AirHint found the following cheapest return flights from Chicago (ORD) to Cancun (CUN) in December 2026 (see full year).
Return flights
| 10 Dec - 14 Dec | United | ||
| 12 Dec - 18 Dec | Air Canada | ||
| 16 Dec - 21 Dec | Air Canada | ||
| 26 Dec - 02 Jan | Air Canada | ||
| 28 Dec - 04 Jan | Air Canada |
Also check the deals for one-way flights from Chicago to Cancun in December.
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