Flight
UAL520 21 Sep 2026
UAL520, operated by United Airlines, on 21 Sep 2026: Salt Lake City International (KSLC) to San Francisco International (KSFO), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2
PlaneTrack receiver network| Route | KSLC SALT LAKE CITY INTERNATIONAL → KSFO SAN FRANCISCO INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 19:34 MDT 20 Sep |
| Last seen | 11:30 PDT |
| Duration | 16h 56m |
| Aircraft | N78524 |
| Max altitude | 35,000 ft |
| Distance tracked | 519 nm |
Leg 2 of 2
PlaneTrack receiver network| Route | KSFO SAN FRANCISCO INTERNATIONAL → KSLC SALT LAKE CITY INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 14:16 PDT |
| Last seen | 16:50 MDT |
| Duration | 1h 34m |
| Aircraft | N811UA |
| Max altitude | 35,025 ft |
| Distance tracked | 519 nm |
Punctuality, last 30 days
| Flights | 15 |
| On time | 4 (27%) |
| Average delay | +60 min |
| Worst delay | +139 min |
In the last 30 days UAL520 departed on time (within 15 minutes) on 4 of 15 flights (27%), with an average departure delay of +60 min and a worst delay of +139 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.