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Find cheap flights to Seattle from €390

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Seattle departing on 2/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Tue 4/6
Tue 11/6

Search hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Seattle, as well as popular online travel agencies
In the last 7 days, travellers have searched 43,369,418 times on KAYAK, and here's why:

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Cheap flight deals to Seattle

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
12:15 - 20:35DUB-SEA
16h 20m1 stop
23:00 - 11:05SEA-DUB
28h 05m1 stop
€507Icelandair
Find Deal
Sun, 16 Jun - Sun, 30 Jun
12:15 - 20:35DUB-SEA
16h 20m1 stop
23:00 - 11:05SEA-DUB
28h 05m1 stop
€512Icelandair
Find Deal
Sun, 16 Jun - Sun, 30 Jun
12:15 - 11:20DUB-SEA
31h 05m1 stop
18:55 - 11:05SEA-DUB
32h 10m1 stop
€519Icelandair
Find Deal
Mon, 27 May - Tue, 4 Jun
13:20 - 10:10DUB-SEA
28h 50m1 stop
06:00 - 08:45SEA-DUB
18h 45m1 stop
€571Delta
Find Deal
Fri, 24 May - Fri, 31 May
08:55 - 16:40DUB-SEA
15h 45m1 stop
18:20 - 16:55SEA-DUB
14h 35m1 stop
€572Delta
Find Deal
Sat, 25 May - Sat, 1 Jun
13:00 - 17:45DUB-SEA
12h 45m1 stop
18:45 - 15:05SEA-DUB
12h 20m1 stop
€626British Airways
Find Deal
Fri, 25 Oct - Sun, 3 Nov
12:30 - 23:00DUB-SEA
18h 30m2 stops
07:00 - 07:05SEA-DUB
16h 05m2 stops
€749United Airlines
Find Deal
Thu, 12 Sep - Sat, 28 Sep
13:35 - 22:27DUB-SEA
16h 52m2 stops
05:05 - 07:05SEA-DUB
18h 00m2 stops
€758United Airlines
Find Deal
Wed, 22 May - Tue, 28 May
15:20 - 17:01DUB-SEA
9h 41mdirect
18:45 - 11:45SEA-DUB
9h 00mdirect
€884Aer Lingus
Find Deal
Wed, 11 Sep - Wed, 25 Sep
15:20 - 17:01DUB-SEA
9h 41mdirect
18:45 - 11:45SEA-DUB
9h 00mdirect
€899Aer Lingus
Find Deal
Wed, 11 Sep - Fri, 27 Sep

Flights to Seattle - Travel Insights & Trends

Get data-powered insights and trends into flights to Seattle to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest day to fly to Seattle?

The average price of all flights to Seattle clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Seattle is Friday where tickets can be as cheap as €658. On the other hand, the most expensive day to fly is Sunday, where prices are €870 on average.

What is the cheapest month to fly to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights to Seattle is April, where tickets cost €565 on average for one-way flights. On the other hand, the most expensive months are July and August, where the average cost of tickets from Ireland is €961 and €839 respectively. For return trips, the best month to travel is February with an average price of €457.

What is the cheapest time of day to fly to Seattle?

The average price for all flights to Seattle depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Seattle is generally in the morning, when flights cost €639 on average. The most expensive time of day to fly to Seattle is generally in the evening, which is peak travel time and where the average cost of a ticket is €756.

How far in advance should I book a flight to Seattle?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price, you should book around 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 85 days before departure.

Which airline offers the most flights to Seattle?

Of the 10 airlines that fly to Seattle, Alaska Airlines offers the most flights, with around 3,167 per week, followed by Delta with 1,027 flights per week.

How long is the flight to Seattle?

The duration of your flight to Seattle depends on your departure and arrival airports. Obviously any flights that include a layover will also be longer. The most popular routes to Seattle on KAYAK are from Dublin, which takes 9h 41m, Cork, which takes 25h 00m, and Shannon, which takes 25h 55m.

How many direct flights to Seattle are there each day?

There are around 2 direct flights from within Ireland to Seattle every day. Most flights depart in the afternoon, with 15:00 the most common departure time and 100% of flights departing in the afternoon.

How many direct flights to Seattle are there each week?

Each week there are around 11 direct flights from within Ireland to Seattle. The most common day for departures is Friday, with 18% of flights taking off on this day.

How many long-haul flights are there to Seattle each week?

There are not any medium-haul (3-6 hour flight duration) or short-haul (up to 3 hour flight duration) flights to Seattle. Instead, there are 11 long-haul flights (6-12 hour flight duration), with the most arriving from Dublin.

How many cities have direct flights to Seattle?

From Ireland, there are direct flights to Seattle from 1 city. This city is Dublin and there are 11 direct flights each week.

Good to know

Low season

February

High season

September

Cheapest flight

€390
Best time to beat the crowds (29% less expensive on average)
Most popular time to fly and prices are also 6% lower on average.
Flight from Dublin to Seattle

When to book flights to Seattle

Are your dates flexible? Find out the best times to travel to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. The information is for flights to Seattle based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Seattle flights

  • How far is Seattle from central Seattle?

    Seattle is 18 km from the centre of Seattle.

  • What is the name of Seattle’s airport?

    When flying to Seattle, you'll arrive at Seattle (SEA). The airport is also known as Seattle-Tacoma Intl, Seattle/Tacoma, or Seattle/Tacoma Intl.

  • How much is a flight to Seattle?

    On average, a flight to Seattle costs €874. The cheapest price found on KAYAK in the last 2 weeks cost €383 and departed from Dublin Airport.

  • How does KAYAK find such low prices on flights to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Seattle

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Seattle flight deals.

Prefer to fly direct to Seattle/Tacoma Intl?

Find which airlines fly direct to Seattle/Tacoma Intl, which days they fly and book direct flights.

Direct departures

Ireland to Seattle/Tacoma Intl

Monday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Tuesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Wednesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Thursday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Friday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Saturday

ANA, Aer Lingus, Aeromexico, +62 more

ANA, Aer Lingus, +63 more

Sunday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

See more direct flights

Direct returns

Seattle/Tacoma Intl to Ireland

Monday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Tuesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Wednesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Thursday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Friday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Saturday

ANA, Aer Lingus, Aeromexico, +62 more

ANA, Aer Lingus, +63 more

Sunday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

See more direct flights
See more direct flights

Top 4 airlines flying to Seattle

 
See real verified KAYAK customer reviews for airlines flying to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to Seattle. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 11118 reviews
7.1Entertainment
7.2Comfort
6.7Food
7.7Boarding
8.1Crew
Airline reviews

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

2.0 MediocreTed, May 2024IAD - SFO
Read more about United Airlines reviews

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Only water and pretzels served on six hour flight. Did not see crew rest of flight. No video screens and so no wired audio. Poor sound on plan so did not understand anything said by crew. This is a safety issue. Electrical socket did not retain charging block so could not charge phone. No video screen so could not watch movies. Phone is not a substitute.

It was fine. Flight was on time and arrived at destination with 15 min to spare.

My bag was lost with my medicine and I am very inconvenienced. I don’t know what happened, however I want you to do a better job on getting people’s bag back

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The food that was offered based on class level of your ticket was absolutely ridiculous and disgusting. They didn't even hot tea to serve, the food was horrible. On our departure flight I was seated in premium plus economy and considering the cost of the flight the food was literally some of the worst I've ever eaten. On the return flight I sat in economy with extra leg room and was given a thin little throw "blanket" and a flimsy little pillow. The air condition was on artic and the seating arrangement wasn't really worth the money. The seat didn't recline good enough and the foot rest was laughable. Total waste.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the room where it was being kept.

The flight was delayed due to weather issue…WiFi did not work and even though I wanted to pay for WiFi I couldn’t buy it. Overall very disappointing even though I paid and reserved Business class

Short flight so not much to rate. Surprised I had to pay for a soda.

the room on the plane was good but that is because flight not sold the other three seat and I had room. the food in terrible.

First the price I paid was excellent, my flight was full, but my seat was roomy. The one downside to the experience was they had games on the entertainment console. The guy behind me poked at my head about half the flight. I hope they get rid of this feature.

Very good need to offer better choice of food for business

They should. Heck planes more often not when they are suppose to be leaving causing delays

Crew was fantastic got lovely food and plenty of water. Entertainment was good. Never had to ask for anything. Left on time and got to Seattle early. Luggage did not take long either.

Always find Aer Lingus reliable and good value for money. Food on this flight was pretty basic and the headphone Jack at my seat only worked for one ear. Little disappointed in movie selection, limited on recent releases. Staff are okay - but I always buy a cheap ticket so not like I expect first class opulence anyway!!!

Boarding was so quick, flight was ahead of time which is great and the pilot spoke clearly and was letting people know everything, amazing, love travelling with you 😊

Great hospitality and service! Seats are better cushioned then some

Great hospitality and service! Seats could always be cushioned better.

So Iceland Air is one step above Spirit Airlines. They do not feed you unless you pay for it or are in Saga Class. So, bring your food. They have a drink service, but it's in a large Dixie cup. Ask for the can, that is the only way you'll get a real drink. Also, we missed our connecting flight so they put us up in a flea-bag motel. Don't get me wrong, the staff was nice and friendly, however, there was no shower gel or shampoo in the hotel. We have to go to the corner store to pick some up. The room was not in great shape. Holes in the bathroom, a badly repaired ceiling in the room. The window was warn out. So, you get the just of how bad it was.

Food and staff were excellent. Seats on Saga (business class) are comparable to domestic first class of US Airlines, regarding space and recline. Entertainment options had little international component.

Flight delayed Delay to the gate upon arrival Baggage took more than an hour so we missed our connecting!!! Terrible experience!

There is no food without paying $. Only soft drinks are included in your fare.

Some drinks and basic snack will be good. Water should be served at least once an hour. Blankets for folks who might be cold.

Pros: "Flight was relatively empty. Professional crew, comfortable seats"
Cons: "I think they skipped me with food service. Checking up on passengers who may have been sleeping would be nice. Headphones need to be purchased. Limited entertainment options."
Cons: "Communication about international COVID requirements before the day of departure."
Pros: "My seat cushion was out of alignment so not great. But I like the two side seat configuration."
Cons: "Boarding is a zoo. Board by row. It’s faster."
Pros: "Icelandair crew were very hospitable and accompodating"
Cons: "I have never sat in such a narrow seat. Literally could not put my hand down the side to pull out my seat belt. Two days later I still have sores from where the side of the seats hit my hips. Did not even provide complimentary peanuts."
Cons: "Took far too long for drinks service into the flight. Almost 2 hours in before drinks came around to me"

my original flight was cancelled the previous day, and i was rescheduled onto this flight, which left much earlier in the morning, impacting my previous evening and requiring me to get up much earlier in the morning to get to the airport online. This practice happens way way way too much, and it seems on every airline, though AA is probably the worst.

Spending 10 hours on a flight with no video or wifi access due to issues per stewardess was not enjoyable nor acceptable. Will follow up directly with the airline as well

I really did not like being ordered to pull my shade down by the attendants. One of them was very rude to me about it, standing there until I closed it like I was a child brusquely reaching across me to close an adjoining one. They claim it was so people who wanted to could sleep. It’s a 10:30am flight not a red eye. Closing your shade or leaving it up for natural light should be a choice. Ruined my flight!

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

The crew was very attentive and kept busy serving a variety of treats!

Terrible. Flight was 3 hours delayed and I missed my other flight to my final destination

Offered vegetable curry when it was actually tofu which I don’t care for.

The flight was good the crew excellent…but take off delayed three hours!!!

Both mine and my husband's chairs were broken. Also it took 2 hours to get our bags after our flight which was wild.

perhaps eye contact with the cabin crew, instead of abruptness and an impatience to serve.

Book Cheap Seattle Plane Tickets

Recent return flight deals

 
These are the cheapest return flights to Seattle found on KAYAK in the last 72 hours.
16/6Sun
1 stopIcelandair
16h 20mDUB-SEA
30/6Sun
1 stopIcelandair
28h 05mSEA-DUB
€507
16/6Sun
1 stopIcelandair
16h 20mDUB-SEA
30/6Sun
1 stopIcelandair
28h 05mSEA-DUB
€512
27/5Mon
1 stopIcelandair
31h 05mDUB-SEA
4/6Tue
1 stopIcelandair
32h 10mSEA-DUB
€519
24/5Fri
1 stopDelta
28h 50mDUB-SEA
31/5Fri
1 stopDelta
18h 45mSEA-DUB
€571
25/5Sat
1 stopDelta
15h 45mDUB-SEA
1/6Sat
1 stopDelta
14h 35mSEA-DUB
€572
25/10Fri
1 stopBritish Airways
12h 45mDUB-SEA
3/11Sun
1 stopBritish Airways
12h 20mSEA-DUB
€626
12/9Thu
2 stopsUnited Airlines
18h 30mDUB-SEA
28/9Sat
2 stopsUnited Airlines
16h 05mSEA-DUB
€749
22/5Wed
2 stopsUnited Airlines
16h 52mDUB-SEA
28/5Tue
2 stopsUnited Airlines
18h 00mSEA-DUB
€758
11/9Wed
directAer Lingus
9h 41mDUB-SEA
25/9Wed
directAer Lingus
9h 00mSEA-DUB
€884
11/9Wed
directAer Lingus
9h 41mDUB-SEA
27/9Fri
directAer Lingus
9h 00mSEA-DUB
€899

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Seattle found on KAYAK in the last 72 hours.
2/10Wed
1 stopIcelandair
16h 20mDUB-SEA
€390
22/5Wed
2 stopsWestJet
33h 26mDUB-SEA
€446
25/6Tue
2 stopsWestJet
33h 26mDUB-SEA
€463
4/10Fri
3 stops
31h 41mDUB-SEA
€483
24/8Sat
directAer Lingus
9h 41mDUB-SEA
€561
26/8Mon
directAer Lingus
9h 41mDUB-SEA
€572
24/8Sat
1 stop
26h 50mDUB-SEA
€579
22/7Mon
1 stopIberia
20h 28mDUB-SEA
€797
2/10Wed
3 stopsUnited Airlines
30h 07mDUB-SEA
€1,114
22/7Mon
3 stopsUnited Airlines
20h 52mDUB-SEA
€1,217

Search by stops

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Search by price

Recent domestic flight deals

24/9Tue
multi-stopSpirit Airlines
13h 51mLAX-SEA
25/9Wed
directSpirit Airlines
3h 18mSEA-LAX
€123
19/6Wed
directDelta
2h 55mLAX-SEA
26/6Wed
directDelta
2h 51mSEA-LAX
€127
19/6Wed
directAlaska Airlines
2h 12mSFO-SEA
3/7Wed
directAlaska Airlines
2h 11mSEA-SFO
€138
29/5Wed
directAlaska Airlines
2h 51mSNA-SEA
5/6Wed
directAlaska Airlines
2h 45mSEA-SNA
€146
8/7Mon
multi-stopSun Country Air
17h 07mORD-SEA
13/7Sat
multi-stopSun Country Air
5h 48mSEA-ORD
€225
17/8Sat
multi-stopUnited Airlines
7h 57mORD-SEA
21/8Wed
directUnited Airlines
4h 01mSEA-ORD
€227
2/7Tue
multi-stopSun Country Air
28h 49mORD-SEA
9/7Tue
multi-stopSun Country Air
19h 59mSEA-ORD
€231
15/8Thu
directUnited Airlines
4h 39mORD-SEA
20/8Tue
multi-stopUnited Airlines
9h 45mSEA-ORD
€255
29/5Wed
directJetBlue
6h 19mJFK-SEA
5/6Wed
multi-stopJetBlue
11h 43mSEA-JFK
€308
25/5Sat
directJetBlue
6h 19mJFK-SEA
1/6Sat
directJetBlue
5h 21mSEA-JFK
€309

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Last minute flights to Seattle

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Seattle that are departing in the next 10 days.
8/5Wed
multi-stopIcelandair
13h 25mDUB-SEA
6/6Thu
multi-stopIcelandair
28h 05mSEA-DUB
€692
8/5Wed
multi-stopWestJet
27h 01mDUB-SEA
6/6Thu
multi-stopWestJet
19h 55mSEA-DUB
€749
8/5Wed
multi-stop
16h 37mDUB-SEA
6/6Thu
multi-stop
18h 20mSEA-DUB
€831
8/5Wed
multi-stopAmerican Airlines
21h 40mDUB-SEA
5/6Wed
multi-stopAmerican Airlines
24h 31mSEA-DUB
€833
8/5Wed
multi-stopIberia
19h 19mDUB-SEA
5/6Wed
multi-stopIberia
24h 31mSEA-DUB
€865
5/5Sun
multi-stopAir Canada
19h 41mDUB-SEA
27/5Mon
multi-stopAir Canada
18h 25mSEA-DUB
€885
8/5Wed
multi-stop
32h 01mDUB-SEA
9/5Thu
multi-stop
32h 10mSEA-DUB
€907
5/5Sun
directAer Lingus
9h 41mDUB-SEA
27/5Mon
directAer Lingus
9h 00mSEA-DUB
€983
5/5Sun
multi-stopAer Lingus
17h 51mDUB-SEA
27/5Mon
directAer Lingus
9h 00mSEA-DUB
€1,031
8/5Wed
multi-stopAmerican Airlines
17h 35mDUB-SEA
8/5Wed
multi-stopAmerican Airlines
24h 30mSEA-DUB
€1,082

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Flights to Seattle

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Ireland

Cabin classes:

€2,281
€2,408
€383

Popular routes

The most searched flights to Seattle by KAYAK users.