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

Return flights

03 Mar - 04 Mar	Viva
03 Mar - 18 Mar	Viva
03 Mar - 09 Mar	Viva
05 Mar - 18 Mar	Viva
05 Mar - 09 Mar	Viva
09 Mar - 18 Mar	Viva
09 Mar - 09 Mar	Viva
10 Mar - 18 Mar	Viva
13 Mar - 18 Mar	Viva
01 Mar - 04 Mar	Viva
31 Mar - 19 Apr	Viva
24 Mar - 13 Apr	Viva
25 Mar - 13 Apr	Viva
30 Mar - 19 Apr	Viva
29 Mar - 18 Apr	Viva
31 Mar - 18 Apr	Viva
25 Mar - 14 Apr	Viva	direct
30 Mar - 18 Apr	Viva
29 Mar - 19 Apr	Viva
29 Mar - 15 Apr	Viva

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 183€

Return flights