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Cheap flights from Seattle (BFI) to Porto (OPO)

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How to find the cheapest flight from Seattle (BFI) to Porto (OPO)

How to find the cheapest flight from Seattle (BFI) to Porto (OPO)
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How to find the cheapest flight from Seattle (BFI) to Porto (OPO)
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How to find the cheapest flight from Seattle (BFI) to Porto (OPO)
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Cheap flights from Seattle to Porto in November , December 2025

22 Nov - 15 Dec $ 1,915.00
BFI
Seattle
Air Excursions
3 STOPS
OPO
Porto
OPO
Porto
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
29 Nov - 07 Dec $ 1,936.00
BFI
Seattle
Air Excursions
3 STOPS
OPO
Porto
OPO
Porto
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
29 Nov - 15 Dec $ 2,006.00
BFI
Seattle
Air Excursions
3 STOPS
OPO
Porto
OPO
Porto
Air Excursions
3 STOPS
BFI
Seattle
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Last minute flights from Seattle to Porto

22 Nov - 02 Dec $ 2,259.00
BFI
Seattle
Air Excursions
3 STOPS
OPO
Porto
OPO
Porto
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
22 Nov - 02 Dec $ 2,345.00
BFI
Seattle
Air Excursions
3 STOPS
OPO
Porto
OPO
Porto
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
29 Nov - 02 Dec $ 2,538.00
BFI
Seattle
Air Excursions
3 STOPS
OPO
Porto
OPO
Porto
Air Excursions
3 STOPS
BFI
Seattle
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One-way flights to Porto from Seattle

7:05 PM - 3:00 PM
Transavia France
3 Stops
37h 15m
BFI - OPO
$ 819
Kiwi
Pick dates
11:35 AM - 9:40 PM
easyJet
3 Stops
27h 50m
BFI - OPO
$ 909
Kiwi
Pick dates
11:35 AM - 6:05 PM
easyJet
3 Stops
25h 5m
BFI - OPO
$ 986
Kiwi
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How to find the cheapest flight from Seattle (BFI) to Porto (OPO)

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