Flight
UAL1181 21 May 2026
UAL1181, operated by United Airlines, on 21 May 2026: Denver International (KDEN) 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 | KDEN DENVER INTERNATIONAL → KIAH GEORGE BUSH INTCNTL HOUSTON |
| Status | Completed (receiver network) |
| First seen airborne | 19:39 MDT 20 May |
| Last seen | 12:58 CDT |
| Duration | 16h 18m |
| Aircraft | N47288 |
| Max altitude | 35,000 ft |
| Distance tracked | 1,060 nm |
Leg 2 of 2
PlaneTrack receiver network| Route | KIAH GEORGE BUSH INTCNTL HOUSTON → KPHL PHILADELPHIA INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 15:10 CDT |
| Last seen | 18:56 EDT |
| Duration | 2h 45m |
| Aircraft | N27734 |
| Max altitude | 39,000 ft |
| Distance tracked | 1,149 nm |
Punctuality, last 30 days
| Flights | 4 |
| On time | 3 (75%) |
| Average delay | +9 min |
| Worst delay | +19 min |
In the last 30 days UAL1181 departed on time (within 15 minutes) on 3 of 4 flights (75%), with an average departure delay of +9 min and a worst delay of +19 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.