UA2159
UA2159 (United Airlines) is a multi-stop service on 11 routes, busiest Denver to Kansas City. Of 742 departures recorded from October 2024 to July 2026, 88.4% left on time, according to the US BTS.
- On-time departures88.4%of 742 flights
- Average delay3.5 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.3%
- Legs flown under this number11
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 | 56 | 31 | ▼ 44.6% |
| February | 50 | 27 | ▼ 46.0% |
| March | 34 | 31 | ▼ 8.8% |
| April | 30 | 31 | ▲ 3.3% |
| May | 31 | 50 | ▲ 61.3% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 262 | 231 | ▼ 11.8% |
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 | 94.6% | 83.9% | ▼ 11.4% |
| February | 86.0% | 88.9% | ▲ 3.4% |
| March | 97.0% | 77.4% | ▼ 20.2% |
| April | 83.3% | 83.9% | ▲ 0.6% |
| May | 77.4% | 88.0% | ▲ 13.7% |
| June | 80.0% | 82.8% | ▲ 3.5% |
| July | 93.6% | 90.3% | ▼ 3.5% |
| August | 90.3% | – | – |
| September | 100.0% | – | – |
| October | 80.7% | – | in progress |
| November | 100.0% | – | – |
| December | 93.6% | – | – |
| Year-to-date average (Jan–Jul) | 87.4% | 85.0% | ▼ 2.7% |
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 | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 1 | 0.0% |
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 99.7% 740
- Cancelled 0.3% 2
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 MCI Denver International Airport – Kansas City International Airport | 855 | 3.3 min | 88.2% | 432 |
| TPA DEN Tampa International Airport – Denver International Airport | 2,423 | 4.4 min | 92.1% | 89 |
| DEN SJC Denver International Airport – Mineta San Jose International Airport | 1,522 | 1.9 min | 87.9% | 58 |
| DTW DEN Detroit Metropolitan Wayne County Airport – Denver International Airport | 1,802 | 2.4 min | 89.1% | 56 |
| EWR TPA Newark Liberty International Airport – Tampa International Airport | 1,607 | 4.6 min | 88.6% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 29 | 29 | 89.7% | 0 |
| December 2024 | 47 | 47 | 87.2% | 0 |
| January 2025 | 56 | 56 | 94.6% | 0 |
| February 2025 | 50 | 50 | 86.0% | 0 |
| March 2025 | 34 | 33 | 97.0% | 1 |
| April 2025 | 30 | 30 | 83.3% | 0 |
| May 2025 | 31 | 31 | 77.4% | 0 |
| June 2025 | 30 | 30 | 80.0% | 0 |
| July 2025 | 31 | 31 | 93.6% | 0 |
| August 2025 | 31 | 31 | 90.3% | 0 |
| September 2025 | 30 | 30 | 100.0% | 0 |
| October 2025 | 31 | 31 | 80.7% | 0 |
| November 2025 | 30 | 30 | 100.0% | 0 |
| December 2025 | 31 | 31 | 93.6% | 0 |
| January 2026 | 31 | 31 | 83.9% | 0 |
| February 2026 | 27 | 27 | 88.9% | 0 |
| March 2026 | 31 | 31 | 77.4% | 0 |
| April 2026 | 31 | 31 | 83.9% | 0 |
| May 2026 | 50 | 50 | 88.0% | 0 |
| June 2026 | 30 | 29 | 82.8% | 1 |
| July 2026 | 31 | 31 | 90.3% | 0 |