UA1563
UA1563 (United Airlines) is a multi-stop service on 10 routes, busiest Houston to Ontario. Of 830 departures recorded from October 2024 to July 2026, 74.2% left on time, according to the US BTS.
- On-time departures74.2%of 830 flights
- Average delay17.0 min
- July 202631▼ 49.2%vs July 2025
- Cancelled0.5%
- Legs flown under this number10
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 | 44 | 31 | ▼ 29.5% |
| February | 34 | 28 | ▼ 17.6% |
| March | 31 | 31 | 0.0% |
| April | 30 | 60 | ▲ 100.0% |
| May | 41 | 51 | ▲ 24.4% |
| June | 60 | 30 | ▼ 50.0% |
| July | 61 | 31 | ▼ 49.2% |
| August | 24 | – | – |
| September | 26 | – | – |
| October | 56 | – | in progress |
| November | 29 | – | – |
| December | 47 | – | – |
| Year to date (Jan–Jul) | 301 | 262 | ▼ 13.0% |
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 | 72.1% | 93.6% | ▲ 29.8% |
| February | 85.3% | 75.0% | ▼ 12.1% |
| March | 71.0% | 71.0% | 0.0% |
| April | 83.3% | 81.7% | ▼ 2.0% |
| May | 63.4% | 82.4% | ▲ 29.9% |
| June | 57.6% | 66.7% | ▲ 15.7% |
| July | 63.9% | 61.3% | ▼ 4.1% |
| August | 58.3% | – | – |
| September | 80.8% | – | – |
| October | 82.1% | – | in progress |
| November | 58.6% | – | – |
| December | 80.9% | – | – |
| Year-to-date average (Jan–Jul) | 71.0% | 75.9% | ▲ 7.0% |
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 | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 0 | ▼ 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 99.5% 826
- 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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| IAH ONT George Bush Intercontinental Airport – Ontario International Airport | 2,142 | 20.1 min | 69.7% | 548 |
| PIT IAH Pittsburgh International Airport – George Bush Intercontinental Airport | 1,798 | 6.0 min | 83.5% | 85 |
| SEA IAH Seattle–Tacoma International Airport – George Bush Intercontinental Airport | 3,013 | 7.2 min | 80.6% | 36 |
| EWR SNA Newark Liberty International Airport – John Wayne Orange County International Airport | 3,908 | 1.0 min | 91.4% | 36 |
| MIA IAH Miami International Airport – George Bush Intercontinental Airport | 1,549 | 43.7 min | 68.6% | 35 |
| TPA IAH Tampa International Airport – George Bush Intercontinental Airport | 1,265 | 11.9 min | 87.5% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 25 | 25 | 92.0% | 0 |
| November 2024 | 29 | 28 | 92.9% | 1 |
| December 2024 | 31 | 30 | 66.7% | 1 |
| January 2025 | 44 | 43 | 72.1% | 1 |
| February 2025 | 34 | 34 | 85.3% | 0 |
| March 2025 | 31 | 31 | 71.0% | 0 |
| April 2025 | 30 | 30 | 83.3% | 0 |
| May 2025 | 41 | 41 | 63.4% | 0 |
| June 2025 | 60 | 59 | 57.6% | 1 |
| July 2025 | 61 | 61 | 63.9% | 0 |
| August 2025 | 24 | 24 | 58.3% | 0 |
| September 2025 | 26 | 26 | 80.8% | 0 |
| October 2025 | 56 | 56 | 82.1% | 0 |
| November 2025 | 29 | 29 | 58.6% | 0 |
| December 2025 | 47 | 47 | 80.9% | 0 |
| January 2026 | 31 | 31 | 93.6% | 0 |
| February 2026 | 28 | 28 | 75.0% | 0 |
| March 2026 | 31 | 31 | 71.0% | 0 |
| April 2026 | 60 | 60 | 81.7% | 0 |
| May 2026 | 51 | 51 | 82.4% | 0 |
| June 2026 | 30 | 30 | 66.7% | 0 |
| July 2026 | 31 | 31 | 61.3% | 0 |