AirHint found the following cheapest one-way flights from Boston (BOS) to Cancun (CUN) in October 2025 (see full year).

One-Way flights

14 Oct	Aeromexico
08 Oct	Aeromexico
13 Oct	Aeromexico
13 Oct	jetBlue	direct
14 Oct	jetBlue	direct
18 Oct	jetBlue	direct
27 Oct	Delta
20 Oct	Spirit Airlines
22 Oct	Spirit Airlines
16 Oct	Spirit Airlines

Also check the deals for return flights from Boston to Cancun in October.

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 one-way flights from Boston to Cancun in October from $138

One-Way flights