Flight
UAL1503 12 Apr 2026
UAL1503, operated by United Airlines, on 12 Apr 2026: San Francisco International (KSFO) to Ontario International (KONT). Scheduled and actual times are local to each airport (hover for UTC).
Flight
PlaneTrack receiver network| Route | KSFO SAN FRANCISCO INTERNATIONAL → KONT ONTARIO INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 08:47 PDT |
| Last seen | 09:44 PDT |
| Duration | 0h 57m |
| Aircraft | N878UA |
| Max altitude | 35,050 ft |
| Distance tracked | 315 nm |
Punctuality, last 30 days
| Flights | 6 |
| On time | 3 (50%) |
| Average delay | +17 min |
| Worst delay | +42 min |
In the last 30 days UAL1503 departed on time (within 15 minutes) on 3 of 6 flights (50%), with an average departure delay of +17 min and a worst delay of +42 min.
Schedule, departure and arrival times from the FAA SWIM feed; aircraft, altitude and distance from the PlaneTrack receiver network. On time means a departure within 15 minutes of schedule.