Cheapest return flights from Chicago to Buenos Aires in December from $1069

AirHint found the following cheapest return flights from Chicago (ORD) to Buenos Aires (EZE) in December 2025 (see full year).

Return flights

24 Dec - 14 Jan Avianca
30 Dec - 06 Jan Avianca
19 Dec - 27 Dec Delta
28 Dec - 10 Jan Key Lime Air dba Denver Air Connection
27 Dec - 01 Jan Avianca
20 Dec - 28 Dec World Ticket Ltd
27 Dec - 03 Jan LATAM Airlines Group
27 Dec - 02 Jan Arajet
28 Dec - 03 Jan LATAM Airlines Group
20 Dec - 05 Jan Spirit Airlines
19 Dec - 03 Jan LATAM Airlines Group
18 Dec - 04 Jan Frontier Airlines
21 Dec - 21 Dec Viva

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

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