Flight
UAL8121 20 May 2026
UAL8121, operated by United Airlines, on 20 May 2026. Scheduled and actual times are local to each airport (hover for UTC).
Flightpartial
PlaneTrack receiver network| Route | KIAH GEORGE BUSH INTCNTL HOUSTON → ? |
| Status | Partial record (receiver network) |
| First seen airborne | 23:20 CDT 19 May |
| Aircraft | N12125 |
| Max altitude | 39,000 ft |
| Distance tracked | 749 nm |
Punctuality, last 30 days
| Flights | 6 |
| On time | 1 (17%) |
| Average delay | +53 min |
| Worst delay | +156 min |
In the last 30 days UAL8121 departed on time (within 15 minutes) on 1 of 6 flights (17%), with an average departure delay of +53 min and a worst delay of +156 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.