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Cheap flights from Seattle to Ireland from C$ 464

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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DUB
26 Jan — 2 Feb1
1 adult

Cheap flight deals from Seattle to Ireland

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Ireland (IE0). 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 21 January 2025.

Round-trip from

C$ 714

One-way from

C$ 464
Aer Lingus
  • Aer Lingus
  • 10/3-26/3
  • Nonstop
  • 18h 55m total
  • Seattle to Ireland
Search Deals
6/3
  • 6/3
  • 3 total stops
  • 38h 45m total
  • Seattle to Ireland
Search Deals

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 21 January 2025.

Mon 10/39:00 p.m.SEA - DUB
Nonstop9h 10mAer Lingus
Wed 26/34:30 p.m.DUB - SEA
Nonstop9h 45mAer Lingus
Deal found 21/1C$ 714
Tue 18/111:35 p.m.SEA - DUB
1 stop12h 05mMultiple Airlines
Tue 25/112:05 p.m.DUB - SEA
1 stop15h 44mMultiple Airlines
Deal found 20/1C$ 726
Mon 17/33:35 p.m.SEA - DUB
1 stop11h 40mIcelandair
Thu 27/311:30 a.m.DUB - SEA
1 stop13h 30mIcelandair
Deal found 20/1C$ 740
Sun 16/37:50 p.m.SEA - DUB
1 stop14h 00mBritish Airways
Wed 26/310:25 a.m.DUB - SEA
1 stop14h 30mBritish Airways
Deal found 21/1C$ 743
Mon 17/37:30 a.m.SEA - DUB
1 stop17h 55mDelta
Tue 25/311:30 a.m.DUB - SEA
1 stop17h 01mDelta
Deal found 19/1C$ 749
Wed 5/38:10 a.m.SEA - DUB
1 stop17h 55mUnited Airlines
Wed 12/38:00 a.m.DUB - SEA
2 stops43h 24mUnited Airlines
Deal found 20/1C$ 754
Mon 17/310:35 a.m.SEA - DUB
2 stops36h 35mLufthansa
Wed 26/35:00 a.m.DUB - SEA
1 stop15h 10mLufthansa
Deal found 20/1C$ 796
Tue 1/412:55 p.m.SEA - DUB
2 stops20h 55mSWISS
Mon 8/91:00 p.m.DUB - SEA
2 stops40h 29mSWISS
Deal found 21/1C$ 881
Thu 20/36:05 a.m.SEA - DUB
1 stop17h 05mAir Canada
Sat 29/38:00 a.m.DUB - SEA
1 stop20h 30mAir Canada
Deal found 21/1C$ 917

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 629,999 searches. Data last updated 21 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 10/3

9:00 p.m.-1:10 p.m.

Nonstop9h 10m

Dublin

Wed 26/3

4:30 p.m.-7:15 p.m.

Nonstop9h 45m

C$ 714

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 17/2

11:05 p.m.-8:25 a.m.

2 stops49h 20m

Dublin

Wed 5/3

10:45 a.m.-10:45 a.m.

1 stop32h 00m

C$ 737

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 17/3

3:35 p.m.-10:15 a.m.

1 stop11h 40m

Dublin

Thu 27/3

11:30 a.m.-6:00 p.m.

1 stop13h 30m

C$ 740

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 16/3

7:50 p.m.-4:50 p.m.

1 stop14h 00m

Dublin

Wed 26/3

10:25 a.m.-5:55 p.m.

1 stop14h 30m

C$ 743

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 5/3

8:10 a.m.-10:05 a.m.

1 stop17h 55m

Dublin

Wed 12/3

8:00 a.m.-8:24 p.m.

2 stops43h 24m

C$ 754

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 1/2

11:11 p.m.-7:00 a.m.

1 stop23h 49m

Dublin

Tue 8/4

9:50 a.m.-9:26 p.m.

1 stop19h 36m

C$ 793

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 17/3

10:35 a.m.-6:10 a.m.

2 stops36h 35m

Dublin

Wed 26/3

5:00 a.m.-1:10 p.m.

1 stop15h 10m

C$ 796

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 1/4

12:55 p.m.-5:50 p.m.

2 stops20h 55m

Dublin

Mon 8/9

1:00 p.m.-9:29 p.m.

2 stops40h 29m

C$ 881

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 20/3

6:05 a.m.-6:10 a.m.

1 stop17h 05m

Dublin

Sat 29/3

8:00 a.m.-9:30 p.m.

1 stop20h 30m

C$ 917

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 6/3

11:30 a.m.-10:15 a.m.

3 stops38h 45m

C$ 464

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/1

Showing 1-10 of 17 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, January is the cheapest month in which you can book a flight from Seattle to Ireland (average of C$ 458). Flying from Seattle to Ireland in December is currently the most expensive (average of C$ 760). 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 21 January 2025.

When flying from Seattle to Ireland, 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 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 49.0 - 79.0 mm per month. October is typically the wettest month, when rainfall can reach 79.0 mm. February is typically the driest time to visit Ireland when rainfall is around 49.0 mm.

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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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 21 January 2025.
See what other customers who have flown with SWISS and United Airlines from Seattle to Ireland have to say. 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
8,521 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 10

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

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

Food

7.3

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 10

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

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

Food

7.3

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 10

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

SWISS
7.5
Good
1,600 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 10

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

United Airlines
7.4
Good
8,982 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 10

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

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 10

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?

    If you book a flight to Ireland from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 18.4 km from the centre of Seattle.

  • How popular is this Seattle to Ireland flight route?

    This flight path from Seattle/Tacoma Intl to Ireland was viewed by 28 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?

    The cheapest airlines for a one-way flight from Seattle to Ireland are Icelandair (C$ 518), United Airlines (C$ 632), and Delta (C$ 635).

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

    Before booking your flight to Ireland from Seattle, check out the most reliable airlines to get you to your destination on time: American Airlines (78%), Aer Lingus (78%), British Airways( 78%).

  • What are the cheapest flights from Seattle to Ireland?

    Looking for the cheapest flight from Seattle to Ireland? While on average our users pay C$ 653, our data indicates the cheapest price to be C$ 650. The most popular route (Seattle/Tacoma Intl - Dublin), is priced around C$ 826.

  • 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, January is the cheapest month in which you can book a flight from Seattle to Ireland (average of C$ 458). Flying from Seattle to Ireland in December is currently the most expensive (average of C$ 760). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Seattle to Ireland

Discover the top 5 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 629,999 searches. Data last updated 21 January 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 403AverageC$ 787FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapestC$ 593AverageC$ 1,030FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IcelandairCheapestC$ 602AverageC$ 809FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
United AirlinesCheapestC$ 633AverageC$ 705FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 705AverageC$ 995FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

When you search for this flight from Seattle to Ireland, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from Seattle to Ireland by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes! Cheapflights helps users easily find flights from Seattle to Ireland with no change fees.

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

Yes! Start tracking prices for Seattle to Ireland flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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