Flight Reliability
UA 4844 · United Airlines
MOB → Houston (MOB–IAH)
93
Nerd Approved
WanderNerd Reliability Score
- 89%
- Arrive within 15 minutes
- 1 min early
- Average arrival delay
- 1.1%
- Cancelled
- 13 min early
- Median arrival delay
Based on 363 historical flights. Data through May 2026.
What the data says
Skip Saturday if you can.
UA 4844 arrived on time 92% of the time on Thursdays. On Saturdays: 84%.
A bit ahead of the MOB–IAH route.
UA 4844 arrived on time 89% of the time, versus 86% across the MOB–IAH route.
Better than the United Airlines network average.
UA 4844 arrived on time 89% of the time, versus 79% across the United Airlines network.
Slipping a little lately.
UA 4844 arrived on time 88% of the time over the last three months in the data, compared with 93% in the three months before that.
The breakdown
- Mon90%(51 flights)
- Tue87%(52 flights)
- Wed88%(51 flights)
- Thu92%(52 flights)
- Fri90%(51 flights)
- Sat84%(51 flights)
- Sun90%(51 flights)
87%
May
Jun 66% → May 87% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 66% | 29 |
| July 2025 | 83% | 30 |
| August 2025 | 97% | 31 |
| September 2025 | 100% | 30 |
| October 2025 | 87% | 31 |
| November 2025 | 90% | 30 |
| December 2025 | 90% | 31 |
| January 2026 | 97% | 30 |
| February 2026 | 93% | 27 |
| March 2026 | 83% | 29 |
| April 2026 | 93% | 30 |
| May 2026 | 87% | 31 |
- Departures on time
- 91%
- Diverted
- 0%
- Flights flown
- 359
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 363 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.