SEA - BFS

$580 Find Cheap Flights from Seattle to Belfast Intl Airport

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Belfast Intl departing on 4/26. 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 Belfast Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Belfast, 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 Seattle to Belfast, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$580
Multiple Airlines
Sun 4/26Thu 4/30
SEA - BFS • 2 stops
Cheapest one-way
Multiple Airlines
Sun 2/8
SEA - BFS • multi-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Belfast Intl!
Flight Deals
Useful Info
Flight Deals

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

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

Sun, Apr 26 - Thu, Apr 30
Multiple Airlines Logo
3:40 pm - 9:50 pm
SEA
-
BFS
22h 10m
2 stops
Multiple Airlines Logo
8:10 am - 5:55 pm
BFS
-
SEA
17h 45m
2 stops
$580Multiple Airlines
Sun, Mar 8 - Sun, Mar 15
Multiple Airlines Logo
3:35 pm - 8:10 pm
SEA
-
BFS
21h 35m
2 stops
Multiple Airlines Logo
8:45 pm - 6:00 pm
BFS
-
SEA
52h 15m
2 stops
$606Multiple Airlines
Sun, Mar 8 - Sun, Mar 15
Multiple Airlines Logo
7:50 pm - 8:10 pm
SEA
-
BFS
17h 20m
1 stop
Multiple Airlines Logo
8:45 pm - 12:24 am
BFS
-
SEA
34h 39m
2 stops
$739Multiple Airlines
Sun, Apr 26 - Thu, Apr 30
Multiple Airlines Logo
3:40 pm - 9:30 pm
SEA
-
BFS
21h 50m
2 stops
Multiple Airlines Logo
6:10 am - 9:40 am
BFS
-
SEA
35h 30m
3 stops
$760Multiple Airlines
Sun, Apr 26 - Thu, Apr 30
Multiple Airlines Logo
3:40 pm - 10:35 pm
SEA
-
BFS
22h 55m
3 stops
Multiple Airlines Logo
6:10 am - 9:40 am
BFS
-
SEA
35h 30m
3 stops
$845Multiple Airlines
Sun, Mar 8 - Sun, Mar 15
Multiple Airlines Logo
7:50 pm - 8:10 pm
SEA
-
BFS
17h 20m
1 stop
Multiple Airlines Logo
8:45 pm - 5:55 pm
BFS
-
SEA
28h 10m
1 stop
$871Multiple Airlines
Sat, Mar 7 - Sat, Mar 14
Multiple Airlines Logo
2:00 pm - 10:40 pm
SEA
-
BFS
24h 40m
2 stops
Multiple Airlines Logo
6:25 am - 4:40 pm
BFS
-
SEA
17h 15m
2 stops
$1,034Multiple Airlines
Mon, Mar 23 - Mon, Mar 30
Multiple Airlines Logo
3:00 pm - 10:35 pm
SEA
-
BFS
24h 35m
3 stops
Multiple Airlines Logo
7:35 pm - 8:40 pm
BFS
-
SEA
33h 05m
3 stops
$1,048Multiple Airlines
Mon, Mar 23 - Mon, Mar 30
Multiple Airlines Logo
8:00 am - 9:40 pm
SEA
-
BFS
30h 40m
2 stops
Multiple Airlines Logo
7:35 pm - 8:40 pm
BFS
-
SEA
33h 05m
3 stops
$1,063Multiple Airlines
Fri, Apr 3 - Sun, Apr 12
Multiple Airlines Logo
8:00 am - 9:15 pm
SEA
-
BFS
29h 15m
3 stops
Multiple Airlines Logo
9:05 pm - 7:18 pm
BFS
-
SEA
30h 13m
3 stops
$1,094Multiple Airlines
Useful Info

Good to know

Cheapest flight$580
Flight from Seattle to Belfast Intl Airport

When to book flights from Seattle to Belfast Intl

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

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

    In the last 3 days, the lowest price for a flight from Seattle to Belfast Intl Airport was $580 for a round-trip ticket.

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

    Yes, you’ll need a passport to travel to Belfast Intl Airport from Seattle.

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

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

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

    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 Seattle to Belfast Intl Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast Intl Airport from 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 from Seattle to Belfast Intl Airport?

    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 Belfast Intl Airport with an airline and back to Seattle with another airline. Booking your flights between Seattle and BFS 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 Seattle to Belfast Intl Airport?

    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 Belfast Intl Airport from Seattle 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 Seattle to Belfast Intl

Information on your arrival and departure airports

Seattle (SEA)
Belfast Intl (BFS)