Flight
UAL1577 9 Mar 2026
UAL1577, operated by United Airlines, on 9 Mar 2026: San Francisco International (KSFO) to Chicago Ohare International (KORD), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2
PlaneTrack receiver network| Route | KSFO SAN FRANCISCO INTERNATIONAL → KORD CHICAGO OHARE INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 19:05 PDT 8 Mar |
| Last seen | 11:10 CDT |
| Duration | 14h 04m |
| Aircraft | A12AA5 |
| Max altitude | 34,000 ft |
| Distance tracked | 1,600 nm |
Leg 2 of 2
PlaneTrack receiver network| Route | KORD CHICAGO OHARE INTERNATIONAL → KSFO SAN FRANCISCO INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 14:50 CDT |
| Last seen | 16:58 PDT |
| Duration | 4h 07m |
| Aircraft | A245B7 |
| Max altitude | 34,050 ft |
| Distance tracked | 1,600 nm |
Punctuality, last 30 days
| Flights | 20 |
| On time | 6 (30%) |
| Average delay | -32 min |
| Worst delay | +82 min |
In the last 30 days UAL1577 departed on time (within 15 minutes) on 6 of 20 flights (30%), with an average departure delay of -32 min and a worst delay of +82 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.