Flight
SWA4121 18 Sep 2026
SWA4121, operated by Southwest Airlines, on 18 Sep 2026: Phoenix Sky Harbor International (KPHX) to Salt Lake City International (KSLC). Scheduled and actual times are local to each airport (hover for UTC).
Flightestimated
PlaneTrack receiver network| Route | KPHX PHOENIX SKY HARBOR INTERNATIONAL → KSLC SALT LAKE CITY INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 22:06 MST 17 Sep |
| Last seen | 00:22 MDT |
| Duration | 1h 16m |
| Aircraft | AC4C8A |
| Max altitude | 36,000 ft |
| Distance tracked | 441 nm |
Punctuality, last 30 days
| Flights | 5 |
| On time | 2 (40%) |
| Average delay | -149 min |
| Worst delay | +65 min |
In the last 30 days SWA4121 departed on time (within 15 minutes) on 2 of 5 flights (40%), with an average departure delay of -149 min and a worst delay of +65 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.