Flight
SWA4521 12 Sep 2026
SWA4521, operated by Southwest Airlines, on 12 Sep 2026: San Francisco International (KSFO) to Burbank Glendale Pasadena (KBUR), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2estimated
PlaneTrack receiver network| Route | KSFO SAN FRANCISCO INTERNATIONAL → KBUR BURBANK GLENDALE PASADENA |
| Status | Completed (receiver network) |
| First seen airborne | 18:08 PDT 11 Sep |
| Last seen | 19:28 PDT 11 Sep |
| Duration | 1h 19m |
| Aircraft | N7843A |
| Max altitude | 31,000 ft |
| Distance tracked | 283 nm |
Leg 2 of 2estimated
PlaneTrack receiver network| Route | KPSP PALM SPRINGS INTERNATIONAL → KSMF SACRAMENTO INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 11:14 PDT |
| Last seen | 12:16 PDT |
| Duration | 1h 01m |
| Aircraft | N942WN |
| Max altitude | 40,000 ft |
| Distance tracked | 381 nm |
Punctuality, last 30 days
| Flights | 7 |
| On time | 2 (29%) |
| Average delay | -62 min |
| Worst delay | +132 min |
In the last 30 days SWA4521 departed on time (within 15 minutes) on 2 of 7 flights (29%), with an average departure delay of -62 min and a worst delay of +132 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.