KONZ
Grosse Ile Municipal Airport
Detroit/Grosse Ile, MichiganElevation 591 ftSmall airport
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Runway detail & declared distances
17/35
RWY 17167°T
Displaced threshold672 ft
VGSIPAPI (P4L)
Traffic patternLeft
RWY 35347°T
VGSIPAPI (P4L)
Traffic patternRight
H1
RWY H1
H2
RWY H2
04/22
RWY 0430°T
REILYes
VGSIPAPI (P4L)
Traffic patternRight
RWY 22210°T
Displaced threshold428 ft
REILYes
VGSIPAPI (P4L)
Traffic patternLeft
Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.
AIRPORT INFORMATION
Facility & services
Grosse Ile Municipal Airport is in Detroit/Grosse Ile, Michigan. Field elevation 591 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.
OPERATIONS & CONTACT
OwnershipPublicly owned
UseOpen to the public
TypeSmall airport
ManagerJANEL MACNEE
Manager phone734-675-0155
AttendedALL SAT-SUN, PRIOR ARNGMT
CHARTS & AIRSPACE
ICAO / IATAKONZ
SectionalDETROIT
Center (ARTCC)CLEVELAND
Flight service (AFSS)LANSING
RegionMichigan
CountryUnited States
Coordinates42.0991, -83.1615
Distance from city2 NM S
SERVICES & LIGHTING
Fuel100LL · Jet A
Control towerNon-towered
Field lightingSee remarks
BeaconSunset to sunrise · White-green (lighted land airport)
CTAF123.000
UNICOM123.000
FREQUENCIES
Communications
134.3
DETROIT APP
APP
119.675
AWOS 3
AWOS
134.3
DETROIT DEP
DEP
115.7
LANSING RDO
RDO
123
CTAF/UNICOM
UNIC
123.000
CTAF
CTAF
123.000
UNICOM
UNICOM
Not all tower/ground/approach frequencies are in our datasets. Verify with the FAA Chart Supplement.
AIRPORT REMARKS
Operational remarks
›ULTRALIGHT & PWRD PRCHT ACT INVOF ARPT.
›FOR CD CTC DETROIT APCH AT 734-955-1404.
›ARPT CLSD TO ACR OPS GTR THAN 30 PAX SEATS EXC PPR CALL AMGR.
›ACTVT REIL RWY 04 & 22; PAPI RWY 04, 22, 17, & 35; MIRL RWY 04/22 & 17/35 - CTAF.
›APCH RATIO 20:1 TO DTHR.
›EXTSV PEELING & CRACKING - FOD HAZ.
›BIRDS & DEER ON & INVOF ARPT.
FREQUENTLY ASKED
Does KONZ have a METAR?
Yes. KONZ is a METAR-reporting station; the current observation loads live on this page.
Does KONZ have a TAF?
When KONZ issues a TAF, its decoded forecast timeline loads live on this page; otherwise use the nearest TAF-issuing field as a planning reference.
What is the field elevation at KONZ?
KONZ sits at 591 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for KONZ?
No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.
This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.