Route Reliability
Houston → Charlotte Amalie
IAH–STT · 2,070 miles · George Bush Intercontinental Airport to Cyril E. King Airport
- 82%
- Arrive within 15 minutes
- 4 min early
- Average arrival delay
- 1.7%
- Cancelled
- 173
- Flights in the data
Data through May 2026.
United Airlines is the only airline in this data on this route, arriving on time 82% of the time across 173 flights. No comparison to make.
What the data says
The 9 AM–12 PM departure wins.
IAH–STT flights departing between 9 AM–12 PM arrived on time 90% of the time, versus 65% between 6–9 AM.
Friday is doing you no favors.
IAH–STT flights arrived on time 95% of the time on Mondays and just 75% on Fridays. That gap is worth planning around.
Recent months have been rougher.
IAH–STT flights arrived on time 76% of the time over the last three months in the data, compared with 89% in the three months before that.
The breakdown
- Mon95%(19 flights)
- Tue78%(18 flights)
- Wed83%(18 flights)
- Thu75%(20 flights)
- Fri75%(20 flights)
- Sat87%(45 flights)
- Sun80%(30 flights)
- 6–9 AM65%(52 flights)
- 9 AM–12 PM90%(118 flights)
Jun 87% → May 94% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 87% | 30 |
| July 2025 | 81% | 31 |
| August 2025 | 100% | 16 |
| November 2025 | 100% | 10 |
| March 2026 | 33% | 24 |
| May 2026 | 94% | 31 |
Keep nerding
Based on 173 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.