Flight
UAL1239 29 Oct 2025
UAL1239, operated by United Airlines, on 29 Oct 2025: George Bush Intcntl Houston (KIAH) to Jacksonville International (KJAX), 3 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 3
PlaneTrack receiver network| Route | KIAH GEORGE BUSH INTCNTL HOUSTON → KJAX JACKSONVILLE INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 07:52 CDT |
| Last seen | 10:28 EDT |
| Duration | 1h 35m |
| Aircraft | N16713 |
| Max altitude | 39,050 ft |
| Distance tracked | 708 nm |
Leg 2 of 3
PlaneTrack receiver network| Route | KJAX JACKSONVILLE INTERNATIONAL → KORD CHICAGO OHARE INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 11:37 EDT |
| Last seen | 12:40 CDT |
| Duration | 2h 02m |
| Aircraft | A12799 |
| Max altitude | 36,000 ft |
| Distance tracked | 751 nm |
Leg 3 of 3
PlaneTrack receiver network| Route | KORD CHICAGO OHARE INTERNATIONAL → KROC GREATER ROCHESTER INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 14:09 CDT |
| Last seen | 16:26 EDT |
| Duration | 1h 16m |
| Aircraft | N23721 |
| Max altitude | 37,000 ft |
| Distance tracked | 457 nm |
Punctuality, last 30 days
| Flights | 16 |
| On time | 8 (50%) |
| Average delay | +40 min |
| Worst delay | +173 min |
In the last 30 days UAL1239 departed on time (within 15 minutes) on 8 of 16 flights (50%), with an average departure delay of +40 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.