AirHint found the following cheapest return flights from Philadelphia (PHL) to St. Croix Island (STX) in April 2026 (see full year).
Return flights
| 01 Apr - 07 Apr | Delta | ||
| 03 Apr - 06 Apr | Spirit Airlines | ||
| 02 Apr - 11 Apr | Frontier Airlines | ||
| 04 Apr - 12 Apr | Frontier Airlines |
Also check the deals for one-way flights from Philadelphia to St. Croix Island in April.
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