Flight
SWA4391 20 Feb 2026
SWA4391, operated by Southwest Airlines, on 20 Feb 2026: Chicago Midway International (KMDW) to Salt Lake City International (KSLC). Scheduled and actual times are local to each airport (hover for UTC).
Flight
PlaneTrack receiver network| Route | KMDW CHICAGO MIDWAY INTERNATIONAL → KSLC SALT LAKE CITY INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 08:40 CST |
| Last seen | 10:48 MST |
| Duration | 3h 07m |
| Aircraft | N8555Z |
| Max altitude | 36,025 ft |
| Distance tracked | 1,090 nm |
Punctuality, last 30 days
| Flights | 5 |
| On time | 4 (80%) |
| Average delay | +12 min |
| Worst delay | +33 min |
In the last 30 days SWA4391 departed on time (within 15 minutes) on 4 of 5 flights (80%), with an average departure delay of +12 min and a worst delay of +33 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.