Flight Reliability
UA 5233 · United Airlines
Denver → AMA (DEN–AMA)99% of its flights flew this route. The rest (MSY–IAH) are included in these numbers.
77
Usually Fine
WanderNerd Reliability Score
- 79%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 2.2%
- Cancelled
- 9 min early
- Median arrival delay
Based on 365 historical flights. Data through May 2026.
What the data says
Saturday is the weak spot.
UA 5233 arrived on time 88% of the time on Fridays. On Saturdays: 75%.
A bit ahead of the DEN–AMA route.
UA 5233 arrived on time 79% of the time, versus 74% across the DEN–AMA route.
Ticking up lately.
UA 5233 arrived on time 84% of the time over the last three months in the data, compared with 79% in the three months before that.
The breakdown
- Mon75%(52 flights)
- Tue76%(49 flights)
- Wed80%(51 flights)
- Thu78%(51 flights)
- Fri88%(49 flights)
- Sat75%(52 flights)
- Sun83%(52 flights)
71%
May
Jun 53% → May 71% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 53% | 30 |
| July 2025 | 80% | 30 |
| August 2025 | 74% | 31 |
| September 2025 | 87% | 30 |
| October 2025 | 81% | 31 |
| November 2025 | 89% | 27 |
| December 2025 | 81% | 31 |
| January 2026 | 83% | 29 |
| February 2026 | 74% | 27 |
| March 2026 | 90% | 29 |
| April 2026 | 90% | 30 |
| May 2026 | 71% | 31 |
- Departures on time
- 80%
- Diverted
- 0.3%
- Flights flown
- 356
- 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.