Cheapest return flights from Chicago to Mexico City in September from $214

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

Return flights

24 Sep - 30 Sep Viva
24 Sep - 12 Oct Viva
24 Sep - 28 Sep Viva
30 Sep - 12 Oct Viva
25 Sep - 30 Sep Viva
04 Sep - 09 Sep Viva
24 Sep - 29 Sep Viva
24 Sep - 27 Sep Viva
24 Sep - 26 Sep Viva
24 Sep - 06 Oct Viva
27 Sep - 12 Oct Viva
30 Sep - 06 Oct Viva
25 Sep - 28 Sep Viva
23 Sep - 30 Sep Viva
23 Sep - 28 Sep Viva
29 Sep - 12 Oct Viva
23 Sep - 12 Oct Viva
25 Sep - 23 Oct Viva
30 Sep - 21 Oct Viva
30 Sep - 19 Oct Viva

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

Skyscanner

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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