$374 Find Cheap Flights from Ireland to Seattle - Compare and Save

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 8/27. 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
1 adult, Economy, 0 bags

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Cheap Flights from Ireland to Seattle

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ireland 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ireland to Seattle

Thu, Aug 27 - Sat, Sep 12
Iberia Logo
9:30 am - 8:52 pm
DUB
-
SEA
19h 22m
1 stop
Iberia Logo
7:10 pm - 12:15 pm
SEA
-
DUB
9h 05mnonstop
$511Iberia
Thu, Aug 27 - Sat, Sep 12
Air Canada Logo
9:20 am - 9:07 pm
DUB
-
SEA
19h 47m
1 stop
Air Canada Logo
8:00 am - 8:15 am
SEA
-
DUB
16h 15m
1 stop
$538Air Canada
Thu, Sep 3 - Sat, Sep 19
Scandinavian Airlines Logo
7:05 pm - 1:45 pm
DUB
-
SEA
26h 40m
1 stop
Scandinavian Airlines Logo
3:55 pm - 6:25 pm
SEA
-
DUB
18h 30m
2 stops
$560Scandinavian Airlines
Thu, Sep 3 - Sat, Sep 19
Scandinavian Airlines Logo
7:50 pm - 1:45 pm
DUB
-
SEA
25h 55m
2 stops
Scandinavian Airlines Logo
3:55 pm - 6:25 pm
SEA
-
DUB
18h 30m
2 stops
$565Scandinavian Airlines
Fri, Sep 25 - Sun, Oct 4
Scandinavian Airlines Logo
7:05 pm - 1:45 pm
DUB
-
SEA
26h 40m
1 stop
Scandinavian Airlines Logo
3:55 pm - 6:20 pm
SEA
-
DUB
18h 25m
1 stop
$580Scandinavian Airlines
Sat, Sep 19 - Sat, Sep 26
Scandinavian Airlines Logo
7:05 pm - 1:45 pm
DUB
-
SEA
26h 40m
1 stop
Scandinavian Airlines Logo
3:55 pm - 6:20 pm
SEA
-
DUB
18h 25m
1 stop
$582Scandinavian Airlines
Sat, Sep 19 - Fri, Sep 25
Scandinavian Airlines Logo
7:05 pm - 1:45 pm
DUB
-
SEA
26h 40m
1 stop
Scandinavian Airlines Logo
3:55 pm - 6:20 pm
SEA
-
DUB
18h 25m
1 stop
$583Scandinavian Airlines
Fri, Sep 4 - Fri, Sep 11
Scandinavian Airlines Logo
7:05 pm - 1:45 pm
DUB
-
SEA
26h 40m
1 stop
Scandinavian Airlines Logo
3:55 pm - 6:20 pm
SEA
-
DUB
18h 25m
1 stop
$584Scandinavian Airlines
Tue, Sep 8 - Tue, Sep 15
Aer Lingus Logo
3:25 pm - 5:10 pm
DUB
-
SEA
9h 45mnonstop
Aer Lingus Logo
7:10 pm - 12:15 pm
SEA
-
DUB
9h 05mnonstop
$777Aer Lingus
Fri, Aug 28 - Sat, Sep 12
Aer Lingus Logo
3:25 pm - 5:10 pm
DUB
-
SEA
9h 45mnonstop
Aer Lingus Logo
7:10 pm - 12:15 pm
SEA
-
DUB
9h 05mnonstop
$784Aer Lingus
Booking Insights

KAYAK's insights & trends for flights to Seattle

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 round-trip 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 round-trip tickets can be as cheap as $615. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $1,226 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 round-trip 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 November, where tickets cost $559 on average for return flights. On the other hand, the most expensive months are July and August, where the average cost of tickets from Ireland is $1,041 and $1,037 respectively. For one-way flights, the best month to travel is March with an average price of $601.

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

The average price for all round-trip 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 evening, when round-trip flights cost $719 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 $719.

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 $780 round-trip.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 2 weeks before departure, which saves you about 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low season

January

Cheapest flight

$374
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Dublin to Seattle

FAQs - booking Seattle flights

  • How far is Seattle/Tacoma Intl Airport from central Seattle?

    Central Seattle is 11 miles away from Seattle/Tacoma Intl Airport.

  • What is the name of Seattle’s airport?

    There is only 1 airport in Seattle, called Seattle/Tacoma Intl Airport (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 $935. The cheapest price found on KAYAK in the last 2 weeks cost $645 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.

Top tips for finding cheap flights to Seattle

  • Looking for cheap airfare to Seattle? 25% of our users found round-trip tickets to Seattle for the following prices or less: From Dublin $748
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Seattle flight deals.

Everything you need to know for your flight to Seattle

Information on the airport you'll fly into in Seattle