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Grosse Ile Municipal (KONZ)

Detroit/Grosse Ile, MI

Airport Information

Flight Category:
Unavailable
Winds:
Unavailable
Clouds:
Unavailable
Visibility:
Unavailable
Elevation:
590.5 ft (180.0 m)
Ctrl Tower:
No
Runways:
04/22 (4846x100)
17/35 (4424x75)
Grosse Ile Municipal Pilot Reviews:

Bob M.

September 2, 2025

Called ahead for weekend support at the FBO which required fee. Jake was good with communication and got us parked and into the Ford 500 crew car. Worked fine for our day trip on the island. Look at NOTAMs for all of the inop equipment (ex 04 PAPI not working, etc). Would stop by again. Alpaca farm right near airport if you're feeling adventurous :)

Mp

May 12, 2025

Fine small airport with much history. Lovely location on the edge of Lake Erie, Grosse Ile is gem.

jason.kozak152

July 1, 2024

Enjoyed a good XC flight to ONZ on 6/27 from SW Ohio. A scenic approach over Lake Erie and an over-water final into Rwy 04. FBO personnel was good and had the crew car accessible as promised. Shout-out to Jake at the front desk. Cordial people from the flight school assisted with directions to Lloyd's for lunch since cell phone service is almost non existent. Wi-Fi is accessible at the FBO. Watch out for the Canadian airspace which is very close to the airfield and runway 04/22!

FBOs & Fuel
Grosse Ile Municipal Airport logo

Runway Information

Identifier:
RWY 04
Dimensions:
4846x100
Surface:
Asphalt
Elevation:
576.8ft
Traffic Pattern:
Right
Approach Lighting:
None
Visual Slope Indicator:
PAPI-4L
Displaced Threshold:
0ft
04

Recent Arrivals

IdentTypeFromTime
N10MW--11:42 AM

Scheduled Arrivals

No scheduled arrivals in the next 24 hours

Recent Departures

No recent departures at KONZ

Scheduled Departures

No scheduled departures in the next 24 hours

Radio Frequencies

AWOS:
119.675 MHz
CTAF:
123.000 MHz
UNICOM:
123.000 MHz
Detroit Approach:
134.3
Detroit Departure:
134.3

Remarks

APT Lighting Schedule: Actvt reil runway 04 & 22; papi runway 04, 22, 17, & 35; mirl runway 04/22 & 17/35 - CTAF.

ARFF Certification: Airport closed to acr operations gtr than 30 pax seats exc ppr call amgr.

Birds & deer on & in vicinity of airport.

For cd contact detroit approach at 734-955-1404.

Runway 17/35 Surface: Extsv peeling & cracking - fod haz.

Runway 22 Controlling Object Clearance Slope: Approach ratio 20:1 to dthr.

Ultralight & pwrd prcht act in vicinity of airport.