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

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0 Children (2~11)
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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 April , May 2026

30 Apr - 07 May $ 849.00
PDX
Portland
KLM Royal Dutch Airlines
2 STOPS
OPO
Porto
OPO
Porto
KLM Royal Dutch Airlines
2 STOPS
PDX
Portland
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17 Apr - 07 May $ 1,837.00
PDX
Portland
Swiss International Air Lines
2 STOPS
OPO
Porto
OPO
Porto
Swiss International Air Lines
2 STOPS
PDX
Portland
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17 Apr - 05 May $ 1,853.00
PDX
Portland
Swiss International Air Lines
2 STOPS
OPO
Porto
OPO
Porto
Swiss International Air Lines
2 STOPS
PDX
Portland
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Last minute flights from Portland to Porto

16 Apr - 30 Apr $ 1,008.00
PDX
Portland
United Airlines
2 STOPS
OPO
Porto
OPO
Porto
United Airlines
2 STOPS
PDX
Portland
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16 Apr - 30 Apr $ 1,017.00
PDX
Portland
United Airlines
2 STOPS
OPO
Porto
OPO
Porto
United Airlines
1 STOPS
PDX
Portland
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16 Apr - 30 Apr $ 1,017.00
PDX
Portland
United Airlines
2 STOPS
OPO
Porto
OPO
Porto
United Airlines
1 STOPS
PDX
Portland
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One-way flights to Porto from Portland

1:05 PM - 3:15 PM
Norwegian Air Sweden
2 Stops
21h 25m
PDX - OPO
$ 329
Kiwi
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8:05 AM - 9:45 PM
United Airlines
2 Stops
17h 40m
PDX - OPO
$ 679
Kiwi
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5:00 AM - 9:45 PM
United Airlines
2 Stops
20h 45m
PDX - OPO
$ 679
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)
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.