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Cheap flights from Dublin to Seattle from £310

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SEA
26 Jan — 2 Feb1
1 adult

The best prices from Dublin to Seattle/Tacoma Intl are usually found in November or April, booked 59 days in advance, depart on a Saturday or Wednesday and return on a Monday

Cheap flight deals from Dublin to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) 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 21 January 2025.

Round-trip from

£310

Popular in

July

Cheapest in

November

Average price

£599
Icelandair
  • Icelandair
  • 7/5-20/5
  • 2 total stops
  • 24h 55m total
  • Dublin to Seattle
Search Deals
High demand for flights, 21% potential price rise
Search Deals
Best time to find cheap flights, 3% potential price drop
Search Deals
Average for round-trip flights in January 2025
Search Deals

Find flight deals from Dublin to Seattle

Cheapest flights from Dublin to Seattle
Explore the most affordable flight options available from Dublin to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 January 2025.

Wed 7/512:15DUB - SEA
1 stop13h 35mIcelandair
Tue 20/515:45SEA - DUB
1 stop11h 20mIcelandair
Deal found 21/1£310
Thu 13/320:30DUB - SEA
1 stop22h 50mBritish Airways
Tue 18/319:50SEA - DUB
1 stop14h 10mBritish Airways
Deal found 20/1£350
Fri 9/509:20DUB - SEA
1 stop20h 53mUnited Airlines
Fri 30/514:55SEA - DUB
1 stop32h 50mUnited Airlines
Deal found 20/1£357
Thu 13/305:15DUB - SEA
1 stop14h 55mMultiple Airlines
Tue 18/314:50SEA - DUB
2 stops20h 00mMultiple Airlines
Deal found 20/1£358
Sun 18/510:40DUB - SEA
1 stop14h 19mLufthansa
Wed 28/508:00SEA - DUB
1 stop18h 20mLufthansa
Deal found 20/1£375
Fri 14/305:55DUB - SEA
2 stops19h 19mDelta
Sun 23/322:55SEA - DUB
1 stop26h 30mDelta
Deal found 21/1£385
Thu 8/515:20DUB - SEA
Nonstop9h 39mAmerican Airlines
Thu 22/513:30SEA - DUB
1 stop12h 45mAmerican Airlines
Deal found 20/1£484
Thu 3/712:40DUB - SEA
1 stop20h 07mFinnair
Sat 19/717:40SEA - DUB
1 stop31h 15mFinnair
Deal found 20/1£617
Thu 1/509:50DUB - SEA
2 stops17h 47mAir Canada
Mon 1/905:45SEA - DUB
2 stops18h 00mAir Canada
Deal found 20/1£638
Mon 30/606:00DUB - SEA
1 stop13h 15mAir France
Thu 10/718:30SEA - DUB
1 stop20h 10mAir France
Deal found 20/1£644
Thu 5/619:05DUB - SEA
1 stop26h 45mScandinavian Airlines
Fri 27/616:00SEA - DUB
2 stops33h 15mScandinavian Airlines
Deal found 20/1£656
Tue 15/711:30DUB - SEA
1 stop16h 57mKLM
Thu 24/714:05SEA - DUB
1 stop18h 35mKLM
Deal found 21/1£666

Find flights from Dublin to Seattle within your budget

Customise your flight search to find flights from Dublin 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 858,174 searches. Data last updated 21 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 7/5

12:15-17:50

1 stop13h 35m

Seattle/Tacoma Intl

Tue 20/5

15:45-11:05

1 stop11h 20m

£310

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 13/3

20:30-12:20

1 stop22h 50m

Seattle/Tacoma Intl

Tue 18/3

19:50-17:00

1 stop14h 10m

£350

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 9/5

09:20-22:13

1 stop20h 53m

Seattle/Tacoma Intl

Fri 30/5

14:55-07:45

1 stop32h 50m

£357

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 13/3

05:15-13:10

1 stop14h 55m

Seattle/Tacoma Intl

Tue 18/3

14:50-17:50

2 stops20h 00m

£358

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 18/5

10:40-16:59

1 stop14h 19m

Seattle/Tacoma Intl

Wed 28/5

08:00-10:20

1 stop18h 20m

£375

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 14/3

05:55-18:14

2 stops19h 19m

Seattle/Tacoma Intl

Sun 23/3

22:55-08:25

1 stop26h 30m

£385

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 8/5

15:20-16:59

Nonstop9h 39m

Seattle/Tacoma Intl

Thu 22/5

13:30-10:15

1 stop12h 45m

£484

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 3/7

12:40-00:47

1 stop20h 07m

Seattle/Tacoma Intl

Sat 19/7

17:40-08:55

1 stop31h 15m

£617

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 1/5

09:50-19:37

2 stops17h 47m

Seattle/Tacoma Intl

Mon 1/9

05:45-07:45

2 stops18h 00m

£638

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 30/6

06:00-11:15

1 stop13h 15m

Seattle/Tacoma Intl

Thu 10/7

18:30-22:40

1 stop20h 10m

£644

Flights are sorted by cheapest return flights first.

Deals found on 20/1

Showing 1-10 of 21 results
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Best time to book a flight from Dublin to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Dublin with our price prediction graph.
Estimated return 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 Dublin to Seattle

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

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

Use this chart to determine the optimal time to book a return flight from Dublin to Seattle. Price data was last updated on 17 January 2025.

Booking 58 days in advance of your planned departure date is, on average, the best time to get cheap flights from Dublin to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Dublin to Seattle (average of £622). Flying from Dublin to Seattle in July is currently the most expensive (average of £946). 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 DUB to SEA?

Find hourly flight availability from Dublin 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 21 January 2025.

When flying from Dublin to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 14% versus a flight in the afternoon.

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 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

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

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 21 January 2025.
Read reviews from past customers who have flown American Airlines, KLM and Turkish Airlines from Dublin to Seattle. 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

Comfort

8.0

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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

Comfort

8.0

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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

Comfort

8.0

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 10

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

Finnair
7.6
Good
1,285 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Comfort

8.0

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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
1,490 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Comfort

8.0

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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
8,982 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Comfort

8.0

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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 Dublin to Seattle. 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 Dublin to Seattle flight route?

    This flight path from Dublin to Seattle/Tacoma Intl was viewed by 65 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 flying from Dublin to Seattle round-trip?

    According to our current data, Icelandair (£310), British Airways (£350), and United Airlines (£357) offers the cheapest pricing from Dublin to Seattle. You may be able to fly from Dublin to Seattle for 49% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at £341. Icelandair flights start at £459 while deals on Delta start at £700 one-way.

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

    Consider American Airlines (70%), Aer Lingus (70%) or British Airways (70%) when booking your flight. These represent the most reliable airlines when flying from Dublin to Seattle.

  • What are the cheapest flights from Dublin to Seattle?

    Looking for the cheapest flight from Dublin to Seattle? While on average our users pay £668, our data indicates the cheapest price to be £399. The most popular route (Dublin - Seattle/Tacoma Intl), is priced around £653.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Dublin to Seattle (average of £622). Flying from Dublin to Seattle in July is currently the most expensive (average of £946). 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

Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Tacoma
Leavenworth
Bothell

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Top 3 airlines flying from Dublin to Seattle

Discover the top 3 airlines that operate flights from Dublin 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 858,174 searches. Data last updated 21 January 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£378Average£536FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£394Average£679FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£489Average£721FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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

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

Deals for Dublin to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights simply makes it quick and affordable to book flights from Dublin to Seattle 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 Dublin to Seattle with no change fees?

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

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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