UA1615
UA1615 (United Airlines) is a multi-stop service on 6 routes, busiest Denver to Cincinnati. Of 810 departures recorded from October 2024 to July 2026, 76.9% left on time, according to the US BTS.
- On-time departures76.9%of 810 flights
- Average delay16.0 min
- July 202661▲ 96.8%vs July 2025
- Cancelled0.6%
- Legs flown under this number6
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 | 28 | 28 | 0.0% |
| March | 53 | 31 | ▼ 41.5% |
| April | 60 | 30 | ▼ 50.0% |
| May | 31 | 42 | ▲ 35.5% |
| June | 30 | 60 | ▲ 100.0% |
| July | 31 | 61 | ▲ 96.8% |
| August | 31 | – | – |
| September | 36 | – | – |
| October | 56 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 264 | 283 | ▲ 7.2% |
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 | 80.0% | 76.7% | ▼ 4.2% |
| February | 78.6% | 89.3% | ▲ 13.6% |
| March | 86.5% | 64.5% | ▼ 25.4% |
| April | 76.7% | 93.1% | ▲ 21.4% |
| May | 71.0% | 88.1% | ▲ 24.1% |
| June | 50.0% | 80.0% | ▲ 60.0% |
| July | 38.7% | 73.8% | ▲ 90.6% |
| August | 61.3% | – | – |
| September | 72.2% | – | – |
| October | 85.5% | – | in progress |
| November | 89.7% | – | – |
| December | 64.5% | – | – |
| Year-to-date average (Jan–Jul) | 68.8% | 80.8% | ▲ 17.4% |
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 | 1 | 1 | 0.0% |
| February | 0 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 2 | 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 99.4% 805
- Cancelled 0.6% 5
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 CVG Denver International Airport – Cincinnati Northern Kentucky International Airport | 1,716 | 15.2 min | 75.9% | 618 |
| PHX DEN Phoenix Sky Harbor International Airport – Denver International Airport | 968 | 25.5 min | 81.9% | 72 |
| TUS DEN Tucson International Airport – Denver International Airport | 1,029 | 10.7 min | 78.4% | 37 |
| SFO DEN San Francisco International Airport – Denver International Airport | 1,553 | 16.0 min | 81.3% | 32 |
| MFR DEN Rogue Valley International-Medford Airport – Denver International Airport | 1,547 | 23.3 min | 70.0% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 29 | 29 | 79.3% | 0 |
| December 2024 | 31 | 31 | 87.1% | 0 |
| January 2025 | 31 | 30 | 80.0% | 1 |
| February 2025 | 28 | 28 | 78.6% | 0 |
| March 2025 | 53 | 52 | 86.5% | 1 |
| April 2025 | 60 | 60 | 76.7% | 0 |
| May 2025 | 31 | 31 | 71.0% | 0 |
| June 2025 | 30 | 30 | 50.0% | 0 |
| July 2025 | 31 | 31 | 38.7% | 0 |
| August 2025 | 31 | 31 | 61.3% | 0 |
| September 2025 | 36 | 36 | 72.2% | 0 |
| October 2025 | 56 | 55 | 85.5% | 1 |
| November 2025 | 29 | 29 | 89.7% | 0 |
| December 2025 | 31 | 31 | 64.5% | 0 |
| January 2026 | 31 | 30 | 76.7% | 1 |
| February 2026 | 28 | 28 | 89.3% | 0 |
| March 2026 | 31 | 31 | 64.5% | 0 |
| April 2026 | 30 | 29 | 93.1% | 1 |
| May 2026 | 42 | 42 | 88.1% | 0 |
| June 2026 | 60 | 60 | 80.0% | 0 |
| July 2026 | 61 | 61 | 73.8% | 0 |