Cheapest return flights from Philadelphia to St. Thomas in June from $188

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

Return flights

30 Jun - 04 Jul Frontier Airlines
16 Jun - 23 Jun Frontier Airlines
26 Jun - 30 Jun Frontier Airlines
30 Jun - 14 Jul Spirit Airlines
30 Jun - 13 Jul Spirit Airlines
26 Jun - 14 Jul Spirit Airlines
26 Jun - 13 Jul Spirit Airlines
20 Jun - 25 Jun Frontier Airlines
20 Jun - 27 Jun Frontier Airlines
30 Jun - 03 Jul Spirit Airlines
26 Jun - 04 Jul Spirit Airlines
26 Jun - 27 Jun Spirit Airlines
21 Jun - 28 Jun Spirit Airlines
20 Jun - 30 Jun Spirit Airlines
20 Jun - 04 Jul Spirit Airlines
20 Jun - 28 Jun Spirit Airlines
16 Jun - 30 Jun Spirit Airlines
20 Jun - 23 Jun Spirit Airlines
16 Jun - 04 Jul Spirit Airlines
21 Jun - 04 Jul Spirit Airlines

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

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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