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

Return flights

05 Mar - 18 Mar	Viva
16 Mar - 18 Mar	Viva
05 Mar - 13 Mar	Viva
19 Mar - 20 Mar	Viva
05 Mar - 20 Mar	Viva
16 Mar - 20 Mar	Viva
23 Mar - 10 Apr	Viva
30 Mar - 10 Apr	Viva
21 Mar - 10 Apr	Viva
19 Mar - 25 Mar	Viva
05 Mar - 25 Mar	Viva
24 Mar - 10 Apr	Viva
16 Mar - 25 Mar	Viva
05 Mar - 08 Mar	Viva
16 Mar - 01 Apr	Viva
19 Mar - 01 Apr	Viva
23 Mar - 01 Apr	Viva
30 Mar - 01 Apr	Viva
21 Mar - 01 Apr	Viva
26 Mar - 10 Apr	Viva

Also check the deals for one-way flights from Chicago to Cancun 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 Cancun in March from $269

Return flights