Flight
UAL853 4 Jan 2026
UAL853, operated by United Airlines, on 4 Jan 2026: San Francisco International (KSFO) to Chiang Kai Shek International (RCTP). Scheduled and actual times are local to each airport (hover for UTC).
Flightestimated
PlaneTrack receiver network| Route | KSFO SAN FRANCISCO INTERNATIONAL → RCTP CHIANG KAI SHEK INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 23:19 PST 3 Jan |
| Last seen | 05:56 CST 5 Jan |
| Duration | 14h 37m |
| Aircraft | N788UA |
| Max altitude | 38,000 ft |
| Distance tracked | 5,610 nm |
Punctuality, last 30 days
| Flights | 8 |
| On time | 1 (12%) |
| Average delay | +48 min |
| Worst delay | +102 min |
In the last 30 days UAL853 departed on time (within 15 minutes) on 1 of 8 flights (12%), with an average departure delay of +48 min and a worst delay of +102 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.