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

Return flights

18 Jan - 30 Jan	Delta	direct
18 Jan - 02 Feb	Delta
04 Jan - 10 Jan	Delta
03 Jan - 10 Jan	Delta
24 Jan - 11 Feb	Spirit Airlines
24 Jan - 30 Jan	Spirit Airlines
01 Jan - 11 Jan	Delta
24 Jan - 02 Feb	Spirit Airlines
24 Jan - 09 Feb	Spirit Airlines
24 Jan - 12 Feb	Spirit Airlines
06 Jan - 10 Jan	Spirit Airlines
24 Jan - 13 Feb	Spirit Airlines
06 Jan - 11 Jan	Spirit Airlines
01 Jan - 10 Jan	Spirit Airlines

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

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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Cheapest return flights from Boston to Cancun in January from 274€

Return flights