UA525
UA525 (United Airlines) is a multi-stop service on 8 routes, busiest Austin to Dulles. Of 619 departures recorded from November 2024 to July 2026, 90.4% left on time, according to the US BTS.
- On-time departures90.4%of 619 flights
- Average delay3.4 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.1%
- Legs flown under this number8
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 | 23 | ▼ 25.8% |
| February | 28 | 22 | ▼ 21.4% |
| March | 31 | 30 | ▼ 3.2% |
| April | 30 | 30 | 0.0% |
| May | 31 | 31 | 0.0% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 30 | – | – |
| September | 27 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 212 | 197 | ▼ 7.1% |
according to the US BTS · November 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 | 93.6% | 90.5% | ▼ 3.3% |
| February | 85.7% | 100.0% | ▲ 16.7% |
| March | 73.3% | 93.3% | ▲ 27.3% |
| April | 79.3% | 96.7% | ▲ 21.9% |
| May | 93.6% | 93.6% | 0.0% |
| June | 90.0% | 93.1% | ▲ 3.4% |
| July | 83.9% | 96.7% | ▲ 15.3% |
| August | 93.1% | – | – |
| September | 96.3% | – | – |
| October | 100.0% | – | in progress |
| November | 90.0% | – | – |
| December | 80.7% | – | – |
| Year-to-date average (Jan–Jul) | 85.6% | 94.8% | ▲ 10.8% |
according to the US BTS · November 2024 → July 2026
Average departure delay by month
according to the US BTS · November 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 2 | – |
| February | 0 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 0 | 1 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 4 | ▲ 100.0% |
according to the US BTS · November 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 98.9% 612
- Cancelled 1.1% 7
Share of all recorded flights in the period, all legs. · Nov 1, 2024 → Jul 31, 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 |
|---|---|---|---|---|
| AUS IAD Austin Bergstrom International Airport – Washington Dulles International Airport | 2,084 | -0.5 min | 93.0% | 419 |
| EWR SFO Newark Liberty International Airport – San Francisco International Airport | 4,118 | 6.3 min | 89.6% | 48 |
| EWR DEN Newark Liberty International Airport – Denver International Airport | 2,576 | 6.7 min | 89.2% | 37 |
| DEN STL Denver International Airport – St. Louis Lambert International Airport | 1,236 | 27.4 min | 74.2% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 30 | 30 | 86.7% | 0 |
| December 2024 | 31 | 31 | 90.3% | 0 |
| January 2025 | 31 | 31 | 93.6% | 0 |
| February 2025 | 28 | 28 | 85.7% | 0 |
| March 2025 | 31 | 30 | 73.3% | 1 |
| April 2025 | 30 | 29 | 79.3% | 1 |
| May 2025 | 31 | 31 | 93.6% | 0 |
| June 2025 | 30 | 30 | 90.0% | 0 |
| July 2025 | 31 | 31 | 83.9% | 0 |
| August 2025 | 30 | 29 | 93.1% | 1 |
| September 2025 | 27 | 27 | 96.3% | 0 |
| October 2025 | 31 | 31 | 100.0% | 0 |
| November 2025 | 30 | 30 | 90.0% | 0 |
| December 2025 | 31 | 31 | 80.7% | 0 |
| January 2026 | 23 | 21 | 90.5% | 2 |
| February 2026 | 22 | 22 | 100.0% | 0 |
| March 2026 | 30 | 30 | 93.3% | 0 |
| April 2026 | 30 | 30 | 96.7% | 0 |
| May 2026 | 31 | 31 | 93.6% | 0 |
| June 2026 | 30 | 29 | 93.1% | 1 |
| July 2026 | 31 | 30 | 96.7% | 1 |