Cheapest return flights from Chicago to Buenos Aires in March from $1142

Best time to book flights for Chicago (MDW) to Buenos Aires (AEP) flights at AirHint

AirHint found the following cheapest return flights from Chicago (MDW) to Buenos Aires (AEP) in March 2025 (see full year).

Return flights

18 Mar - 30 Mar LATAM Airlines Group
12 Mar - 26 Mar LATAM Airlines Group
07 Mar - 16 Mar LATAM Airlines Group
20 Mar - 30 Mar LATAM Airlines Group
07 Mar - 15 Mar LATAM Airlines Group
07 Mar - 14 Mar LATAM Airlines Group
14 Mar - 22 Mar LATAM Airlines Group
15 Mar - 23 Mar LATAM Airlines Group
14 Mar - 23 Mar LATAM Airlines Group
15 Mar - 22 Mar Frontier Airlines

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

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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