Flight
UAL552 27 May 2026
UAL552, operated by United Airlines, on 27 May 2026: San Francisco International (KSFO) to Ontario International (KONT). Scheduled and actual times are local to each airport (hover for UTC).
Flightestimated
PlaneTrack receiver network| Route | KSFO SAN FRANCISCO INTERNATIONAL → KONT ONTARIO INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 21:12 PDT 26 May |
| Last seen | 22:20 PDT 26 May |
| Duration | 1h 07m |
| Aircraft | N77544 |
| Max altitude | 31,000 ft |
| Distance tracked | 315 nm |
Punctuality, last 30 days
| Flights | 12 |
| On time | 5 (42%) |
| Average delay | +26 min |
| Worst delay | +116 min |
In the last 30 days UAL552 departed on time (within 15 minutes) on 5 of 12 flights (42%), with an average departure delay of +26 min and a worst delay of +116 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.