UA456
UA456 (United Airlines) is a multi-stop service on 14 routes, busiest Denver to Austin. Of 835 departures recorded from October 2024 to July 2026, 85.3% left on time, according to the US BTS.
- On-time departures85.3%of 835 flights
- Average delay13.6 min
- July 202691▲ 193.5%vs July 2025
- Cancelled0.6%
- Legs flown under this number14
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 | 19 | 30 | ▲ 57.9% |
| February | 16 | 28 | ▲ 75.0% |
| March | 29 | 53 | ▲ 82.8% |
| April | 56 | 49 | ▼ 12.5% |
| May | 30 | 70 | ▲ 133.3% |
| June | 30 | 87 | ▲ 190.0% |
| July | 31 | 91 | ▲ 193.5% |
| August | 30 | – | – |
| September | 27 | – | – |
| October | 29 | – | in progress |
| November | 19 | – | – |
| December | 23 | – | – |
| Year to date (Jan–Jul) | 211 | 408 | ▲ 93.4% |
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 | 89.5% | 89.7% | ▲ 0.2% |
| February | 93.8% | 92.9% | ▼ 0.9% |
| March | 82.8% | 83.0% | ▲ 0.3% |
| April | 78.6% | 89.6% | ▲ 14.0% |
| May | 65.5% | 88.6% | ▲ 35.2% |
| June | 100.0% | 83.7% | ▼ 16.3% |
| July | 83.3% | 72.5% | ▼ 13.0% |
| August | 93.3% | – | – |
| September | 100.0% | – | – |
| October | 89.7% | – | in progress |
| November | 94.7% | – | – |
| December | 95.7% | – | – |
| Year-to-date average (Jan–Jul) | 84.8% | 85.7% | ▲ 1.1% |
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 | 0 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 1 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 1 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 3 | ▲ 50.0% |
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 99.4% 830
- Cancelled 0.6% 5
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN AUS Denver International Airport – Austin Bergstrom International Airport | 1,249 | -3.5 min | 96.4% | 478 |
| AUS ORD Austin Bergstrom International Airport – Chicago O'Hare International Airport | 1,574 | 24.0 min | 78.3% | 144 |
| AUS EWR Austin Bergstrom International Airport – Newark Liberty International Airport | 2,416 | 57.9 min | 66.7% | 76 |
| ORD DCA Chicago O'Hare International Airport – Ronald Reagan Washington National Airport | 983 | 42.4 min | 56.5% | 46 |
| SAN SFO San Diego International Airport – San Francisco International Airport | 719 | 45.5 min | 69.7% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 94.1% | 0 |
| November 2024 | 26 | 26 | 96.2% | 0 |
| December 2024 | 45 | 45 | 73.3% | 0 |
| January 2025 | 19 | 19 | 89.5% | 0 |
| February 2025 | 16 | 16 | 93.8% | 0 |
| March 2025 | 29 | 29 | 82.8% | 0 |
| April 2025 | 56 | 56 | 78.6% | 0 |
| May 2025 | 30 | 29 | 65.5% | 1 |
| June 2025 | 30 | 30 | 100.0% | 0 |
| July 2025 | 31 | 30 | 83.3% | 1 |
| August 2025 | 30 | 30 | 93.3% | 0 |
| September 2025 | 27 | 27 | 100.0% | 0 |
| October 2025 | 29 | 29 | 89.7% | 0 |
| November 2025 | 19 | 19 | 94.7% | 0 |
| December 2025 | 23 | 23 | 95.7% | 0 |
| January 2026 | 30 | 29 | 89.7% | 1 |
| February 2026 | 28 | 28 | 92.9% | 0 |
| March 2026 | 53 | 53 | 83.0% | 0 |
| April 2026 | 49 | 48 | 89.6% | 1 |
| May 2026 | 70 | 70 | 88.6% | 0 |
| June 2026 | 87 | 86 | 83.7% | 1 |
| July 2026 | 91 | 91 | 72.5% | 0 |