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Cheap flights from Seattle to Belfast from £542

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Belfast departing on 28/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Cheap return flights

British Airways Logo
19:50 - 18:40SEA-BHD
15h 50m1 stop
British Airways Logo
08:40 - 16:55BHD-SEA
16h 15m1 stop
£542British Airways
Find Deal
Tue, 28 Oct - Tue, 4 Nov
American Airlines Logo
15:13 - 14:55SEA-BHD
16h 42m2 stops
American Airlines Logo
11:30 - 16:55BHD-SEA
13h 25m1 stop
£546American Airlines
Find Deal
Tue, 28 Oct - Tue, 4 Nov
American Airlines Logo
13:29 - 14:55SEA-BHD
18h 26m2 stops
American Airlines Logo
09:55 - 23:15BHD-SEA
21h 20m2 stops
£553American Airlines
Find Deal
Tue, 28 Oct - Tue, 4 Nov
 Logo
15:45 - 15:30SEA-BFS
15h 45m2 stops
 Logo
05:45 - 09:21BFS-SEA
35h 36m3 stops
Sat, 2 Aug - Sat, 9 Aug
 Logo
15:45 - 20:05SEA-BFS
20h 20m2 stops
 Logo
06:05 - 20:40BFS-SEA
22h 35m2 stops
Fri, 1 Aug - Fri, 8 Aug
 Logo
15:45 - 15:30SEA-BFS
15h 45m2 stops
 Logo
05:45 - 18:55BFS-SEA
21h 10m2 stops
Sat, 2 Aug - Sat, 9 Aug
 Logo
15:45 - 22:35SEA-BFS
22h 50m3 stops
 Logo
08:35 - 09:21BFS-SEA
32h 46m3 stops
Fri, 1 Aug - Fri, 8 Aug
 Logo
19:00 - 21:10SEA-BFS
18h 10m2 stops
 Logo
08:35 - 09:21BFS-SEA
32h 46m3 stops
Fri, 1 Aug - Fri, 8 Aug
 Logo
15:45 - 23:30SEA-BFS
23h 45m3 stops
 Logo
06:00 - 13:06BFS-SEA
39h 06m3 stops
Thu, 17 Jul - Thu, 24 Jul
British Airways Logo
13:30 - 11:10SEA-BHD
13h 40m1 stop
British Airways Logo
06:35 - 11:35BHD-SEA
13h 00m1 stop
£820British Airways
Find Deal
Thu, 17 Jul - Thu, 24 Jul

British Airways flights from Seattle to Belfast

Our best British Airways deals on Seattle to Belfast flight tickets
British Airways
28 Oct
SEA19:50Seattle/Tacoma Intl
15h 50m
1 stop
BHD18:40Belfast City
4 Nov
BHD08:40Belfast City
16h 15m
1 stop
SEA16:55Seattle/Tacoma Intl
British Airways
17 Jul
SEA13:30Seattle/Tacoma Intl
13h 40m
1 stop
BHD11:10Belfast City
24 Jul
BHD06:35Belfast City
13h 00m
1 stop
SEA11:35Seattle/Tacoma Intl
British Airways
17 Jul
SEA07:49Seattle/Tacoma Intl
17h 31m
2 stops
BHD09:20Belfast City
24 Jul
BHD19:25Belfast City
24h 10m
1 stop
SEA11:35Seattle/Tacoma Intl

American Airlines flights from Seattle to Belfast

Our best American Airlines deals on Seattle to Belfast flight tickets
American Airlines
28 Oct
SEA15:13Seattle/Tacoma Intl
16h 42m
2 stops
BHD14:55Belfast City
4 Nov
BHD11:30Belfast City
13h 25m
1 stop
SEA16:55Seattle/Tacoma Intl
American Airlines
28 Oct
SEA13:29Seattle/Tacoma Intl
18h 26m
2 stops
BHD14:55Belfast City
4 Nov
BHD09:55Belfast City
21h 20m
2 stops
SEA23:15Seattle/Tacoma Intl

Cheap Seattle to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Belfast

Best price found

£542

Fastest flight time

12h 55m

Direct flights

None

Airports in Belfast

2 airports
The best flight deal from Seattle to Belfast found on momondo in the last 72 hours is £542
The fastest flight from Seattle to Belfast takes 12h 55m
There are no direct flights from Seattle to Belfast. Popular non-direct routes for this connection are Seattle/Tacoma Intl Airport - Belfast Intl Airport and Seattle/Tacoma Intl Airport - Belfast City Airport.
There are 2 airports near Belfast: Belfast Intl (BFS), Belfast City (BHD)

  • How far is Seattle/Tacoma Intl to Belfast by plane?

    Seattle/Tacoma Intl and Belfast are 4463.0 mi apart from one another. 12h 55m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Belfast?

    Prices for flights from Seattle/Tacoma Intl Airport to Belfast are refreshed on a daily basis.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Belfast?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The travel and health documents you'll need for your trip to Belfast may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belfast. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.


  • How do I get Price Alerts for flights from Seattle to Belfast?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Seattle from Belfast. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Seattle to Belfast with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.


Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Belfast?

Finding the right flight to Belfast from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Belfast quick and easy, saving you time and money.

Can I find flights from Seattle to Belfast with flexible booking policies on momondo?

Flights from Seattle to Belfast with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seattle to Belfast?

momondo provides multiple filters to help you find the best flight to Belfast from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Seattle to Belfast right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Belfast, momondo offers a useful price alert feature which will track prices for flights to Belfast from Seattle and alert you when they change.


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1 adult
Tue 24/6
Tue 1/7

Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast