UA1109
UA1109 (United Airlines) is a multi-stop service on 9 routes, busiest Bozeman to Denver. Of 714 departures recorded from October 2024 to July 2026, 76.1% left on time, according to the US BTS.
- On-time departures76.1%of 714 flights
- Average delay14.6 min
- July 202627▼ 12.9%vs July 2025
- Cancelled0.3%
- Legs flown under this number9
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 | 36 | ▲ 16.1% |
| February | 28 | 28 | 0.0% |
| March | 31 | 48 | ▲ 54.8% |
| April | 30 | 30 | 0.0% |
| May | 31 | 25 | ▼ 19.4% |
| June | 30 | 26 | ▼ 13.3% |
| July | 31 | 27 | ▼ 12.9% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 37 | – | in progress |
| November | 58 | – | – |
| December | 46 | – | – |
| Year to date (Jan–Jul) | 212 | 220 | ▲ 3.8% |
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 | 90.3% | 77.8% | ▼ 13.9% |
| February | 71.4% | 75.0% | ▲ 5.0% |
| March | 93.6% | 60.4% | ▼ 35.4% |
| April | 86.7% | 90.0% | ▲ 3.8% |
| May | 74.2% | 88.0% | ▲ 18.6% |
| June | 56.7% | 84.6% | ▲ 49.3% |
| July | 48.3% | 81.5% | ▲ 68.8% |
| August | 58.1% | – | – |
| September | 83.3% | – | – |
| October | 78.4% | – | in progress |
| November | 75.9% | – | – |
| December | 71.7% | – | – |
| Year-to-date average (Jan–Jul) | 74.4% | 79.6% | ▲ 6.9% |
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 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 2 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 0 | ▼ 100.0% |
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% 712
- 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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BZN DEN Bozeman Yellowstone International Airport – Denver International Airport | 844 | 16.8 min | 73.7% | 470 |
| DEN BNA Denver International Airport – Nashville International Airport | 1,628 | 7.8 min | 83.8% | 117 |
| EWR BOS Newark Liberty International Airport – Boston Logan International Airport | 322 | -2.9 min | 91.9% | 37 |
| DEN ONT Denver International Airport – Ontario International Airport | 1,316 | 9.8 min | 83.3% | 36 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 29 | 29 | 72.4% | 0 |
| December 2024 | 31 | 31 | 83.9% | 0 |
| January 2025 | 31 | 31 | 90.3% | 0 |
| February 2025 | 28 | 28 | 71.4% | 0 |
| March 2025 | 31 | 31 | 93.6% | 0 |
| April 2025 | 30 | 30 | 86.7% | 0 |
| May 2025 | 31 | 31 | 74.2% | 0 |
| June 2025 | 30 | 30 | 56.7% | 0 |
| July 2025 | 31 | 29 | 48.3% | 2 |
| August 2025 | 31 | 31 | 58.1% | 0 |
| September 2025 | 30 | 30 | 83.3% | 0 |
| October 2025 | 37 | 37 | 78.4% | 0 |
| November 2025 | 58 | 58 | 75.9% | 0 |
| December 2025 | 46 | 46 | 71.7% | 0 |
| January 2026 | 36 | 36 | 77.8% | 0 |
| February 2026 | 28 | 28 | 75.0% | 0 |
| March 2026 | 48 | 48 | 60.4% | 0 |
| April 2026 | 30 | 30 | 90.0% | 0 |
| May 2026 | 25 | 25 | 88.0% | 0 |
| June 2026 | 26 | 26 | 84.6% | 0 |
| July 2026 | 27 | 27 | 81.5% | 0 |