Cheapest return flights from Philadelphia to St. Croix Island in July from $169

AirHint found the following cheapest return flights from Philadelphia (PHL) to St. Croix Island (STX) in July 2025 (see full year).

Return flights

13 Jul - 17 Jul Frontier Airlines
16 Jul - 20 Jul Frontier Airlines
09 Jul - 13 Jul Frontier Airlines
19 Jul - 25 Jul Frontier Airlines
28 Jul - 31 Jul Spirit Airlines
28 Jul - 30 Jul Spirit Airlines
28 Jul - 06 Aug Spirit Airlines
29 Jul - 19 Aug Spirit Airlines
30 Jul - 20 Aug Spirit Airlines
29 Jul - 16 Aug Spirit Airlines
22 Jul - 12 Aug Spirit Airlines
22 Jul - 05 Aug Spirit Airlines
23 Jul - 06 Aug Spirit Airlines
22 Jul - 15 Aug Spirit Airlines
23 Jul - 12 Aug Spirit Airlines
22 Jul - 25 Jul Spirit Airlines
26 Jul - 29 Jul Spirit Airlines
19 Jul - 22 Jul Spirit Airlines
23 Jul - 28 Jul Spirit Airlines

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

Skyscanner

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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