AirHint found the following cheapest return flights from Chicago (ORD) to Merida (MID) in December 2025 (see full year).

Return flights

16 Dec - 19 Dec	United
16 Dec - 20 Dec	United
08 Dec - 15 Dec	Viva
08 Dec - 20 Dec	Viva
30 Dec - 09 Jan	Aeromexico
10 Dec - 20 Dec	Viva
08 Dec - 25 Dec	Viva
08 Dec - 19 Dec	Viva
10 Dec - 25 Dec	Viva
10 Dec - 19 Dec	Viva
30 Dec - 11 Jan	Viva
08 Dec - 27 Dec	Viva
30 Dec - 13 Jan	Viva
26 Dec - 11 Jan	Viva
26 Dec - 13 Jan	Viva
30 Dec - 01 Jan	Viva
26 Dec - 09 Jan	Viva
30 Dec - 06 Jan	Viva
21 Dec - 11 Jan	Viva
26 Dec - 04 Jan	Frontier Airlines

Also check the deals for one-way flights from Chicago to Merida in December.

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 Merida in December from $456

Return flights