Cheapest one-way flights from Chicago to Mexico City in December from 101€

AirHint found the following cheapest one-way flights from Chicago (MDW) to Mexico City (MEX) in December 2025 (see full year).

One-Way flights

08 Dec Frontier Airlines
05 Dec Frontier Airlines
01 Dec Frontier Airlines
11 Dec Frontier Airlines
12 Dec Frontier Airlines
02 Dec Frontier Airlines
30 Dec Frontier Airlines
26 Dec Frontier Airlines
27 Dec Frontier Airlines
28 Dec Frontier Airlines

Also check the deals for return flights from Chicago to Mexico City in December.

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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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