Flight Reliability
UA 4272 · United Airlines
Houston → GPT (IAH–GPT)
89
Pretty Reliable
WanderNerd Reliability Score
- 84%
- Arrive within 15 minutes
- 2 min
- Average arrival delay
- 0.8%
- Cancelled
- 11 min early
- Median arrival delay
Based on 357 historical flights. Data through May 2026.
What the data says
12–3 PM has a slight edge.
Departures between 12–3 PM arrived on time 88% of the time, against 84% between 9 AM–12 PM.
Sunday scaries are real for this one.
UA 4272 arrived on time 88% of the time on Thursdays. On Sundays: 77%.
A bit ahead of the United Airlines network.
UA 4272 arrived on time 84% of the time, versus 79% across the United Airlines network.
Recent months have been rougher.
UA 4272 arrived on time 77% of the time over the last three months in the data, compared with 86% in the three months before that.
The breakdown
- Mon84%(51 flights)
- Tue85%(48 flights)
- Wed86%(50 flights)
- Thu88%(51 flights)
- Fri86%(51 flights)
- Sat82%(51 flights)
- Sun77%(52 flights)
- 9 AM–12 PM84%(313 flights)
- 12–3 PM88%(41 flights)
68%
May
Jun 63% → May 68% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 63% | 30 |
| July 2025 | 84% | 31 |
| August 2025 | 90% | 31 |
| September 2025 | 97% | 30 |
| October 2025 | 97% | 30 |
| November 2025 | 92% | 26 |
| December 2025 | 93% | 30 |
| January 2026 | 79% | 29 |
| February 2026 | 85% | 27 |
| March 2026 | 90% | 29 |
| April 2026 | 73% | 30 |
| May 2026 | 68% | 31 |
- Departures on time
- 86%
- Diverted
- 0%
- Flights flown
- 354
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 357 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.