Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Dublin to Seattle from £272

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 29/4. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SEA
30 Mar — 6 Apr1
1 adult

Cheapflights Tip: The best prices from Dublin to Seattle/Tacoma Intl are usually found in February or November, booked 62 days in advance, depart on a Wednesday or Friday and return on a Wednesday

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 25 March 2025.

Round-trip from

£288

One-way from

£272

Popular in

July

Cheapest in

February

Average price

£537

Good round-trip deal

£512 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 22/5-31/5
  • 2 total stops
  • 42h 55m total
  • Dublin to Seattle
Search Deals
WestJet
  • WestJet
  • 29/4
  • 2 total stops
  • 29h 25m total
  • Dublin to Seattle
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£122 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
Search Deals
Price to beat on a round-trip flight from Dublin to Seattle/Tacoma Intl.
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 25 March 2025.

Thu 22/519:05DUB - SEA
1 stop26h 45mScandinavian Airlines
Sat 31/516:00SEA - DUB
1 stop16h 10mScandinavian Airlines
Deal found 25/3£288
Fri 9/512:15DUB - SEA
1 stop16h 25mIcelandair
Fri 30/515:45SEA - DUB
1 stop13h 30mIcelandair
Deal found 24/3£461
Mon 31/305:55DUB - SEA
1 stop18h 05mDelta
Wed 16/413:30SEA - DUB
1 stop17h 30mDelta
Deal found 24/3£503
Sun 6/420:45DUB - SEA
1 stop23h 00mKLM
Sun 13/413:55SEA - DUB
1 stop18h 45mKLM
Deal found 24/3£513
Thu 22/515:20DUB - SEA
Nonstop9h 39mAer Lingus
Sat 31/518:45SEA - DUB
Nonstop9h 00mAer Lingus
Deal found 25/3£520
Sun 13/420:25DUB - SEA
1 stop23h 10mBritish Airways
Mon 21/413:30SEA - DUB
1 stop12h 10mBritish Airways
Deal found 25/3£543
Thu 17/412:45DUB - SEA
1 stop13h 35mAmerican Airlines
Sun 27/423:59SEA - DUB
2 stops22h 31mAmerican Airlines
Deal found 24/3£562
Sat 19/410:40DUB - SEA
1 stop20h 05mJetBlue
Fri 25/423:39SEA - DUB
1 stop24h 41mJetBlue
Deal found 24/3£571
Thu 22/509:45DUB - SEA
3 stops32h 47mMultiple Airlines
Sat 31/505:40SEA - DUB
3 stops20h 20mMultiple Airlines
Deal found 25/3£597
Thu 22/509:45DUB - SEA
3 stops29h 52mWestJet
Sat 31/507:05SEA - DUB
2 stops18h 55mWestJet
Deal found 24/3£603
Thu 17/409:50DUB - SEA
1 stop19h 51mUnited Airlines
Fri 25/405:15SEA - DUB
2 stops21h 55mUnited Airlines
Deal found 24/3£626

Cheapflights Fare Finder

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 25 March 2025.
Use the filters below to find and compare flights from Dublin to Seattle that are best for you.

Fly from

Dublin

Fly to

Seattle

Route

Depart

Return

Price

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 22/5

19:05-13:50

1 stop26h 45m

Seattle/Tacoma Intl

Sat 31/5

16:00-16:10

1 stop16h 10m

£288

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 9/5

12:15-20:40

1 stop16h 25m

Seattle/Tacoma Intl

Fri 30/5

15:45-13:15

1 stop13h 30m

£461

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 13/4

05:55-11:45

1 stop13h 50m

Seattle/Tacoma Intl

Sun 20/4

06:20-10:25

2 stops20h 05m

£512

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 6/4

20:45-11:45

1 stop23h 00m

Seattle/Tacoma Intl

Sun 13/4

13:55-16:40

1 stop18h 45m

£513

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 22/5

15:20-16:59

Nonstop9h 39m

Seattle/Tacoma Intl

Sat 31/5

18:45-11:45

Nonstop9h 00m

£520

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 13/4

20:25-11:35

1 stop23h 10m

Seattle/Tacoma Intl

Mon 21/4

13:30-09:40

1 stop12h 10m

£543

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 17/4

12:45-18:20

1 stop13h 35m

Seattle/Tacoma Intl

Sun 27/4

23:59-06:30

2 stops22h 31m

£562

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sat 19/4

10:40-22:45

1 stop20h 05m

Seattle/Tacoma Intl

Fri 25/4

23:39-08:20

1 stop24h 41m

£571

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 22/5

09:45-10:32

3 stops32h 47m

Seattle/Tacoma Intl

Sat 31/5

05:40-10:00

3 stops20h 20m

£597

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 22/5

09:45-07:37

3 stops29h 52m

Seattle/Tacoma Intl

Sat 31/5

07:05-10:00

2 stops18h 55m

£603

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 18 results
1
2

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.

Cheapflights Insights

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

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 21 March 2025.

Booking 62 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 25 March 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 17% 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 25 March 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair 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
7,890 reviews
Check prices

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very Good
7,890 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,318 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,266 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,605 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
JetBlue
7.3
Good
2,923 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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 70 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, Scandinavian Airlines (£288), Icelandair (£461), and Delta (£512) offers the cheapest pricing from Dublin to Seattle. You may be able to fly from Dublin to Seattle for 50% 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 £272. Icelandair flights start at £422 while deals on Finnair start at £643 one-way.

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

    Consider American Airlines (82%), Aer Lingus (82%) or British Airways (82%) 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 £1,095, our data indicates the cheapest price to be £503. The most popular route (Dublin - Seattle/Tacoma Intl), is priced around £521.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£362Average£630FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£383Average£509FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£421Average£634FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus 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!

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.