Cheapest return flights from Philadelphia to St. Thomas in July from 148€

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

Return flights

17 Jul - 21 Jul Frontier Airlines
20 Jul - 25 Jul Frontier Airlines
19 Jul - 29 Jul Spirit Airlines
28 Jul - 01 Aug Frontier Airlines
19 Jul - 26 Jul Spirit Airlines
22 Jul - 29 Jul Spirit Airlines
19 Jul - 22 Jul Spirit Airlines
19 Jul - 25 Jul Spirit Airlines
19 Jul - 01 Aug Spirit Airlines
19 Jul - 24 Jul Spirit Airlines
22 Jul - 12 Aug Spirit Airlines
19 Jul - 06 Aug Spirit Airlines
22 Jul - 26 Jul Spirit Airlines
14 Jul - 29 Jul Spirit Airlines
22 Jul - 01 Aug Spirit Airlines
22 Jul - 06 Aug Spirit Airlines
28 Jul - 12 Aug Spirit Airlines
19 Jul - 03 Aug Spirit Airlines
14 Jul - 01 Aug Spirit Airlines
15 Jul - 01 Aug Spirit Airlines

Also check the deals for one-way flights from Philadelphia to St. Thomas 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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