Flight Reliability
UA 5978 · United Airlines
Denver → FAT (DEN–FAT)
94
Nerd Approved
WanderNerd Reliability Score
- 86%
- Arrive within 15 minutes
- 0 min
- Average arrival delay
- 0%
- Cancelled
- 9 min early
- Median arrival delay
Based on 364 historical flights. Data through May 2026.
What the data says
Sunday comes out ahead.
A small edge: 87% on time on Sundays against 83% on Wednesdays.
A bit ahead of the DEN–FAT route.
UA 5978 arrived on time 86% of the time, versus 82% across the DEN–FAT route.
A bit ahead of the United Airlines network.
UA 5978 arrived on time 86% of the time, versus 79% across the United Airlines network.
It basically never cancels.
Out of 364 scheduled flights, only 0.0% were cancelled.
The breakdown
- Mon87%(52 flights)
- Tue87%(52 flights)
- Wed83%(52 flights)
- Thu86%(51 flights)
- Fri85%(52 flights)
- Sat87%(52 flights)
- Sun87%(53 flights)
87%
May
Jun 73% → May 87% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 73% | 30 |
| July 2025 | 71% | 31 |
| August 2025 | 81% | 31 |
| September 2025 | 90% | 30 |
| October 2025 | 100% | 31 |
| November 2025 | 97% | 29 |
| December 2025 | 74% | 31 |
| January 2026 | 90% | 31 |
| February 2026 | 82% | 28 |
| March 2026 | 97% | 31 |
| April 2026 | 87% | 30 |
| May 2026 | 87% | 31 |
- Departures on time
- 88%
- Diverted
- 0%
- Flights flown
- 364
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 364 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.