Cheapest return flights from Chicago to Mexico City in September from $213

Best time to book flights for Chicago (ORD) to Mexico City (MEX) flights at AirHint

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

Return flights

24 Sep - 27 Sep Viva Aerobus
10 Sep - 24 Sep Viva Aerobus
10 Sep - 27 Sep Viva Aerobus
24 Sep - 05 Oct Viva Aerobus
06 Sep - 24 Sep Viva Aerobus
06 Sep - 27 Sep Viva Aerobus
23 Sep - 24 Sep Viva Aerobus
23 Sep - 27 Sep Viva Aerobus
22 Sep - 24 Sep Viva Aerobus
22 Sep - 27 Sep Viva Aerobus
27 Sep - 05 Oct Viva Aerobus
23 Sep - 05 Oct Viva Aerobus
22 Sep - 05 Oct Viva Aerobus
19 Sep - 24 Sep Viva Aerobus
19 Sep - 05 Oct Viva Aerobus
21 Sep - 05 Oct Viva Aerobus
25 Sep - 05 Oct Viva Aerobus
24 Sep - 06 Oct Viva Aerobus
24 Sep - 07 Oct Viva Aerobus
24 Sep - 03 Oct Viva Aerobus

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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