UA1451
UA1451 (United Airlines) is a multi-stop service on 15 routes, busiest Denver to Jacksonville. Of 717 departures recorded from October 2024 to July 2026, 84.2% left on time, according to the US BTS.
- On-time departures84.2%of 717 flights
- Average delay9.2 min
- July 202622
- Cancelled0.4%
- Legs flown under this number15
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 31 | 0.0% |
| February | 44 | 45 | ▲ 2.3% |
| March | 38 | 38 | 0.0% |
| April | 30 | 58 | ▲ 93.3% |
| May | 21 | 29 | ▲ 38.1% |
| June | – | 21 | – |
| July | – | 22 | – |
| August | 26 | – | – |
| September | 54 | – | – |
| October | 31 | – | in progress |
| November | 54 | – | – |
| December | 32 | – | – |
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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 83.3% | 96.8% | ▲ 16.1% |
| February | 81.8% | 91.1% | ▲ 11.4% |
| March | 84.2% | 81.6% | ▼ 3.1% |
| April | 70.0% | 91.4% | ▲ 30.5% |
| May | 61.9% | 93.1% | ▲ 50.4% |
| June | – | 71.4% | – |
| July | – | 63.6% | – |
| August | 69.2% | – | – |
| September | 92.6% | – | – |
| October | 90.3% | – | in progress |
| November | 83.0% | – | – |
| December | 81.3% | – | – |
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 periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | – | 0 | – |
| July | – | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 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 99.6% 714
- Cancelled 0.4% 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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN JAX Denver International Airport – Jacksonville International Airport | 2,325 | 5.8 min | 85.9% | 269 |
| DEN MCO Denver International Airport – Orlando International Airport | 2,486 | 18.4 min | 78.4% | 164 |
| SMF DEN Sacramento International Airport – Denver International Airport | 1,460 | -4.8 min | 98.0% | 51 |
| MTJ DEN Montrose Regional Airport – Denver International Airport | 316 | 12.4 min | 81.1% | 37 |
| DEN GSP Denver International Airport – Greenville-Spartanburg International Airport | 2,053 | 8.5 min | 86.5% | 37 |
| PSC DEN Tri Cities Airport – Denver International Airport | 1,370 | 2.3 min | 90.6% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 35 | 35 | 91.4% | 0 |
| November 2024 | 30 | 30 | 96.7% | 0 |
| December 2024 | 47 | 46 | 78.3% | 1 |
| January 2025 | 31 | 30 | 83.3% | 1 |
| February 2025 | 44 | 44 | 81.8% | 0 |
| March 2025 | 38 | 38 | 84.2% | 0 |
| April 2025 | 30 | 30 | 70.0% | 0 |
| May 2025 | 21 | 21 | 61.9% | 0 |
| August 2025 | 26 | 26 | 69.2% | 0 |
| September 2025 | 54 | 54 | 92.6% | 0 |
| October 2025 | 31 | 31 | 90.3% | 0 |
| November 2025 | 54 | 53 | 83.0% | 1 |
| December 2025 | 32 | 32 | 81.3% | 0 |
| January 2026 | 31 | 31 | 96.8% | 0 |
| February 2026 | 45 | 45 | 91.1% | 0 |
| March 2026 | 38 | 38 | 81.6% | 0 |
| April 2026 | 58 | 58 | 91.4% | 0 |
| May 2026 | 29 | 29 | 93.1% | 0 |
| June 2026 | 21 | 21 | 71.4% | 0 |
| July 2026 | 22 | 22 | 63.6% | 0 |