Flight
UAL8221 19 May 2026
UAL8221, operated by United Airlines, on 19 May 2026: San Francisco International (KSFO) to Denver International (KDEN). Scheduled and actual times are local to each airport (hover for UTC).
Flight
PlaneTrack receiver network| Route | KSFO SAN FRANCISCO INTERNATIONAL → KDEN DENVER INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 18:22 PDT 18 May |
| Last seen | 12:18 MDT |
| Duration | 16h 55m |
| Aircraft | A0B889 |
| Max altitude | 35,025 ft |
| Distance tracked | 838 nm |
Punctuality, last 30 days
| Flights | 1 |
| On time | 0 (0%) |
| Average delay | +216 min |
| Worst delay | +216 min |
In the last 30 days UAL8221 departed on time (within 15 minutes) on 0 of 1 flight (0%), with an average departure delay of +216 min and a worst delay of +216 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.