AirHint found the following cheapest return flights from San Juan (SJU) to Cancun (CUN) in January 2026 (see full year).
Return flights
| 27 Jan - 03 Feb | Copa | ||
| 21 Jan - 28 Jan | Copa | ||
| 20 Jan - 28 Jan | Copa | ||
| 22 Jan - 28 Jan | Copa | ||
| 23 Jan - 28 Jan | Copa |
Also check the deals for one-way flights from San Juan to Cancun in January.
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