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

Return flights

12 May - 27 May	Viva
12 May - 28 May	Viva
10 May - 27 May	Viva
10 May - 28 May	Viva
12 May - 23 May	Viva
10 May - 23 May	Viva
07 May - 23 May	Viva
07 May - 27 May	Viva
07 May - 28 May	Viva
02 May - 09 May	Avianca
24 May - 01 Jun	Avianca
31 May - 03 Jun	Viva
30 May - 03 Jun	Viva
31 May - 04 Jun	Viva
21 May - 03 Jun	Viva
14 May - 03 Jun	Viva
19 May - 03 Jun	Viva
30 May - 04 Jun	Viva
19 May - 03 Jun	Viva	direct
14 May - 04 Jun	Viva

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

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 Mexico City to Chicago in May from 203€

Return flights