UA1225
UA1225 (United Airlines) is a multi-stop service on 18 routes, busiest Austin to Denver. Of 651 departures recorded from October 2024 to July 2026, 86.0% left on time, according to the US BTS.
- On-time departures86.0%of 651 flights
- Average delay7.5 min
- July 202622
- Cancelled0.5%
- Legs flown under this number18
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 31 | 0.0% |
| February | 28 | 25 | ▼ 10.7% |
| March | 31 | 37 | ▲ 19.4% |
| April | 30 | 30 | 0.0% |
| May | 41 | 23 | ▼ 43.9% |
| June | 50 | 23 | ▼ 54.0% |
| July | – | 22 | – |
| August | 26 | – | – |
| September | 54 | – | – |
| October | 32 | – | in progress |
| November | 31 | – | – |
| December | 26 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 87.1% | 90.0% | ▲ 3.3% |
| February | 82.1% | 100.0% | ▲ 21.7% |
| March | 90.3% | 88.9% | ▼ 1.6% |
| April | 90.0% | 96.7% | ▲ 7.4% |
| May | 82.9% | 78.3% | ▼ 5.6% |
| June | 92.0% | 65.2% | ▼ 29.1% |
| July | – | 86.4% | – |
| August | 88.5% | – | – |
| September | 83.3% | – | – |
| October | 71.9% | – | in progress |
| November | 71.0% | – | – |
| December | 84.0% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
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 99.5% 648
- Cancelled 0.5% 3
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
8| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| AUS DEN Austin Bergstrom International Airport – Denver International Airport | 1,249 | 6.6 min | 88.3% | 197 |
| SFO ORD San Francisco International Airport – Chicago O'Hare International Airport | 2,964 | 9.5 min | 79.6% | 103 |
| LAX SFO Los Angeles International Airport – San Francisco International Airport | 543 | 1.2 min | 88.9% | 72 |
| RNO DEN Reno Tahoe International Airport – Denver International Airport | 1,291 | 18.9 min | 73.0% | 64 |
| PHX DEN Phoenix Sky Harbor International Airport – Denver International Airport | 968 | 10.4 min | 76.4% | 56 |
| DEN FLL Denver International Airport – Fort Lauderdale Hollywood International Airport | 2,739 | -4.5 min | 95.1% | 41 |
| LGA ORD LaGuardia Airport – Chicago O'Hare International Airport | 1,177 | 6.1 min | 91.7% | 37 |
| IAH LGA George Bush Intercontinental Airport – LaGuardia Airport | 2,277 | -2.1 min | 96.9% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 29 | 29 | 89.7% | 0 |
| December 2024 | 31 | 31 | 93.6% | 0 |
| January 2025 | 31 | 31 | 87.1% | 0 |
| February 2025 | 28 | 28 | 82.1% | 0 |
| March 2025 | 31 | 31 | 90.3% | 0 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 41 | 41 | 82.9% | 0 |
| June 2025 | 50 | 50 | 92.0% | 0 |
| August 2025 | 26 | 26 | 88.5% | 0 |
| September 2025 | 54 | 54 | 83.3% | 0 |
| October 2025 | 32 | 32 | 71.9% | 0 |
| November 2025 | 31 | 31 | 71.0% | 0 |
| December 2025 | 26 | 25 | 84.0% | 1 |
| January 2026 | 31 | 30 | 90.0% | 1 |
| February 2026 | 25 | 25 | 100.0% | 0 |
| March 2026 | 37 | 36 | 88.9% | 1 |
| April 2026 | 30 | 30 | 96.7% | 0 |
| May 2026 | 23 | 23 | 78.3% | 0 |
| June 2026 | 23 | 23 | 65.2% | 0 |
| July 2026 | 22 | 22 | 86.4% | 0 |