Flight Status & Tracker

TWY121

EF FALCON LLC · ILG → ACK · Last tracked Oct 19, 2026

TWY121 is a flight number operated by EF FALCON LLC between New Castle Airport (KILG) and Nantucket Memorial Airport (KACK). SkyMeter last tracked TWY121 on October 19, 2026. The flight is most often flown by a GULFSTREAM AEROSPACE Gulfstream G650. Typical block time is 1h 8m. SkyMeter has observed 25 legs of this flight number via ADS-B.

SkyMeter tracks historical flight activity from ADS-B data — this is not a live gate-to-gate status feed.

✈
FLIGHTS
25
last 90 days
⏱
AVG DURATION
1h 8m
tracked time
📅
SERVICE PERIOD
6/12/2025 → 10/19/2026
first → last seen
🗺
ROUTES / TYPES
16 / 1
city pairs · airframes
⚠
INCIDENT RATE
4.0%
1 flagged

Routes flown

By count · last 90 days

10
KILG → KACK
4
avg 45m · New Castle → Nantucket
57MA → KILG
2
avg 51m · Nantucket Cottage Hospital Helipad → New Castle
KBHB → KILG
1
avg 1h 49m · Hancock County-Bar Harbor → New Castle
KATW → KILG
1
avg 1h 27m · Appleton → New Castle
KBHB → KPVD
1
avg 45m · Hancock County-Bar Harbor → Theodore Francis Green State
KFOK → KILG
1
avg 40m · Francis S Gabreski → New Castle
KILG → KPVD
1
avg 1h 42m · New Castle → Theodore Francis Green State
KILG → KBHB
1
avg 1h 55m · New Castle → Hancock County-Bar Harbor
KPVD → KILG
1
avg 1h 3m · Theodore Francis Green State → New Castle
KILG → KFOK
1
avg 40m · New Castle → Francis S Gabreski

Aircraft types

Equipment used on this number

1
GLF6 GULFSTREAM AEROSPACE Gulfstream G650
27

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
→
10/19/2026
1h 3m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
10/19/2026
45m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
10/19/2026
1h 55m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
9/30/2026
47m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
9/29/2026
49m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
9/22/2026
55m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
9/20/2026
44m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
9/15/2026
1h 48m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
9/14/2026
1h 42m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
9/8/2026
49m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
9/8/2026
41m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
9/8/2026
4h 24m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
9/4/2026
2h 8m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
9/1/2026
1h 12m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
9/1/2026
42m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
8/23/2026
53m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
8/23/2026
31m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
8/22/2026
36m
△ Low approach-stability score
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
8/22/2026
45m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
8/19/2026
34m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
8/19/2026
1h 2m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
8/18/2026
40m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
8/18/2026
40m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
8/18/2026
27m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
8/17/2026
42m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
8/16/2026
1h 27m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
8/16/2026
59m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
7/8/2026
1h 56m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
7/8/2026
1h 51m
No alerts
Replay Analysis
N121EFGULFSTREAM AEROSPACE Gulfstream G650
→
7/5/2026
50m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window