New York (JFK) to Charlotte Amalie (STT): On-Time Performance
Data through July 2026
New York (JFK) to Charlotte Amalie (STT) effectively runs on two schedules. In November 2025, 94% of arrivals were on time; in August 2024 that fell to 63% — a 31-point seasonal swing. Across the full period the route averages 80% on-time against a national 78%.
- On-time
- 80%
- arrived <15 min late
- Avg delay
- 18 min
- completed flights
- Cancelled
- 1.3%
- Flights/day
- 1.5
- last 12 months
- Duration
- 4h 3m
- scheduled
- Distance
- 1,623 mi
Best airline from JFK to STT
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| American Airlinesmost reliable | 81% | 22 min | 1.4% | 639 |
| Delta Air Lines | 79% | 12 min | 1.2% | 512 |
Monthly on-time trend
Best time to fly from JFK to STT
Aim for departures around 9 a.m. (83% on-time); avoid 7 a.m. departures (76%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 16 min |
| Tuesday | 84% | 11 min |
| Wednesday | 79% | 20 min |
| Thursday | 81% | 20 min |
| Fridaybest | 85% | 28 min |
| Saturday | 75% | 16 min |
| Sunday | 81% | 15 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft23%
- Airline operations49%
- National airspace system22%
- Weather5%
Frequently asked questions
- How often are flights from JFK to STT delayed?
- 20% of JFK–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 18 minutes.
- Which airline is most reliable from JFK to STT?
- American Airlines has the best on-time record on this route at 81%, based on 639 flights. 2 airlines flew JFK–STT frequently enough to compare in this period.
- What is the best time of day to fly from JFK to STT?
- Departures around 9 a.m. have the best record (83% on-time), while departures around 7 a.m. have the worst (76%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from JFK to STT?
- The scheduled JFK–STT flight time averages 4h 3m over 1,623 miles. Actual arrival times vary — flights on this route land 15+ minutes late 20% of the time.
- How often are JFK to STT flights cancelled?
- 1.3% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from JFK to STT?
- August 2024 was the roughest month in this dataset, with only 63% of arrivals on time. The best was November 2025 at 94%. If your dates are flexible, that 31-point gap is worth planning around.
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Based on 1,151 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.