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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 May , June 2026

31 May - 19 Jun $ 884.00
PDX
Portland
Alaska Airlines
2 STOPS
OPO
Porto
OPO
Porto
Alaska Airlines
3 STOPS
PDX
Portland
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31 May - 17 Jun $ 905.00
PDX
Portland
WestJet
2 STOPS
OPO
Porto
OPO
Porto
WestJet
2 STOPS
PDX
Portland
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26 May - 11 Jun $ 2,569.00
PDX
Portland
WestJet
2 STOPS
OPO
Porto
OPO
Porto
WestJet
2 STOPS
PDX
Portland
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Last minute flights from Portland to Porto

28 May - 01 Jun $ 1,161.00
PDX
Portland
Condor
2 STOPS
OPO
Porto
OPO
Porto
Condor
2 STOPS
PDX
Portland
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28 May - 01 Jun $ 1,278.00
PDX
Portland
Condor
2 STOPS
OPO
Porto
OPO
Porto
Condor
2 STOPS
PDX
Portland
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26 May - 01 Jun $ 2,327.00
PDX
Portland
Lufthansa
2 STOPS
OPO
Porto
OPO
Porto
Lufthansa
2 STOPS
PDX
Portland
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One-way flights to Porto from Portland

1:05 PM - 3:45 PM
Norwegian Air Shuttle
2 Stops
21h 25m
PDX - OPO
$ 380
Kiwi
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10:33 AM - 9:40 PM
United Airlines
1 Stops
15h 12m
PDX - OPO
$ 1,036
Kiwi
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8:50 AM - 9:40 PM
United Airlines
2 Stops
16h 55m
PDX - OPO
$ 1,036
Kiwi
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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.
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.