Flight
UAL1239 25 Aug 2025
UAL1239, operated by United Airlines, on 25 Aug 2025: The William B Hartsfield Atlanta International (KATL) to Chicago Ohare International (KORD), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2estimated
PlaneTrack receiver network| Route | KATL THE WILLIAM B HARTSFIELD ATLANTA INTERNATIONAL → KORD CHICAGO OHARE INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 20:03 EDT 24 Aug |
| Last seen | 00:39 CDT |
| Duration | 5h 36m |
| Aircraft | A441AB |
| Max altitude | 36,000 ft |
| Distance tracked | 527 nm |
Leg 2 of 2estimated
PlaneTrack receiver network| Route | KORD CHICAGO OHARE INTERNATIONAL → KROC GREATER ROCHESTER INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 13:23 CDT |
| Last seen | 19:56 EDT |
| Duration | 5h 33m |
| Aircraft | N14228 |
| 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.