YEL21 is operated by SUMMIT AVIATION INC between Sportsmans Field (US-1032) and Gallatin Field (KBZN). The flight is most often flown by a DIAMOND Diamond 20 Katana. Typical block time is 0h 54m. SkyMeter has observed 107 legs of this flight number via ADS-B.

✈
FLIGHTS
107
last 90 days
⏱
AVG DURATION
54m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/24/2026
first → last seen
🗺
ROUTES / TYPES
20 / 1
city pairs · airframes
⚠
INCIDENT RATE
3.7%
4 flagged

Routes flown

By count · last 90 days

10
US-1032 → KBZN
7
avg 25m · Sportsmans Field → Gallatin Field
KBZN → KEKS
4
avg 23m · Gallatin Field → Ennis Big Sky
KBZN → K7S1
4
avg 48m · Gallatin Field → Ruby Valley Field
K8U8 → KBZN
3
avg 24m · Townsend → Gallatin Field
MT41 → KBZN
3
avg 44m · Jefco Skypark → Gallatin Field
KEKS → KBZN
2
avg 35m · Ennis Big Sky → Gallatin Field
KBZN → K8U8
2
avg 18m · Gallatin Field → Townsend
2MT8 → KBZN
1
avg 21m · South Boulder → Gallatin Field
1MT1 → KBZN
1
avg 1h 7m · Krinitt Helicopters Heliport → Gallatin Field
KBZN → KHLN
1
avg 39m · Gallatin Field → Helena

Aircraft types

Equipment used on this number

1
DV20 DIAMOND Diamond 20 Katana
111

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 YEL21

30
N831TWDIAMOND Diamond 20 Katana
→
08/24/2026
42m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
08/24/2026
24m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
08/24/2026
1h 17m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
08/21/2026
1h 0m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
08/21/2026
34m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
08/19/2026
1h 7m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
08/19/2026
9m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
08/05/2026
53m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
08/05/2026
1h 29m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
08/04/2026
1h 6m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
08/04/2026
14m
△ Low approach-stability score
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
08/04/2026
22m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
08/04/2026
13m
△ Low approach-stability score
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
08/04/2026
18m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
07/30/2026
1h 31m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
07/30/2026
1h 11m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
07/29/2026
46m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
07/29/2026
23m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
07/29/2026
26m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
07/29/2026
27m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
07/29/2026
25m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
07/29/2026
56m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
07/28/2026
1h 11m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
07/27/2026
1h 40m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
07/27/2026
1h 21m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
07/25/2026
1h 29m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
07/24/2026
28m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
07/24/2026
29m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
07/24/2026
16m
No alerts
Replay Analysis
N831TWDIAMOND Diamond 20 Katana
→
07/24/2026
52m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window