Cheapest return flights from Chicago to Buenos Aires in January from $634

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

Return flights

19 Jan - 20 Feb Arajet
19 Jan - 19 Feb Arajet
19 Jan - 01 Feb Arajet
31 Jan - 05 Feb Spirit Airlines
21 Jan - 26 Jan Arajet
13 Jan - 20 Jan Spirit Airlines
29 Jan - 28 Feb Spirit Airlines
07 Jan - 11 Jan Spirit Airlines
21 Jan - 04 Feb Avianca

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

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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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