Cheapest return flights from Cancun to Keflavik in December from $1161

AirHint found the following cheapest return flights from Cancun (CUN) to Keflavik (KEF) in December 2025 (see full year).

Return flights

23 Dec - 28 Dec jetBlue
27 Dec - 08 Jan Frontier Airlines
27 Dec - 02 Jan Frontier Airlines

Also check the deals for one-way flights from Cancun to Keflavik in December.

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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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