Charlotte Amalie (STT) to New York (JFK): On-Time Performance
Data through July 2026
The calendar drives reliability on STT–JFK. May 2025 flights landed on schedule 90% of the time, but July 2024 dropped to 50% — a gap of 40 points. Across the full period the route averages 78% on-time against a national 78%.
- On-time
- 78%
- arrived <15 min late
- Avg delay
- 23 min
- completed flights
- Cancelled
- 1.9%
- Flights/day
- 1.5
- last 12 months
- Duration
- 4h 24m
- scheduled
- Distance
- 1,623 mi
Best airline from STT to JFK
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Linesmost reliable | 80% | 12 min | 2.3% | 512 |
| American Airlines | 77% | 32 min | 1.6% | 639 |
Monthly on-time trend
Best time to fly from STT to JFK
Aim for departures around 2 p.m. (85% on-time); avoid 1 p.m. departures (74%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 74% | 23 min |
| Tuesdaybest | 84% | 16 min |
| Wednesday | 81% | 18 min |
| Thursday | 78% | 26 min |
| Friday | 82% | 10 min |
| Saturday | 71% | 37 min |
| Sunday | 77% | 30 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 operations47%
- National airspace system9%
- Weather1%
Frequently asked questions
- How often are flights from STT to JFK delayed?
- 22% of STT–JFK 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 23 minutes.
- Which airline is most reliable from STT to JFK?
- Delta Air Lines has the best on-time record on this route at 80%, based on 512 flights. 2 airlines flew STT–JFK frequently enough to compare in this period.
- What is the best time of day to fly from STT to JFK?
- Departures around 2 p.m. have the best record (85% on-time), while departures around 1 p.m. have the worst (74%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from STT to JFK?
- The scheduled STT–JFK flight time averages 4h 24m over 1,623 miles. Actual arrival times vary — flights on this route land 15+ minutes late 22% of the time.
- How often are STT to JFK flights cancelled?
- 1.9% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from STT to JFK?
- July 2024 was the roughest month in this dataset, with only 50% of arrivals on time. The best was May 2025 at 90%. If your dates are flexible, that 40-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.