Flight
SWA4521 28 May 2026
SWA4521, operated by Southwest Airlines, on 28 May 2026, 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2estimated
PlaneTrack receiver network| Route | KSTL LAMBERT ST LOUIS INTERNATIONAL → ? |
| Status | Completed (receiver network) |
| First seen airborne | 10:00 CDT |
| Last seen | 15:34Z |
| Duration | 0h 33m |
| Aircraft | N955WN |
Leg 2 of 2
PlaneTrack receiver network| Route | KSTL LAMBERT ST LOUIS INTERNATIONAL → KTPA TAMPA INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 11:37 CDT |
| Last seen | 13:36 EDT |
| Duration | 0h 58m |
| Aircraft | N955WN |
| Max altitude | 39,000 ft |
| Distance tracked | 755 nm |
Punctuality, last 30 days
| Flights | 4 |
| On time | 1 (25%) |
| Average delay | -150 min |
| Worst delay | +132 min |
In the last 30 days SWA4521 departed on time (within 15 minutes) on 1 of 4 flights (25%), with an average departure delay of -150 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.