Flight Reliability
UA 5773 · United Airlines
Denver → Aspen (DEN–ASE)92% of its flights flew this route. The rest (ABE–ORD, DEN–SLC) are included in these numbers.
- 74%
- Arrive within 15 minutes
- 13 min
- Average arrival delay
- 7.6%
- Cancelled
- 8 min early
- Median arrival delay
Based on 356 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
UA 5773 arrived on time 81% of the time on Tuesdays and just 62% on Fridays. That gap is worth planning around.
A bit behind the United Airlines network.
UA 5773 arrived on time 74% of the time, versus 79% across the United Airlines network.
Keep a backup plan handy.
UA 5773 was cancelled 7.6% of the time. Typical for U.S. flights is around 1–2%.
Trending in the right direction.
UA 5773 arrived on time 83% of the time over the last three months in the data, compared with 73% in the three months before that.
The breakdown
- Mon75%(44 flights)
- Tue81%(48 flights)
- Wed75%(47 flights)
- Thu65%(46 flights)
- Fri62%(45 flights)
- Sat80%(46 flights)
- Sun81%(47 flights)
Jun 56% → May 66% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 56% | 25 |
| July 2025 | 50% | 24 |
| August 2025 | 62% | 29 |
| September 2025 | 79% | 29 |
| October 2025 | 90% | 31 |
| November 2025 | 82% | 28 |
| December 2025 | 64% | 28 |
| January 2026 | 82% | 28 |
| February 2026 | 74% | 23 |
| March 2026 | 96% | 26 |
| April 2026 | 87% | 23 |
| May 2026 | 66% | 29 |
- Departures on time
- 79%
- Diverted
- 1.7%
- Flights flown
- 323
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 356 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.