Flight
UAL4209 15 Aug 2026
UAL4209, operated by United Airlines, on 15 Aug 2026. Scheduled and actual times are local to each airport (hover for UTC).
Flightpartial
PlaneTrack receiver network| Route | KBFI BOEING FLD KING CO INTERNATIONAL → ? |
| Status | Partial record (receiver network) |
| First seen airborne | 18:02 PDT 14 Aug |
| Aircraft | N803UA |
| Max altitude | 38,050 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.