TWY121

EF FALCON LLC · ATW → ILG

TWY121 is operated by EF FALCON LLC between Appleton International Airport (KATW) and New Castle Airport (KILG). The flight is most often flown by a GULFSTREAM AEROSPACE Gulfstream G650. Typical block time is 1h 34m. SkyMeter has observed 20 legs of this flight number via ADS-B.

✈
FLIGHTS
20
last 90 days
⏱
AVG DURATION
1h 34m
tracked time
📅
SERVICE PERIOD
06/12/2025 → 08/23/2026
first → last seen
🗺
ROUTES / TYPES
12 / 1
city pairs · airframes
⚠
INCIDENT RATE
5.0%
1 flagged

Routes flown

By count · last 90 days

6
KATW → KILG
1
avg 1h 27m · Appleton → New Castle
KILG → KFOK
1
avg 40m · New Castle → Francis S Gabreski
KILG → KACK
1
avg 46m · New Castle → Nantucket
KFOK → KACK
1
avg 1h 2m · Francis S Gabreski → Nantucket
KFOK → KILG
1
avg 40m · Francis S Gabreski → New Castle
KILG → K1B2
1
avg 1h 51m · New Castle → Katama Airpark

Aircraft types

Equipment used on this number

1
GLF6 GULFSTREAM AEROSPACE Gulfstream G650
28

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
1
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 TWY121

30
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
08/23/2026
53m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
08/23/2026
31m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
08/22/2026
36m
△ Low approach-stability score
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
08/22/2026
45m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
08/19/2026
34m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
08/18/2026
1h 2m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
08/18/2026
40m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
08/18/2026
40m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
08/18/2026
27m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
08/17/2026
42m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
08/16/2026
1h 27m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
08/15/2026
59m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
07/08/2026
1h 56m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
07/07/2026
1h 51m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
07/05/2026
50m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
07/05/2026
41m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
06/26/2026
51m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
06/26/2026
2h 33m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
06/26/2026
48m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
06/24/2026
53m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
06/24/2026
39m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
06/24/2026
5h 2m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
06/21/2026
56m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
06/21/2026
42m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
06/21/2026
4h 8m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
06/19/2026
56m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
06/19/2026
37m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
06/19/2026
5h 5m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
05/18/2026
1h 13m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
05/18/2026
1h 2m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window