UA791
UA791 (United Airlines) is a multi-stop service on 11 routes, busiest Chicago to Denver. Of 798 departures recorded from October 2024 to July 2026, 87.5% left on time, according to the US BTS.
- On-time departures87.5%of 798 flights
- Average delay6.0 min
- July 202630▼ 3.2%vs July 2025
- Cancelled0.6%
- Legs flown under this number11
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 40 | 44 | ▲ 10.0% |
| March | 33 | 35 | ▲ 6.1% |
| April | 60 | 30 | ▼ 50.0% |
| May | 31 | 31 | 0.0% |
| June | 30 | 30 | 0.0% |
| July | 31 | 30 | ▼ 3.2% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 281 | 231 | ▼ 17.8% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 75.0% | 93.6% | ▲ 24.7% |
| February | 85.0% | 97.7% | ▲ 14.9% |
| March | 90.6% | 88.6% | ▼ 2.3% |
| April | 76.7% | 96.7% | ▲ 26.1% |
| May | 83.9% | 80.0% | ▼ 4.6% |
| June | 76.7% | 73.3% | ▼ 4.4% |
| July | 100.0% | 60.7% | ▼ 39.3% |
| August | 93.6% | – | – |
| September | 96.7% | – | – |
| October | 100.0% | – | in progress |
| November | 96.7% | – | – |
| December | 100.0% | – | – |
| Year-to-date average (Jan–Jul) | 84.0% | 84.4% | ▲ 0.5% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 1 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 0 | 2 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 4 | ▲ 300.0% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.4% 793
- 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
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD DEN Chicago O'Hare International Airport – Denver International Airport | 1,426 | -1.0 min | 95.7% | 303 |
| DEN TUS Denver International Airport – Tucson International Airport | 1,029 | 9.2 min | 80.8% | 156 |
| DEN MEM Denver International Airport – Frederick W. Smith International Airport | 1,401 | 2.5 min | 90.6% | 98 |
| SAT DEN San Antonio International Airport – Denver International Airport | 1,280 | 5.6 min | 91.7% | 61 |
| ORF DEN Norfolk International Airport – Denver International Airport | 2,493 | 9.0 min | 81.1% | 37 |
| BWI ORD Baltimore/Washington International Thurgood Marshall Airport – Chicago O'Hare International Airport | 998 | 45.9 min | 67.7% | 36 |
| DEN FCA Denver International Airport – Glacier Park International Airport | 1,210 | 11.0 min | 68.6% | 35 |
| CLT DEN Charlotte Douglas International Airport – Denver International Airport | 2,148 | 23.0 min | 68.6% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 35 | 35 | 88.6% | 0 |
| November 2024 | 49 | 49 | 85.7% | 0 |
| December 2024 | 49 | 49 | 95.9% | 0 |
| January 2025 | 56 | 56 | 75.0% | 0 |
| February 2025 | 40 | 40 | 85.0% | 0 |
| March 2025 | 33 | 32 | 90.6% | 1 |
| April 2025 | 60 | 60 | 76.7% | 0 |
| May 2025 | 31 | 31 | 83.9% | 0 |
| June 2025 | 30 | 30 | 76.7% | 0 |
| July 2025 | 31 | 31 | 100.0% | 0 |
| August 2025 | 31 | 31 | 93.6% | 0 |
| September 2025 | 30 | 30 | 96.7% | 0 |
| October 2025 | 31 | 31 | 100.0% | 0 |
| November 2025 | 30 | 30 | 96.7% | 0 |
| December 2025 | 31 | 31 | 100.0% | 0 |
| January 2026 | 31 | 31 | 93.6% | 0 |
| February 2026 | 44 | 43 | 97.7% | 1 |
| March 2026 | 35 | 35 | 88.6% | 0 |
| April 2026 | 30 | 30 | 96.7% | 0 |
| May 2026 | 31 | 30 | 80.0% | 1 |
| June 2026 | 30 | 30 | 73.3% | 0 |
| July 2026 | 30 | 28 | 60.7% | 2 |