Route Reliability
Houston → GPT
IAH–GPT · 377 miles · George Bush Intercontinental Airport to GPT Airport
- 84%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 1.5%
- Cancelled
- 1,122
- Flights in the data
Data through May 2026.
United Airlines is the only airline in this data on this route, arriving on time 84% of the time across 1,122 flights. No comparison to make.
What the data says
12–3 PM has a slight edge.
Departures between 12–3 PM arrived on time 87% of the time, against 82% between 6–9 PM.
Monday comes out ahead.
A small edge: 87% on time on Mondays against 82% on Fridays.
Slipping a little lately.
IAH–GPT flights arrived on time 83% of the time over the last three months in the data, compared with 87% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon87%(168 flights)
- Tue84%(134 flights)
- Wed82%(146 flights)
- Thu85%(175 flights)
- Fri82%(157 flights)
- Sat84%(146 flights)
- Sun84%(175 flights)
- 12–3 AM—(2 flights)
- 9 AM–12 PM84%(342 flights)
- 12–3 PM87%(357 flights)
- 6–9 PM82%(400 flights)
Jun 62% → May 81% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 62% | 103 |
| July 2025 | 82% | 103 |
| August 2025 | 87% | 98 |
| September 2025 | 93% | 88 |
| October 2025 | 93% | 103 |
| November 2025 | 85% | 100 |
| December 2025 | 87% | 87 |
| January 2026 | 82% | 82 |
| February 2026 | 92% | 76 |
| March 2026 | 86% | 85 |
| April 2026 | 83% | 82 |
| May 2026 | 81% | 94 |
Keep nerding
Based on 1,122 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.