Flight
SWA3999 21 Aug 2025
SWA3999, operated by Southwest Airlines, on 21 Aug 2025: Gillespie Field (KSEE) to Sacramento International (KSMF), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2
PlaneTrack receiver network| Route | KSEE Gillespie Field → KSMF SACRAMENTO INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 00:12 PDT |
| Last seen | 12:32 PDT |
| Duration | 12h 19m |
| Aircraft | N8644C |
| Max altitude | 39,000 ft |
| Distance tracked | 417 nm |
Leg 2 of 2
PlaneTrack receiver network| Route | KSMF SACRAMENTO INTERNATIONAL → KDEN DENVER INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 13:26 PDT |
| Last seen | 18:58 MDT |
| Duration | 4h 31m |
| Aircraft | AA9AFC |
| Distance tracked | 788 nm |
Punctuality, last 30 days
| Flights | 4 |
| On time | 1 (25%) |
| Average delay | +25 min |
| Worst delay | +34 min |
In the last 30 days SWA3999 departed on time (within 15 minutes) on 1 of 4 flights (25%), with an average departure delay of +25 min and a worst delay of +34 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.