Philadelphia (PHL) to Charlotte Amalie (STT): On-Time Performance
Data through July 2026
Philadelphia (PHL) to Charlotte Amalie (STT) is a thinner route than most in this dataset — 187 departures over the past year, roughly 4 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 76% arrived on time.
- On-time
- 76%
- arrived <15 min late
- Avg delay
- 15 min
- completed flights
- Cancelled
- 1.2%
- Flights/day
- 0.51
- last 12 months
- Duration
- 3h 59m
- scheduled
- Distance
- 1,605 mi
Monthly on-time trend
Best time to fly from PHL to STT
Aim for departures around 8 a.m. (78% on-time); avoid 9 a.m. departures (63%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 83% | 20 min |
| Tuesday | 75% | 14 min |
| Wednesday | 83% | 19 min |
| Thursday | 68% | 17 min |
| Fridaybest | 91% | 6 min |
| Saturday | 69% | 16 min |
| Sunday | 78% | 14 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft44%
- Airline operations21%
- National airspace system32%
- Weather3%
Frequently asked questions
- How often are flights from PHL to STT delayed?
- 24% of PHL–STT flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 15 minutes.
- What is the best time of day to fly from PHL to STT?
- Departures around 8 a.m. have the best record (78% on-time), while departures around 9 a.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from PHL to STT?
- The scheduled PHL–STT flight time averages 3h 59m over 1,605 miles. Actual arrival times vary — flights on this route land 15+ minutes late 24% of the time.
- How often are PHL to STT flights cancelled?
- 1.2% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What day of the week is most reliable for PHL to STT?
- Friday flights have the best record at 91% on-time. Day-of-week differences on this route are meaningful — Thursday trails at 68%.
Explore related pages
More routes from PHL
Other ways to fly to Charlotte Amalie (STT)
Related guides
Based on 341 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.