Atlanta (ATL) to Charlotte Amalie (STT): On-Time Performance
Data through July 2026
When you fly ATL to STT matters as much as anything else about the booking: the route swung from 94% on-time in October 2024 to just 63% in December 2024. Across the full period the route averages 75% on-time against a national 78%.
- On-time
- 75%
- arrived <15 min late
- Avg delay
- 14 min
- completed flights
- Cancelled
- 0.8%
- Flights/day
- 2.0
- last 12 months
- Duration
- 3h 37m
- scheduled
- Distance
- 1,599 mi
Monthly on-time trend
Best time to fly from ATL to STT
Aim for departures around 9 a.m. (81% on-time); avoid 11 a.m. departures (73%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 73% | 16 min |
| Tuesdaybest | 84% | 7 min |
| Wednesday | 78% | 11 min |
| Thursday | 79% | 9 min |
| Friday | 82% | 11 min |
| Saturday | 63% | 20 min |
| Sunday | 69% | 18 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft10%
- Airline operations40%
- National airspace system44%
- Weather6%
Frequently asked questions
- How often are flights from ATL to STT delayed?
- 25% of ATL–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 14 minutes.
- What is the best time of day to fly from ATL to STT?
- Departures around 9 a.m. have the best record (81% on-time), while departures around 11 a.m. have the worst (73%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ATL to STT?
- The scheduled ATL–STT flight time averages 3h 37m over 1,599 miles. Actual arrival times vary — flights on this route land 15+ minutes late 25% of the time.
- How often are ATL to STT flights cancelled?
- 0.8% 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 ATL to STT?
- December 2024 was the roughest month in this dataset, with only 63% of arrivals on time. The best was October 2024 at 94%. If your dates are flexible, that 32-point gap is worth planning around.
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Based on 1,432 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.