Earn point on your loyalty program!arrow arc left

Cheap flights from Helena (HLN) 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 Helena (HLN) to Buenos Aires (AEP)

How to find the cheapest flight from Helena (HLN) 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 Helena (HLN) 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 Helena (HLN) 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 Helena to Buenos Aires in March , April 2026

23 Mar - 21 Apr $ 1,299.00
HLN
Helena
Hawaiian Airlines
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Hawaiian Airlines
3 STOPS
HLN
Helena
Pick dates
23 Mar - 21 Apr $ 1,321.00
HLN
Helena
Hawaiian Airlines
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Hawaiian Airlines
3 STOPS
HLN
Helena
Pick dates
24 Mar - 21 Apr $ 1,332.00
HLN
Helena
Hawaiian Airlines
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Hawaiian Airlines
3 STOPS
HLN
Helena
Pick dates

Last minute flights from Helena to Buenos Aires

23 Mar - 02 Apr $ 1,741.00
HLN
Helena
Alaska Airlines
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Alaska Airlines
3 STOPS
HLN
Helena
Pick dates
23 Mar - 02 Apr $ 1,763.00
HLN
Helena
Alaska Airlines
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Alaska Airlines
3 STOPS
HLN
Helena
Pick dates
24 Mar - 02 Apr $ 1,773.00
HLN
Helena
Alaska Airlines
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Alaska Airlines
3 STOPS
HLN
Helena
Pick dates

One-way flights to Buenos Aires from Helena

6:22 PM - 8:23 AM
LATAM Airlines
3 Stops
37h 8m
HLN - AEP
$ 695
Kiwi
Pick dates
6:22 PM - 1:30 AM
LATAM Airlines
3 Stops
34h 33m
HLN - AEP
$ 717
Kiwi
Pick dates
6:22 PM - 1:30 AM
LATAM Airlines
3 Stops
34h 33m
HLN - AEP
$ 728
Kiwi
Pick dates

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