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Cheap flights from Seattle (BFI) to Belfast (BFS)

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How to find the cheapest flight from Seattle (BFI) to Belfast (BFS)

How to find the cheapest flight from Seattle (BFI) to Belfast (BFS)
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How to find the cheapest flight from Seattle (BFI) to Belfast (BFS)
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How to find the cheapest flight from Seattle (BFI) to Belfast (BFS)
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Cheap flights from Seattle to Belfast in August , September 2026

30 Aug - 30 Sep $ 1,617.00
BFI
Seattle
Air Excursions
3 STOPS
BFS
Belfast
BFS
Belfast
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
30 Aug - 30 Sep $ 1,625.00
BFI
Seattle
Air Excursions
3 STOPS
BFS
Belfast
BFS
Belfast
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
30 Aug - 10 Sep $ 1,718.00
BFI
Seattle
Air Excursions
3 STOPS
BFS
Belfast
BFS
Belfast
Air Excursions
3 STOPS
BFI
Seattle
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Last minute flights from Seattle to Belfast

28 Aug - 01 Sep $ 1,764.00
BFI
Seattle
Air Excursions
3 STOPS
BFS
Belfast
BFS
Belfast
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
26 Aug - 01 Sep $ 1,950.00
BFI
Seattle
Air Excursions
2 STOPS
BFS
Belfast
BFS
Belfast
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
27 Aug - 01 Sep $ 1,971.00
BFI
Seattle
Air Excursions
2 STOPS
BFS
Belfast
BFS
Belfast
Air Excursions
3 STOPS
BFI
Seattle
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One-way flights to Belfast from Seattle

3:05 PM - 6:00 AM
easyJet
3 Stops
31h 40m
BFI - BFS
$ 746
Kiwi
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3:05 PM - 8:15 PM
easyJet
3 Stops
21h 55m
BFI - BFS
$ 772
Kiwi
Pick dates
3:05 PM - 6:05 PM
easyJet
3 Stops
19h 45m
BFI - BFS
$ 779
Kiwi
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How to find the cheapest flight from Seattle (BFI) to Belfast (BFS)

Related info for your journey
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How to find the cheapest flight from Seattle (BFI) to Belfast (BFS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Seattle (BFI) to Belfast (BFS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.