UA507
UA507 (United Airlines) is a multi-stop service on 11 routes, busiest Denver to St Louis. Of 287 departures recorded from October 2024 to March 2026, 86.7% left on time, according to the US BTS.
- On-time departures86.7%of 287 flights
- Average delay3.5 min
- March 20264▼ 20.0%vs March 2025
- Cancelled0.4%
- Legs flown under this number11
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods9 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 23 | ▼ 25.8% |
| February | 28 | 27 | ▼ 3.6% |
| March | 5 | 4 | ▼ 20.0% |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | 12 | – | in progress |
| November | 59 | – | – |
| December | 32 | – | – |
| Year to date (Jan–Mar) | 64 | 54 | ▼ 15.6% |
according to the US BTS · October 2024 → March 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 periods9 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 93.6% | 77.3% | ▼ 17.4% |
| February | 71.4% | 88.9% | ▲ 24.4% |
| March | 100.0% | 100.0% | 0.0% |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | 83.3% | – | in progress |
| November | 89.8% | – | – |
| December | 75.0% | – | – |
| Year-to-date average (Jan–Mar) | 88.3% | 88.7% | ▲ 0.4% |
according to the US BTS · October 2024 → March 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → March 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods9 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Mar) | 0 | 1 |
according to the US BTS · October 2024 → March 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% 286
- Cancelled 0.3% 1
Share of all recorded flights in the period, all legs. · Oct 27, 2024 → Mar 4, 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 |
|---|---|---|---|---|
| IAH LAS George Bush Intercontinental Airport – Harry Reid International Airport | 1,963 | 7.5 min | 81.1% | 37 |
| GSP IAH Greenville-Spartanburg International Airport – George Bush Intercontinental Airport | 1,346 | 1.0 min | 94.6% | 37 |
| DEN STL Denver International Airport – St. Louis Lambert International Airport | 1,236 | 4.2 min | 89.2% | 37 |
| LAS DEN Harry Reid International Airport – Denver International Airport | 1,009 | -4.8 min | 97.2% | 36 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 5 | 5 | 100.0% | 0 |
| November 2024 | 30 | 30 | 93.3% | 0 |
| December 2024 | 31 | 31 | 93.6% | 0 |
| January 2025 | 31 | 31 | 93.6% | 0 |
| February 2025 | 28 | 28 | 71.4% | 0 |
| March 2025 | 5 | 5 | 100.0% | 0 |
| October 2025 | 12 | 12 | 83.3% | 0 |
| November 2025 | 59 | 59 | 89.8% | 0 |
| December 2025 | 32 | 32 | 75.0% | 0 |
| January 2026 | 23 | 22 | 77.3% | 1 |
| February 2026 | 27 | 27 | 88.9% | 0 |
| March 2026 | 4 | 4 | 100.0% | 0 |