N81SU is operated by MEDARY AVIATION LLC between Brookings Regional Airport (KBKX) and Rapid City Regional Airport (KRAP). The flight is most often flown by a BEECH Beech King Air 90. Typical block time is 0h 58m. SkyMeter has observed 45 legs of this flight number via ADS-B.

FLIGHTS
45
last 90 days
AVG DURATION
58m
tracked time
📅
SERVICE PERIOD
05/28/2025 → 06/26/2026
first → last seen
🗺
ROUTES / TYPES
27 / 1
city pairs · airframes
INCIDENT RATE
8.9%
4 flagged

Routes flown

By count · last 90 days

10
4
avg 1h 24m · Brookings → Rapid City
4
avg 42m · Brookings → Pierre
2
avg 56m · Brookings → Philip
1
avg 1h 43m · Joe Foss Field → Black Hills Airport-Clyde Ice Field
1
avg 50m · Brookings → St Paul Downtown Holman Field
1
avg 59m · St Paul Downtown Holman Field → Brookings
1
avg 16m · Joe Foss Field → Brookings
1
avg 1h 9m · Brookings → Eppley Airfield
1
avg 28m · Brookview Manor Heliport → Sioux Gateway Airport/Brigadier General Bud Day Field
1
avg 48m · Pierre → Joe Foss Field

Aircraft types

Equipment used on this number

1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
4
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 N81SU

30
06/11/2026
34m
△ Unstable approach
06/02/2026
1h 8m
△ Unstable approach
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window