Flight
UAL539 23 Apr 2026
UAL539, operated by United Airlines, on 23 Apr 2026, 3 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 3estimated
PlaneTrack receiver network| Route | Route not recorded |
| Status | Completed (receiver network) |
| First seen airborne | 00:00Z |
| Last seen | 16:00Z |
| Duration | 15h 59m |
| Aircraft | N36447 |
| Max altitude | 36,000 ft |
Leg 2 of 3estimated
PlaneTrack receiver network| Route | KORD CHICAGO OHARE INTERNATIONAL → KIAH GEORGE BUSH INTCNTL HOUSTON |
| Status | Completed (receiver network) |
| First seen airborne | 12:03 CDT |
| Last seen | 12:54 CDT |
| Duration | 0h 50m |
| Aircraft | N472UA |
| Max altitude | 23,025 ft |
| Distance tracked | 805 nm |
Leg 3 of 3partial
PlaneTrack receiver network| Route | KIAH GEORGE BUSH INTCNTL HOUSTON → ? |
| Status | Partial record (receiver network) |
| First seen airborne | 17:11 CDT |
| Aircraft | A923A9 |
Punctuality, last 30 days
| Flights | 8 |
| On time | 1 (12%) |
| Average delay | +69 min |
| Worst delay | +374 min |
In the last 30 days UAL539 departed on time (within 15 minutes) on 1 of 8 flights (12%), with an average departure delay of +69 min and a worst delay of +374 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.