SEA - BHD

£599 Find Cheap Flights from Seattle to Belfast

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Belfast City departing on 30/4. 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.
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KAYAK searches hundreds of travel sites at once for deals on flights to Belfast City 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
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Cheap Flight Deals from Seattle to Belfast (SEA-BHD)

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

Recent return flight deals from Seattle to Belfast City

KAYAK's recommended return flight deals from the most popular airlines that fly from Seattle to Belfast City.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
British Airways Logo
20:20 - 18:40SEA-BHD
14h 20m1 stop
British Airways Logo
18:30 - 11:10BHD-SEA
24h 40m1 stop
£599British Airways
Find Deal
Wed, 30 Apr - Mon, 12 May
British Airways Logo
20:20 - 19:15SEA-BHD
14h 55m1 stop
British Airways Logo
19:30 - 11:10BHD-SEA
23h 40m1 stop
£608British Airways
Find Deal
Sat, 3 May - Mon, 12 May
American Airlines Logo
13:35 - 15:30SEA-BHD
17h 55m2 stops
American Airlines Logo
15:50 - 11:35BHD-SEA
27h 45m1 stop
£628American Airlines
Find Deal
Fri, 2 May - Sun, 11 May
American Airlines Logo
13:35 - 15:30SEA-BHD
17h 55m2 stops
American Airlines Logo
06:50 - 16:00BHD-SEA
17h 10m2 stops
£632American Airlines
Find Deal
Fri, 2 May - Sun, 11 May
Delta Logo
09:25 - 21:15SEA-BHD
27h 50m2 stops
Delta Logo
17:25 - 11:40BHD-SEA
26h 15m1 stop
£680Delta
Find Deal
Sun, 4 May - Mon, 12 May
Delta Logo
18:10 - 21:15SEA-BHD
19h 05m1 stop
Delta Logo
17:25 - 18:50BHD-SEA
33h 25m2 stops
£683Delta
Find Deal
Wed, 30 Apr - Mon, 12 May
Aer Lingus Logo
18:45 - 19:55SEA-BHD
17h 10m2 stops
Aer Lingus Logo
18:15 - 16:59BHD-SEA
30h 44m2 stops
£745Aer Lingus
Find Deal
Tue, 15 Jul - Tue, 22 Jul
KLM Logo
14:10 - 21:15SEA-BHD
23h 05m1 stop
KLM Logo
06:30 - 16:08BHD-SEA
17h 38m2 stops
£747KLM
Find Deal
Thu, 1 May - Mon, 12 May
Aer Lingus Logo
18:45 - 18:15SEA-BHD
15h 30m2 stops
Aer Lingus Logo
18:00 - 16:59BHD-SEA
30h 59m2 stops
£783Aer Lingus
Find Deal
Fri, 2 May - Mon, 12 May
KLM Logo
18:35 - 21:15SEA-BHD
18h 40m2 stops
KLM Logo
06:30 - 16:44BHD-SEA
18h 14m2 stops
£862KLM
Find Deal
Thu, 1 May - Sun, 11 May

KAYAK's insights & trends for Seattle to Belfast City flights

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

Which airlines provide the cheapest flights from Seattle to Belfast?

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 return tickets from Seattle to Belfast were found on British Airways (£599) and American Airlines (£628).

Good to know - Cheap tickets from Seattle to Belfast

Cheapest flight

£599
Flight from Seattle to Belfast

When to book flights from Seattle to Belfast City

Are your dates flexible? Find out the best times to travel from Seattle to Belfast City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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 flights

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

    In the last 3 days, the lowest price for a flight from Seattle to Belfast City Airport was £984 for a one-way ticket and £774 for a return.

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

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

  • Which airline alliances offer flights from Seattle to Belfast?

    oneworld, and SkyTeam are the airline alliances operating flights between Seattle and Belfast, with oneworld being the most commonly used for this route.

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

    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.

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

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

  • What is the Hacker Fare option on flights from Seattle to Belfast?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Belfast with an airline and back to Seattle with another airline.

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

    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 from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

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

Information on your arrival and departure airports

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