Cheapest return flights from Boston to Cancun in December from $310

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

Return flights

17 Dec - 22 Dec jetBlue
15 Dec - 21 Dec American Airlines
15 Dec - 17 Jan Spirit Airlines
16 Dec - 21 Dec United
17 Dec - 22 Dec jetBlue direct
10 Dec - 14 Dec United
12 Dec - 15 Dec American Airlines
31 Dec - 10 Jan Aeromexico
29 Dec - 01 Jan Frontier Airlines
15 Dec - 23 Dec Spirit Airlines
15 Dec - 24 Dec Spirit Airlines
15 Dec - 25 Dec Spirit Airlines
08 Dec - 15 Dec Spirit Airlines
31 Dec - 06 Jan Aeromexico
30 Dec - 06 Jan Aeromexico
30 Dec - 16 Jan Spirit Airlines
30 Dec - 17 Jan Spirit Airlines
21 Dec - 06 Jan Frontier Airlines
30 Dec - 14 Jan Spirit Airlines
30 Dec - 07 Jan Spirit Airlines

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

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