AirHint found the following cheapest return flights from Keflavik (KEF) to Cancun (CUN) in January 2026 (see full year).
Return flights
| 08 Jan - 21 Jan | easyJet | ||
| 11 Jan - 20 Jan | easyJet | ||
| 02 Jan - 16 Jan | Icelandair | ||
| 03 Jan - 16 Jan | Icelandair |
Also check the deals for one-way flights from Keflavik to Cancun in January.
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