AirHint found the following cheapest return flights from Buffalo (BUF) to Cancun (CUN) in May 2026 (see full year).
Return flights
| 20 May - 27 May | Delta | ||
| 14 May - 19 May | United | ||
| 21 May - 26 May | United | ||
| 22 May - 26 May | United | ||
| 21 May - 25 May | Delta |
Also check the deals for one-way flights from Buffalo to Cancun in May.
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