Flight
UAL4209 23 Apr 2026
UAL4209, operated by United Airlines, on 23 Apr 2026: Boeing Fld King Co International (KBFI) to Seattle Tacoma International (KSEA). Scheduled and actual times are local to each airport (hover for UTC).
Flight
PlaneTrack receiver network| Route | KBFI BOEING FLD KING CO INTERNATIONAL → KSEA SEATTLE TACOMA INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 11:35 PDT |
| Last seen | 12:04 PDT |
| Duration | 0h 28m |
| Aircraft | A12B2B |
| Max altitude | 4,725 ft |
| Distance tracked | 4 nm |
Punctuality, last 30 days
| Flights | 2 |
| On time | 0 (0%) |
| Average delay | +41 min |
| Worst delay | +59 min |
In the last 30 days UAL4209 departed on time (within 15 minutes) on 0 of 2 flights (0%), with an average departure delay of +41 min and a worst delay of +59 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.