Cheapest one-way flights from Philadelphia to St. Thomas in April from $94

Best time to book flights for Philadelphia (PHL) to St. Thomas (STT) flights at AirHint

AirHint found the following cheapest one-way flights from Philadelphia (PHL) to St. Thomas (STT) in April 2025 (see full year).

One-Way flights

28 Apr Frontier Airlines
30 Apr Spirit Airlines
24 Apr Spirit Airlines
13 Apr Spirit Airlines
29 Apr Spirit Airlines
12 Apr Spirit Airlines
29 Apr American Airlines direct
12 Apr American Airlines direct

Also check the deals for return flights from Philadelphia to St. Thomas in April.

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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