Skip to main content
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

At a glance

Tower
126.85
Runways
12/30
Elevation
506 ft

Times in UTC. Reference only: verify with the AIP and NOTAMs.

This information may contain errors or be outdated. Create a free account to suggest corrections and earn points.
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:
Help keep this data accurate!
See a next to a field? Click it to confirm the info is still correct. Recently verified Outdated — please verify

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: Not recorded
  • 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: Not recorded
  • PPR Required: Not recorded
  • PPR Contact: N/A
  • Remarks: N/A

Immigration

  • Port of Entry: Not recorded
  • APIS Required: Not recorded
  • GAR Required: Not recorded
  • Remarks: N/A

Airport Services

No services listed for this airport yet.

Are you a service provider? Register here to appear in this airport's listing.

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

M25/26
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.
2026-08-19 20:01 UTC 2026-11-01 14:00 UTC
M0031/
info
NAVAID NSI TACAN UNUSABLE SECONDARY STACK CH B OTS
2026-10-26 15:59 UTC 2027-01-01 14:00 UTC
M31/26
info
NAVAID NSI TACAN UNUSABLE SECONDARY STACK CH B OTS
2026-10-26 15:59 UTC 2027-01-01 14:00 UTC

+2 more active NOTAMs

NOTAMs received from the FAA NOTAM feed (last message 2026-10-28 19:35 UTC). This list is built from the feed as NOTAMs are issued and is not checked against the FAA's full list: confirm with FAA NOTAM Search before flight.
View all NOTAMs on Map

Suggest an Edit

Airport History

No milestones recorded for San Nicolas Island Nolf Airport yet. Know when it opened, who built it or a notable event? Add it with a source.

Add a historical fact
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?
It depends on the flight. No permits required for private non-revenue flights. eAPIS manifest mandatory for all international arrivals/departures. Permit details for 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.