Cheap Flights from Philadelphia to St. Thomas

View €416 flight on Sat, 9 Aug 2025Opens in a new window

Popular airlines from Philadelphia to St. Thomas

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Cheap flights from Philadelphia to St. Thomas (ILG-STT)

Prices were available within the past 7 days and start at €416 for one-way flights and €652 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, 9 Aug - Sat, 23 Aug
PHL
Philadelphia
STT
St. Thomas
€652 Return, found 6 days ago
€652
Return
found 6 days ago
Select American Airlines flight, departing Sat, 9 Aug from Philadelphia to St. Thomas, returning Sat, 23 Aug, priced at €652 found 6 days ago
Delta
Sat, 9 Aug - Sat, 23 Aug
PHL
Philadelphia
STT
St. Thomas
€665 Return, found 6 days ago
€665
Return
found 6 days ago
Select Delta flight, departing Sat, 9 Aug from Philadelphia to St. Thomas, returning Sat, 23 Aug, priced at €665 found 6 days ago
Delta
Sat, 9 Aug - Sat, 23 Aug
PHL
Philadelphia
STT
St. Thomas
€670 Return, found 6 days ago
€670
Return
found 6 days ago
Select Delta flight, departing Sat, 9 Aug from Philadelphia to St. Thomas, returning Sat, 23 Aug, priced at €670 found 6 days ago
United
Sat, 9 Aug - Sat, 23 Aug
PHL
Philadelphia
STT
St. Thomas
€678 Return, found 6 days ago
€678
Return
found 6 days ago
Select United flight, departing Sat, 9 Aug from Philadelphia to St. Thomas, returning Sat, 23 Aug, priced at €678 found 6 days ago
United
Sat, 9 Aug - Sat, 23 Aug
PHL
Philadelphia
STT
St. Thomas
€683 Return, found 6 days ago
€683
Return
found 6 days ago
Select United flight, departing Sat, 9 Aug from Philadelphia to St. Thomas, returning Sat, 23 Aug, priced at €683 found 6 days ago
American Airlines
Sat, 9 Aug - Sat, 23 Aug
PHL
Philadelphia
STT
St. Thomas
€716 Return, found 6 days ago
€716
Return
found 6 days ago
Select American Airlines flight, departing Sat, 9 Aug from Philadelphia to St. Thomas, returning Sat, 23 Aug, priced at €716 found 6 days ago
Delta
Sat, 9 Aug - Sat, 23 Aug
PHL
Philadelphia
STT
St. Thomas
€721 Return, found 6 days ago
€721
Return
found 6 days ago
Select Delta flight, departing Sat, 9 Aug from Philadelphia to St. Thomas, returning Sat, 23 Aug, priced at €721 found 6 days ago
American Airlines
Sat, 9 Aug - Sat, 23 Aug
PHL
Philadelphia
STT
St. Thomas
€727 Return, found 6 days ago
€727
Return
found 6 days ago
Select American Airlines flight, departing Sat, 9 Aug from Philadelphia to St. Thomas, returning Sat, 23 Aug, priced at €727 found 6 days ago

Find the cheapest month to fly from Philadelphia (PHL) to St. Thomas (STT)

September is typically the cheapest month to fly

From €135 - €333 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.