UA1004
UA1004 (United Airlines) is a multi-stop service on 14 routes, busiest Denver to Rapid City. Of 563 departures recorded from October 2024 to March 2026, 78.8% left on time, according to the US BTS.
- On-time departures78.8%of 563 flights
- Average delay18.2 min
- March 202628▼ 9.7%vs March 2025
- Cancelled1.2%
- Legs flown under this number14
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods13 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 26 | ▼ 16.1% |
| February | 28 | 28 | 0.0% |
| March | 31 | 28 | ▼ 9.7% |
| April | 30 | – | – |
| May | 39 | – | – |
| June | – | – | – |
| July | – | – | – |
| August | 23 | – | – |
| September | 64 | – | – |
| October | 73 | – | in progress |
| November | 30 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Mar) | 90 | 82 | ▼ 8.9% |
according to the US BTS · October 2024 → March 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 periods13 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 80.7% | 80.0% | ▼ 0.8% |
| February | 77.8% | 69.2% | ▼ 11.0% |
| March | 67.7% | 67.9% | ▲ 0.2% |
| April | 66.7% | – | – |
| May | 63.2% | – | – |
| June | – | – | – |
| July | – | – | – |
| August | 82.6% | – | – |
| September | 76.2% | – | – |
| October | 84.9% | – | in progress |
| November | 82.8% | – | – |
| December | 100.0% | – | – |
| Year-to-date average (Jan–Mar) | 75.4% | 72.4% | ▼ 4.0% |
according to the US BTS · October 2024 → March 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → March 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods13 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 1 | 2 | ▲ 100.0% |
| March | 0 | 0 | – |
| April | 0 | – | – |
| May | 1 | – | – |
| June | – | – | – |
| July | – | – | – |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Mar) | 1 | 3 | ▲ 200.0% |
according to the US BTS · October 2024 → March 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 98.8% 556
- Cancelled 1.2% 7
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Mar 28, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN RAP Denver International Airport – Rapid City Regional Airport | 484 | 13.9 min | 83.1% | 155 |
| CLE EWR Cleveland Hopkins International Airport – Newark Liberty International Airport | 649 | 21.1 min | 75.0% | 68 |
| EWR IAH Newark Liberty International Airport – George Bush Intercontinental Airport | 2,250 | 16.8 min | 74.6% | 58 |
| STL DEN St. Louis Lambert International Airport – Denver International Airport | 1,236 | 22.0 min | 71.1% | 45 |
| ORD IND Chicago O'Hare International Airport – Indianapolis International Airport | 286 | 11.8 min | 86.1% | 37 |
| FLL DEN Fort Lauderdale Hollywood International Airport – Denver International Airport | 2,739 | 9.0 min | 91.7% | 36 |
| EWR CLT Newark Liberty International Airport – Charlotte Douglas International Airport | 850 | 26.4 min | 77.4% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 40 | 87.5% | 0 |
| November 2024 | 58 | 58 | 87.9% | 0 |
| December 2024 | 33 | 33 | 90.9% | 0 |
| January 2025 | 31 | 31 | 80.7% | 0 |
| February 2025 | 28 | 27 | 77.8% | 1 |
| March 2025 | 31 | 31 | 67.7% | 0 |
| April 2025 | 30 | 30 | 66.7% | 0 |
| May 2025 | 39 | 38 | 63.2% | 1 |
| August 2025 | 23 | 23 | 82.6% | 0 |
| September 2025 | 64 | 63 | 76.2% | 1 |
| October 2025 | 73 | 73 | 84.9% | 0 |
| November 2025 | 30 | 29 | 82.8% | 1 |
| December 2025 | 1 | 1 | 100.0% | 0 |
| January 2026 | 26 | 25 | 80.0% | 1 |
| February 2026 | 28 | 26 | 69.2% | 2 |
| March 2026 | 28 | 28 | 67.9% | 0 |