Earn point on your loyalty program!arrow arc left

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

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

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

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.
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.

Cheap flights from Portland to Porto in November , December 2025

29 Nov - 14 Dec $ 647.00
PDX
Portland
Icelandair
2 STOPS
OPO
Porto
OPO
Porto
Icelandair
2 STOPS
PDX
Portland
Pick dates
29 Nov - 14 Dec $ 747.00
PDX
Portland
Icelandair
2 STOPS
OPO
Porto
OPO
Porto
Icelandair
2 STOPS
PDX
Portland
Pick dates
29 Nov - 07 Dec $ 990.00
PDX
Portland
Icelandair
2 STOPS
OPO
Porto
OPO
Porto
Icelandair
2 STOPS
PDX
Portland
Pick dates

Last minute flights from Portland to Porto

23 Nov - 02 Dec $ 1,431.00
PDX
Portland
WestJet
2 STOPS
OPO
Porto
OPO
Porto
WestJet
3 STOPS
PDX
Portland
Pick dates
23 Nov - 01 Dec $ 1,539.00
PDX
Portland
WestJet
2 STOPS
OPO
Porto
OPO
Porto
WestJet
3 STOPS
PDX
Portland
Pick dates
23 Nov - 01 Dec $ 1,621.00
PDX
Portland
WestJet
2 STOPS
OPO
Porto
OPO
Porto
WestJet
3 STOPS
PDX
Portland
Pick dates

One-way flights to Porto from Portland

10:37 AM - 3:00 PM
Transavia France
2 Stops
21h 43m
PDX - OPO
$ 493
Kiwi
Pick dates
5:00 AM - 9:45 PM
United Airlines
2 Stops
20h 30m
PDX - OPO
$ 968
Kiwi
Pick dates
10:52 AM - 9:45 PM
United Airlines
2 Stops
14h 38m
PDX - OPO
$ 1,058
Kiwi
Pick dates

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

Related info for your journey
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.
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.