What is the tower frequency at KNSI?

The tower frequency at San Nicolas Island Nolf Airport is 126.85 MHz.

Does KNSI require landing permits?

Yes, landing permits are required for San Nicolas Island Nolf Airport (United States).

Where is KNSI located?

San Nicolas Island Nolf Airport (KNSI) is located in San Nicolas Island, United States.

How long is the runway at KNSI?

The main runway at San Nicolas Island Nolf Airport (12/30) measures 3049x61m.

Reference data only — not for flight planning or navigation. Verify with official sources (AIP, NOTAMs, ATC). Full disclaimer

San Nicolas Island Nolf Airport (KNSI) — San Nicolas Island, United States

San Nicolas Island Nolf Airport (KNSI) serves San Nicolas Island, United States. This is a small airport with 1 runway (12/30). Field elevation is 506 ft AMSL. Data on this page is maintained by the aviation community — contribute to keep it accurate.

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65% Data Complete 34 of 52 points

Missing: Operations, Fuel, Contacts

Section Breakdown

Basic Info 7/7

Runways 4/4

Frequencies 2/4

Operations 0/2

Fuel 0/1

Contacts 0/2

Additional Info 2/10

Data last updated: 2026-03-27

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Basic Airport Information

ICAO: KNSI
Name: San Nicolas Island Nolf Airport
Type: small_airport
Category: Military
Latitude: 33.239799
Longitude: -119.458
Elevation: 506 ft
Country: United States
Municipality: San Nicolas Island
IATA Code: N/A
FAA Code: N/A
FIR: N/A
Timezone: America/Los_Angeles
Distance from City: N/A km
VFR: Yes
IFR: No

Runways

Runway 12/30

Designation: 12/30
Dimensions: 3049x61m
Surface: PEM
PCN: 63
Lighting: Lighted
NAVAIDs: N/A
Approach Types: N/A
Remarks: N/A

Frequencies

Tower: 126.850 MHz
Ground: N/A
Operations: 121.500, 243.000 MHz
Traffic/Approach: N/A
ATIS: N/A

Operation Hours

Monday N/A

Tuesday N/A

Wednesday N/A

Thursday N/A

Friday N/A

Saturday N/A

Sunday N/A

Extra Hours On Request: No
Remarks: N/A

Contacts

AIS Tel: N/A
ARO Tel: N/A
MET Tel: N/A
Admin Tel: N/A
Health Tel: N/A
Police Tel: N/A
Authorities Tel: N/A
Website: N/A
Remarks: N/A

Slots / PPR

Slot Required: No
PPR Required: No
PPR Contact: N/A
Remarks: N/A

Immigration

Port of Entry: No
GENDEC Required: No
GAR Required: No
Remarks: N/A

Airport Services

No services listed for this airport yet.

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United States Permit Requirements

Fast Landing: 1d

Overflight Permit: No
Landing Permit: Conditional
Overflight Lead Time: N/A
Landing Lead Time: 60 minutes minimum (eAPIS manifest before departure); recommend 24-48 hours for CBP port notification

Private / GA Operations:

No permits required for private non-revenue flights. eAPIS manifest mandatory for all international arrivals/departures.

View Full United States Permit Details

Active NOTAMs

M0019/26 critical

Aerodrome closed

AERODROME CLSD 28 JUL 1100-1300L DUE TO FOD WALKDOWN

2026-07-13 17:48:00 2026-07-28 20:00:00

M0016/26 caution

Taxiway lighting closed

TWY E CLSD NORTH ELBOW CLSD TO HEAVY AIRCRAFT ACFT DUE TO PAVEMENT DETERIORATION AND ONGOING PRESERVATION EFFORTS. LIMITED EXCEPTIONS REQUIRE AFLD MGR APPROVAL.

2026-06-08 15:35:00 2026-09-01 14:00:00

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Nearby Airports

KNUC San Clemente Island Naval Auxiliary Landing Field 46 NM 44CA Santa Cruz Ranch Airstrip 46 NM CA97 Christy Airstrip 51 NM KAVX Catalina Airport 53 NM KSZN Santa Cruz Island Airport 54 NM KNTD Point Mugu Naval Air Station (Naval Base Ventura Co) 55 NM KOXR Oxnard Airport 59 NM KCMA Camarillo International Airport 61 NM

Compare KNSI with KNUC side by side →

Airport History

Discover the key milestones and historical events that shaped San Nicolas Island Nolf Airport. Our community-powered timeline traces this airport's journey from its origins to the present day.

Explore History

Frequently Asked Questions

What is the tower frequency at KNSI?: The tower frequency at San Nicolas Island Nolf Airport is 126.85 MHz.
Does KNSI require landing permits?: Yes, landing permits are required for San Nicolas Island Nolf Airport (United States).
Where is KNSI located?: San Nicolas Island Nolf Airport (KNSI) is located in San Nicolas Island, United States.
How long is the runway at KNSI?: The main runway at San Nicolas Island Nolf Airport (12/30) measures 3049x61m.

View on Map