Flight
SKW3991 20 Sep 2026
SKW3991, operated by SkyWest Airlines, on 20 Sep 2026: Seattle Tacoma International (KSEA) to San Francisco International (KSFO), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2
PlaneTrack receiver network| Route | KSEA SEATTLE TACOMA INTERNATIONAL → KSFO SAN FRANCISCO INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 18:10 PDT 19 Sep |
| Last seen | 19:52 PDT 19 Sep |
| Duration | 1h 41m |
| Aircraft | N256SY |
| Max altitude | 35,000 ft |
| Distance tracked | 590 nm |
Leg 2 of 2
PlaneTrack receiver network| Route | KSFO SAN FRANCISCO INTERNATIONAL → KSEA SEATTLE TACOMA INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 21:10 PDT 19 Sep |
| Last seen | 22:46 PDT 19 Sep |
| Duration | 1h 35m |
| Aircraft | N256SY |
| Max altitude | 36,000 ft |
| Distance tracked | 590 nm |
Punctuality, last 30 days
| Flights | 16 |
| On time | 2 (12%) |
| Average delay | +53 min |
| Worst delay | +150 min |
In the last 30 days SKW3991 departed on time (within 15 minutes) on 2 of 16 flights (12%), with an average departure delay of +53 min and a worst delay of +150 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.