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

Return flights

04 Mar - 11 Mar	Delta
10 Mar - 17 Mar	Delta
10 Mar - 09 Apr	Delta
05 Mar - 08 Mar	Frontier Airlines
01 Mar - 07 Mar	Delta
24 Mar - 31 Mar	Delta
18 Mar - 25 Mar	Delta
06 Mar - 09 Mar	Frontier Airlines
24 Mar - 26 Mar	Delta
29 Mar - 01 Apr	Delta
11 Mar - 07 Apr	Frontier Airlines
09 Mar - 14 Mar	Frontier Airlines
11 Mar - 13 Apr	Frontier Airlines
31 Mar - 06 Apr	Frontier Airlines
28 Mar - 03 Apr	Frontier Airlines
29 Mar - 06 Apr	Frontier Airlines
30 Mar - 07 Apr	Delta
26 Mar - 01 Apr	Delta
11 Mar - 08 Apr	Delta

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 367€

Return flights