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

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Cheap flights from Seattle to Porto in September , October 2026

28 Sep - 28 Oct $ 1,633.00

BFI

Seattle

Air Excursions

3 STOPS

OPO

Porto

OPO

Porto

Air Excursions

3 STOPS

BFI

Seattle

Pick dates

28 Sep - 30 Oct $ 1,646.00

BFI

Seattle

Air Excursions

3 STOPS

OPO

Porto

OPO

Porto

Air Excursions

3 STOPS

BFI

Seattle

Pick dates

28 Sep - 28 Oct $ 1,767.00

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

28 Sep - 02 Oct $ 1,981.00

BFI

Seattle

Air Excursions

3 STOPS

OPO

Porto

OPO

Porto

Air Excursions

3 STOPS

BFI

Seattle

Pick dates

28 Sep - 02 Oct $ 2,060.00

BFI

Seattle

Air Excursions

3 STOPS

OPO

Porto

OPO

Porto

Air Excursions

3 STOPS

BFI

Seattle

Pick dates

28 Sep - 01 Oct $ 2,231.00

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

5:25 AM - 6:20 AM
Wizz Air Malta

3 Stops

42h 50m
BFI - OPO

$ 777
Kiwi

Pick dates

8:05 AM - 6:20 AM
Wizz Air Malta

3 Stops

40h 10m
BFI - OPO

$ 856
Kiwi

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2:45 PM - 11:55 PM
Air Transat

3 Stops

37h 10m
BFI - OPO

$ 887
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.