Flight
UAL1239 19 Aug 2025
UAL1239, operated by United Airlines, on 19 Aug 2025: Jacksonville International (KJAX) to Chicago Ohare International (KORD). Scheduled and actual times are local to each airport (hover for UTC).
Flight
PlaneTrack receiver network| Route | KJAX JACKSONVILLE INTERNATIONAL → KORD CHICAGO OHARE INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 13:29 EDT |
| Last seen | 17:12 CDT |
| Duration | 4h 43m |
| Aircraft | N35236 |
| Max altitude | 38,000 ft |
| Distance tracked | 751 nm |
Punctuality, last 30 days
| Flights | 14 |
| On time | 7 (50%) |
| Average delay | +44 min |
| Worst delay | +173 min |
In the last 30 days UAL1239 departed on time (within 15 minutes) on 7 of 14 flights (50%), with an average departure delay of +44 min and a worst delay of +173 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.