Flight Reliability
UA 4246 · United Airlines
GPT → Houston (GPT–IAH)
82
Pretty Reliable
WanderNerd Reliability Score
- 80%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 1.7%
- Cancelled
- 8 min early
- Median arrival delay
Based on 356 historical flights. Data through May 2026.
What the data says
Thursdays have been rough.
UA 4246 arrived on time 86% of the time on Wednesdays and just 71% on Thursdays. That gap is worth planning around.
Recent months have been rougher.
UA 4246 arrived on time 80% of the time over the last three months in the data, compared with 90% in the three months before that.
The breakdown
- Mon80%(50 flights)
- Tue85%(48 flights)
- Wed86%(49 flights)
- Thu71%(51 flights)
- Fri84%(49 flights)
- Sat80%(51 flights)
- Sun77%(52 flights)
91%
May
Jun 48% → May 91% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 48% | 29 |
| July 2025 | 75% | 28 |
| August 2025 | 84% | 31 |
| September 2025 | 90% | 30 |
| October 2025 | 71% | 31 |
| November 2025 | 86% | 29 |
| December 2025 | 90% | 30 |
| January 2026 | 90% | 31 |
| February 2026 | 89% | 28 |
| March 2026 | 80% | 30 |
| April 2026 | 70% | 30 |
| May 2026 | 91% | 23 |
- Departures on time
- 85%
- Diverted
- 0%
- Flights flown
- 350
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 356 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.