NDU21 is operated by UNIVERSITY OF NORTH DAKOTA, C/O JOHN D ODEGARD SCHOOL OF AEROSP between Pribbs Field (2MN0) and Grand Forks International Airport (KGFK). The flight is most often flown by a PIPER Piper Cherokee. Typical block time is 0h 30m. SkyMeter has observed 409 legs of this flight number via ADS-B.

✈
FLIGHTS
409
last 90 days
⏱
AVG DURATION
30m
tracked time
📅
SERVICE PERIOD
06/05/2025 → 07/16/2026
first → last seen
🗺
ROUTES / TYPES
91 / 1
city pairs · airframes
⚠
INCIDENT RATE
8.1%
33 flagged

Routes flown

By count · last 90 days

10
2MN0 → KGFK
24
avg 10m · Pribbs Field → Grand Forks
8ND4 → KGFK
19
avg 12m · Heyde → Grand Forks
KCKN → KGFK
14
avg 21m · Crookston Municipal Kirkwood Field → Grand Forks
KGFK → KCKN
13
avg 24m · Grand Forks → Crookston Municipal Kirkwood Field
4ND1 → KGFK
12
avg 6m · Knutson → Grand Forks
KGFK → K4V4
10
avg 24m · Grand Forks → Northwood Municipal Vince Field
KGFK → KD37
8
avg 27m · Grand Forks → Warren
KGFK → KGAF
7
avg 31m · Grand Forks → Hutson Field
US-0166 → KGFK
6
avg 19m · Shimpa Airstrip → Grand Forks
KGFK → KD56
6
avg 26m · Grand Forks → Mayville

Aircraft types

Equipment used on this number

1
P28A PIPER Piper Cherokee
411

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
33
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 NDU21

30
N921NDPIPER Piper Cherokee
→
07/16/2026
5m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/16/2026
1h 23m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/16/2026
57m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/16/2026
13m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/15/2026
1h 0m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/15/2026
57m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/15/2026
1h 33m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/15/2026
18m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/15/2026
41m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/15/2026
22m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/15/2026
36m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/13/2026
1h 29m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/13/2026
1h 7m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/13/2026
1h 11m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/11/2026
1h 35m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/11/2026
23m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/11/2026
20m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/11/2026
34m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/11/2026
14m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/11/2026
48m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/11/2026
1h 10m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/11/2026
8m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/11/2026
12m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/10/2026
22m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/10/2026
37m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/10/2026
27m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/10/2026
13m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/10/2026
1h 13m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/10/2026
47m
No alerts
Replay Analysis
N921NDPIPER Piper Cherokee
→
07/10/2026
12m
△ Low approach-stability score
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window