Flight
UAL879 18 Jun 2026
UAL879, operated by United Airlines, on 18 Jun 2026: Heathrow (EGLL) 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 | EGLL HEATHROW → KIAH GEORGE BUSH INTCNTL HOUSTON |
| Status | Completed (receiver network) |
| First seen airborne | 10:20 BST |
| Last seen | 11:36 CDT |
| Duration | 7h 15m |
| Aircraft | N791UA |
| Max altitude | 36,000 ft |
| Distance tracked | 4,191 nm |
Leg 2 of 2estimated
PlaneTrack receiver network| Route | EGLL HEATHROW → KIAH GEORGE BUSH INTCNTL HOUSTON |
| Status | Completed (receiver network) |
| First seen airborne | 18:30 BST |
| Last seen | 14:16 CDT |
| Duration | 1h 45m |
| Aircraft | N791UA |
| Max altitude | 36,000 ft |
| Distance tracked | 4,191 nm |
Punctuality, last 30 days
| Flights | 7 |
| On time | 1 (14%) |
| Average delay | +17 min |
| Worst delay | +24 min |
In the last 30 days UAL879 departed on time (within 15 minutes) on 1 of 7 flights (14%), with an average departure delay of +17 min and a worst delay of +24 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.