$760 Find Cheap Flights from Belfast to Seattle

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Belfast to Seattle departing on 12/9. 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

KAYAK searches 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 in flight searches from Belfast to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to Seattle, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Belfast to Seattle

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Belfast 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 Belfast to Seattle

Tue, Dec 9 - Sun, Jan 11
Multiple Airlines Logo
7:20 am - 5:00 pmBHD-SEA
17h 40m2 stops
Multiple Airlines Logo
2:35 pm - 8:30 pmSEA-BHD
21h 55m2 stops
$760Multiple Airlines
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Mon, Dec 1 - Mon, Dec 8
British Airways Logo
7:25 pm - 11:30 amBHD-SEA
24h 05m1 stop
British Airways Logo
6:50 pm - 6:35 pmSEA-BHD
15h 45m1 stop
$827British Airways
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Mon, Dec 1 - Mon, Dec 8
Multiple Airlines Logo
5:45 pm - 11:30 amBHD-SEA
25h 45m1 stop
Multiple Airlines Logo
11:22 am - 2:15 pmSEA-BHD
18h 53m2 stops
$834Multiple Airlines
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Thu, Mar 5 - Mon, Mar 9
American Airlines Logo
3:05 pm - 11:30 amBHD-SEA
28h 25m1 stop
American Airlines Logo
7:00 am - 6:35 pmSEA-BHD
28h 35m2 stops
$861American Airlines
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Thu, Mar 5 - Mon, Mar 9
American Airlines Logo
10:40 am - 11:32 pmBHD-SEA
20h 52m2 stops
American Airlines Logo
7:00 am - 10:40 amSEA-BHD
20h 40m2 stops
$866American Airlines
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Thu, Mar 5 - Mon, Mar 9
American Airlines Logo
9:05 am - 11:32 pmBHD-SEA
22h 27m2 stops
American Airlines Logo
7:00 am - 6:35 pmSEA-BHD
28h 35m2 stops
$867American Airlines
Find Deal
Tue, Dec 9 - Sun, Jan 11
British Airways Logo
10:00 am - 11:25 pmBHD-SEA
21h 25m2 stops
British Airways Logo
6:50 pm - 4:50 pmSEA-BHD
14h 00m1 stop
$885British Airways
Find Deal
Tue, Dec 9 - Sun, Jan 11
Delta Logo
6:30 am - 11:50 amBHD-SEA
13h 20m1 stop
Delta Logo
3:10 pm - 4:50 pmSEA-BHD
17h 40m1 stop
$895Delta
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Mon, Dec 1 - Mon, Dec 8
Multiple Airlines Logo
10:20 pm - 7:53 pmBFS-SEA
29h 33m2 stops
Multiple Airlines Logo
7:20 pm - 8:20 pmSEA-BFS
17h 00m1 stop
$990Multiple Airlines
Find Deal
Sat, Jan 3 - Thu, Jan 8
Virgin Atlantic Logo
5:20 pm - 4:33 pmBHD-SEA
31h 13m2 stops
Virgin Atlantic Logo
7:59 pm - 4:50 pmSEA-BHD
36h 51m2 stops
$6,183Virgin Atlantic
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Everything you should know

Cheapest round-trip
$760
Multiple Airlines
Tue 12/9Sun 1/11
BHD - SEA • 2 stops
Cheapest one-way
Multiple Airlines
Mon 11/3
BF1 - SEA • multi-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Booking Insights

KAYAK's insights & trends for Belfast to Seattle flights

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

Which airlines provide the cheapest flights from Belfast to Seattle?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Belfast to Seattle were found on British Airways ($827) and American Airlines ($861).

Find deals

Good to know

Cheapest flight$760
Flight from Belfast City Airport to Seattle

When to book flights from Belfast to Seattle

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

FAQs for booking flights from Belfast to Seattle

  • What is the cheapest flight from Belfast to Seattle?

    In the last 3 days, the lowest price for a flight from Belfast to Seattle was $760 for a round-trip ticket.

  • Do I need a passport to fly between Belfast and Seattle?

    Yes

  • Which airports will I be using when flying from Belfast to Seattle?

    There are 2 airports in Belfast (Belfast Intl and Belfast City.) and only 1 airport in Seattle (Seattle/Tacoma Intl). The cheapest flights are generally found on the Belfast City Airport to Seattle/Tacoma Intl flight route.

  • Which aircraft models fly most regularly from Belfast to Seattle?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Belfast 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 from Belfast to Seattle.

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

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

  • What is the Hacker Fare option on flights from Belfast 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 to Belfast with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Belfast 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 from Belfast up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Belfast to Seattle

Information on your arrival and departure airports

Seattle (SEA)

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