Flight
SWA4099 12 Feb 2026
SWA4099, operated by Southwest Airlines, on 12 Feb 2026: Lambert St Louis International (KSTL) to Mc Carran International (KLAS), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2
PlaneTrack receiver network| Route | KSTL LAMBERT ST LOUIS INTERNATIONAL → KLAS MC CARRAN INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 12:49 CST |
| Last seen | 14:32 PST |
| Duration | 3h 42m |
| Aircraft | N8721J |
| Max altitude | 36,000 ft |
| Distance tracked | 1,189 nm |
Leg 2 of 2estimated
PlaneTrack receiver network| Route | ? → KLAS MC CARRAN INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 23:02Z |
| Last seen | 15:58 PST |
| Duration | 0h 55m |
| Aircraft | N8721J |
Punctuality, last 30 days
| Flights | 5 |
| On time | 2 (40%) |
| Average delay | +31 min |
| Worst delay | +71 min |
In the last 30 days SWA4099 departed on time (within 15 minutes) on 2 of 5 flights (40%), with an average departure delay of +31 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.