UA624
UA624 (United Airlines) is a multi-stop service on 23 routes, busiest Denver to Las Vegas. Of 745 departures recorded from October 2024 to July 2026, 74.4% left on time, according to the US BTS.
- On-time departures74.4%of 745 flights
- Average delay17.7 min
- July 202630▼ 3.2%vs July 2025
- Cancelled0.5%
- Legs flown under this number23
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 | 24 | 7 | ▼ 70.8% |
| February | 20 | 31 | ▲ 55.0% |
| March | 53 | 48 | ▼ 9.4% |
| April | 30 | 49 | ▲ 63.3% |
| May | 21 | 59 | ▲ 181.0% |
| June | 18 | 30 | ▲ 66.7% |
| July | 31 | 30 | ▼ 3.2% |
| August | 26 | – | – |
| September | 44 | – | – |
| October | 57 | – | in progress |
| November | 48 | – | – |
| December | 38 | – | – |
| Year to date (Jan–Jul) | 197 | 254 | ▲ 28.9% |
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 | 95.8% | 57.1% | ▼ 40.4% |
| February | 85.0% | 74.2% | ▼ 12.7% |
| March | 79.3% | 81.3% | ▲ 2.5% |
| April | 75.9% | 85.7% | ▲ 13.0% |
| May | 57.1% | 65.5% | ▲ 14.7% |
| June | 76.5% | 66.7% | ▼ 12.8% |
| July | 54.8% | 69.0% | ▲ 25.8% |
| August | 53.9% | – | – |
| September | 70.5% | – | – |
| October | 80.7% | – | in progress |
| November | 70.8% | – | – |
| December | 55.3% | – | – |
| Year-to-date average (Jan–Jul) | 74.9% | 71.4% | ▼ 4.8% |
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 | 1 | 0 | ▼ 100.0% |
| May | 0 | 1 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | 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 99.5% 741
- Cancelled 0.5% 4
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN LAS Denver International Airport – Harry Reid International Airport | 1,009 | 21.0 min | 66.7% | 157 |
| PHX DEN Phoenix Sky Harbor International Airport – Denver International Airport | 968 | 18.5 min | 75.6% | 124 |
| SNA DEN John Wayne Orange County International Airport – Denver International Airport | 1,360 | 12.1 min | 75.9% | 84 |
| SAT DEN San Antonio International Airport – Denver International Airport | 1,280 | 55.5 min | 55.6% | 54 |
| CLE FLL Cleveland Hopkins International Airport – Fort Lauderdale Hollywood International Airport | 1,713 | 2.3 min | 86.7% | 45 |
| AUS DEN Austin Bergstrom International Airport – Denver International Airport | 1,249 | 23.0 min | 65.9% | 44 |
| SFO EWR San Francisco International Airport – Newark Liberty International Airport | 4,118 | 0.9 min | 94.6% | 37 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 30 | 30 | 93.3% | 0 |
| December 2024 | 31 | 31 | 83.9% | 0 |
| January 2025 | 24 | 24 | 95.8% | 0 |
| February 2025 | 20 | 20 | 85.0% | 0 |
| March 2025 | 53 | 53 | 79.3% | 0 |
| April 2025 | 30 | 29 | 75.9% | 1 |
| May 2025 | 21 | 21 | 57.1% | 0 |
| June 2025 | 18 | 17 | 76.5% | 1 |
| July 2025 | 31 | 31 | 54.8% | 0 |
| August 2025 | 26 | 26 | 53.9% | 0 |
| September 2025 | 44 | 44 | 70.5% | 0 |
| October 2025 | 57 | 57 | 80.7% | 0 |
| November 2025 | 48 | 48 | 70.8% | 0 |
| December 2025 | 38 | 38 | 55.3% | 0 |
| January 2026 | 7 | 7 | 57.1% | 0 |
| February 2026 | 31 | 31 | 74.2% | 0 |
| March 2026 | 48 | 48 | 81.3% | 0 |
| April 2026 | 49 | 49 | 85.7% | 0 |
| May 2026 | 59 | 58 | 65.5% | 1 |
| June 2026 | 30 | 30 | 66.7% | 0 |
| July 2026 | 30 | 29 | 69.0% | 1 |