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Cheap flights from Seattle to Belfast from £293

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Belfast departing on 4/7. 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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Find the cheapest flights from Seattle to Belfast

Cheap return flights

These are some of the best return flight deals from Seattle to Belfast that have been recently found on momondo from popular airlines, departing in the coming months.
13:30 - 11:30SEA-BHD
14h 00m1 stop
20:20 - 11:35BHD-SEA
23h 15m1 stop
£547Finnair
Find Deal
Sun, 20 Apr - Tue, 6 May
07:10 - 21:20SEA-BFS
30h 10m2 stops
07:05 - 22:44BFS-SEA
23h 39m2 stops
Tue, 8 Apr - Tue, 15 Apr
18:10 - 21:15SEA-BHD
19h 05m1 stop
06:30 - 16:50BHD-SEA
18h 20m2 stops
£587KLM
Find Deal
Sun, 20 Apr - Tue, 6 May
07:00 - 19:10SEA-BHD
29h 10m2 stops
09:10 - 12:20BHD-SEA
34h 10m1 stop
£589British Airways
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Wed, 19 Mar - Mon, 24 Mar
07:00 - 16:35SEA-BHD
26h 35m2 stops
17:40 - 23:07BHD-SEA
36h 27m2 stops
£597British Airways
Find Deal
Wed, 19 Mar - Mon, 24 Mar
13:35 - 15:30SEA-BHD
17h 55m2 stops
06:50 - 16:00BHD-SEA
17h 10m2 stops
£664American Airlines
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Fri, 2 May - Sun, 11 May
13:35 - 14:40SEA-BHD
17h 05m2 stops
11:00 - 23:09BHD-SEA
20h 09m2 stops
£669American Airlines
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Sun, 13 Apr - Sun, 20 Apr
18:45 - 20:50SEA-BHD
18h 05m2 stops
18:50 - 16:59BHD-SEA
30h 09m2 stops
£758Aer Lingus
Find Deal
Fri, 2 May - Mon, 12 May
18:45 - 20:50SEA-BHD
18h 05m2 stops
18:00 - 16:59BHD-SEA
30h 59m2 stops
£768Aer Lingus
Find Deal
Fri, 2 May - Mon, 12 May
13:55 - 21:15SEA-BHD
23h 20m1 stop
06:30 - 11:35BHD-SEA
13h 05m1 stop
£3,950KLM
Find Deal
Fri, 20 Jun - Sun, 13 Jul

American Airlines flights from Seattle to Belfast

Our best American Airlines deals on Seattle to Belfast flight tickets
American Airlines
2 May
SEA13:35Seattle/Tacoma Intl
17h 55m
2 stops
BHD15:30Belfast City
11 May
BHD06:50Belfast City
17h 10m
2 stops
SEA16:00Seattle/Tacoma Intl
American Airlines
13 Apr
SEA13:35Seattle/Tacoma Intl
17h 05m
2 stops
BHD14:40Belfast City
20 Apr
BHD11:00Belfast City
20h 09m
2 stops
SEA23:09Seattle/Tacoma Intl
American Airlines
12 Apr
SEA13:35Seattle/Tacoma Intl
17h 30m
2 stops
BHD15:05Belfast City
19 Apr
BHD07:05Belfast City
20h 01m
2 stops
SEA19:06Seattle/Tacoma Intl

Aer Lingus flights from Seattle to Belfast

Our best Aer Lingus deals on Seattle to Belfast flight tickets
Aer Lingus
2 May
SEA18:45Seattle/Tacoma Intl
18h 05m
2 stops
BHD20:50Belfast City
12 May
BHD18:50Belfast City
30h 09m
2 stops
SEA16:59Seattle/Tacoma Intl
Aer Lingus
2 May
SEA18:45Seattle/Tacoma Intl
18h 05m
2 stops
BHD20:50Belfast City
12 May
BHD18:00Belfast City
30h 59m
2 stops
SEA16:59Seattle/Tacoma Intl
Aer Lingus
2 May
SEA18:45Seattle/Tacoma Intl
18h 05m
2 stops
BHD20:50Belfast City
10 May
BHD07:05Belfast City
17h 54m
2 stops
SEA16:59Seattle/Tacoma Intl

See travel insights to Belfast from

How to get the cheapest flight ticket from Seattle to Belfast

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Seattle/Tacoma Intl to Belfast?

British Airways is the most popular carrier operating from Seattle/Tacoma Intl to Belfast

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

£293

Fastest flight time

12h 40m

Direct flights

None

Airports in Belfast

2 airports
The best one-way flight to Belfast from Seattle in the past 72 hours is £293. The best return flight deal from Seattle to Belfast found on momondo in the last 72 hours is £547.
The fastest flight from Seattle to Belfast takes 12h 40m
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 40m 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.


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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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