BFS - SEA

$585 Find Cheap Flights from Belfast Intl Airport 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 Intl to Seattle departing on 2/19. 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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Everything you should know

Cheapest round-trip
$585
Multiple Airlines
Thu 2/19Thu 2/26
BFS - SEA • 2 stops
Cheapest one-way
Multiple Airlines
Mon 1/5
BFS - SEA • multi-stop
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We hope you love your trip to Seattle!
Flight Deals
Useful Info
Flight Deals

Cheap Flights from Belfast Intl to Seattle (BFS-SEA)

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

Thu, Feb 19 - Thu, Feb 26
Multiple Airlines Logo
6:30 am - 5:00 pm
BFS
-
SEA
18h 30m2 stops
Multiple Airlines Logo
2:35 pm - 8:40 pm
SEA
-
BFS
22h 05m2 stops
$585Multiple Airlines
Tue, Feb 17 - Tue, Feb 24
Multiple Airlines Logo
8:35 am - 5:00 pm
BFS
-
SEA
16h 25m2 stops
Multiple Airlines Logo
2:35 pm - 5:55 pm
SEA
-
BFS
19h 20m2 stops
$741Multiple Airlines
Thu, Feb 19 - Thu, Feb 26
Multiple Airlines Logo
9:05 pm - 7:16 pm
BFS
-
SEA
30h 11m3 stops
Multiple Airlines Logo
2:00 pm - 8:25 pm
SEA
-
BFS
22h 25m2 stops
$744Multiple Airlines
Mon, Apr 13 - Sat, May 9
Multiple Airlines Logo
6:40 am - 5:55 pm
BFS
-
SEA
19h 15m2 stops
Multiple Airlines Logo
3:40 pm - 8:50 pm
SEA
-
BFS
21h 10m2 stops
$806Multiple Airlines
Tue, Feb 17 - Tue, Feb 24
Multiple Airlines Logo
10:35 am - 1:20 pm
BFS
-
SEA
34h 45m2 stops
Multiple Airlines Logo
9:55 am - 10:35 pm
SEA
-
BFS
28h 40m3 stops
$861Multiple Airlines
Thu, Feb 19 - Thu, Feb 26
Multiple Airlines Logo
9:25 pm - 7:16 pm
BFS
-
SEA
29h 51m3 stops
Multiple Airlines Logo
2:35 pm - 9:05 pm
SEA
-
BFS
22h 30m3 stops
$1,025Multiple Airlines
Tue, Feb 17 - Tue, Feb 24
Multiple Airlines Logo
8:55 pm - 5:00 pm
BFS
-
SEA
28h 05m3 stops
Multiple Airlines Logo
2:35 pm - 8:15 pm
SEA
-
BFS
21h 40m3 stops
$1,237Multiple Airlines
Useful Info

Good to know

Cheapest flight$585
Flight from Belfast Intl Airport to Seattle

When to book flights from Belfast Intl to Seattle

Are your dates flexible? Find out the best times to travel from Belfast Intl 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 Belfast Intl Airport to Seattle flights

  • What is the cheapest flight from Belfast Intl Airport to Seattle?

    In the last 3 days, the lowest price for a flight from Belfast Intl Airport to Seattle was $585 for a round-trip ticket.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in Belfast Intl Airport and on arrival in Seattle.

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

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

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Belfast Intl Airport 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 Intl Airport 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 Intl Airport with another airline. Booking your flights between Belfast Intl Airport and SEA can sometimes prove cheaper using this method.

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

Information on your arrival and departure airports

Belfast Intl Airport (BFS)
Seattle (SEA)