UA2258
UA2258 (United Airlines) is a multi-stop service on 8 routes, busiest Denver to Chicago. Of 818 departures recorded from October 2024 to July 2026, 70.6% left on time, according to the US BTS.
- On-time departures70.6%of 818 flights
- Average delay23.7 min
- July 202657▲ 83.9%vs July 2025
- Cancelled1.1%
- 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 | 31 | 31 | 0.0% |
| February | 24 | 25 | ▲ 4.2% |
| March | 22 | 54 | ▲ 145.5% |
| April | 21 | 51 | ▲ 142.9% |
| May | 41 | 62 | ▲ 51.2% |
| June | 55 | 60 | ▲ 9.1% |
| July | 31 | 57 | ▲ 83.9% |
| August | 28 | – | – |
| September | 26 | – | – |
| October | 26 | – | in progress |
| November | 28 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 225 | 340 | ▲ 51.1% |
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 | 87.1% | 80.7% | ▼ 7.4% |
| February | 79.2% | 80.0% | ▲ 1.0% |
| March | 77.3% | 66.7% | ▼ 13.7% |
| April | 47.6% | 89.8% | ▲ 88.6% |
| May | 48.8% | 82.3% | ▲ 68.6% |
| June | 40.0% | 72.9% | ▲ 82.2% |
| July | 33.3% | 69.8% | ▲ 109.5% |
| August | 50.0% | – | – |
| September | 88.5% | – | – |
| October | 73.1% | – | in progress |
| November | 74.1% | – | – |
| December | 75.9% | – | – |
| Year-to-date average (Jan–Jul) | 59.0% | 77.4% | ▲ 31.2% |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 2 | – |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 1 | 4 | ▲ 300.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 7 | ▲ 600.0% |
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 98.9% 809
- Cancelled 1.1% 9
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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN ORD Denver International Airport – Chicago O'Hare International Airport | 1,426 | 26.6 min | 64.0% | 491 |
| BZN DEN Bozeman Yellowstone International Airport – Denver International Airport | 844 | 11.9 min | 83.2% | 149 |
| MTJ DEN Montrose Regional Airport – Denver International Airport | 316 | 50.2 min | 66.7% | 72 |
| SEA DEN Seattle–Tacoma International Airport – Denver International Airport | 1,645 | 18.2 min | 83.8% | 37 |
| RSW DEN Southwest Florida International Airport – Denver International Airport | 2,584 | 4.2 min | 86.1% | 36 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 39 | 39 | 82.1% | 0 |
| November 2024 | 54 | 54 | 79.6% | 0 |
| December 2024 | 23 | 23 | 73.9% | 0 |
| January 2025 | 31 | 31 | 87.1% | 0 |
| February 2025 | 24 | 24 | 79.2% | 0 |
| March 2025 | 22 | 22 | 77.3% | 0 |
| April 2025 | 21 | 21 | 47.6% | 0 |
| May 2025 | 41 | 41 | 48.8% | 0 |
| June 2025 | 55 | 55 | 40.0% | 0 |
| July 2025 | 31 | 30 | 33.3% | 1 |
| August 2025 | 28 | 28 | 50.0% | 0 |
| September 2025 | 26 | 26 | 88.5% | 0 |
| October 2025 | 26 | 26 | 73.1% | 0 |
| November 2025 | 28 | 27 | 74.1% | 1 |
| December 2025 | 29 | 29 | 75.9% | 0 |
| January 2026 | 31 | 31 | 80.7% | 0 |
| February 2026 | 25 | 25 | 80.0% | 0 |
| March 2026 | 54 | 54 | 66.7% | 0 |
| April 2026 | 51 | 49 | 89.8% | 2 |
| May 2026 | 62 | 62 | 82.3% | 0 |
| June 2026 | 60 | 59 | 72.9% | 1 |
| July 2026 | 57 | 53 | 69.8% | 4 |