DERBY21

DERBY · IN43 SDF

DERBY21 is operated by between Spring Lake Airport (IN43) and Louisville Muhammad Ali International Airport (KSDF). The flight is most often flown by a LOCKHEED MARTIN C-130J Super Hercules ; Lockheed. Typical block time is 0h 33m. SkyMeter has observed 63 legs of this flight number via ADS-B.

FLIGHTS
63
last 90 days
AVG DURATION
33m
tracked time
📅
SERVICE PERIOD
05/28/2025 → 07/16/2026
first → last seen
🗺
ROUTES / TYPES
39 / 1
city pairs · airframes
INCIDENT RATE
4.8%
3 flagged

Routes flown

By count · last 90 days

10
4
avg 15m · Spring Lake → Louisville Muhammad Ali
3
avg 7m · New Liberty Field → Louisville Muhammad Ali
2
avg 25m · Columbus Regional Hospital Heliport → Louisville Muhammad Ali
2
avg 9m · Louisville Muhammad Ali → Clark
2
avg 29m · Atterbury Field (Camp Atterbury) → Columbus
2
avg 5m · Louisville Muhammad Ali → Godman Army Air Field
2
avg 16m · Godman Army Air Field → Louisville Muhammad Ali
KSDF I42
1
avg 11m · Louisville Muhammad Ali → Paoli
1
avg 1h 49m · Booe → Louisville Muhammad Ali
1
avg 19m · Owensboro Daviess County → Louisville Muhammad Ali

Aircraft types

Equipment used on this number

1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
3
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 DERBY21

30
06/30/2026
32m
△ Low approach-stability score
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window