N
N504SM
REDD AVIATION LLC · KU77 → BFI
N504SM is operated by REDD AVIATION LLC between Spanish Fork-Springville-Woodhouse Field Airport (KU77) and Boeing Field King County International Airport (KBFI). The flight is most often flown by a . Typical block time is 2h 4m. SkyMeter has observed 12 legs of this flight number via ADS-B.
✈
FLIGHTS
12
last 90 days
⏱
AVG DURATION
2h 4m
tracked time
📅
SERVICE PERIOD
10/28/2025 → 06/30/2026
first → last seen
🗺
ROUTES / TYPES
8 / 1
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged
Routes flown
By count · last 90 days
avg 1h 52m
·
Spanish Fork-Springville-Woodhouse Field → John Wayne Airport-Orange County
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 30 operations of N504SM
01/13/2026
2h 20m
△ Low approach-stability score
© SkyMeter ·
All flight data subject to ODbL attribution
·
Tracked: 90-day window