AirHint found the following cheapest return flights from Chicago (MDW) to Mexico City (MEX) in March 2026 (see full year).

Return flights

06 Mar - 09 Mar	Aeromexico
01 Mar - 06 Mar	Aeromexico
04 Mar - 07 Mar	Aeromexico
03 Mar - 17 Mar	Aeromexico
14 Mar - 18 Mar	Aeromexico
06 Mar - 17 Mar	Aeromexico
15 Mar - 20 Mar	Aeromexico
17 Mar - 24 Mar	Aeromexico
11 Mar - 17 Mar	Aeromexico
05 Mar - 09 Mar	Aeromexico
31 Mar - 09 Apr	Aeromexico
22 Mar - 07 Apr	Aeromexico
28 Mar - 06 Apr	Aeromexico
29 Mar - 05 Apr	Aeromexico
28 Mar - 11 Apr	Aeromexico
27 Mar - 05 Apr	Frontier Airlines
28 Mar - 02 Apr	Frontier Airlines
04 Mar - 08 Apr	Delta
31 Mar - 04 Apr	Aeromexico
23 Mar - 04 Apr	Aeromexico

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

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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Cheapest return flights from Chicago to Mexico City in March from $366

Return flights