Flight
UAL520 22 Jan 2026
UAL520, operated by United Airlines, on 22 Jan 2026: Phoenix Sky Harbor International (KPHX) to San Francisco International (KSFO), 3 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 3
PlaneTrack receiver network| Route | KPHX PHOENIX SKY HARBOR INTERNATIONAL → KSFO SAN FRANCISCO INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 17:21 MST 21 Jan |
| Last seen | 08:36 PST |
| Duration | 16h 14m |
| Aircraft | A55FA2 |
| Max altitude | 37,050 ft |
| Distance tracked | 564 nm |
Leg 2 of 3
PlaneTrack receiver network| Route | KSFO SAN FRANCISCO INTERNATIONAL → KPHX PHOENIX SKY HARBOR INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 11:04 PST |
| Last seen | 13:56 MST |
| Duration | 1h 51m |
| Aircraft | N75428 |
| Max altitude | 35,000 ft |
| Distance tracked | 564 nm |
Leg 3 of 3
PlaneTrack receiver network| Route | KPHX PHOENIX SKY HARBOR INTERNATIONAL → KORD CHICAGO OHARE INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 15:47 MST |
| Last seen | 19:56 CST |
| Duration | 3h 08m |
| Aircraft | AA07F9 |
| Distance tracked | 1,249 nm |
Punctuality, last 30 days
| Flights | 16 |
| On time | 5 (31%) |
| Average delay | +57 min |
| Worst delay | +139 min |
In the last 30 days UAL520 departed on time (within 15 minutes) on 5 of 16 flights (31%), with an average departure delay of +57 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.