UA1859
UA1859 (United Airlines) is a multi-stop service on 16 routes, busiest Houston to Austin. Of 937 departures recorded from October 2024 to July 2026, 85.5% left on time, according to the US BTS.
- On-time departures85.5%of 937 flights
- Average delay8.4 min
- July 202661▲ 96.8%vs July 2025
- Cancelled1.4%
- Legs flown under this number16
according to the US BTS · Oct 13, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 28 | 30 | ▲ 7.1% |
| February | 38 | 45 | ▲ 18.4% |
| March | 31 | 34 | ▲ 9.7% |
| April | 79 | 60 | ▼ 24.1% |
| May | 60 | 58 | ▼ 3.3% |
| June | 47 | 59 | ▲ 25.5% |
| July | 31 | 61 | ▲ 96.8% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 37 | – | in progress |
| November | 58 | – | – |
| December | 47 | – | – |
| Year to date (Jan–Jul) | 314 | 347 | ▲ 10.5% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 75.0% | 89.3% | ▲ 19.1% |
| February | 89.5% | 97.7% | ▲ 9.2% |
| March | 87.1% | 91.2% | ▲ 4.7% |
| April | 89.7% | 93.3% | ▲ 4.0% |
| May | 88.1% | 94.8% | ▲ 7.6% |
| June | 76.6% | 86.4% | ▲ 12.8% |
| July | 64.5% | 86.9% | ▲ 34.7% |
| August | 71.0% | – | – |
| September | 93.3% | – | – |
| October | 75.7% | – | in progress |
| November | 72.7% | – | – |
| December | 85.1% | – | – |
| Year-to-date average (Jan–Jul) | 81.5% | 91.4% | ▲ 12.1% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 4 | 2 | ▼ 50.0% |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 6 | 3 | ▼ 50.0% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 98.6% 924
- Cancelled 1.4% 13
Share of all recorded flights in the period, all legs. · Oct 13, 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 |
|---|---|---|---|---|
| IAH AUS George Bush Intercontinental Airport – Austin Bergstrom International Airport | 225 | 4.3 min | 86.3% | 318 |
| PIT IAH Pittsburgh International Airport – George Bush Intercontinental Airport | 1,798 | -1.9 min | 96.0% | 124 |
| ATL ORD Hartsfield Jackson Atlanta International Airport – Chicago O'Hare International Airport | 976 | 6.1 min | 89.2% | 105 |
| SAV ORD Savannah Hilton Head International Airport – Chicago O'Hare International Airport | 1,246 | 4.1 min | 89.5% | 96 |
| ORD SNA Chicago O'Hare International Airport – John Wayne Orange County International Airport | 2,772 | 28.7 min | 64.0% | 89 |
| ORD LAS Chicago O'Hare International Airport – Harry Reid International Airport | 2,432 | 6.8 min | 90.0% | 50 |
| AUS EWR Austin Bergstrom International Airport – Newark Liberty International Airport | 2,416 | 60.9 min | 60.0% | 36 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 16 | 100.0% | 1 |
| November 2024 | 25 | 25 | 88.0% | 0 |
| December 2024 | 31 | 31 | 74.2% | 0 |
| January 2025 | 28 | 24 | 75.0% | 4 |
| February 2025 | 38 | 38 | 89.5% | 0 |
| March 2025 | 31 | 31 | 87.1% | 0 |
| April 2025 | 79 | 78 | 89.7% | 1 |
| May 2025 | 60 | 59 | 88.1% | 1 |
| June 2025 | 47 | 47 | 76.6% | 0 |
| July 2025 | 31 | 31 | 64.5% | 0 |
| August 2025 | 31 | 31 | 71.0% | 0 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 37 | 37 | 75.7% | 0 |
| November 2025 | 58 | 55 | 72.7% | 3 |
| December 2025 | 47 | 47 | 85.1% | 0 |
| January 2026 | 30 | 28 | 89.3% | 2 |
| February 2026 | 45 | 44 | 97.7% | 1 |
| March 2026 | 34 | 34 | 91.2% | 0 |
| April 2026 | 60 | 60 | 93.3% | 0 |
| May 2026 | 58 | 58 | 94.8% | 0 |
| June 2026 | 59 | 59 | 86.4% | 0 |
| July 2026 | 61 | 61 | 86.9% | 0 |