AirHint found the following cheapest return flights from Boston (BOS) to Cancun (CUN) in May 2026 (see full year).
Return flights
| 04 May - 11 May | Aeromexico | ||
| 16 May - 19 May | United | ||
| 07 May - 10 May | Aeromexico | ||
| 16 May - 23 May | Aeromexico | ||
| 04 May - 11 May | Delta | direct |
Also check the deals for one-way flights from Boston to Cancun in May.
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