Cheapest return flights from Chicago to Buenos Aires in January from $1084

AirHint found the following cheapest return flights from Chicago (MDW) to Buenos Aires (AEP) in January 2026 (see full year).

Return flights

20 Jan - 31 Jan LATAM Airlines Group
31 Jan - 28 Feb LATAM Airlines Group
07 Jan - 11 Jan Frontier Airlines
17 Jan - 24 Jan LATAM Airlines Group
10 Jan - 20 Jan LATAM Airlines Group
04 Jan - 18 Jan LATAM Airlines Group
18 Jan - 24 Jan LATAM Airlines Group
19 Jan - 25 Jan LATAM Airlines Group
06 Jan - 11 Jan LATAM Airlines Group
24 Jan - 26 Jan Frontier Airlines
14 Jan - 28 Jan Frontier Airlines
24 Jan - 06 Feb Frontier Airlines

Also check the deals for one-way flights from Chicago to Buenos Aires in January.

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