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Find cheap flights from Ireland to Seattle from $420

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 10/2. 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 6/4
Tue 6/11

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 travelers have searched 43,369,418 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

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Flights to Seattle - Travel Insights & Trends

Get data-powered insights and trends for 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 Thursday where tickets can be as cheap as $627. On the other hand, the most expensive day to fly is Tuesday, where prices are $895 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 $608 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 $1,034 and $903 respectively. For return trips, the best month to travel is February with an average price of $492.

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 $700 on average. The most expensive time of day to fly to Seattle is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $807.

What is a good deal for flights to Seattle?

If you’re looking for cheap airfare to Seattle, 25% of our users found tickets to Seattle for the following prices or less: From Dublin $523 one-way - $1,065 round-trip.

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 721 direct flights from within Ireland to Seattle every day. Most flights depart in the morning, with 7:00 am the most common departure time and 45% of flights departing in the morning.

How many direct flights to Seattle are there each week?

Each week there are around 5,045 direct flights from within Ireland to Seattle. The most common day for departures is Monday, with 15% 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

$420
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Dublin to Seattle

FAQs - booking Seattle flights

  • How far is Seattle from central Seattle?

    Central Seattle is 11 miles away from Seattle.

  • What is the name of Seattle’s airport?

    There is only 1 airport in Seattle, called Seattle (SEA). It can also be referred to as Seattle-Tacoma Intl, Seattle/Tacoma, or Seattle/Tacoma Intl.

  • How much is a flight to Seattle?

    On average, a flight to Seattle costs $861. The cheapest price found on KAYAK in the last 2 weeks cost $473 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 travelers 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 non-stop to Seattle/Tacoma Intl?

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

Nonstop 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

Nonstop 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 serving from Ireland 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.
7.3
American AirlinesOverall score based on 14713 reviews
7.1Entertainment
8.0Crew
7.6Boarding
7.2Comfort
6.6Food
Airline reviews

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

10.0 ExcellentMitchell, May 2024CMH - PHL
Read more about American Airlines reviews

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

They ocer booked the connecting flight. My bags took a long time to come out, nevertheless I got to the gate in time to board, but they have given my seat to another passenger. They were aware I was connecting from another flight that was a little late, but they did not care. The customer representatives were rude. A horrible experience.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

Not being able to purchase my check in baggage online was a negative.

LATE LATE LATE!!! Plagued by late AA flights on this trip. Such a drag. This one was by far the worst.

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 flights from Ireland to Seattle

Recent round-trip flight deals

 
These are the cheapest round-trip flights to Seattle found on KAYAK in the last 72 hours.
6/16Sun
1 stopIcelandair
16h 20mDUB-SEA
6/30Sun
1 stopIcelandair
28h 05mSEA-DUB
$546
6/16Sun
1 stopIcelandair
16h 20mDUB-SEA
6/30Sun
1 stopIcelandair
28h 05mSEA-DUB
$551
5/27Mon
1 stopIcelandair
31h 05mDUB-SEA
6/4Tue
1 stopIcelandair
32h 10mSEA-DUB
$559
5/22Wed
1 stopIcelandair
31h 05mDUB-SEA
5/28Tue
1 stopIcelandair
32h 10mSEA-DUB
$577
5/24Fri
1 stopDelta
28h 50mDUB-SEA
5/31Fri
1 stopDelta
18h 45mSEA-DUB
$615
5/25Sat
1 stopDelta
15h 45mDUB-SEA
6/1Sat
1 stopDelta
14h 35mSEA-DUB
$616
10/25Fri
1 stopBritish Airways
12h 45mDUB-SEA
11/3Sun
1 stopBritish Airways
12h 20mSEA-DUB
$674
5/25Sat
2 stopsAmerican Airlines
19h 22mDUB-SEA
5/31Fri
2 stopsAmerican Airlines
19h 45mSEA-DUB
$858
9/11Wed
nonstopAer Lingus
9h 41mDUB-SEA
9/25Wed
nonstopAer Lingus
9h 00mSEA-DUB
$952
9/11Wed
nonstopAer Lingus
9h 41mDUB-SEA
9/27Fri
nonstopAer Lingus
9h 00mSEA-DUB
$968

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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.
10/2Wed
1 stopIcelandair
16h 20mDUB-SEA
$420
8/24Sat
2 stopsWestJet
33h 31mDUB-SEA
$442
5/22Wed
2 stopsWestJet
33h 26mDUB-SEA
$480
10/4Fri
3 stops
31h 41mDUB-SEA
$520
7/10Wed
3 stops
32h 11mDUB-SEA
$581
8/24Sat
nonstopAer Lingus
9h 41mDUB-SEA
$604
8/26Mon
nonstopAer Lingus
9h 41mDUB-SEA
$616
7/22Mon
1 stopIberia
20h 28mDUB-SEA
$858
10/2Wed
3 stopsUnited Airlines
30h 07mDUB-SEA
$1,199
7/22Mon
3 stopsUnited Airlines
20h 52mDUB-SEA
$1,310

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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.
5/8Wed
multi-stopIcelandair
13h 25mDUB-SEA
6/6Thu
multi-stopIcelandair
28h 05mSEA-DUB
$745
5/10Fri
multi-stop
19h 19mDUB-SEA
5/17Fri
multi-stop
24h 55mSEA-DUB
$766
5/8Wed
multi-stopWestJet
27h 01mDUB-SEA
6/6Thu
multi-stopWestJet
19h 55mSEA-DUB
$806
5/10Fri
multi-stopAmerican Airlines
17h 00mDUB-SEA
5/17Fri
multi-stopAmerican Airlines
21h 35mSEA-DUB
$812
5/10Fri
multi-stopAmerican Airlines
16h 46mDUB-SEA
5/17Fri
multi-stopAmerican Airlines
23h 03mSEA-DUB
$817
5/8Wed
multi-stop
16h 37mDUB-SEA
6/6Thu
multi-stop
18h 20mSEA-DUB
$894
5/8Wed
multi-stopAmerican Airlines
21h 40mDUB-SEA
6/5Wed
multi-stopAmerican Airlines
24h 31mSEA-DUB
$897
5/8Wed
multi-stopIberia
19h 19mDUB-SEA
6/5Wed
multi-stopIberia
24h 31mSEA-DUB
$931
5/10Fri
multi-stopAer Lingus
19h 30mDUB-SEA
5/17Fri
nonstopAer Lingus
9h 00mSEA-DUB
$1,036
5/10Fri
nonstopAer Lingus
9h 41mDUB-SEA
5/17Fri
nonstopAer Lingus
9h 00mSEA-DUB
$1,255

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Flights to Seattle

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Ireland

Cabin classes:

$2,234
$519

Popular routes

The most searched flights to Seattle by KAYAK users.