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$331+ 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SEA
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
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 November 20, 2024.

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 November 20, 2024.

This Kiwi.com deal was found by Cheapflights users on 11/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/64:30 pmDUB - SEA
Nonstop9h 45mMultiple Airlines
Fri 12/137:00 amSEA - DUB
1 stop13h 45mMultiple Airlines
Deal found 11/19$526
This Gotogate deal was found by Cheapflights users on 11/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/511:30 amDUB - SEA
1 stop13h 30mIcelandair
Mon 12/92:35 pmSEA - DUB
1 stop11h 40mIcelandair
Deal found 11/19$628
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/105:55 amDUB - SEA
1 stop13h 57mDelta
Tue 12/176:00 amSEA - DUB
1 stop18h 25mDelta
Deal found 11/19$636
This Aer Lingus deal was found by Cheapflights users on 11/19. 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 Aer Lingus is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/164:30 pmDUB - SEA
Nonstop9h 45mAer Lingus
Fri 12/278:00 pmSEA - DUB
Nonstop9h 10mAer Lingus
Deal found 11/19$637
This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2610:55 amDUB - SEA
1 stop14h 00mAmerican Airlines
Tue 12/36:50 pmSEA - DUB
1 stop14h 10mAmerican Airlines
Deal found 11/19$659
This Iberia deal was found by Cheapflights users on 11/20. 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.
Wed 11/2710:25 amDUB - SEA
1 stop14h 30mBritish Airways
Mon 12/96:50 pmSEA - DUB
1 stop14h 15mBritish Airways
Deal found 11/20$663
This Air France deal was found by Cheapflights users on 11/20. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/278:55 amDUB - SEA
2 stops17h 20mAir France
Tue 12/106:00 amSEA - DUB
1 stop18h 25mAir France
Deal found 11/20$667
This KLM deal was found by Cheapflights users on 11/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/286:00 amORK - SEA
2 stops21h 00mKLM
Tue 12/311:45 amSEA - ORK
2 stops17h 10mKLM
Deal found 11/20$677
This Scandinavian Airlines deal was found by Cheapflights users on 11/20. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/257:10 pmDUB - SEA
2 stops35h 52mScandinavian Airlines
Sun 12/811:28 pmSEA - DUB
2 stops28h 12mScandinavian Airlines
Deal found 11/20$679
This TravelUp deal was found by Cheapflights users on 11/19. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/56:00 pmDUB - SEA
2 stops32h 25mLufthansa
Mon 12/97:00 amSEA - DUB
2 stops25h 40mLufthansa
Deal found 11/19$715
This United Airlines deal was found by Cheapflights users on 11/20. 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.
Wed 11/279:00 amDUB - SEA
1 stop20h 40mUnited Airlines
Fri 12/137:00 amSEA - DUB
2 stops19h 05mUnited Airlines
Deal found 11/20$731
This Air Canada deal was found by Cheapflights users on 11/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/279:00 amDUB - SEA
1 stop20h 40mAir Canada
Sun 12/13:05 pmSEA - DUB
2 stops56h 05mAir Canada
Deal found 11/20$734

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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 12/6

4:30 pm-6:15 pm

Nonstop9h 45m

Seattle/Tacoma Intl

Fri 12/13

7:00 am-4:45 am

1 stop13h 45m

$526

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 1/16

11:30 am-5:00 pm

1 stop13h 30m

Seattle/Tacoma Intl

Mon 1/20

2:35 pm-10:15 am

1 stop11h 40m

$529

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sat 5/17

10:15 am-10:57 pm

2 stops20h 42m

Seattle/Tacoma Intl

Wed 6/4

4:00 pm-6:15 pm

1 stop18h 15m

$585

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Tue 12/10

5:55 am-11:52 am

1 stop13h 57m

Seattle/Tacoma Intl

Tue 12/17

6:00 am-8:25 am

1 stop18h 25m

$636

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 12/16

4:30 pm-6:15 pm

Nonstop9h 45m

Seattle/Tacoma Intl

Fri 12/27

8:00 pm-1:10 pm

Nonstop9h 10m

$637

CorkSeattle

ORK - SEA

ORKSEA

Cork

Fri 4/11

6:10 am-4:05 pm

1 stop17h 55m

Seattle/Tacoma Intl

Sat 4/19

6:45 pm-3:50 pm

1 stop13h 05m

$652

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 12/13

2:05 pm-10:21 pm

1 stop16h 16m

Seattle/Tacoma Intl

Fri 12/27

6:50 pm-7:45 pm

1 stop16h 55m

$667

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 4/24

10:55 am-10:49 pm

1 stop19h 54m

Seattle/Tacoma Intl

Tue 5/13

10:38 am-8:45 am

1 stop14h 07m

$669

CorkSeattle

ORK - SEA

ORKSEA

Cork

Fri 4/11

4:35 pm-7:35 pm

2 stops35h 00m

Seattle/Tacoma Intl

Sat 4/19

6:45 pm-3:50 pm

1 stop13h 05m

$677

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 12/5

6:00 pm-6:25 pm

2 stops32h 25m

Seattle/Tacoma Intl

Mon 12/9

7:00 am-4:40 pm

2 stops25h 40m

$715

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

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 November 20, 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 November 20, 2024.
Read reviews from past customers who have flown Scandinavian Airlines, Delta and Aer Lingus from Ireland to Seattle. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
8,756 reviews
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
1,350 reviews
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 10

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

JetBlue
7.5
Good
3,394 reviews
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
1,523 reviews
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
9,171 reviews
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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?

    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 $406 on Icelandair. Other airlines that offer cheap prices include WestJet from $455 and Aer Lingus from $515 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 Shannon - Seattle/Tacoma Intl or Cork - 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 (51%), Aer Lingus (51%) and British Airways (51%).

  • What are the cheapest flights from Ireland to Seattle?

    On average you can expect to pay $691 for a flight from Ireland to Seattle. The cheapest flight overall is $527 while the most popular route, (Dublin - Seattle/Tacoma Intl) is currently priced at $526.

  • 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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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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$309Average$775FlexibilityNo cancel feeOn-time71%
Aer LingusCheapest$496Average$853FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$570Average$752FlexibilityNo cancel feeOn-time76%
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