Alaska Airlines flights from Philadelphia (PHL) to Cyril E. King, Saint Thomas Island (STT).

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon-Fri,Sun 10:30 Philadelphia (PHL) 14:30 Cyril E. King, Saint Thomas Island (STT)
Alaska Airlines AS 4108 Non-stop Airbus A319 (319) 4:00 Effective 2026-04-07 through 2026-05-20
Codeshare flight, operated by American Airlines.(AA 2727)
Daily 08:14 Philadelphia (PHL) 12:12 Cyril E. King, Saint Thomas Island (STT)
Alaska Airlines AS 4277 Non-stop Airbus A319 (319) 3:58 Effective 2026-03-20 through 2026-04-06
Codeshare flight, operated by American Airlines.(AA 2592)
Sat 08:20 Philadelphia (PHL) 12:15 Cyril E. King, Saint Thomas Island (STT)
Alaska Airlines AS 4277 Non-stop Airbus A319 (319) 3:55 Effective 2026-04-11 through 2026-05-16
Codeshare flight, operated by American Airlines.(AA 3119)
Tue 08:39 Philadelphia (PHL) 13:46 Cyril E. King, Saint Thomas Island (STT)
Alaska Airlines AS 4297 Non-stop Airbus A319 (319) 4:07 Operates only on 2026-01-06
Codeshare flight, operated by American Airlines.(AA 2816)
Daily 08:55 Philadelphia (PHL) 13:59 Cyril E. King, Saint Thomas Island (STT)
Alaska Airlines AS 4317 Non-stop Airbus A319 (319) 4:04 Valid until 2026-01-05
Codeshare flight, operated by American Airlines.(AA 2918)
Sat 10:30 Philadelphia (PHL) 14:20 Cyril E. King, Saint Thomas Island (STT)
Alaska Airlines AS 4317 Non-stop Airbus A319 (319) 3:50 Effective 2026-07-04 through 2026-08-01
Codeshare flight, operated by American Airlines.(AA 3233)
Sat 10:30 Philadelphia (PHL) 14:20 Cyril E. King, Saint Thomas Island (STT)
Alaska Airlines AS 4478 Non-stop Airbus A319 (319) 3:50 Effective 2026-08-08 through 2026-09-05
Codeshare flight, operated by American Airlines.(AA 2880)
Sat 10:30 Philadelphia (PHL) 14:20 Cyril E. King, Saint Thomas Island (STT)
Alaska Airlines AS 6626 Non-stop Airbus A319 (319) 3:50 Effective 2026-05-23 through 2026-06-27
Codeshare flight, operated by American Airlines.(AA 2947)




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Alaska Airlines flights from Philadelphia (PHL) to Cyril E. King, Saint Thomas Island (STT).
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS4108
10:30
Philadelphia (PHL)

14:30
Cyril E. King, Saint Thomas Island (STT)
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 2727)
Duration: 4:00, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS4277
08:14
Philadelphia (PHL)

12:12
Cyril E. King, Saint Thomas Island (STT)
Effective 2026-03-20 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2592)
Duration: 3:58, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS4277
08:20
Philadelphia (PHL)

12:15
Cyril E. King, Saint Thomas Island (STT)
Effective 2026-04-11 through 2026-05-16
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 3119)
Duration: 3:55, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS4297
08:39
Philadelphia (PHL)

13:46
Cyril E. King, Saint Thomas Island (STT)
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 2816)
Duration: 4:07, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS4317
08:55
Philadelphia (PHL)

13:59
Cyril E. King, Saint Thomas Island (STT)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2918)
Duration: 4:04, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS4317
10:30
Philadelphia (PHL)

14:20
Cyril E. King, Saint Thomas Island (STT)
Effective 2026-07-04 through 2026-08-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 3233)
Duration: 3:50, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS4478
10:30
Philadelphia (PHL)

14:20
Cyril E. King, Saint Thomas Island (STT)
Effective 2026-08-08 through 2026-09-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 2880)
Duration: 3:50, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS6626
10:30
Philadelphia (PHL)

14:20
Cyril E. King, Saint Thomas Island (STT)
Effective 2026-05-23 through 2026-06-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 2947)
Duration: 3:50, non-stop
Airbus A319 (319)
  • An international route departing from Philadelphia airport, United States (PHL) and arriving at Cyril E. King, Saint Thomas Island airport, U.S. Virgin Islands (STT).
  • The flight distance is 1608 miles, or 2588 km.
  • The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-4 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
  • For direct flights, the flight time varies between 3:50 and 4:07.
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