Cheapest return flights from Seattle to Cancun in January from $337

AirHint found the following cheapest return flights from Seattle (SEA) to Cancun (CUN) in January 2026 (see full year).

Return flights

10 Jan - 17 Jan Frontier Airlines
06 Jan - 13 Jan Frontier Airlines
22 Jan - 29 Jan Frontier Airlines
01 Jan - 08 Jan Frontier Airlines
22 Jan - 26 Jan Frontier Airlines
06 Jan - 11 Jan Frontier Airlines
31 Jan - 03 Feb Volaris
18 Jan - 24 Jan Frontier Airlines
03 Jan - 17 Jan Alaska Airlines
23 Jan - 28 Jan Alaska Airlines
21 Jan - 25 Jan Hawaiian Airlines
09 Jan - 06 Feb Frontier Airlines
31 Jan - 08 Feb Volaris
31 Jan - 03 Feb Delta direct
31 Jan - 08 Feb Delta direct
09 Jan - 06 Feb Aeromexico direct

Also check the deals for one-way flights from Seattle to Cancun in January.

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