Flight
UAL539 4 May 2026
UAL539, operated by United Airlines, on 4 May 2026: Chicago Ohare International (KORD) to George Bush Intcntl Houston (KIAH), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2estimated
PlaneTrack receiver network| Route | KORD CHICAGO OHARE INTERNATIONAL → KIAH GEORGE BUSH INTCNTL HOUSTON |
| Status | Completed (receiver network) |
| First seen airborne | 07:43 CDT |
| Last seen | 09:48 CDT |
| Duration | 2h 04m |
| Aircraft | A1277A |
| Max altitude | 36,000 ft |
| Distance tracked | 805 nm |
Leg 2 of 2estimated
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 | N37474 |
| Max altitude | 27,000 ft |
| Distance tracked | 805 nm |
Punctuality, last 30 days
| Flights | 7 |
| On time | 1 (14%) |
| Average delay | +76 min |
| Worst delay | +374 min |
In the last 30 days UAL539 departed on time (within 15 minutes) on 1 of 7 flights (14%), with an average departure delay of +76 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.