Flight Reliability
UA 5791 · United Airlines
LBB → Denver (LBB–DEN)
85
Pretty Reliable
WanderNerd Reliability Score
- 83%
- Arrive within 15 minutes
- 13 min
- Average arrival delay
- 1.1%
- Cancelled
- 14 min early
- Median arrival delay
Based on 365 historical flights. Data through May 2026.
What the data says
Mondays have been rough.
UA 5791 arrived on time 94% of the time on Fridays and just 65% on Mondays. That gap is worth planning around.
Better than the LBB–DEN route average.
UA 5791 arrived on time 83% of the time, versus 74% across the LBB–DEN route.
A bit ahead of the United Airlines network.
UA 5791 arrived on time 83% of the time, versus 79% across the United Airlines network.
Recent months have been rougher.
UA 5791 arrived on time 80% of the time over the last three months in the data, compared with 87% in the three months before that.
The breakdown
- Mon65%(51 flights)
- Tue83%(52 flights)
- Wed87%(52 flights)
- Thu89%(52 flights)
- Fri94%(52 flights)
- Sat78%(51 flights)
- Sun88%(51 flights)
84%
May
Jun 80% → May 84% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 80% | 30 |
| July 2025 | 81% | 31 |
| August 2025 | 81% | 31 |
| September 2025 | 90% | 30 |
| October 2025 | 81% | 31 |
| November 2025 | 87% | 30 |
| December 2025 | 90% | 31 |
| January 2026 | 86% | 28 |
| February 2026 | 86% | 28 |
| March 2026 | 80% | 30 |
| April 2026 | 77% | 30 |
| May 2026 | 84% | 31 |
- Departures on time
- 86%
- Diverted
- 0%
- Flights flown
- 361
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 365 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.