UA2399
UA2399 (United Airlines) is a multi-stop service on 7 routes, busiest Houston to San Diego. Of 791 departures recorded from October 2024 to July 2026, 84.9% left on time, according to the US BTS.
- On-time departures84.9%of 791 flights
- Average delay8.1 min
- July 202662▲ 169.6%vs July 2025
- Cancelled0.3%
- Legs flown under this number7
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 | 62 | 31 | ▼ 50.0% |
| February | 56 | 27 | ▼ 51.8% |
| March | 36 | 31 | ▼ 13.9% |
| April | 30 | 31 | ▲ 3.3% |
| May | 27 | 61 | ▲ 125.9% |
| June | 17 | 57 | ▲ 235.3% |
| July | 23 | 62 | ▲ 169.6% |
| August | 25 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 251 | 300 | ▲ 19.5% |
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 | 80.0% | 100.0% | ▲ 25.0% |
| February | 78.6% | 100.0% | ▲ 27.3% |
| March | 75.0% | 96.8% | ▲ 29.0% |
| April | 90.0% | 96.8% | ▲ 7.5% |
| May | 88.9% | 85.3% | ▼ 4.1% |
| June | 58.8% | 77.2% | ▲ 31.2% |
| July | 60.9% | 87.1% | ▲ 43.1% |
| August | 72.0% | – | – |
| September | 93.3% | – | – |
| October | 87.1% | – | in progress |
| November | 75.9% | – | – |
| December | 96.8% | – | – |
| Year-to-date average (Jan–Jul) | 76.0% | 91.9% | ▲ 20.8% |
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 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| 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 | 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 99.7% 789
- Cancelled 0.3% 2
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 SAN George Bush Intercontinental Airport – San Diego International Airport | 2,093 | 9.9 min | 78.9% | 251 |
| OMA IAH Eppley Airfield – George Bush Intercontinental Airport | 1,260 | -0.1 min | 94.6% | 221 |
| IAH SAT George Bush Intercontinental Airport – San Antonio International Airport | 306 | 15.5 min | 75.2% | 142 |
| MCO IAH Orlando International Airport – George Bush Intercontinental Airport | 1,372 | 15.0 min | 89.7% | 87 |
| PHX IAH Phoenix Sky Harbor International Airport – George Bush Intercontinental Airport | 1,620 | 4.7 min | 91.7% | 37 |
| IND DEN Indianapolis International Airport – Denver International Airport | 1,568 | 7.3 min | 90.6% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 30 | 30 | 90.0% | 0 |
| December 2024 | 44 | 44 | 81.8% | 0 |
| January 2025 | 62 | 60 | 80.0% | 2 |
| February 2025 | 56 | 56 | 78.6% | 0 |
| March 2025 | 36 | 36 | 75.0% | 0 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 27 | 27 | 88.9% | 0 |
| June 2025 | 17 | 17 | 58.8% | 0 |
| July 2025 | 23 | 23 | 60.9% | 0 |
| August 2025 | 25 | 25 | 72.0% | 0 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 31 | 31 | 87.1% | 0 |
| November 2025 | 29 | 29 | 75.9% | 0 |
| December 2025 | 31 | 31 | 96.8% | 0 |
| January 2026 | 31 | 31 | 100.0% | 0 |
| February 2026 | 27 | 27 | 100.0% | 0 |
| March 2026 | 31 | 31 | 96.8% | 0 |
| April 2026 | 31 | 31 | 96.8% | 0 |
| May 2026 | 61 | 61 | 85.3% | 0 |
| June 2026 | 57 | 57 | 77.2% | 0 |
| July 2026 | 62 | 62 | 87.1% | 0 |