UA1799
UA1799 (United Airlines) is a multi-stop service on 14 routes, busiest Houston to Las Vegas. Of 1,295 departures recorded from October 2024 to July 2026, 83.7% left on time, according to the US BTS.
- On-time departures83.7%of 1,295 flights
- Average delay8.4 min
- July 202693▲ 200.0%vs July 2025
- Cancelled0.5%
- Legs flown under this number14
according to the US BTS · Oct 12, 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 | 31 | 36 | ▲ 16.1% |
| February | 28 | 59 | ▲ 110.7% |
| March | 54 | 90 | ▲ 66.7% |
| April | 30 | 66 | ▲ 120.0% |
| May | 52 | 89 | ▲ 71.2% |
| June | 30 | 90 | ▲ 200.0% |
| July | 31 | 93 | ▲ 200.0% |
| August | 57 | – | – |
| September | 67 | – | – |
| October | 93 | – | in progress |
| November | 88 | – | – |
| December | 63 | – | – |
| Year to date (Jan–Jul) | 256 | 523 | ▲ 104.3% |
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 | 73.3% | 85.7% | ▲ 16.9% |
| February | 92.9% | 78.0% | ▼ 16.0% |
| March | 90.7% | 94.4% | ▲ 4.0% |
| April | 96.7% | 74.2% | ▼ 23.2% |
| May | 82.4% | 74.2% | ▼ 9.9% |
| June | 80.0% | 72.2% | ▼ 9.7% |
| July | 93.6% | 74.2% | ▼ 20.7% |
| August | 91.2% | – | – |
| September | 97.0% | – | – |
| October | 87.1% | – | in progress |
| November | 77.9% | – | – |
| December | 90.5% | – | – |
| Year-to-date average (Jan–Jul) | 87.1% | 79.0% | ▼ 9.3% |
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 | 1 | 1 | 0.0% |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 2 | 0.0% |
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 99.5% 1,288
- Cancelled 0.5% 7
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
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| IAH LAS George Bush Intercontinental Airport – Harry Reid International Airport | 1,963 | 5.6 min | 87.8% | 658 |
| LAS SFO Harry Reid International Airport – San Francisco International Airport | 665 | 20.6 min | 67.8% | 291 |
| ORD IAH Chicago O'Hare International Airport – George Bush Intercontinental Airport | 1,491 | -2.0 min | 97.2% | 72 |
| SFO SBA San Francisco International Airport – Santa Barbara Municipal Airport | 422 | -2.6 min | 95.1% | 41 |
| MEM IAH Frederick W. Smith International Airport – George Bush Intercontinental Airport | 754 | -3.9 min | 97.3% | 37 |
| SFO SAN San Francisco International Airport – San Diego International Airport | 719 | 10.7 min | 80.6% | 36 |
| LAS EWR Harry Reid International Airport – Newark Liberty International Airport | 3,576 | 14.9 min | 75.0% | 36 |
| SFO MFR San Francisco International Airport – Rogue Valley International-Medford Airport | 530 | -4.9 min | 96.8% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 40 | 87.5% | 0 |
| November 2024 | 59 | 59 | 84.8% | 0 |
| December 2024 | 49 | 48 | 85.4% | 1 |
| January 2025 | 31 | 30 | 73.3% | 1 |
| February 2025 | 28 | 28 | 92.9% | 0 |
| March 2025 | 54 | 54 | 90.7% | 0 |
| April 2025 | 30 | 30 | 96.7% | 0 |
| May 2025 | 52 | 51 | 82.4% | 1 |
| June 2025 | 30 | 30 | 80.0% | 0 |
| July 2025 | 31 | 31 | 93.6% | 0 |
| August 2025 | 57 | 57 | 91.2% | 0 |
| September 2025 | 67 | 67 | 97.0% | 0 |
| October 2025 | 93 | 93 | 87.1% | 0 |
| November 2025 | 88 | 86 | 77.9% | 2 |
| December 2025 | 63 | 63 | 90.5% | 0 |
| January 2026 | 36 | 35 | 85.7% | 1 |
| February 2026 | 59 | 59 | 78.0% | 0 |
| March 2026 | 90 | 89 | 94.4% | 1 |
| April 2026 | 66 | 66 | 74.2% | 0 |
| May 2026 | 89 | 89 | 74.2% | 0 |
| June 2026 | 90 | 90 | 72.2% | 0 |
| July 2026 | 93 | 93 | 74.2% | 0 |