Earn point on your loyalty program!arrow arc left

Cheap flights from Portland (PDX) to Buenos Aires (AEP)

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 Buenos Aires (AEP)

How to find the cheapest flight from Portland (PDX) to Buenos Aires (AEP)
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 Buenos Aires (AEP)
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 Buenos Aires (AEP)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Portland to Buenos Aires in October , November 2026

25 Oct - 19 Nov $ 1,355.00
PDX
Portland
Volaris
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Volaris
3 STOPS
PDX
Portland
Pick dates
26 Oct - 19 Nov $ 1,355.00
PDX
Portland
Volaris
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Volaris
3 STOPS
PDX
Portland
Pick dates
25 Oct - 16 Nov $ 1,510.00
PDX
Portland
LATAM Airlines
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
LATAM Airlines
2 STOPS
PDX
Portland
Pick dates

Last minute flights from Portland to Buenos Aires

25 Oct - 01 Nov $ 1,505.00
PDX
Portland
Frontier Airlines
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Frontier Airlines
3 STOPS
PDX
Portland
Pick dates
26 Oct - 01 Nov $ 1,505.00
PDX
Portland
Frontier Airlines
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Frontier Airlines
3 STOPS
PDX
Portland
Pick dates
27 Oct - 01 Nov $ 1,582.00
PDX
Portland
Frontier Airlines
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Frontier Airlines
3 STOPS
PDX
Portland
Pick dates

One-way flights to Buenos Aires from Portland

6:09 AM - 6:33 PM
Sky Airline
3 Stops
34h 31m
PDX - AEP
$ 703
Kiwi
Pick dates
12:57 PM - 10:15 AM
Aerolineas Argentinas
2 Stops
19h 23m
PDX - AEP
$ 1,202
Kiwi
Pick dates
12:57 PM - 10:15 AM
Aerolineas Argentinas
2 Stops
19h 23m
PDX - AEP
$ 1,267
Kiwi
Pick dates

How to find the cheapest flight from Portland (PDX) to Buenos Aires (AEP)

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 Buenos Aires (AEP)
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 Buenos Aires (AEP)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.