Flight
UAL1577 18 Jun 2026
UAL1577, operated by United Airlines, on 18 Jun 2026, 3 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 3estimated
PlaneTrack receiver network| Route | KNUQ MOFFETT FEDERAL AFLD → ? |
| Status | Completed (receiver network) |
| First seen airborne | 17:14 PDT 17 Jun |
| Last seen | 02:50Z |
| Duration | 2h 35m |
| Aircraft | N57852 |
| Max altitude | 34,125 ft |
Leg 2 of 3estimated
PlaneTrack receiver network| Route | KSEA SEATTLE TACOMA INTERNATIONAL → KORD CHICAGO OHARE INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 08:21 PDT |
| Last seen | 11:32 CDT |
| Duration | 1h 10m |
| Aircraft | N77867 |
| Max altitude | 35,975 ft |
| Distance tracked | 1,491 nm |
Leg 3 of 3estimated
PlaneTrack receiver network| Route | KORD CHICAGO OHARE INTERNATIONAL → KOAK METROPOLITAN OAKLAND INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 15:14 CDT |
| Last seen | 16:58 PDT |
| Duration | 3h 43m |
| Aircraft | N75853 |
| Max altitude | 29,975 ft |
| Distance tracked | 1,591 nm |
Punctuality, last 30 days
| Flights | 19 |
| On time | 5 (26%) |
| Average delay | -23 min |
| Worst delay | +291 min |
In the last 30 days UAL1577 departed on time (within 15 minutes) on 5 of 19 flights (26%), with an average departure delay of -23 min and a worst delay of +291 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.