Flight
UAL543 25 Sep 2026
UAL543, operated by United Airlines, on 25 Sep 2026: Buffalo Niagara International (KBUF) to Chicago Ohare International (KORD), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2
FAA SWIM schedule| Route | KBUF BUFFALO NIAGARA INTERNATIONAL → KORD CHICAGO OHARE INTERNATIONAL |
| Status | Completed, departure delayed +15 min |
| Scheduled departure | 07:00 EDT |
| Actual departure | 07:15 EDT delayed +15 min |
| Actual arrival | 07:34 CDT |
| Duration | 1h 19m |
| Aircraft | N440UA A320 |
| Max altitude | 30,000 ft |
| Distance tracked | 410 nm |
Leg 2 of 2
FAA SWIM schedule| Route | KORD CHICAGO OHARE INTERNATIONAL → KSFO SAN FRANCISCO INTERNATIONAL |
| Status | Completed, departure delayed +88 min |
| Scheduled departure | 10:39 CDT |
| Actual departure | 12:07 CDT delayed +88 min |
| Actual arrival | 14:15 PDT |
| Duration | 4h 08m |
| Aircraft | N37437 B739 |
| Max altitude | 36,025 ft |
| Distance tracked | 1,600 nm |
Punctuality, last 30 days
| Flights | 14 |
| On time | 5 (36%) |
| Average delay | +43 min |
| Worst delay | +223 min |
In the last 30 days UAL543 departed on time (within 15 minutes) on 5 of 14 flights (36%), with an average departure delay of +43 min and a worst delay of +223 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.