Cheapest return flights from Chicago to Mexico City in October from $383

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

Return flights

31 Oct - 15 Nov Frontier Airlines
22 Oct - 29 Oct Frontier Airlines
31 Oct - 09 Nov Frontier Airlines
23 Oct - 30 Oct Frontier Airlines
22 Oct - 25 Oct Aeromexico
21 Oct - 31 Oct Aeromexico
24 Oct - 31 Oct Frontier Airlines
27 Oct - 31 Oct Frontier Airlines
30 Oct - 09 Nov Frontier Airlines
30 Oct - 02 Nov Frontier Airlines
31 Oct - 02 Nov Frontier Airlines
27 Oct - 05 Nov Frontier Airlines
25 Oct - 01 Nov Frontier Airlines
24 Oct - 27 Oct Aeromexico
31 Oct - 25 Nov Aeromexico
28 Oct - 05 Nov Aeromexico
25 Oct - 31 Oct Volaris
29 Oct - 05 Nov Volaris
22 Oct - 27 Oct Aeromexico
20 Oct - 24 Oct Aeromexico

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

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