AirHint found the following cheapest return flights from Louisville (SDF) to Cancun (CUN) in April 2026 (see full year).
Return flights
| 10 Apr - 18 Apr | Allegiant Air | ||
| 12 Apr - 15 Apr | Allegiant Air | ||
| 02 Apr - 07 Apr | Allegiant Air | ||
| 23 Apr - 28 Apr | Southwest Airlines | ||
| 04 Apr - 08 Apr | Allegiant Air | ||
| 04 Apr - 09 Apr | Allegiant Air |
Also check the deals for one-way flights from Louisville to Cancun in April.
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