Flight Reliability
UA 4688 · United Airlines
Denver → FAR (DEN–FAR)99% of its flights flew this route. The rest (AMA–DEN, FAT–LAX) are included in these numbers.
81
Pretty Reliable
WanderNerd Reliability Score
- 79%
- Arrive within 15 minutes
- 13 min
- Average arrival delay
- 0.8%
- Cancelled
- 4 min early
- Median arrival delay
Based on 365 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
UA 4688 arrived on time 83% of the time on Wednesdays. On Fridays: 75%.
Trending in the right direction.
UA 4688 arrived on time 87% of the time over the last three months in the data, compared with 72% in the three months before that.
The breakdown
- Mon82%(51 flights)
- Tue79%(52 flights)
- Wed83%(52 flights)
- Thu78%(51 flights)
- Fri75%(52 flights)
- Sat77%(51 flights)
- Sun80%(51 flights)
- 6–9 AM—(2 flights)
- 9 AM–12 PM79%(357 flights)
- 3–6 PM—(1 flights)
84%
May
Jun 77% → May 84% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 77% | 30 |
| July 2025 | 84% | 31 |
| August 2025 | 65% | 31 |
| September 2025 | 87% | 30 |
| October 2025 | 90% | 30 |
| November 2025 | 73% | 30 |
| December 2025 | 65% | 31 |
| January 2026 | 69% | 29 |
| February 2026 | 82% | 28 |
| March 2026 | 87% | 30 |
| April 2026 | 90% | 29 |
| May 2026 | 84% | 31 |
- Departures on time
- 81%
- Diverted
- 0.5%
- Flights flown
- 360
- 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.