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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 May , June 2026

27 May - 16 Jun $ 1,515.00
BFI
Seattle
Air Excursions
3 STOPS
BFS
Belfast
BFS
Belfast
Air Excursions
3 STOPS
BFI
Seattle
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27 May - 16 Jun $ 1,560.00
BFI
Seattle
Air Excursions
3 STOPS
BFS
Belfast
BFS
Belfast
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
31 May - 16 Jun $ 1,596.00
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

27 May - 01 Jun $ 1,955.00
BFI
Seattle
Air Excursions
3 STOPS
BFS
Belfast
BFS
Belfast
Air Excursions
3 STOPS
BFI
Seattle
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27 May - 01 Jun $ 2,000.00
BFI
Seattle
Air Excursions
3 STOPS
BFS
Belfast
BFS
Belfast
Air Excursions
3 STOPS
BFI
Seattle
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27 May - 01 Jun $ 2,001.00
BFI
Seattle
Air Excursions
3 STOPS
BFS
Belfast
BFS
Belfast
Air Excursions
3 STOPS
BFI
Seattle
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One-way flights to Belfast from Seattle

5:25 AM - 2:10 PM
easyJet
3 Stops
25h 35m
BFI - BFS
$ 753
Kiwi
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5:25 AM - 2:05 PM
Aer Lingus
3 Stops
25h 35m
BFI - BFS
$ 756
Kiwi
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8:05 AM - 2:10 PM
easyJet
3 Stops
22h 55m
BFI - BFS
$ 799
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.