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

Return flights

21 Feb - 28 Feb	Spirit Airlines
07 Feb - 21 Feb	Spirit Airlines
21 Feb - 27 Feb	Spirit Airlines
16 Feb - 28 Feb	Spirit Airlines
03 Feb - 17 Feb	Frontier Airlines
10 Feb - 03 Mar	Frontier Airlines
20 Feb - 26 Feb	Spirit Airlines
13 Feb - 28 Feb	Spirit Airlines
07 Feb - 13 Feb	Spirit Airlines
07 Feb - 27 Feb	Spirit Airlines
11 Feb - 04 Mar	Frontier Airlines
04 Feb - 16 Feb	jetBlue
21 Feb - 06 Mar	Spirit Airlines
28 Feb - 06 Mar	Spirit Airlines
16 Feb - 06 Mar	Spirit Airlines
21 Feb - 09 Mar	Spirit Airlines
28 Feb - 09 Mar	Spirit Airlines

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

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Philadelphia to St. Croix Island in February from $235

Return flights