Flight
UAL3900 16 Dec 2025
UAL3900, operated by United Airlines, on 16 Dec 2025: San Francisco International (KSFO) to Chicago Ohare International (KORD). Scheduled and actual times are local to each airport (hover for UTC).
Flightestimated
PlaneTrack receiver network| Route | KSFO SAN FRANCISCO INTERNATIONAL → KORD CHICAGO OHARE INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 18:56 PST 15 Dec |
| Last seen | 23:24 CST 15 Dec |
| Duration | 2h 27m |
| Aircraft | N780UA |
| Max altitude | 41,000 ft |
| Distance tracked | 1,600 nm |
Punctuality, last 30 days
| Flights | 3 |
| On time | 0 (0%) |
| Average delay | +83 min |
| Worst delay | +88 min |
In the last 30 days UAL3900 departed on time (within 15 minutes) on 0 of 3 flights (0%), with an average departure delay of +83 min and a worst delay of +88 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.