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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SEA
31 Jul — 7 Aug1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Dublin to Seattle/Tacoma Intl are usually found in November or April, booked 58 days in advance, depart on a Wednesday or Friday and return on a Monday
Cheap flight deals from Dublin to Seattle
Enter your travel dates to find the best prices.
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Best
Direct
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One-way
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 1 July 2026.
Thu 27/809:40
DUB
-
SEA
2 stops19h 20m
Multiple Airlines
Sun 30/815:40
SEA
-
DUB
1 stop13h 35m
Multiple Airlines
Deal found 29/6£354
Sat 19/919:05
DUB
-
SEA
1 stop26h 40m
Scandinavian Airlines
Tue 29/915:55
SEA
-
DUB
1 stop18h 25m
Scandinavian Airlines
Deal found 28/6£450
Sat 26/920:00
DUB
-
SEA
2 stops25h 45m
Scandinavian Airlines
Sun 4/1015:55
SEA
-
DUB
1 stop18h 25m
Scandinavian Airlines
Deal found 29/6£455
Best flights from Dublin to Seattle
Discover carefully curated flight deals from Dublin to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 July 2026.
Sat 26/920:00
DUB
-
SEA
2 stops25h 45m
Scandinavian Airlines
Sun 4/1015:55
SEA
-
DUB
1 stop18h 25m
Scandinavian Airlines
Deal found 28/6£455
Sat 10/1014:15
DUB
-
SEA
1 stop14h 25m
Icelandair
Fri 23/1015:40
SEA
-
DUB
1 stop13h 35m
Icelandair
Deal found 28/6£495
Wed 9/1205:45
DUB
-
SEA
2 stops22h 42m
Delta
Wed 16/1206:05
SEA
-
DUB
1 stop17h 50m
Delta
Deal found 28/6£515
Tue 22/914:15
DUB
-
SEA
1 stop11h 40m
Icelandair
Wed 7/1015:40
SEA
-
DUB
1 stop13h 35m
Icelandair
Deal found 29/6£500
Thu 10/919:05
DUB
-
SEA
1 stop26h 40m
Scandinavian Airlines
Thu 1/1007:20
SEA
-
DUB
2 stops27h 00m
Scandinavian Airlines
Deal found 27/6£505
Sat 10/1021:00
DUB
-
SEA
2 stops24h 45m
Scandinavian Airlines
Fri 23/1007:20
SEA
-
DUB
2 stops18h 05m
Scandinavian Airlines
Deal found 29/6£510
Direct flights from Dublin to Seattle
Explore direct flight options from Dublin to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 1 July 2026.
Thu 27/815:25
DUB
-
SEA
Nonstop9h 45m
Aer Lingus
Sun 30/819:10
SEA
-
DUB
Nonstop9h 05m
Aer Lingus
Deal found 30/6£598
Sat 26/915:25
DUB
-
SEA
Nonstop9h 45m
Aer Lingus
Fri 2/1019:10
SEA
-
DUB
Nonstop9h 05m
Aer Lingus
Deal found 30/6£603
Fri 25/915:25
DUB
-
SEA
Nonstop9h 45m
Aer Lingus
Mon 5/1019:10
SEA
-
DUB
Nonstop9h 05m
Aer Lingus
Deal found 30/6£604
Tue 22/915:25
DUB
-
SEA
Nonstop9h 45m
Aer Lingus
Sat 3/1019:10
SEA
-
DUB
Nonstop9h 05m
Aer Lingus
Deal found 30/6£704
Fri 18/915:25
DUB
-
SEA
Nonstop9h 45m
Iberia
Mon 28/919:10
SEA
-
DUB
Nonstop9h 05m
Iberia
Deal found 1/7£723
Sat 26/915:25
DUB
-
SEA
Nonstop9h 45m
Iberia
Sun 4/1019:10
SEA
-
DUB
Nonstop9h 05m
Iberia
Deal found 30/6£734
Mon 3/815:25
DUB
-
SEA
Nonstop9h 45m
Aer Lingus
Thu 20/819:10
SEA
-
DUB
Nonstop9h 05m
Aer Lingus
Deal found 30/6£775
Fri 25/915:25
DUB
-
SEA
Nonstop9h 45m
Iberia
Mon 5/1019:10
SEA
-
DUB
Nonstop9h 05m
Iberia
Deal found 29/6£779
Thu 27/815:25
DUB
-
SEA
Nonstop9h 45m
Iberia
Mon 31/819:10
SEA
-
DUB
Nonstop9h 05m
Iberia
Deal found 27/6£781
Sat 10/1015:25
DUB
-
SEA
Nonstop9h 45m
Iberia
Fri 23/1019:10
SEA
-
DUB
Nonstop9h 05m
Iberia
Deal found 27/6£792
Last-minute flights from Dublin to Seattle
Discover last-minute flight deals from Dublin to Seattle. Data last updated 1 July 2026 and is based on user searches.
Fri 21/819:05
DUB
-
SEA
1 stop26h 40m
Scandinavian Airlines
Fri 11/915:55
SEA
-
DUB
1 stop18h 25m
Scandinavian Airlines
Deal found 27/6£526
Thu 27/809:40
DUB
-
SEA
2 stops19h 20m
Multiple Airlines
Sun 30/815:40
SEA
-
DUB
1 stop13h 35m
Multiple Airlines
Deal found 29/6£354
Thu 27/809:40
DUB
-
SEA
2 stops19h 20m
Multiple Airlines
Mon 31/815:40
SEA
-
DUB
1 stop13h 35m
Multiple Airlines
Deal found 27/6£499
Fri 28/812:15
DUB
-
SEA
1 stop13h 40m
Icelandair
Sat 5/923:25
SEA
-
DUB
1 stop29h 50m
Icelandair
Deal found 29/6£507
One-way flights from Dublin to Seattle
Search for one-way flight options from Dublin to Seattle. Find affordable one-way fares based on user searches. Data last updated 1 July 2026.
Sat 5/911:30
DUB
-
SEA
1 stop17h 38m
JetBlue
Deal found 29/6£342
Tue 11/811:30
DUB
-
SEA
1 stop17h 38m
JetBlue
Deal found 29/6£413
Sun 9/808:50
DUB
-
SEA
3 stops22h 30m
United Airlines
Deal found 29/6£1,101
Sat 18/711:35
DUB
-
SEA
3 stops19h 44m
United Airlines
Deal found 29/6£1,105
Tue 21/709:30
DUB
-
SEA
3 stops21h 40m
United Airlines
Deal found 1/7£1,110
Sat 31/1012:05
DUB
-
SEA
3 stops43h 11m
United Airlines
Deal found 29/6£1,152
Sun 25/1010:40
DUB
-
SEA
2 stops19h 22m
United Airlines
Deal found 27/6£2,326
Thu 1/1007:00
DUB
-
SEA
2 stops19h 25m
British Airways
Deal found 30/6£6,949
Find 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 1 July 2026.
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 1 July 2026.
Use the filters below to find and compare flights from Dublin to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Sat 26/9
20:00-13:45
2 stops25h 45m
Seattle/Tacoma Intl
Sun 4/10
15:55-18:20
1 stop18h 25m
£455
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Sat 10/10
14:15-20:40
1 stop14h 25m
Seattle/Tacoma Intl
Fri 23/10
15:40-13:15
1 stop13h 35m
£495
Fastest return journey
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Tue 22/9
14:15-17:55
1 stop11h 40m
Seattle/Tacoma Intl
Wed 7/10
15:40-13:15
1 stop13h 35m
£500
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Thu 10/9
19:05-13:45
1 stop26h 40m
Seattle/Tacoma Intl
Thu 1/10
07:20-18:20
2 stops27h 00m
£505
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Sat 10/10
21:00-13:45
2 stops24h 45m
Seattle/Tacoma Intl
Fri 23/10
07:20-09:25
2 stops18h 05m
£510
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Wed 9/12
05:45-20:27
2 stops22h 42m
Seattle/Tacoma Intl
Wed 16/12
06:05-07:55
1 stop17h 50m
£515
Cheapest one-way
Fastest single journey
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Sat 5/9
11:30-21:08
1 stop17h 38m
£342
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Tue 11/8
11:30-21:08
1 stop17h 38m
£413
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Sun 9/8
08:50-23:20
3 stops22h 30m
£1,101
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Tue 21/7
09:30-23:10
3 stops21h 40m
£1,105
Flights are sorted by cheapest return flights first.
Deals found on 29/6
Showing 1-10 of 13 resultsSorted by cheapest first
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.
DUB-SEA
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
Prices
Airlines
Delays
More
How far ahead should I book a flight from Dublin to Seattle?
Booking 57 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, November is the cheapest month in which you can book a flight from Dublin to Seattle (average of £422). Flying from Dublin to Seattle in July is currently the most expensive (average of £790). 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 1 July 2026.
When flying from Dublin to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How much does it cost for a return flight from Dublin to Seattle?
Weekly flight availability from Dublin to Seattle
Explore weekly flight availability from Dublin to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 1 July 2026.
The most flights from DUB to SEA are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).
How often are flights from Dublin to Seattle delayed?
About 9% of weekly flights between Dublin and Seattle have experienced delays in the past year, with the average delay time being 179 minutes.
What is the most punctual flight time for Dublin to Seattle flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Thursday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Dublin to Seattle flights?
Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 9% of flights being delayed.
What’s the top stopover airport for flights from Dublin to Seattle?
Share of one-stop return flights from Dublin to Seattle chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Reykjavik (KEF) – chosen by Cheapflights users on 38% of one-stop itineraries from Dublin to Seattle on Cheapflights.
What’s the cheapest stopover airport for flights from Dublin to Seattle?
Average return fare for one-stop flights from Dublin to Seattle, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Reykjavik (KEF) is the most affordable one-stop option, with an average return flight price of £605.
What’s the fastest stopover option from Dublin to Seattle?
Shortest average travel time for one-stop one-way flights from Dublin to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Reykjavik (KEF) have the shortest average one-way travel time for one-stop routes: 12h 34m.
Which airport typically offers the quickest stopover for flights from Dublin to Seattle?
Average stopover duration for one-stop one-way flights from Dublin to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Amsterdam (AMS) offer the fastest connection on this route, with an average stopover time of 1h 53m.
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 1 July 2026.
Read through reviews of airlines operating flights from Dublin to Seattle, such as Scandinavian Airlines,Aer Lingus, andIcelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
The flight was smooth for the most part. Please remove those extra pillows on the headrest of the chair. They make your neck hurt by pushing your head forward. We flew on two other planes that did not have that feature and the seats were very comfortable. The crew members were very nice, and the pizza twists were really good.
The flight was smooth for the most part. Please remove those extra pillows on the headrest of the chair. They make your neck hurt by pushing your head forward. We flew on two other planes that did not have that feature and the seats were very comfortable. The crew members were very nice, and the pizza twists were really good.
The flight was smooth for the most part. Please remove those extra pillows on the headrest of the chair. They make your neck hurt by pushing your head forward. We flew on two other planes that did not have that feature and the seats were very comfortable. The crew members were very nice, and the pizza twists were really good.
The flight was smooth for the most part. Please remove those extra pillows on the headrest of the chair. They make your neck hurt by pushing your head forward. We flew on two other planes that did not have that feature and the seats were very comfortable. The crew members were very nice, and the pizza twists were really good.
The flight was smooth for the most part. Please remove those extra pillows on the headrest of the chair. They make your neck hurt by pushing your head forward. We flew on two other planes that did not have that feature and the seats were very comfortable. The crew members were very nice, and the pizza twists were really good.
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.
What airports do I use to fly from Dublin to Seattle?
If you book a flight from Dublin to Seattle, you will be flying from Dublin to Seattle/Tacoma Intl. Flights to Seattle/Tacoma Intl (SEA) from Dublin (DUB) take 9h 45m for a nonstop flight. There are 4 flights from Dublin to Seattle per day from 4 airlines.
How popular is this Dublin to Seattle flight route?
This flight path from Dublin to Seattle/Tacoma Intl was viewed by 38 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 (£325), Icelandair (£348), and British Airways (£373) offers the cheapest pricing from Dublin to Seattle. You may be able to fly from Dublin to Seattle for 41% less than the average price by searching for these airlines.
What are the most reliable airlines from Dublin to Seattle?
Consider American Airlines (80%), Aer Lingus (80%) or Iberia (80%) 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 £789, our data indicates the cheapest price to be £589. The most popular route (Dublin - Seattle/Tacoma Intl), is priced around £474.
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, November is the cheapest month in which you can book a flight from Dublin to Seattle (average of £422). Flying from Dublin to Seattle in July is currently the most expensive (average of £790). 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.
Discover the top 4 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 1 July 2026.
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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