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Cheap flights from Portland (PDX) to Porto (OPO)

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0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Portland (PDX) to Porto (OPO)

How to find the cheapest flight from Portland (PDX) to Porto (OPO)
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How to find the cheapest flight from Portland (PDX) to Porto (OPO)
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How to find the cheapest flight from Portland (PDX) to Porto (OPO)
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Cheap flights from Portland to Porto in October , November 2026

23 Oct - 06 Nov $ 894.00
PDX
Portland
United Airlines
1 STOPS
OPO
Porto
OPO
Porto
United Airlines
1 STOPS
PDX
Portland
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20 Oct - 01 Nov $ 1,647.00
PDX
Portland
Air Canada
2 STOPS
OPO
Porto
OPO
Porto
Air Canada
2 STOPS
PDX
Portland
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26 Oct - 08 Nov $ 1,971.00
PDX
Portland
Air Canada
2 STOPS
OPO
Porto
OPO
Porto
Air Canada
2 STOPS
PDX
Portland
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Last minute flights from Portland to Porto

24 Oct - 01 Nov $ 1,040.00
PDX
Portland
Swiss International Air Lines
2 STOPS
OPO
Porto
OPO
Porto
Swiss International Air Lines
2 STOPS
PDX
Portland
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24 Oct - 01 Nov $ 1,040.00
PDX
Portland
Swiss International Air Lines
2 STOPS
OPO
Porto
OPO
Porto
Swiss International Air Lines
2 STOPS
PDX
Portland
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24 Oct - 31 Oct $ 1,509.00
PDX
Portland
United Airlines
1 STOPS
OPO
Porto
OPO
Porto
United Airlines
1 STOPS
PDX
Portland
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One-way flights to Porto from Portland

8:40 AM - 9:50 PM
United Airlines
2 Stops
17h 5m
PDX - OPO
$ 493
Kiwi
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10:58 AM - 9:50 PM
United Airlines
1 Stops
14h 47m
PDX - OPO
$ 499
Kiwi
Pick dates
10:58 AM - 9:50 PM
United Airlines
1 Stops
14h 47m
PDX - OPO
$ 499
Kiwi
Pick dates

How to find the cheapest flight from Portland (PDX) to Porto (OPO)

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