BOE421 is operated by between Snohomish County (Paine Field) Airport (KPAE) and Boeing Field King County International Airport (KBFI). The flight is most often flown by a BOEING Boeing 767-200. Typical block time is 1h 17m. SkyMeter has observed 4 legs of this flight number via ADS-B.
✈
FLIGHTS
4
last 90 days
⏱
AVG DURATION
1h 17m
tracked time
📅
SERVICE PERIOD
01/11/2026 → 05/02/2026
first → last seen
🗺
ROUTES / TYPES
1 / 1
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged
Routes flown
By count · last 90 days
Aircraft types
Equipment used on this number
Safety profile
Flagged flights · last 90 days
Go-arounds
0
Unstable approach
0
Rejected TO
0
Stall warnings
0
Overspeeds
0
Runway excursion
0
Counts represent flights with at least one occurrence of each
flag, not the total event count. See /incidents for individual events.
Recent flights
Newest 16 operations of BOE421
05/02/2026
47m
⤓ Emergency descent
04/07/2026
39m
△ Unstable approach
© SkyMeter ·
All flight data subject to ODbL attribution
·
Tracked: 90-day window