N401S is operated by UNDERHILL HOLDINGS LLC between Tweed New Haven Airport (KHVN) and Westchester County Airport (KHPN). The flight is most often flown by a CESSNA Cessna 208 Caravan 1. Typical block time is 0h 22m. SkyMeter has observed 21 legs of this flight number via ADS-B.

FLIGHTS
21
last 90 days
AVG DURATION
22m
tracked time
📅
SERVICE PERIOD
07/27/2025 → 07/05/2026
first → last seen
🗺
ROUTES / TYPES
19 / 1
city pairs · airframes
INCIDENT RATE
33.3%
7 flagged

Routes flown

By count · last 90 days

10
1
avg 13m · East Hampton → Igor I Sikorsky
1
avg 19m · East Hampton → Tweed New Haven
1
avg 13m · Tweed New Haven → East Hampton
1
avg 26m · East Hampton → Westchester County
1
avg 47m · Montauk → Linden
1
avg 27m · Tweed New Haven → La Guardia
1
avg 19m · Tweed New Haven → Montauk
1
avg 14m · Elizabeth Field → Francis S Gabreski
1
avg 22m · Tweed New Haven → Westchester County
1
avg 35m · Tweed New Haven → John F Kennedy

Aircraft types

Equipment used on this number

1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
7
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 N401S

30
07/05/2026
36m
△ Unstable approach
07/05/2026
46m
△ Unstable approach
07/04/2026
35m
⛨ TFR entry△ Unstable approach
07/04/2026
14m
△ Unstable approach
07/03/2026
6m
△ Unstable approach
07/01/2026
13m
△ Unstable approach
06/30/2026
15m
△ Unstable approach
01/08/2026
1h 35m
△ Unstable approach
09/30/2025
15m
△ Unstable approach
09/30/2025
7m
△ Unstable approach
09/30/2025
4m
△ Unstable approach
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window