Flight

UAL4209 13 Aug 2026

UAL4209, operated by United Airlines, on 13 Aug 2026: Boeing Fld King Co International (KBFI) to Seattle Tacoma International (KSEA). Scheduled and actual times are local to each airport (hover for UTC).

← 18 Jul 2026All UAL4209 flights15 Aug 2026 →

Flight

PlaneTrack receiver network
RouteKBFI BOEING FLD KING CO INTERNATIONAL → KSEA SEATTLE TACOMA INTERNATIONAL
StatusCompleted (receiver network)
First seen airborne13:00 PDT
Last seen14:48 PDT
Duration1h 47m
AircraftN47470
Max altitude41,000 ft
Distance tracked4 nm

Punctuality, last 30 days

Flights2
On time0 (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.

UAL4209 flight history Full history CSV API access

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.