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

Return flights

22 Jan - 27 Jan	Delta
13 Jan - 16 Jan	Delta	direct
10 Jan - 14 Jan	Delta
28 Jan - 04 Feb	Delta
27 Jan - 03 Feb	Delta
10 Jan - 18 Jan	Delta
23 Jan - 26 Jan	Delta
09 Jan - 12 Jan	Southwest Airlines
21 Jan - 28 Jan	Spirit Airlines
10 Jan - 27 Jan	Spirit Airlines
10 Jan - 28 Jan	Spirit Airlines
10 Jan - 21 Jan	Spirit Airlines
30 Jan - 02 Feb	Aeromexico
21 Jan - 05 Feb	Spirit Airlines
28 Jan - 05 Feb	Spirit Airlines
21 Jan - 02 Feb	Spirit Airlines
13 Jan - 02 Feb	Spirit Airlines
28 Jan - 02 Feb	Spirit Airlines
30 Jan - 05 Feb	Spirit Airlines
23 Jan - 05 Feb	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 265€

Return flights