Flight
UAL1439 25 Jan 2026
UAL1439, operated by United Airlines, on 25 Jan 2026: San Francisco International (KSFO) to George Bush Intcntl Houston (KIAH). Scheduled and actual times are local to each airport (hover for UTC).
Flight
PlaneTrack receiver network| Route | KSFO SAN FRANCISCO INTERNATIONAL → KIAH GEORGE BUSH INTCNTL HOUSTON |
| Status | Completed (receiver network) |
| First seen airborne | 09:05 PST |
| Last seen | 14:28 CST |
| Duration | 3h 23m |
| Aircraft | A12AA4 |
| Max altitude | 33,000 ft |
| Distance tracked | 1,418 nm |
Punctuality, last 30 days
| Flights | 9 |
| On time | 5 (56%) |
| Average delay | +30 min |
| Worst delay | +172 min |
In the last 30 days UAL1439 departed on time (within 15 minutes) on 5 of 9 flights (56%), with an average departure delay of +30 min and a worst delay of +172 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.