UA1427
UA1427 (United Airlines) is a multi-stop service on 8 routes, busiest San Francisco to Los Angeles. Of 255 departures recorded from February 2026 to July 2026, 66.4% left on time, according to the US BTS.
- On-time departures66.4%of 255 flights
- Average delay15.2 min
- July 202657
- Cancelled0.8%
- Legs flown under this number8
Recorded departures by month
Short series — UA1427 has only 6 months so far. Enough to show the level now, not enough to read a trend.
All legs under this number combined; see the leg table.
The most recent periods6 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | 14 | – |
| March | – | 34 | – |
| April | – | 60 | – |
| May | – | 52 | – |
| June | – | 38 | – |
| July | – | 57 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · February 2026 → July 2026
On-time departures by month
Short series — UA1427 has only 6 months so far. Enough to show the level now, not enough to read a trend.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods6 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | 92.9% | – |
| March | – | 81.8% | – |
| April | – | 69.5% | – |
| May | – | 53.9% | – |
| June | – | 52.6% | – |
| July | – | 68.4% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · February 2026 → July 2026
Average departure delay by month
Short series — UA1427 has only 6 months so far. Enough to show the level now, not enough to read a trend.
according to the US BTS · February 2026 → July 2026
Cancelled departures by month
Short series — UA1427 has only 6 months so far. Enough to show the level now, not enough to read a trend.
The most recent periods6 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | 0 | – |
| March | – | 1 | – |
| April | – | 1 | – |
| May | – | 0 | – |
| June | – | 0 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · February 2026 → 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 99.2% 253
- Cancelled 0.8% 2
Share of all recorded flights in the period, all legs. · Feb 12, 2026 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SFO LAX San Francisco International Airport – Los Angeles International Airport | 543 | 11.8 min | 75.9% | 113 |
| PHX SFO Phoenix Sky Harbor International Airport – San Francisco International Airport | 1,047 | 22.6 min | 49.5% | 95 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| February 2026 | 14 | 14 | 92.9% | 0 |
| March 2026 | 34 | 33 | 81.8% | 1 |
| April 2026 | 60 | 59 | 69.5% | 1 |
| May 2026 | 52 | 52 | 53.9% | 0 |
| June 2026 | 38 | 38 | 52.6% | 0 |
| July 2026 | 57 | 57 | 68.4% | 0 |