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 April , May 2026

21 Apr - 06 May $ 1,326.00

BFI

Seattle

Air Excursions

3 STOPS

OPO

Porto

OPO

Porto

Air Excursions

3 STOPS

BFI

Seattle

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24 Apr - 06 May $ 1,331.00

BFI

Seattle

Air Excursions

3 STOPS

OPO

Porto

OPO

Porto

Air Excursions

3 STOPS

BFI

Seattle

Pick dates

21 Apr - 08 May $ 1,392.00

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

21 Apr - 01 May $ 1,604.00

BFI

Seattle

Air Excursions

3 STOPS

OPO

Porto

OPO

Porto

Air Excursions

3 STOPS

BFI

Seattle

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24 Apr - 01 May $ 1,609.00

BFI

Seattle

Air Excursions

3 STOPS

OPO

Porto

OPO

Porto

Air Excursions

3 STOPS

BFI

Seattle

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17 Apr - 01 May $ 1,647.00

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

10:45 AM - 3:05 PM
Norwegian Air Shuttle

3 Stops

23h 5m
BFI - OPO

$ 597
Kiwi

Pick dates

8:05 AM - 3:15 PM
Norwegian Air Sweden

3 Stops

26h 25m
BFI - OPO

$ 603
Kiwi

Pick dates

8:05 AM - 3:15 PM
Norwegian Air Sweden

3 Stops

26h 25m
BFI - OPO

$ 640
Kiwi

Pick dates

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.