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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SEA
17 Jan — 24 Jan1
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 February or November, booked 66 days in advance, depart on a Friday or Tuesday and return on a Wednesday
Cheap flight deals from Dublin to Seattle
Enter your travel dates to find the best prices.
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 18 December 2025.
Wed 24/1213:00DUB - SEA
1 stop32h 00mAmerican Airlines
Mon 29/1207:07SEA - DUB
1 stop16h 08mAmerican Airlines
Deal found 15/12£613
Tue 23/1213:00DUB - SEA
2 stops30h 15mAmerican Airlines
Tue 30/1218:02SEA - DUB
1 stop29h 13mAmerican Airlines
Deal found 15/12£620
Tue 23/1210:40DUB - SEA
2 stops20h 32mUnited Airlines
Tue 20/117:12SEA - DUB
2 stops30h 18mUnited Airlines
Deal found 15/12£622
Wed 24/1215:10DUB - SEA
2 stops33h 59mAmerican Airlines
Sat 27/1223:07SEA - DUB
1 stop25h 33mAmerican Airlines
Deal found 15/12£624
Tue 23/1213:00DUB - SEA
2 stops30h 15mAmerican Airlines
Mon 29/1205:23SEA - DUB
2 stops19h 17mAmerican Airlines
Deal found 15/12£626
Wed 24/1215:10DUB - SEA
2 stops33h 59mAmerican Airlines
Tue 30/1207:07SEA - DUB
2 stops17h 33mAmerican Airlines
Deal found 15/12£633
Tue 23/1209:45DUB - SEA
1 stop19h 00mMultiple Airlines
Tue 20/113:40SEA - DUB
1 stop18h 05mMultiple Airlines
Deal found 15/12£635
Wed 24/1209:00DUB - SEA
2 stops32h 55mUnited Airlines
Sun 28/1205:02SEA - DUB
2 stops19h 08mUnited Airlines
Deal found 15/12£640
Mon 22/1210:40DUB - SEA
2 stops20h 32mUnited Airlines
Tue 30/1207:00SEA - DUB
1 stop17h 10mUnited Airlines
Deal found 15/12£642
Wed 24/1210:40DUB - SEA
2 stops18h 37mUnited Airlines
Wed 7/106:03SEA - DUB
2 stops18h 07mUnited Airlines
Deal found 16/12£644
Mon 22/1213:25DUB - SEA
1 stop30h 25mMultiple Airlines
Mon 29/1214:05SEA - DUB
1 stop24h 50mMultiple Airlines
Deal found 15/12£645
Mon 22/1213:25DUB - SEA
1 stop30h 25mMultiple Airlines
Sun 28/1207:40SEA - DUB
1 stop17h 40mMultiple Airlines
Deal found 15/12£645
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 18 December 2025.
Tue 3/212:30DUB - SEA
2 stops41h 55mScandinavian Airlines
Tue 10/214:02SEA - DUB
2 stops37h 43mScandinavian Airlines
Deal found 15/12£486
Sun 25/111:30DUB - SEA
1 stop13h 30mIcelandair
Fri 30/114:35SEA - DUB
1 stop11h 40mIcelandair
Deal found 17/12£520
Sun 25/113:25DUB - SEA
3 stops35h 35mMultiple Airlines
Fri 30/114:35SEA - DUB
2 stops20h 15mMultiple Airlines
Deal found 17/12£541
Sat 7/210:10DUB - SEA
2 stops40h 48mScandinavian Airlines
Sun 15/207:10SEA - DUB
2 stops44h 35mScandinavian Airlines
Deal found 15/12£486
Thu 5/212:30DUB - SEA
2 stops41h 55mScandinavian Airlines
Sun 15/207:10SEA - DUB
2 stops44h 35mScandinavian Airlines
Deal found 15/12£486
Wed 4/311:30DUB - SEA
1 stop13h 30mIcelandair
Sun 8/315:00SEA - DUB
1 stop12h 15mIcelandair
Deal found 14/12£547
Sat 7/210:10DUB - SEA
2 stops40h 48mScandinavian Airlines
Mon 9/211:17SEA - DUB
2 stops40h 28mScandinavian Airlines
Deal found 15/12£486
Fri 6/211:30DUB - SEA
1 stop13h 30mIcelandair
Sun 15/214:35SEA - DUB
1 stop11h 40mIcelandair
Deal found 15/12£547
Fri 6/211:30DUB - SEA
1 stop13h 30mIcelandair
Tue 10/214:35SEA - DUB
1 stop11h 40mIcelandair
Deal found 15/12£547
Wed 4/312:30DUB - SEA
2 stops38h 26mScandinavian Airlines
Sun 8/313:30SEA - DUB
2 stops39h 15mScandinavian Airlines
Deal found 15/12£539
Mon 2/211:30DUB - SEA
1 stop13h 30mIcelandair
Wed 11/214:35SEA - DUB
1 stop11h 40mIcelandair
Deal found 15/12£547
Wed 4/211:30DUB - SEA
1 stop13h 30mIcelandair
Mon 9/214:35SEA - DUB
1 stop11h 40mIcelandair
Deal found 15/12£547
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 18 December 2025.
Fri 17/415:20DUB - SEA
Nonstop9h 39mAer Lingus
Fri 24/418:45SEA - DUB
Nonstop9h 00mAer Lingus
Deal found 16/12£449
Fri 27/316:30DUB - SEA
Nonstop9h 50mAer Lingus
Fri 10/418:45SEA - DUB
Nonstop9h 00mAer Lingus
Deal found 16/12£618
Fri 17/415:20DUB - SEA
Nonstop9h 39mAmerican Airlines
Fri 24/418:45SEA - DUB
Nonstop9h 00mAmerican Airlines
Deal found 16/12£714
Sun 29/315:20DUB - SEA
Nonstop9h 39mAer Lingus
Wed 8/418:45SEA - DUB
Nonstop9h 00mAer Lingus
Deal found 15/12£740
Fri 27/316:30DUB - SEA
Nonstop9h 50mIberia
Wed 8/418:45SEA - DUB
Nonstop9h 00mIberia
Deal found 16/12£768
Fri 27/316:30DUB - SEA
Nonstop9h 50mAmerican Airlines
Wed 8/418:45SEA - DUB
Nonstop9h 00mAmerican Airlines
Deal found 16/12£799
Fri 27/316:30DUB - SEA
Nonstop9h 50mIberia
Fri 10/418:45SEA - DUB
Nonstop9h 00mIberia
Deal found 17/12£828
Wed 31/1216:30DUB - SEA
Nonstop9h 50mMultiple Airlines
Sun 4/120:05SEA - DUB
Nonstop9h 05mMultiple Airlines
Deal found 15/12£2,126
Last-minute flights from Dublin to Seattle
Discover last-minute flight deals from Dublin to Seattle. Data last updated 18 December 2025 and is based on user searches.
Mon 12/112:30DUB - SEA
2 stops41h 55mScandinavian Airlines
Mon 19/111:17SEA - DUB
2 stops40h 28mScandinavian Airlines
Deal found 15/12£503
Mon 12/120:40DUB - SEA
1 stop22h 50mBritish Airways
Mon 19/118:50SEA - DUB
1 stop16h 35mBritish Airways
Deal found 15/12£581
Fri 16/105:10DUB - SEA
2 stops25h 33mLufthansa
Sat 24/110:58SEA - DUB
1 stop13h 12mLufthansa
Deal found 17/12£586
Fri 16/109:00DUB - SEA
1 stop21h 16mUnited Airlines
Sat 24/107:00SEA - DUB
1 stop17h 10mUnited Airlines
Deal found 17/12£593
Sun 25/111:30DUB - SEA
1 stop13h 30mIcelandair
Fri 30/114:35SEA - DUB
1 stop11h 40mIcelandair
Deal found 17/12£520
Sun 25/113:25DUB - SEA
3 stops35h 35mMultiple Airlines
Fri 30/114:35SEA - DUB
2 stops20h 15mMultiple Airlines
Deal found 17/12£541
Sun 25/110:10DUB - SEA
2 stops40h 48mScandinavian Airlines
Fri 30/114:02SEA - DUB
2 stops35h 23mScandinavian Airlines
Deal found 17/12£559
Thu 29/105:00DUB - SEA
1 stop15h 10mLufthansa
Thu 5/214:10SEA - DUB
2 stops19h 00mLufthansa
Deal found 15/12£584
Fri 30/107:05DUB - SEA
2 stops17h 55mMultiple Airlines
Fri 6/214:35SEA - DUB
2 stops20h 35mMultiple Airlines
Deal found 16/12£482
Fri 30/120:35DUB - SEA
1 stop22h 55mBritish Airways
Fri 6/213:35SEA - DUB
1 stop12h 40mBritish Airways
Deal found 16/12£568
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 18 December 2025.
Thu 9/411:30DUB - SEA
2 stops34h 49mWestJet
Deal found 17/12£349
Sun 24/512:15DUB - SEA
2 stops40h 13mWestJet
Deal found 15/12£452
Fri 12/608:35DUB - SEA
1 stop17h 50mBritish Airways
Deal found 15/12£488
Wed 8/409:40DUB - SEA
2 stops21h 25mFinnair
Deal found 17/12£557
Sat 31/109:15DUB - SEA
1 stop14h 25mMultiple Airlines
Deal found 17/12£576
Wed 31/1208:45DUB - SEA
1 stop16h 10mBritish Airways
Deal found 15/12£753
Wed 31/1206:45DUB - SEA
3 stops37h 45mMultiple Airlines
Deal found 15/12£756
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 18 December 2025.
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 18 December 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
Tue 3/2
12:30-22:25
2 stops41h 55m
Seattle/Tacoma Intl
Tue 10/2
14:02-11:45
2 stops37h 43m
£486
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Sat 7/2
10:10-18:58
2 stops40h 48m
Seattle/Tacoma Intl
Sun 15/2
07:10-11:45
2 stops44h 35m
£486
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Thu 5/2
12:30-22:25
2 stops41h 55m
Seattle/Tacoma Intl
Sun 15/2
07:10-11:45
2 stops44h 35m
£486
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Sat 7/2
10:10-18:58
2 stops40h 48m
Seattle/Tacoma Intl
Mon 9/2
11:17-11:45
2 stops40h 28m
£486
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Sun 25/1
11:30-17:00
1 stop13h 30m
Seattle/Tacoma Intl
Fri 30/1
14:35-10:15
1 stop11h 40m
£520
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Wed 4/3
12:30-18:56
2 stops38h 26m
Seattle/Tacoma Intl
Sun 8/3
13:30-11:45
2 stops39h 15m
£539
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Sun 25/1
13:25-17:00
3 stops35h 35m
Seattle/Tacoma Intl
Fri 30/1
14:35-18:50
2 stops20h 15m
£541
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Wed 4/3
11:30-17:00
1 stop13h 30m
Seattle/Tacoma Intl
Sun 8/3
15:00-10:15
1 stop12h 15m
£547
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Fri 6/2
11:30-17:00
1 stop13h 30m
Seattle/Tacoma Intl
Sun 15/2
14:35-10:15
1 stop11h 40m
£547
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Fri 6/2
11:30-17:00
1 stop13h 30m
Seattle/Tacoma Intl
Tue 10/2
14:35-10:15
1 stop11h 40m
£547
Flights are sorted by cheapest return flights first.
Deals found on 17/12
Showing 1-10 of 20 results
1
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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.
Cheapflights Insights
Everything you need to know about your flight from Dublin to Seattle
Prices
Delays
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 12 December 2025.
Booking 66 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, March is the cheapest month in which you can book a flight from Dublin to Seattle (average of £347). Flying from Dublin to Seattle in July is currently the most expensive (average of £591). 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 18 December 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 evening, which can drop the price by up to 20% versus a flight in the afternoon.
How much does it cost for a return flight from Dublin to Seattle?
How often are flights from Dublin to Seattle delayed?
About 11% of weekly flights between Dublin and Seattle have experienced delays in the past year, with the average delay time being 141 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?
Tuesday 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 11% 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 61% 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.
Copenhagen (CPH) is the most affordable one-stop option, with an average return flight price of £508.
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 Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 13h 23m.
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 54m.
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 18 December 2025.
Read through reviews of airlines operating flights from Dublin to Seattle, such as Scandinavian Airlines, American Airlines, andAer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
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 50m for a nonstop flight. There is 1 flight from Dublin to Seattle per day from 5 airlines.
How popular is this Dublin to Seattle flight route?
This flight path from Dublin to Seattle/Tacoma Intl was viewed by 77 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
How long is the flight from Dublin to Seattle?
For as low as £520, Scandinavian Airlines can have you in Seattle from Dublin in 13h 30m. There are 4523 mi between Dublin and Seattle. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from Dublin to Seattle round-trip?
According to our current data, Scandinavian Airlines (£321), British Airways (£350), and Aer Lingus (£398) offers the cheapest pricing from Dublin to Seattle. You may be able to fly from Dublin to Seattle for 39% less than the average price by searching for these airlines.
What are the most reliable airlines from Dublin to Seattle?
Consider American Airlines (82%), British Airways (82%) or Aer Lingus (42%) 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 £592, our data indicates the cheapest price to be £469. The most popular route (Dublin - Seattle/Tacoma Intl), is priced around £559.
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, March is the cheapest month in which you can book a flight from Dublin to Seattle (average of £347). Flying from Dublin to Seattle in July is currently the most expensive (average of £591). 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.
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 18 December 2025.
Discover the top 5 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 18 December 2025.
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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