UA2423
UA2423 (United Airlines) is a multi-stop service on 6 routes, busiest Miami to San Francisco. Of 738 departures recorded from October 2024 to July 2026, 77.3% left on time, according to the US BTS.
- On-time departures77.3%of 738 flights
- Average delay15.0 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.3%
- Legs flown under this number6
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 | 31 | 0.0% |
| February | 40 | 45 | ▲ 12.5% |
| March | 60 | 35 | ▼ 41.7% |
| April | 55 | 30 | ▼ 45.5% |
| May | 48 | 31 | ▼ 35.4% |
| June | 27 | 30 | ▲ 11.1% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 292 | 233 | ▼ 20.2% |
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 | 90.0% | 48.4% | ▼ 46.2% |
| February | 85.0% | 64.4% | ▼ 24.2% |
| March | 78.3% | 68.6% | ▼ 12.5% |
| April | 94.6% | 93.3% | ▼ 1.3% |
| May | 81.3% | 96.8% | ▲ 19.1% |
| June | 77.8% | 93.3% | ▲ 20.0% |
| July | 58.1% | 87.1% | ▲ 50.0% |
| August | 40.0% | – | – |
| September | 60.0% | – | – |
| October | 83.9% | – | in progress |
| November | 73.3% | – | – |
| December | 67.7% | – | – |
| Year-to-date average (Jan–Jul) | 80.7% | 78.8% | ▼ 2.3% |
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 | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 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% 736
- Cancelled 0.3% 2
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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MIA SFO Miami International Airport – San Francisco International Airport | 4,154 | 28.5 min | 63.8% | 352 |
| SFO BWI San Francisco International Airport – Baltimore/Washington International Thurgood Marshall Airport | 3,944 | 4.4 min | 88.2% | 222 |
| EWR SNA Newark Liberty International Airport – John Wayne Orange County International Airport | 3,908 | -1.5 min | 92.0% | 125 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 11 | 11 | 81.8% | 0 |
| November 2024 | 18 | 18 | 88.9% | 0 |
| December 2024 | 31 | 31 | 83.9% | 0 |
| January 2025 | 31 | 30 | 90.0% | 1 |
| February 2025 | 40 | 40 | 85.0% | 0 |
| March 2025 | 60 | 60 | 78.3% | 0 |
| April 2025 | 55 | 55 | 94.6% | 0 |
| May 2025 | 48 | 48 | 81.3% | 0 |
| June 2025 | 27 | 27 | 77.8% | 0 |
| July 2025 | 31 | 31 | 58.1% | 0 |
| August 2025 | 31 | 30 | 40.0% | 1 |
| September 2025 | 30 | 30 | 60.0% | 0 |
| October 2025 | 31 | 31 | 83.9% | 0 |
| November 2025 | 30 | 30 | 73.3% | 0 |
| December 2025 | 31 | 31 | 67.7% | 0 |
| January 2026 | 31 | 31 | 48.4% | 0 |
| February 2026 | 45 | 45 | 64.4% | 0 |
| March 2026 | 35 | 35 | 68.6% | 0 |
| April 2026 | 30 | 30 | 93.3% | 0 |
| May 2026 | 31 | 31 | 96.8% | 0 |
| June 2026 | 30 | 30 | 93.3% | 0 |
| July 2026 | 31 | 31 | 87.1% | 0 |