AirHint found the following cheapest return flights from Philadelphia (PHL) to Cancun (CUN) in May 2026 (see full year).
Return flights
| 12 May - 12 May | American Airlines | direct | |
| 06 May - 10 May | Delta | ||
| 28 May - 01 Jun | Delta | ||
| 29 May - 31 May | Air Canada | ||
| 22 May - 24 May | Air Canada |
Also check the deals for one-way flights from Philadelphia to Cancun in May.
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