UA1177
UA1177 (United Airlines) is a multi-stop service on 8 routes, busiest Dallas-Fort Worth to Denver. Of 232 departures recorded from October 2024 to May 2026, 89.1% left on time, according to the US BTS.
- On-time departures89.1%of 232 flights
- Average delay5.2 min
- May 202617
- Cancelled0.9%
- Legs flown under this number8
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods12 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 25 | – | – |
| February | 28 | 17 | ▼ 39.3% |
| March | 5 | 4 | ▼ 20.0% |
| April | – | 1 | – |
| May | – | 17 | – |
| June | – | – | – |
| July | – | – | – |
| August | 13 | – | – |
| September | 1 | – | – |
| October | 6 | – | in progress |
| November | 30 | – | – |
| December | 17 | – | – |
according to the US BTS · October 2024 → May 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods12 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 91.7% | – | – |
| February | 85.7% | 88.2% | ▲ 3.0% |
| March | 80.0% | 100.0% | ▲ 25.0% |
| April | – | 100.0% | – |
| May | – | 94.1% | – |
| June | – | – | – |
| July | – | – | – |
| August | 84.6% | – | – |
| September | 100.0% | – | – |
| October | 100.0% | – | in progress |
| November | 79.3% | – | – |
| December | 82.4% | – | – |
according to the US BTS · October 2024 → May 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → May 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods12 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | – | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | – | – | – |
| July | – | – | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
according to the US BTS · October 2024 → May 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 99.1% 230
- Cancelled 0.9% 2
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → May 20, 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 |
|---|---|---|---|---|
| DFW DEN Dallas Fort Worth International Airport – Denver International Airport | 1,032 | 7.9 min | 82.7% | 53 |
| SAN IAH San Diego International Airport – George Bush Intercontinental Airport | 2,093 | -3.0 min | 94.4% | 37 |
| IAH SAT George Bush Intercontinental Airport – San Antonio International Airport | 306 | 0.5 min | 94.6% | 37 |
| DTW DEN Detroit Metropolitan Wayne County Airport – Denver International Airport | 1,802 | 4.7 min | 80.0% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 30 | 30 | 93.3% | 0 |
| December 2024 | 18 | 18 | 88.9% | 0 |
| January 2025 | 25 | 24 | 91.7% | 1 |
| February 2025 | 28 | 28 | 85.7% | 0 |
| March 2025 | 5 | 5 | 80.0% | 0 |
| August 2025 | 13 | 13 | 84.6% | 0 |
| September 2025 | 1 | 1 | 100.0% | 0 |
| October 2025 | 6 | 6 | 100.0% | 0 |
| November 2025 | 30 | 29 | 79.3% | 1 |
| December 2025 | 17 | 17 | 82.4% | 0 |
| February 2026 | 17 | 17 | 88.2% | 0 |
| March 2026 | 4 | 4 | 100.0% | 0 |
| April 2026 | 1 | 1 | 100.0% | 0 |
| May 2026 | 17 | 17 | 94.1% | 0 |