Flight
SKW4039 21 May 2026
SKW4039, operated by SkyWest Airlines, on 21 May 2026: Seattle Tacoma International (KSEA) to Boeing Fld King Co International (KBFI). Scheduled and actual times are local to each airport (hover for UTC).
Flightestimated
PlaneTrack receiver network| Route | KSEA SEATTLE TACOMA INTERNATIONAL → KBFI BOEING FLD KING CO INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 21:01 PDT 20 May |
| Last seen | 21:50 PDT 20 May |
| Duration | 0h 48m |
| Aircraft | N251SY |
| Max altitude | 35,000 ft |
| Distance tracked | 4 nm |
Punctuality, last 30 days
| Flights | 7 |
| On time | 1 (14%) |
| Average delay | +36 min |
| Worst delay | +70 min |
In the last 30 days SKW4039 departed on time (within 15 minutes) on 1 of 7 flights (14%), with an average departure delay of +36 min and a worst delay of +70 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.