Philadelphia to U.S. Virgin Islands Low Fare Flights with Spirit from $135*
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Philadelphia (PHL)to
St. Thomas (STT)Depart 05/15/2026
Fares From
$141
Viewed 8 hours ago
One Way
Economy
Philadelphia (PHL)to
Saint Croix (STX)Depart 05/03/2026
Fares From
$135
Viewed 1 day ago
One Way
Economy
*One-way fares displayed have been collected within the last 48 hours and may no longer be available at the time of booking. Additional baggage fees and fees for other services may apply. Other terms and conditions may apply.
Tickets for Trending Cheap Flights on Spirit Airlines
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From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Philadelphia (PHL) | St. Thomas (STT) | One Way / Economy | Depart 08/26/2026 | Fares From $151 Viewed 13 hours ago |
| Philadelphia (PHL) | Saint Croix (STX) | One Way / Economy | Depart 05/21/2026 | Fares From $210 Viewed 1 day ago |
**Lowest Fare Guaranteed for fares on Spirit.com and the Spirit Airlines mobile app, for the same flight, on the same day and at the same time, at time of booking, and when SAVER$ CLUB fare is offered along with a standard public fare. Must be a SAVER$ CLUB member. Seats are limited. Additional terms and conditions apply. For general terms and conditions visit Saver$ Club Terms and Conditions*Fares presented below are available at the beginning of each day, but may sell out. Additional baggage fees and fees for other services may apply. Other terms and conditions may apply.