UA1573
UA1573 (United Airlines) is a multi-stop service on 14 routes, busiest Los Angeles to Dulles. Of 611 departures recorded from October 2024 to July 2026, 85.1% left on time, according to the US BTS.
- On-time departures85.1%of 611 flights
- Average delay8.0 min
- July 202630▲ 7.1%vs July 2025
- Cancelled1.0%
- Legs flown under this number14
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 | 38 | ▲ 22.6% |
| February | 22 | 30 | ▲ 36.4% |
| March | 17 | 31 | ▲ 82.4% |
| April | 17 | 30 | ▲ 76.5% |
| May | 27 | 31 | ▲ 14.8% |
| June | 52 | 30 | ▼ 42.3% |
| July | 28 | 30 | ▲ 7.1% |
| August | 28 | – | – |
| September | 22 | – | – |
| October | 17 | – | in progress |
| November | 20 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 194 | 220 | ▲ 13.4% |
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 | 72.4% | 63.9% | ▼ 11.8% |
| February | 86.4% | 79.3% | ▼ 8.2% |
| March | 100.0% | 66.7% | ▼ 33.3% |
| April | 94.1% | 90.0% | ▼ 4.4% |
| May | 96.3% | 93.6% | ▼ 2.9% |
| June | 82.7% | 86.7% | ▲ 4.8% |
| July | 53.6% | 83.3% | ▲ 55.6% |
| August | 92.9% | – | – |
| September | 100.0% | – | – |
| October | 88.2% | – | in progress |
| November | 95.0% | – | – |
| December | 93.6% | – | – |
| Year-to-date average (Jan–Jul) | 83.6% | 80.5% | ▼ 3.8% |
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 | 2 | 2 | 0.0% |
| February | 0 | 1 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 4 | ▲ 100.0% |
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 99.0% 605
- Cancelled 1.0% 6
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| LAX IAD Los Angeles International Airport – Washington Dulles International Airport | 3,674 | 5.9 min | 87.8% | 409 |
| IAH RSW George Bush Intercontinental Airport – Southwest Florida International Airport | 1,384 | 10.1 min | 80.6% | 37 |
| ORD DTW Chicago O'Hare International Airport – Detroit Metropolitan Wayne County Airport | 376 | 18.5 min | 62.9% | 36 |
| SFO LAX San Francisco International Airport – Los Angeles International Airport | 543 | 0.5 min | 93.3% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 28 | 28 | 92.9% | 0 |
| December 2024 | 31 | 31 | 93.6% | 0 |
| January 2025 | 31 | 29 | 72.4% | 2 |
| February 2025 | 22 | 22 | 86.4% | 0 |
| March 2025 | 17 | 17 | 100.0% | 0 |
| April 2025 | 17 | 17 | 94.1% | 0 |
| May 2025 | 27 | 27 | 96.3% | 0 |
| June 2025 | 52 | 52 | 82.7% | 0 |
| July 2025 | 28 | 28 | 53.6% | 0 |
| August 2025 | 28 | 28 | 92.9% | 0 |
| September 2025 | 22 | 22 | 100.0% | 0 |
| October 2025 | 17 | 17 | 88.2% | 0 |
| November 2025 | 20 | 20 | 95.0% | 0 |
| December 2025 | 31 | 31 | 93.6% | 0 |
| January 2026 | 38 | 36 | 63.9% | 2 |
| February 2026 | 30 | 29 | 79.3% | 1 |
| March 2026 | 31 | 30 | 66.7% | 1 |
| April 2026 | 30 | 30 | 90.0% | 0 |
| May 2026 | 31 | 31 | 93.6% | 0 |
| June 2026 | 30 | 30 | 86.7% | 0 |
| July 2026 | 30 | 30 | 83.3% | 0 |