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$313+ Cheap flights from Seattle (SEA) to Ireland

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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DUB
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Seattle to Ireland

Keep the following information in mind while searching for Seattle to Ireland flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$523
(Gotogate)

One-way from

$313
(Cheapflightsfares)

Popular in

June

Cheapest in

January

Average price

$517

Good round-trip deal

$741 or less

Good one-way deal

$499 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Dublin flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Dublin flights.
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From Seattle/Tacoma Intl to Ireland
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One-way flight from Seattle/Tacoma Intl to Ireland
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Highest demand for flights based on searches. 23% potential increase in price ($203 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Ireland.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Ireland.
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Find flight deals from Seattle to Ireland

Cheapest flights from Seattle to Ireland
Explore the most affordable flight options available from Seattle to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Mytrip deal was found by Cheapflights users on 2/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/15:45 amSEA - DUB
2 stops18h 30mAir Canada
Tue 4/89:50 amDUB - SEA
1 stop19h 36mAir Canada
Deal found 2/19$516
This FlightHub deal was found by Cheapflights users on 2/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/14:20 pmSEA - DUB
1 stop35h 30mScandinavian Airlines
Tue 10/1412:40 pmDUB - SEA
1 stop33h 20mScandinavian Airlines
Deal found 2/19$518
This oojo deal was found by Cheapflights users on 2/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/153:45 pmSEA - DUB
1 stop11h 20mIcelandair
Thu 4/242:15 pmDUB - SEA
1 stop14h 25mIcelandair
Deal found 2/19$530
This United Airlines deal was found by Cheapflights users on 2/18. 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 3/55:02 amSEA - DUB
2 stops21h 03mUnited Airlines
Wed 3/198:00 amDUB - SEA
2 stops38h 54mUnited Airlines
Deal found 2/18$534
This Aunt Betty deal was found by Cheapflights users on 2/19. 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 Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/234:10 pmSEA - DUB
1 stop18h 05mMultiple Airlines
Tue 4/89:50 amDUB - SEA
1 stop19h 36mMultiple Airlines
Deal found 2/19$536
This KLM deal was found by Cheapflights users on 2/19. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/56:15 amSEA - DUB
1 stop19h 30mKLM
Tue 3/115:25 pmDUB - SEA
1 stop26h 15mKLM
Deal found 2/19$551
This Delta deal was found by Cheapflights users on 2/19. 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.
Sun 3/2310:55 pmSEA - DUB
2 stops26h 30mDelta
Tue 4/85:55 amDUB - SEA
2 stops21h 04mDelta
Deal found 2/19$562
This Gotogate deal was found by Cheapflights users on 2/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/239:00 pmSEA - DUB
Nonstop9h 10mAer Lingus
Tue 4/83:20 pmDUB - SEA
Nonstop9h 39mAer Lingus
Deal found 2/20$580
This Air France deal was found by Cheapflights users on 2/19. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/197:30 amSEA - DUB
1 stop17h 55mAir France
Wed 4/21:15 pmDUB - SEA
1 stop17h 10mAir France
Deal found 2/19$591
This Lufthansa deal was found by Cheapflights users on 2/18. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/73:10 pmSEA - DUB
1 stop18h 05mLufthansa
Wed 3/198:00 amDUB - SEA
2 stops41h 25mLufthansa
Deal found 2/18$608
This British Airways deal was found by Cheapflights users on 2/19. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/86:50 pmSEA - DUB
1 stop12h 10mBritish Airways
Fri 3/148:35 pmDUB - SEA
1 stop22h 45mBritish Airways
Deal found 2/19$625
This American Airlines deal was found by Cheapflights users on 2/20. 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 3/101:25 pmSEA - SNN
2 stops20h 20mAmerican Airlines
Mon 3/177:45 amSNN - SEA
2 stops22h 22mAmerican Airlines
Deal found 2/20$633

Find flights from Seattle to Ireland within your budget

Customize your flight search to find flights from Seattle to Ireland 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 February 20, 2025.

Fly from

Seattle

Fly to

Ireland

Route

Depart

Return

Price

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 4/1

5:45 am-8:15 am

2 stops18h 30m

Dublin

Tue 4/8

9:50 am-9:26 pm

1 stop19h 36m

$516

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 4/15

3:45 pm-11:05 am

1 stop11h 20m

Dublin

Thu 4/24

2:15 pm-8:40 pm

1 stop14h 25m

$530

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 3/5

5:02 am-10:05 am

2 stops21h 03m

Dublin

Wed 3/19

8:00 am-3:54 pm

2 stops38h 54m

$534

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 3/23

4:10 pm-5:15 pm

1 stop18h 05m

Dublin

Tue 4/8

9:50 am-9:26 pm

1 stop19h 36m

$536

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 3/5

6:15 am-9:45 am

1 stop19h 30m

Dublin

Tue 3/11

5:25 pm-12:40 pm

1 stop26h 15m

$551

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 3/23

10:55 pm-8:25 am

2 stops26h 30m

Dublin

Tue 4/8

5:55 am-6:59 pm

2 stops21h 04m

$562

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 3/23

9:00 pm-1:10 pm

Nonstop9h 10m

Dublin

Tue 4/8

3:20 pm-4:59 pm

Nonstop9h 39m

$580

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 3/19

7:30 am-8:25 am

1 stop17h 55m

Dublin

Wed 4/2

1:15 pm-10:25 pm

1 stop17h 10m

$591

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 3/7

3:10 pm-5:15 pm

1 stop18h 05m

Dublin

Wed 3/19

8:00 am-6:25 pm

2 stops41h 25m

$608

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 3/7

1:45 pm-12:00 pm

1 stop14h 15m

Dublin

Thu 3/13

10:30 am-5:55 pm

1 stop14h 25m

$618

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 44 results
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Best time to book a flight from Seattle to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from Seattle 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 Seattle to Ireland

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

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

Currently, November is the cheapest month in which you can book a flight from Seattle to Ireland (average of $509). Flying from Seattle to Ireland in June is currently the most expensive (average of $1,016). 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 SEA to IE?

Find hourly flight availability from Seattle to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

A simple way to save on the total cost of your ticket is to fly from Seattle to Ireland at noon. If you’re flexible enough to do this you can expect to save up to 31% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Seattle to Ireland?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Ireland. Price data was last updated on March 17, 2024.

Travelers seeking maximum savings on their Seattle to Ireland flight should consider departing on Thursday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Ireland by month

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

In terms of precipitation, rainfall in Ireland ranges from 1.9 - 3.1 inches per month. October is typically the wettest month, when rainfall can reach 3.1 in. February is typically the driest time to visit Ireland when rainfall is around 1.9 in.

Temperature in Ireland by month

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

If weather is an important factor for your trip to Ireland, 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 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Ireland

Get insights into the airlines that provide service to Ireland. 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 Ireland. Reviews last updated February 20, 2025.
Read reviews from past customers who have flown Delta, KLM and Air France from Seattle to Ireland. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Comfort

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,220 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Comfort

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Comfort

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,449 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Comfort

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,766 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Comfort

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

JetBlue
7.4
Good
3,070 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Comfort

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Ireland. 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 from for flights from Seattle to Ireland?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl (SEA) is the airport most travelers will use when flying to Ireland from Seattle.

  • How popular is this Seattle to Ireland flight route?

    This flight path from Seattle/Tacoma Intl to Ireland was viewed by 18 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 Seattle to Ireland one-way?

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at $313. TAP AIR PORTUGAL flights start at $384 while deals on United Airlines start at $439 one-way.

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

    The most popular flight routes from Seattle to Ireland are Seattle/Tacoma Intl - Dublin, Seattle/Tacoma Intl - Shannon and Seattle/Tacoma Intl - Cork.

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

    No one likes to see their flight delayed. When booking a flight from Seattle to Ireland consider choosing American Airlines (60%), Aer Lingus (60%) or British Airways (60%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seattle to Ireland?

    Looking for the cheapest flight from Seattle to Ireland? While on average our users pay $737, our data indicates the cheapest price to be $411. The most popular route (Seattle/Tacoma Intl - Dublin), is priced around $508.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Seattle to Ireland (average of $509). Flying from Seattle to Ireland in June is currently the most expensive (average of $1,016). 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.

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Alternative routes for Seattle to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Seattle to Ireland

Discover the top 10 airlines that operate flights from Seattle to Ireland. 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$381Average$615FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$434Average$768FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$441Average$770FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$455Average$765FlexibilityNo cancel feeOn-time71%
KLMCheapest$474Average$680FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$480Average$793FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$501Average$727FlexibilityNo cancel feeOn-time76%
DeltaCheapest$505Average$799FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$509Average$749FlexibilityNo cancel feeOn-time67%
Air FranceCheapest$532Average$764FlexibilityNo cancel feeOn-time77%
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