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KONZ Grosse Ile Municipal Airport
Detroit/Grosse Ile, Michigan, USA

GOING TO DETROIT/GROSSE ILE?


FAA INFORMATION EFFECTIVE 14 MAY 2026

Location

FAA Identifier: ONZ
Lat/Long: 42-05-56.6810N 083-09-41.2560W
42-05.944683N 083-09.687600W
42.0990781,-83.1614600
(estimated)
Elevation: 590.5 ft. / 180.0 m (surveyed)
Variation: 07W (2010)
From city: 2 miles S of central business district of the associated city
Time zone: UTC -4 (UTC -5 during Standard Time)
Zip code: 48138

Airport Operations

Airport use: Open to the public
Activation date: 05/1941
Control tower: no
ARTCC: CLEVELAND CENTER
FSS: LANSING FLIGHT SERVICE STATION
NOTAMs facility: ONZ (NOTAM-D service available)
Attendance: MON-FRI 0800-1800, ALL SAT-SUN PRIOR ARNGMT
Wind indicator: lighted
Segmented circle: yes
Lights: ACTVT REIL RWY 04 & 22; PAPI RWY 04, 22, 17, & 35; MIRL RWY 04/22 & 17/35 - CTAF.
Beacon: white-green (lighted land airport)
Operates sunset to sunrise.
Airline operations: ARPT CLSD TO ACR OPS GTR THAN 30 PAX SEATS EXC PPR CALL AMGR.

Airport Communications

CTAF/UNICOM: 123.0
WX AWOS-3P: 119.675 (734-692-9686)
DETROIT APPROACH: 134.3
DETROIT DEPARTURE: 134.3
WX ASOS at DTW (11 nm NW): PHONE 231-202-2054
WX AWOS-3P at TTF (15 nm SW): 119.075 (734-384-0259)
WX ASOS at YIP (19 nm NW): PHONE 734-961-6843
WX ASOS at DET (20 nm N): PHONE 313-371-9696

Nearby radio navigation aids

VOR radial/distance  VOR name  Freq  Var
DXOr133/11.4DETROIT VOR/DME113.4006W
CRLr080/13.5CARLETON VOR/DME115.7003W
SVMr137/26.7SALEM VORTAC114.3003W

Airport Services

Fuel available: 100LL JET-A
Parking: hangars and tiedowns
Airframe service: MAJOR
Powerplant service: MAJOR
Bottled oxygen: NONE
Bulk oxygen: NONE

Runway Information

Runway 4/22

Dimensions: 4846 x 100 ft. / 1477 x 30 m
Surface: asphalt, in good condition
Weight bearing capacity: 
Single wheel: 66.0
Double wheel: 83.0
Double tandem: 105.0
Runway edge lights: medium intensity
RUNWAY 4  RUNWAY 22
Latitude: 42-05.601227N42-06.289745N
Longitude: 083-09.742193W083-09.200983W
Elevation: 576.8 ft.589.3 ft.
Traffic pattern: rightleft
Runway heading: 037 magnetic, 030 true217 magnetic, 210 true
Displaced threshold: no428 ft.
Markings: nonprecision, in good conditionnonprecision, in good condition
Visual slope indicator: 4-light PAPI on left (3.04 degrees glide path)4-light PAPI on left (3.04 degrees glide path)
Runway end identifier lights: yesyes
Touchdown point: yes, no lightsyes, no lights
Obstructions: 37 ft. tree, 790 ft. from runway, 308 ft. left of centerline, 15:1 slope to clear65 ft. trees, 1010 ft. from runway, 344 ft. left of centerline, 12:1 slope to clear
APCH RATIO 20:1 TO DTHR.

Runway 17/35

Dimensions: 4424 x 75 ft. / 1348 x 23 m
Surface: concrete, in poor condition
EXTSV PEELING & CRACKING - FOD HAZ.
Weight bearing capacity: 
Single wheel: 40.0
Double wheel: 55.0
Double tandem: 90.0
Runway edge lights: medium intensity
RUNWAY 17  RUNWAY 35
Latitude: 42-06.298312N42-05.589238N
Longitude: 083-10.036057W083-09.812280W
Elevation: 581.3 ft.578.3 ft.
Traffic pattern: leftright
Runway heading: 174 magnetic, 167 true354 magnetic, 347 true
Displaced threshold: 672 ft.no
Markings: basic, in fair conditionbasic, in fair condition
Visual slope indicator: 4-light PAPI on left (3.00 degrees glide path)4-light PAPI on left (3.00 degrees glide path)
Runway end identifier lights: nono
Touchdown point: yes, no lightsyes, no lights
Obstructions: 80 ft. trees, 1180 ft. from runway, 40 ft. right of centerline, 12:1 slope to clearnone

Helipad H1

Dimensions: 25 x 25 ft. / 8 x 8 m
Surface: concrete
Latitude: 42-06.319333N
Longitude: 083-09.471333W
Elevation: 595.0 ft.
Traffic pattern: leftleft

Helipad H2

Dimensions: 25 x 25 ft. / 8 x 8 m
Surface: concrete
Latitude: 42-06.318500N
Longitude: 083-09.449667W
Elevation: 594.0 ft.
Traffic pattern: leftleft

Airport Ownership and Management from official FAA records

Ownership: Publicly-owned
Owner: TOWNSHIP OF GROSSE ILE
PO BOX 129, PO BOX 129
GROSSE ILE, MI 48138
Phone 734-675-0155
Manager: JANEL MACNEE
P.O. BOX 129, PO BOX 129
GROSSE ILE, MI 48138
Phone 734-675-0155

Additional Remarks

BIRDS & DEER ON & INVOF ARPT.
ULTRALIGHT & PWRD PRCHT ACT INVOF ARPT.
FOR CD CTC DETROIT APCH AT 734-955-1404.

Instrument Procedures

NOTE: All procedures below are presented as PDF files. If you need a reader for these files, you should download the free Adobe Reader.

NOT FOR NAVIGATION. Please procure official charts for flight.
FAA instrument procedures published for use from 14 May 2026 at 0901Z to 11 June 2026 at 0900Z.

 
STARs - Standard Terminal Arrivals
FOREY TWO (RNAV)   download (160KB)
GIGGY TWO (RNAV)   download (140KB)
PETTE TWO (RNAV)   download (210KB)
RRALF THREE (RNAV)   download (162KB)
 
IAPs - Instrument Approach Procedures
RNAV (GPS) RWY 04   download (193KB)
RNAV (GPS) RWY 22   download (200KB)
VOR-A   download (170KB)
NOTE: Special Alternate Minimums apply   download (139KB)
 
Departure Procedures
BARII THREE (RNAV)   download (180KB)
CCOBB THREE (RNAV)   download (217KB)
CLVIN THREE (RNAV)   download (200KB)
HHOWE FOUR (RNAV)   download (205KB)
KAYLN THREE (RNAV)   download (185KB)
KZLOV TWO (RNAV)   download (180KB)
LIDDS FOUR (RNAV)   download (204KB)
MIGGY THREE (RNAV)   download (217KB)
PAVYL THREE (RNAV)   download (193KB)
SNDRS THREE (RNAV)   download (232KB)
TRMML FOUR (RNAV)   download (184KB)
ZETTR FOUR (RNAV)   download (227KB)
NOTE: Special Take-Off Minimums/Departure Procedures apply   download (208KB)

Other nearby airports with instrument procedures:

KDTW - Detroit Metro Wayne County Airport (11 nm NW)
KTTF - Custer Airport (15 nm SW)
KYIP - Willow Run Airport (19 nm NW)
1D2 - Canton-Plymouth-Mettetal Airport (20 nm NW)
KDET - Coleman A Young Municipal Airport (20 nm N)
 
Loc | Ops | Rwys | IFR | FBO | Links
Com | Nav | Svcs | Stats | Notes
Area around KONZ (Grosse Ile Municipal Airport)
 
Road maps at: MapQuest Bing Google
 
Aerial photo
WARNING: Photo may not be current or correct
Aerial photo of KONZ (Grosse Ile Municipal Airport)
Photo by Cathy Vajtay
Photo taken 21-Jun-2015
looking southeast.

Do you have a better or more recent aerial photo of Grosse Ile Municipal Airport that you would like to share? If so, please send us your photo.

 
Sectional chart

 
Airport distance calculator
Flying to Grosse Ile Municipal Airport? Find the distance to fly.

From to KONZ

Sunrise and sunset
Times for 27-May-2026
 Local
(UTC-4)
 Zulu
(UTC)
Morning civil twilight05:3009:30
Sunrise06:0310:03
Sunset20:5700:57
Evening civil twilight21:3001:30

Current date and time
Zulu (UTC)  27-May-2026 10:44:57
Local (UTC-4)  27-May-2026 06:44:57
 
METAR
KONZ 271035Z AUTO 33002KT 5SM BR CLR 14/14 A2997 RMK AO2
KDTW 
11nm NW 
270953Z 00000KT 9SM SCT080 BKN120 BKN240 17/13 A2997 RMK AO2 SLP143 T01720128
CXHA 
12nm E 
271000Z AUTO 00000KT 15/15 RMK AO1 SLP144 T01470147 55005
CYQG 
14nm NE 
271000Z AUTO 00000KT 9SM OVC240 16/15 A2997 RMK SLP148 DENSITY ALT 900FT
KTTF 
15nm SW 
271035Z AUTO 28002KT 8SM CLR 13/13 A2998 RMK AO2
KYIP 
18nm NW 
270953Z AUTO 00000KT 10SM CLR 16/13 A2997 RMK AO2 SLP143 T01560133
KDET 
19nm N 
270953Z 02005KT 10SM CLR 18/13 A2997 RMK AO2 SLP144 T01780133
TAF
KDTW 
11nm NW 
270853Z 2709/2812 VRB03KT P6SM SCT120 BKN250 FM271600 03005KT P6SM FEW050 SCT100 BKN200 PROB30 2720/2724 5SM -SHRA SCT050 BKN080 OVC100 FM280300 02007KT P6SM FEW050
CYQG 
14nm NE 
270540Z 2706/2806 22005KT P6SM BKN240 BECMG 2706/2708 VRB03KT FM271500 05006KT P6SM FEW080 BECMG 2716/2718 08006KT FM280000 03006KT P6SM BKN080 TEMPO 2800/2805 P6SM -SHRA FM280500 03006KT P6SM FEW070 RMK FCST BASED ON AUTO OBS. NXT FCST BY 271200Z
KYIP 
18nm NW 
270520Z 2706/2806 VRB04KT P6SM BKN250 FM271600 03005KT P6SM FEW050 SCT100 BKN200 PROB30 2720/2724 5SM -SHRA SCT050 BKN080 OVC100 FM280300 02007KT P6SM FEW050
KDET 
19nm N 
270520Z 2706/2806 VRB04KT P6SM BKN250 FM271600 03005KT P6SM FEW050 SCT100 BKN200 PROB30 2720/2724 5SM -SHRA SCT050 BKN080 OVC100 FM280300 02007KT P6SM FEW050
NOTAMs
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FBO, Fuel Providers, and Aircraft Ground Support

  
 Business Name 
 
 Contact 
 
 Services / Description 
 
Fuel Prices
 
Comments
  
 Grosse Ile Municipal Airport
734-675-0155
734-692-6424
[web site]
[email]
Airport management, Aviation fuel, Aircraft parking (ramp or tiedown), Hangars, Hangar leasing / sales, Passenger terminal and lounge, ...
 
Multi Service® Aviation Card  
 
More info about Grosse Ile Municipal Airport
Phillips 66
100LL Jet A
AS $6.52 $6.02 
 Updated 01-May-2026
 
   write
AS=Assisted/Self Service
Update Fuel Prices
 

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Other Pages about Grosse Ile Municipal Airport

www.grosseileairport.com
Page from the Michigan Airport Directory (PDF)
 
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