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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 August , September 2026

24 Aug - 03 Sep $ 1,086.00
PDX
Portland
United Airlines
1 STOPS
OPO
Porto
OPO
Porto
United Airlines
1 STOPS
PDX
Portland
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17 Aug - 11 Sep $ 1,863.00
PDX
Portland
Air Canada
2 STOPS
OPO
Porto
OPO
Porto
Air Canada
2 STOPS
PDX
Portland
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25 Aug - 10 Sep $ 1,977.00
PDX
Portland
Air Canada
1 STOPS
OPO
Porto
OPO
Porto
Air Canada
2 STOPS
PDX
Portland
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Last minute flights from Portland to Porto

18 Aug - 02 Sep $ 1,098.00
PDX
Portland
WestJet
2 STOPS
OPO
Porto
OPO
Porto
WestJet
3 STOPS
PDX
Portland
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18 Aug - 02 Sep $ 1,100.00
PDX
Portland
WestJet
2 STOPS
OPO
Porto
OPO
Porto
WestJet
3 STOPS
PDX
Portland
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26 Aug - 02 Sep $ 1,147.00
PDX
Portland
WestJet
2 STOPS
OPO
Porto
OPO
Porto
WestJet
3 STOPS
PDX
Portland
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One-way flights to Porto from Portland

7:40 AM - 3:25 PM
Transavia France
2 Stops
25h 5m
PDX - OPO
$ 514
Kiwi
Pick dates
11:15 AM - 9:40 PM
United Airlines
1 Stops
14h 30m
PDX - OPO
$ 701
Kiwi
Pick dates
11:15 AM - 9:40 PM
United Airlines
1 Stops
14h 30m
PDX - OPO
$ 701
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.