Cheapest return flights from Philadelphia to St. Thomas in April from 252€

AirHint found the following cheapest return flights from Philadelphia (PHL) to St. Thomas (STT) in April 2026 (see full year).

Return flights

08 Apr - 14 Apr Spirit Airlines
25 Apr - 28 Apr Spirit Airlines
22 Apr - 25 Apr Spirit Airlines
24 Apr - 27 Apr Spirit Airlines
24 Apr - 28 Apr Spirit Airlines
26 Apr - 28 Apr Frontier Airlines
07 Apr - 28 Apr Spirit Airlines
07 Apr - 27 Apr Spirit Airlines
13 Apr - 28 Apr Spirit Airlines
10 Apr - 28 Apr Spirit Airlines
30 Apr - 20 May Spirit Airlines
22 Apr - 13 May Spirit Airlines
30 Apr - 13 May Spirit Airlines
22 Apr - 10 May Spirit Airlines
30 Apr - 10 May Spirit Airlines
26 Apr - 13 May Spirit Airlines
26 Apr - 10 May Spirit Airlines
24 Apr - 13 May Spirit Airlines
24 Apr - 10 May Spirit Airlines
30 Apr - 04 May Spirit Airlines

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

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