Flight
UAL543 27 May 2026
UAL543, operated by United Airlines, on 27 May 2026: San Francisco International (KSFO) to Chicago Ohare International (KORD), 3 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 3
PlaneTrack receiver network| Route | KSFO SAN FRANCISCO INTERNATIONAL → KORD CHICAGO OHARE INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 17:01 PDT 26 May |
| Last seen | 07:28 CDT |
| Duration | 12h 27m |
| Aircraft | N875UA |
| Max altitude | 32,000 ft |
| Distance tracked | 1,600 nm |
Leg 2 of 3
PlaneTrack receiver network| Route | KORD CHICAGO OHARE INTERNATIONAL → KSFO SAN FRANCISCO INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 11:43 CDT |
| Last seen | 13:26 PDT |
| Duration | 3h 42m |
| Aircraft | N213UA |
| Max altitude | 34,000 ft |
| Distance tracked | 1,600 nm |
Leg 3 of 3estimated
PlaneTrack receiver network| Route | Route not recorded |
| Status | Completed (receiver network) |
| First seen airborne | 23:32Z |
| Last seen | 23:58Z |
| Duration | 0h 25m |
| Aircraft | N821UA |
| Max altitude | 29,825 ft |
Punctuality, last 30 days
| Flights | 14 |
| On time | 6 (43%) |
| Average delay | +27 min |
| Worst delay | +69 min |
In the last 30 days UAL543 departed on time (within 15 minutes) on 6 of 14 flights (43%), with an average departure delay of +27 min and a worst delay of +69 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.