Flight
UAL399 21 Sep 2025
UAL399, operated by United Airlines, on 21 Sep 2025. Scheduled and actual times are local to each airport (hover for UTC).
Flight
PlaneTrack receiver network| Route | KORD CHICAGO OHARE INTERNATIONAL → ? |
| Status | Completed (receiver network) |
| First seen airborne | 12:04 CDT |
| Last seen | 18:11Z |
| Duration | 1h 07m |
| Aircraft | A8AD4E |
Punctuality, last 30 days
| Flights | 8 |
| On time | 6 (75%) |
| Average delay | +44 min |
| Worst delay | +241 min |
In the last 30 days UAL399 departed on time (within 15 minutes) on 6 of 8 flights (75%), with an average departure delay of +44 min and a worst delay of +241 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.