Flight
SWA3957 19 Jun 2026
SWA3957, operated by Southwest Airlines, on 19 Jun 2026: Lambert St Louis International (KSTL) to Chicago Midway International (KMDW). Scheduled and actual times are local to each airport (hover for UTC).
Flight
PlaneTrack receiver network| Route | KSTL LAMBERT ST LOUIS INTERNATIONAL → KMDW CHICAGO MIDWAY INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 22:00 CDT 18 Jun |
| Last seen | 22:38 CDT 18 Jun |
| Duration | 0h 37m |
| Aircraft | N458WN |
| Max altitude | 27,000 ft |
| Distance tracked | 218 nm |
Punctuality, last 30 days
| Flights | 4 |
| On time | 3 (75%) |
| Average delay | +23 min |
| Worst delay | +71 min |
In the last 30 days SWA3957 departed on time (within 15 minutes) on 3 of 4 flights (75%), with an average departure delay of +23 min and a worst delay of +71 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.