Earn point on your loyalty program!arrow arc left

Cheap flights from Seattle (BFI) 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 Seattle (BFI) to Buenos Aires (AEP)

How to find the cheapest flight from Seattle (BFI) 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 Seattle (BFI) 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 Seattle (BFI) 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 Seattle to Buenos Aires in April , May 2026

27 Apr - 14 May $ 1,785.00
BFI
Seattle
Air Excursions
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
27 Apr - 11 May $ 1,832.00
BFI
Seattle
Air Excursions
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
27 Apr - 28 May $ 1,836.00
BFI
Seattle
Air Excursions
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Air Excursions
3 STOPS
BFI
Seattle
Pick dates

One-way flights to Buenos Aires from Seattle

6:55 AM - 11:47 AM
LATAM Airlines
3 Stops
27h 55m
BFI - AEP
$ 787
Kiwi
Pick dates
6:55 AM - 9:30 AM
LATAM Airlines
3 Stops
29h 5m
BFI - AEP
$ 849
Kiwi
Pick dates
6:55 AM - 9:15 AM
Aerolineas Argentinas
3 Stops
25h 25m
BFI - AEP
$ 933
Kiwi
Pick dates

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