 2024.

Round-trip from

$496
(Kiwi.com)

One-way from

$335
(Kiwi.com)
From Ireland to Seattle/Tacoma Intl
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One-way 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 December 21, 2024.

This lol.travel deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/238:55 amDUB - SEA
2 stops40h 49mBritish Airways
Tue 1/76:50 pmSEA - DUB
1 stop14h 55mBritish Airways
Deal found 12/19$839
This American Airlines deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/234:30 pmDUB - SEA
Nonstop9h 45mAmerican Airlines
Tue 1/76:50 pmSEA - DUB
1 stop14h 10mAmerican Airlines
Deal found 12/20$896
This KLM deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/211:25 pmDUB - SEA
1 stop30h 27mMultiple Airlines
Fri 12/2712:34 pmSEA - DUB
1 stop19h 06mMultiple Airlines
Deal found 12/21$912
This United Airlines deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/239:00 amDUB - SEA
1 stop20h 20mUnited Airlines
Tue 1/77:08 amSEA - DUB
1 stop15h 52mUnited Airlines
Deal found 12/20$921
This American Airlines deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/237:45 amSNN - SEA
2 stops40h 56mAmerican Airlines
Fri 12/271:35 pmSEA - SNN
2 stops56h 40mAmerican Airlines
Deal found 12/20$932
This Booking.com deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/236:40 amDUB - SEA
2 stops19h 45mAir Canada
Tue 1/75:45 amSEA - DUB
2 stops23h 50mAir Canada
Deal found 12/19$978
This Flighttix deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/237:45 amSNN - SEA
2 stops23h 54mBritish Airways
Sun 12/2912:31 amSEA - SNN
2 stops21h 44mBritish Airways
Deal found 12/20$990
This Delta deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/295:55 amDUB - SEA
2 stops16h 07mDelta
Mon 1/1312:30 pmSEA - DUB
1 stop19h 10mDelta
Deal found 12/20$1,020
This Flighttix deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/238:05 pmSNN - SEA
1 stop28h 50mMultiple Airlines
Mon 12/309:10 pmSEA - SNN
1 stop25h 05mMultiple Airlines
Deal found 12/20$1,249
This SmartFares deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/294:30 pmDUB - SEA
Nonstop9h 45mAer Lingus
Mon 1/136:50 pmSEA - DUB
1 stop30h 20mAer Lingus
Deal found 12/20$1,394
This Iberia deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/237:25 amDUB - SEA
2 stops21h 53mIberia
Tue 1/77:55 amSEA - DUB
2 stops18h 20mIberia
Deal found 12/20$2,249

Find flights from Ireland to Seattle within your budget

Customize 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 2,558,603 searches. Data last updated December 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 2/3

4:40 pm-10:36 am

1 stop25h 56m

Seattle/Tacoma Intl

Mon 2/10

9:29 pm-1:10 pm

1 stop31h 41m

$496

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Tue 2/4

11:30 am-5:00 pm

1 stop13h 30m

Seattle/Tacoma Intl

Tue 2/11

2:35 pm-10:15 am

1 stop11h 40m

$518

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 2/14

12:30 pm-11:08 pm

2 stops42h 38m

Seattle/Tacoma Intl

Fri 2/28

1:35 pm-9:20 am

2 stops35h 45m

$543

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 2/3

8:30 pm-11:20 am

1 stop22h 50m

Seattle/Tacoma Intl

Mon 2/10

6:50 pm-5:05 pm

1 stop14h 15m

$594

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sat 5/17

11:50 am-9:29 pm

1 stop17h 39m

Seattle/Tacoma Intl

Mon 5/26

10:38 am-9:00 am

1 stop14h 22m

$606

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 2/3

5:55 am-8:45 pm

2 stops22h 50m

Seattle/Tacoma Intl

Mon 2/10

12:40 pm-3:40 pm

1 stop19h 00m

$632

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 3/26

1:25 pm-12:40 pm

1 stop30h 15m

Seattle/Tacoma Intl

Tue 4/8

7:20 am-9:15 am

1 stop17h 55m

$641

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 3/10

4:30 pm-7:15 pm

Nonstop9h 45m

Seattle/Tacoma Intl

Sun 3/23

9:00 pm-1:10 pm

Nonstop9h 10m

$651

CorkSeattle

ORK - SEA

ORKSEA

Cork

Fri 4/11

6:00 am-11:45 am

1 stop13h 45m

Seattle/Tacoma Intl

Sat 4/19

2:10 pm-11:30 pm

1 stop25h 20m

$705

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 3/10

8:00 am-2:30 pm

2 stops37h 30m

Seattle/Tacoma Intl

Sun 3/23

4:10 pm-5:15 pm

1 stop18h 05m

$725

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 31 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 round-trip 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 $238). Flying from Ireland to Seattle in July is currently the most expensive (average of $411). 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 December 21, 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 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 December 21, 2024.
Read reviews from past customers who have flown Air Canada, American Airlines and Delta from Ireland to Seattle. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very good
1,330 reviews

Overall

8.1

Crew

8.6

Entertainment

8.0

Food

7.7

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

Food was not good. It was like few days old.

Singapore Airlines
8.1
Very good
1,330 reviews
Singapore Airlines
8.1
Very good
1,330 reviews

Overall

8.1

Crew

8.6

Entertainment

8.0

Food

7.7

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

Food was not good. It was like few days old.

Delta
8.0
Very good
8,597 reviews
Singapore Airlines
8.1
Very good
1,330 reviews

Overall

8.1

Crew

8.6

Entertainment

8.0

Food

7.7

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

Food was not good. It was like few days old.

KLM
7.8
Good
1,344 reviews
Singapore Airlines
8.1
Very good
1,330 reviews

Overall

8.1

Crew

8.6

Entertainment

8.0

Food

7.7

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

Food was not good. It was like few days old.

SWISS
7.6
Good
1,604 reviews
Singapore Airlines
8.1
Very good
1,330 reviews

Overall

8.1

Crew

8.6

Entertainment

8.0

Food

7.7

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

Food was not good. It was like few days old.

United Airlines
7.4
Good
9,035 reviews
Singapore Airlines
8.1
Very good
1,330 reviews

Overall

8.1

Crew

8.6

Entertainment

8.0

Food

7.7

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

Food was not good. It was like few days old.

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?

    If you book a flight to Seattle from Ireland, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle.

  • How popular is this Ireland to Seattle flight route?

    This flight path from Ireland to Seattle/Tacoma Intl was viewed by 4 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    One-way options have recently been found by users for as low as $637 on British Airways. Other airlines that offer cheap prices include TAP AIR PORTUGAL from $751 and Iberia from $780 one-way.

  • What are the most popular routes from Ireland to Seattle?

    The most popular route from Ireland to Seattle is Dublin - Seattle/Tacoma Intl. You may also consider Cork - Seattle/Tacoma Intl or Shannon - Seattle/Tacoma Intl.

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

    The top 3 most reliable airlines when flying from Ireland to Seattle are American Airlines (68%), Aer Lingus (68%) and British Airways (68%).

  • What are the cheapest flights from Ireland to Seattle?

    On average you can expect to pay $1,356 for a flight from Ireland to Seattle. The cheapest flight overall is $521 while the most popular route, (Dublin - Seattle/Tacoma Intl) is currently priced at $510.

  • 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 vacation 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 $238). Flying from Ireland to Seattle in July is currently the most expensive (average of $411). 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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Edinburgh to Seattle flights

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 2,558,603 searches. Data last updated December 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$496Average$874FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$556Average$752FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$640Average$787FlexibilityNo cancel feeOn-time71%
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