Flight
UAL1239 7 Oct 2025
UAL1239, operated by United Airlines, on 7 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 | 07:41 CDT |
| Last seen | 10:30 EDT |
| Duration | 1h 48m |
| Aircraft | N27213 |
| Max altitude | 39,000 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 | 11:27 EDT |
| Last seen | 12:36 CDT |
| Duration | 2h 09m |
| Aircraft | N477UA |
| Max altitude | 36,050 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 | 14:41 CDT |
| Last seen | 16:52 EDT |
| Duration | 1h 10m |
| Aircraft | N21723 |
| Max altitude | 39,000 ft |
| Distance tracked | 457 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.