UA578
UA578 (United Airlines) is a multi-stop service on 8 routes, busiest Denver to Dallas-Fort Worth. Of 774 departures recorded from October 2024 to July 2026, 84.7% left on time, according to the US BTS.
- On-time departures84.7%of 774 flights
- Average delay11.2 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.0%
- Legs flown under this number8
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 37 | 36 | ▼ 2.7% |
| February | 28 | 40 | ▲ 42.9% |
| March | 55 | 35 | ▼ 36.4% |
| April | 30 | 30 | 0.0% |
| May | 62 | 31 | ▼ 50.0% |
| June | 55 | 30 | ▼ 45.5% |
| July | 31 | 31 | 0.0% |
| August | 24 | – | – |
| September | 19 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 45 | – | – |
| Year to date (Jan–Jul) | 298 | 233 | ▼ 21.8% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 82.4% | 94.1% | ▲ 14.3% |
| February | 85.7% | 84.2% | ▼ 1.8% |
| March | 90.9% | 85.7% | ▼ 5.7% |
| April | 83.3% | 80.0% | ▼ 4.0% |
| May | 75.8% | 87.1% | ▲ 14.9% |
| June | 85.5% | 86.7% | ▲ 1.4% |
| July | 93.6% | 71.0% | ▼ 24.1% |
| August | 91.7% | – | – |
| September | 100.0% | – | – |
| October | 93.6% | – | in progress |
| November | 75.9% | – | – |
| December | 80.0% | – | – |
| Year-to-date average (Jan–Jul) | 85.3% | 84.1% | ▼ 1.4% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 3 | 2 | ▼ 33.3% |
| February | 0 | 2 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 4 | ▲ 33.3% |
according to the US BTS · October 2024 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.0% 766
- Cancelled 1.0% 8
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN DFW Denver International Airport – Dallas Fort Worth International Airport | 1,032 | 13.2 min | 81.5% | 501 |
| LAX DEN Los Angeles International Airport – Denver International Airport | 1,385 | 3.1 min | 93.1% | 203 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 80.0% | 0 |
| November 2024 | 30 | 30 | 76.7% | 0 |
| December 2024 | 44 | 44 | 88.6% | 0 |
| January 2025 | 37 | 34 | 82.4% | 3 |
| February 2025 | 28 | 28 | 85.7% | 0 |
| March 2025 | 55 | 55 | 90.9% | 0 |
| April 2025 | 30 | 30 | 83.3% | 0 |
| May 2025 | 62 | 62 | 75.8% | 0 |
| June 2025 | 55 | 55 | 85.5% | 0 |
| July 2025 | 31 | 31 | 93.6% | 0 |
| August 2025 | 24 | 24 | 91.7% | 0 |
| September 2025 | 19 | 19 | 100.0% | 0 |
| October 2025 | 31 | 31 | 93.6% | 0 |
| November 2025 | 30 | 29 | 75.9% | 1 |
| December 2025 | 45 | 45 | 80.0% | 0 |
| January 2026 | 36 | 34 | 94.1% | 2 |
| February 2026 | 40 | 38 | 84.2% | 2 |
| March 2026 | 35 | 35 | 85.7% | 0 |
| April 2026 | 30 | 30 | 80.0% | 0 |
| May 2026 | 31 | 31 | 87.1% | 0 |
| June 2026 | 30 | 30 | 86.7% | 0 |
| July 2026 | 31 | 31 | 71.0% | 0 |