Cheapest return flights from Chicago to Mexico City in December from 363€

AirHint found the following cheapest return flights from Chicago (MDW) to Mexico City (MEX) in December 2025 (see full year).

Return flights

05 Dec - 10 Dec Frontier Airlines
08 Dec - 12 Dec Frontier Airlines
05 Dec - 07 Dec Frontier Airlines
31 Dec - 13 Jan Frontier Airlines
14 Dec - 17 Jan Frontier Airlines
12 Dec - 14 Dec Frontier Airlines
12 Dec - 13 Jan Frontier Airlines
26 Dec - 08 Jan Frontier Airlines
01 Dec - 15 Dec Frontier Airlines
15 Dec - 17 Dec Frontier Airlines
05 Dec - 09 Dec Aeromexico
18 Dec - 09 Jan Frontier Airlines
05 Dec - 13 Dec Frontier Airlines
24 Dec - 28 Dec Frontier Airlines
27 Dec - 30 Dec Frontier Airlines
14 Dec - 03 Jan Frontier Airlines
24 Dec - 01 Jan Frontier Airlines
26 Dec - 04 Jan Frontier Airlines
25 Dec - 05 Jan Frontier Airlines
23 Dec - 02 Jan Frontier Airlines

Also check the deals for one-way flights from Chicago to Mexico City in December.

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