Charlotte Amalie (STT) to Houston (IAH): On-Time Performance
Data through July 2026
Charlotte Amalie (STT) to Houston (IAH) is a thinner route than most in this dataset — 173 departures over the past year, roughly 3 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 82% arrived on time.
- On-time
- 82%
- arrived <15 min late
- Avg delay
- 10 min
- completed flights
- Cancelled
- 1.7%
- Flights/day
- 0.47
- last 12 months
- Duration
- 5h 11m
- scheduled
- Distance
- 2,070 mi
Monthly on-time trend
Best time to fly from STT to IAH
Aim for departures around 3 p.m. (86% on-time); avoid 2 p.m. departures (76%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 69% | 15 min |
| Tuesday | 83% | 6 min |
| Wednesday | 77% | 14 min |
| Thursday | 84% | 14 min |
| Friday | 87% | 8 min |
| Saturday | 83% | 10 min |
| Sundaybest | 88% | 6 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft43%
- Airline operations17%
- National airspace system41%
Frequently asked questions
- How often are flights from STT to IAH delayed?
- 18% of STT–IAH 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 10 minutes.
- What is the best time of day to fly from STT to IAH?
- Departures around 3 p.m. have the best record (86% on-time), while departures around 2 p.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 STT to IAH?
- The scheduled STT–IAH flight time averages 5h 11m over 2,070 miles. Actual arrival times vary — flights on this route land 15+ minutes late 18% of the time.
- How often are STT to IAH flights cancelled?
- 1.7% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What day of the week is most reliable for STT to IAH?
- Sunday flights have the best record at 88% on-time. Day-of-week differences on this route are meaningful — Monday trails at 69%.
Explore related pages
More routes from STT
Other ways to fly to Houston (IAH)
Related guides
Based on 345 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.