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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 September , October 2026

30 Sep - 13 Oct $ 1,364.00
PDX
Portland
United Airlines
1 STOPS
OPO
Porto
OPO
Porto
United Airlines
1 STOPS
PDX
Portland
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27 Sep - 05 Oct $ 1,594.00
PDX
Portland
Air Canada
2 STOPS
OPO
Porto
OPO
Porto
Air Canada
2 STOPS
PDX
Portland
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28 Sep - 07 Oct $ 6,228.00
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

28 Sep - 01 Oct $ 1,419.00
PDX
Portland
Air Canada
3 STOPS
OPO
Porto
OPO
Porto
Air Canada
3 STOPS
PDX
Portland
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27 Sep - 01 Oct $ 1,596.00
PDX
Portland
Air Canada
2 STOPS
OPO
Porto
OPO
Porto
Air Canada
2 STOPS
PDX
Portland
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28 Sep - 30 Sep $ 6,355.00
PDX
Portland
Air Canada
2 STOPS
OPO
Porto
OPO
Porto
Air Canada
2 STOPS
PDX
Portland
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One-way flights to Porto from Portland

7:02 AM - 7:20 PM
United Airlines
2 Stops
15h 58m
PDX - OPO
$ 566
Kiwi
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7:02 AM - 9:45 AM
Swiss International Air Lines
2 Stops
20h 23m
PDX - OPO
$ 606
Kiwi
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10:58 AM - 9:50 PM
United Airlines
1 Stops
14h 47m
PDX - OPO
$ 683
Kiwi
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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.