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Cheap flights from Seattle to Dublin from C$ 493

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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DUB
31 Mar — 7 Apr1
1 adult

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Dublin are usually found in January or November, booked 26 days in advance, depart on a Sunday or Monday and return on a Monday

Cheap flight deals from Seattle to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Dublin (DUB). 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 26 March 2025.

Round-trip from

C$ 779

One-way from

C$ 493

Popular in

June

Cheapest in

January

Average price

C$ 857

Good round-trip deal

C$ 987 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 1/6-8/6
  • 3 total stops
  • 51h 45m total
  • Seattle to Dublin
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JetBlue
  • JetBlue
  • 11/5
  • 1 total stop
  • 13h 22m total
  • Seattle to Dublin
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Highest demand for flights based on searches. 23% potential increase in price (C$ 423 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease (C$ 65 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Dublin.
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Find flight deals from Seattle to Dublin

Cheapest flights from Seattle to Dublin
Explore the most affordable flight options available from Seattle to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 March 2025.

Wed 12/117:12 a.m.SEA - DUB
1 stop15h 48mUnited Airlines
Wed 26/119:00 a.m.DUB - SEA
2 stops34h 40mUnited Airlines
Deal found 24/3C$ 778
Sun 1/64:00 p.m.SEA - DUB
1 stop18h 15mScandinavian Airlines
Sun 8/612:20 p.m.DUB - SEA
2 stops33h 30mScandinavian Airlines
Deal found 25/3C$ 779
Mon 24/1110:26 p.m.SEA - DUB
1 stop24h 34mMultiple Airlines
Wed 3/129:00 a.m.DUB - SEA
2 stops32h 50mMultiple Airlines
Deal found 25/3C$ 781
Thu 8/511:38 a.m.SEA - DUB
1 stop13h 22mJetBlue
Thu 15/511:30 a.m.DUB - SEA
1 stop17h 24mJetBlue
Deal found 23/3C$ 895
Mon 17/1112:40 a.m.SEA - DUB
1 stop23h 05mDelta
Tue 25/119:45 a.m.DUB - SEA
1 stop14h 29mDelta
Deal found 24/3C$ 915
Tue 26/81:45 p.m.SEA - DUB
2 stops34h 00mLufthansa
Wed 3/99:20 a.m.DUB - SEA
1 stop11h 45mLufthansa
Deal found 24/3C$ 917
Mon 1/94:25 p.m.SEA - DUB
1 stop17h 25mSWISS
Mon 15/96:40 p.m.DUB - SEA
2 stops31h 56mSWISS
Deal found 24/3C$ 970
Wed 22/106:45 p.m.SEA - DUB
Nonstop9h 00mAer Lingus
Tue 4/113:20 p.m.DUB - SEA
1 stop15h 55mAer Lingus
Deal found 25/3C$ 1,027

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Dublin 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 26 March 2025.
Use the filters below to find and compare flights from Seattle to Dublin that are best for you.

Fly from

Seattle

Fly to

Dublin

Route

Depart

Return

Price

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 1/6

4:00 p.m.-6:15 p.m.

1 stop18h 15m

Dublin

Sun 8/6

12:20 p.m.-1:50 p.m.

2 stops33h 30m

C$ 779

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 8/5

11:38 a.m.-9:00 a.m.

1 stop13h 22m

Dublin

Thu 15/5

11:30 a.m.-8:54 p.m.

1 stop17h 24m

C$ 895

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 13/8

7:20 a.m.-7:45 a.m.

1 stop16h 25m

Dublin

Tue 26/8

9:20 a.m.-1:20 p.m.

2 stops36h 00m

C$ 898

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 26/8

10:00 a.m.-7:45 a.m.

1 stop13h 45m

Dublin

Fri 5/9

9:20 a.m.-6:36 p.m.

1 stop17h 16m

C$ 917

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 22/4

5:05 p.m.-7:20 a.m.

2 stops30h 15m

Dublin

Thu 22/5

9:50 a.m.-10:51 a.m.

1 stop33h 01m

C$ 927

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 1/9

4:25 p.m.-5:50 p.m.

1 stop17h 25m

Dublin

Mon 15/9

6:40 p.m.-6:36 p.m.

2 stops31h 56m

C$ 970

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 25/5

7:25 a.m.-10:45 a.m.

1 stop19h 20m

Dublin

Mon 2/6

11:10 a.m.-11:40 a.m.

1 stop32h 30m

C$ 1,156

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 11/5

11:38 a.m.-9:00 a.m.

1 stop13h 22m

C$ 493

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 8/5

8:22 p.m.-10:20 a.m.

3 stops53h 58m

C$ 606

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 26/5

9:45 p.m.-10:00 a.m.

2 stops28h 15m

C$ 629

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/3

Showing 1-10 of 17 results
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Best time to book a flight from Seattle to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin 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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Dublin

How far ahead should I book a flight from Seattle to Dublin?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Dublin. Price data was last updated on 21 March 2025.

The best time to book flights from Seattle to Dublin is 26 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Seattle to Dublin (average of C$ 458). Flying from Seattle to Dublin 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 DUB?

Find hourly flight availability from Seattle to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 March 2025.

A simple way to save on the total cost of your ticket is to fly from Seattle to Dublin in the morning. If you’re flexible enough to do this you can expect to save up to 33% on your trip compared to booking a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to Dublin. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Seattle to Dublin flight should consider departing on Tuesday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Dublin by month

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

In terms of precipitation, rainfall in Dublin 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 Dublin when rainfall is around 49.0 mm.

Temperature in Dublin by month

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

If weather is an important factor for your trip to Dublin, 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 Dublin

Get insights into the airlines that provide service to Dublin. 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 Dublin. Reviews last updated 26 March 2025.
To help decide which airline to fly from Seattle to Dublin, see what other customers have to say about Delta, Finnair and SWISS. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,891 reviews
Check prices

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

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
7,891 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

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.
Finnair
7.6
Good
1,266 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

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.
SWISS
7.5
Good
1,569 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

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
8,608 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

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
7.3
Good
2,922 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

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 Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Seattle to Dublin flight route?

    Within the past month, 31 users have taken a look at flights from Seattle/Tacoma Intl to Dublin.

  • What are the cheapest airlines flying from Seattle to Dublin round-trip?

    Flying on Scandinavian Airlines is currently your cheapest option to Dublin, with prices starting at C$ 779. Additional round-trip tickets that might be worth considering are offered by JetBlue and United Airlines, with the lowest prices starting at C$ 895 and C$ 898, respectively. Scandinavian Airlines is priced at 19% lower than the current average price of a flight leaving 3 months from now.

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

    One-way options have recently been found by users for as low as C$ 493 on JetBlue. Other airlines that offer cheap prices include WestJet from C$ 629 and Lufthansa from C$ 661 one-way.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to Dublin on time: American Airlines (81%), Aer Lingus (81%), British Airways (81%).

  • What are the cheapest flights from Seattle to Dublin?

    Looking at all options, your cheapest flight can be booked for C$ 948. While the most popular route (Seattle/Tacoma Intl - Dublin) can be booked for C$ 1,342 on average our data indicates C$ 1,287 when flying from Seattle to Dublin.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Seattle to Dublin (average of C$ 458). Flying from Seattle to Dublin 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 3 airlines flying from Seattle to Dublin

Discover the top 3 airlines that operate flights from Seattle to Dublin. 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 26 March 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 400AverageC$ 925FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapestC$ 589AverageC$ 960FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IcelandairCheapestC$ 598AverageC$ 835FlexibilityNo cancel feeOn-time76%
Search Icelandair 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 Dublin?

When you search for this flight from Seattle to Dublin, 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 Dublin?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Dublin from Seattle.

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

Certainly. Search results for flights to Dublin from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on Seattle to Dublin flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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