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Cheap flights from St Louis (STL) to Buenos Aires (AEP)

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0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from St Louis (STL) to Buenos Aires (AEP)

How to find the cheapest flight from St Louis (STL) to Buenos Aires (AEP)
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How to find the cheapest flight from St Louis (STL) to Buenos Aires (AEP)
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How to find the cheapest flight from St Louis (STL) to Buenos Aires (AEP)
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Cheap flights from St Louis to Buenos Aires in November , December 2025

28 Nov - 11 Dec $ 1,152.00
STL
St Louis
Frontier Airlines
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Frontier Airlines
2 STOPS
STL
St Louis
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28 Nov - 09 Dec $ 1,165.00
STL
St Louis
Frontier Airlines
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Frontier Airlines
2 STOPS
STL
St Louis
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28 Nov - 11 Dec $ 1,212.00
STL
St Louis
Frontier Airlines
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Frontier Airlines
2 STOPS
STL
St Louis
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Last minute flights from St Louis to Buenos Aires

28 Nov - 02 Dec $ 1,380.00
STL
St Louis
Frontier Airlines
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Frontier Airlines
3 STOPS
STL
St Louis
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28 Nov - 01 Dec $ 1,475.00
STL
St Louis
Frontier Airlines
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Frontier Airlines
3 STOPS
STL
St Louis
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28 Nov - 01 Dec $ 1,535.00
STL
St Louis
Frontier Airlines
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
Frontier Airlines
3 STOPS
STL
St Louis
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One-way flights to Buenos Aires from St Louis

4:13 PM - 4:20 PM
Aerolineas Argentinas
2 Stops
24h 7m
STL - AEP
$ 550
Kiwi
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11:04 AM - 1:30 AM
LATAM Airlines
2 Stops
17h 51m
STL - AEP
$ 889
Kiwi
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9:33 AM - 1:30 AM
LATAM Airlines
2 Stops
19h 22m
STL - AEP
$ 889
Kiwi
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How to find the cheapest flight from St Louis (STL) to Buenos Aires (AEP)

Related info for your journey
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How to find the cheapest flight from St Louis (STL) 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 St Louis (STL) to Buenos Aires (AEP)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.