N421MD is operated by CLEAR BLUE SKY AVIATION LLC between Billings Logan International Airport (KBIL) and Centennial Airport (KAPA). The flight is most often flown by a CESSNA Cessna Golden Eagle 421. Typical block time is 2h 8m. SkyMeter has observed 47 legs of this flight number via ADS-B.

✈
FLIGHTS
47
last 90 days
⏱
AVG DURATION
2h 8m
tracked time
📅
SERVICE PERIOD
05/29/2025 → 07/17/2026
first → last seen
🗺
ROUTES / TYPES
30 / 1
city pairs · airframes
⚠
INCIDENT RATE
8.5%
4 flagged

Routes flown

By count · last 90 days

10
KBIL → KAPA
5
avg 3h 30m · Billings Logan → Centennial
MT25 → KBIL
2
avg 6m · St Vincent Hospital Heliport → Billings Logan
KBIL → K32S
1
avg 4h 2m · Billings Logan → Stevensville
KPVU → KSGU
1
avg 1h 11m · Provo → St George
KAPA → KBIS
1
avg 2h 32m · Centennial → Bismarck
KBIS → KBIL
1
avg 2h 4m · Bismarck → Billings Logan
KBIL → KBOI
1
avg 3h 2m · Billings Logan → Boise Air Terminal/Gowen Field
1MT2 → KBIL
1
avg 5m · Skyrider Ultralightport → Billings Logan
KAPA → KBIL
1
avg 2h 11m · Centennial → Billings Logan
K32S → KBIL
1
avg 1h 4m · Stevensville → Billings Logan

Aircraft types

Equipment used on this number

1
C421 CESSNA Cessna Golden Eagle 421
61

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 N421MD

30
N421MDCESSNA Cessna Golden Eagle 421
→
07/17/2026
5m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
07/16/2026
1h 20m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
07/16/2026
57m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
07/12/2026
5m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
07/12/2026
1h 48m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
07/12/2026
1h 25m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
07/12/2026
5m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
07/11/2026
2h 13m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
07/11/2026
5h 1m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
07/10/2026
1h 46m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
07/09/2026
3m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
07/09/2026
2h 8m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
07/08/2026
1h 56m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
07/08/2026
2h 2m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
06/19/2026
7m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
06/19/2026
1h 2m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
06/16/2026
3h 57m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
06/13/2026
10m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
06/12/2026
1h 4m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
06/12/2026
45m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
06/12/2026
4h 1m
△ Low approach-stability score
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
06/10/2026
32m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
06/10/2026
5h 31m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
06/08/2026
17m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
06/07/2026
2h 3m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
06/07/2026
1h 45m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
06/07/2026
2h 18m
△ Low approach-stability score
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
06/06/2026
2h 50m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
06/05/2026
3h 18m
No alerts
Replay Analysis
N421MDCESSNA Cessna Golden Eagle 421
→
05/29/2026
3h 31m
△ Low approach-stability score
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window