Cheapest return flights from Philadelphia to St. Croix Island in April from $222

AirHint found the following cheapest return flights from Philadelphia (PHL) to St. Croix Island (STX) in April 2026 (see full year).

Return flights

18 Apr - 27 Apr Spirit Airlines
18 Apr - 24 Apr Spirit Airlines
24 Apr - 27 Apr Spirit Airlines
24 Apr - 09 May Spirit Airlines
27 Apr - 09 May Spirit Airlines
27 Apr - 15 May Spirit Airlines
06 Apr - 18 Apr Spirit Airlines
06 Apr - 24 Apr Spirit Airlines
03 Apr - 18 Apr Spirit Airlines
01 Apr - 07 Apr jetBlue
03 Apr - 06 Apr Spirit Airlines
03 Apr - 04 Apr Spirit Airlines

Also check the deals for one-way flights from Philadelphia to St. Croix Island in April.

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