Gratiot Community Airport (KAMN), Michigan
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Gratiot Community Airport (KAMN) serves Alma, Michigan with a paved crosswind runway layout suited to light business turboprops and piston traffic, sitting roughly 80 nautical miles from the nearest major metro area. The field is uncontrolled and operates on a part-time attendance schedule, with fuel available and pilot-activated lighting on CTAF. Customs clearance is not handled onsite; the nearest customs facility is at KMBS, about 29 nautical miles away. Approach and departure control support comes from Great Lakes Approach, with Cleveland ARTCC as backup when the approach facility is closed.
Runways
Gratiot Community Airport has two paved runways. The longest, 09/27, is 5,004 ft long and 75 ft wide, with an asphalt surface.
Runway geometry from published threshold coordinates. Not for navigation.
Runways are listed longest first.
Source: FAA Form 5010.
Fuel and airfield services
Gratiot Community Airport has Jet A+ and 100LL available on the field. Fueling is available from 8:30am to 2:30pm, daily, and the airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Gratiot Community Airport does not clear customs. The nearest port of entry is Mbs International (KMBS), 29 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Gratiot Community Airport recorded 272 business aviation movements in 2025. Traffic peaks in July. Business aviation traffic at KAMN peaks in July and April, with the quietest months falling in December and February.
Business jet movements, FAA TFMSC count. Peak month July, 47 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Gratiot Community Airport averages 4.2 days above 90°F in July, 29.9 freeze days in January and 3.9 snow days in January. July is the warmest month, with average highs of 82.2°F, and January the coldest, at 29.1°F.
Weather station is 4.3 NM from the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Gratiot Community Airport has published operating constraints in four categories: access, runway notes, environmental and other notes.
For clearance delivery, contact Great Lakes Approach; when approach is closed, contact Cleveland ARTCC.
REIL for runway 09 and 27, PAPI for runway 09 and 27, and MIRL for runway 09/27 and 18/36 are pilot-activated on CTAF.
Deer and large birds are present on and in the vicinity of the airport.
At the administration building, key the mic five times, then three and two times simultaneously, then once, to activate the system.
Source: FAA Chart Supplement.
Nearby airfields
Gratiot Community Airport has five airfields within 30 NM. The closest is Mount Pleasant Municipal (KMOP), 18.11 NM north.
Source: Skystar calculation from official coordinates.
Skystar at KAMN
We arrange catering, fuel and trip support here. Supplier prices reach you unchanged; our coordination fee sits on its own line.
The same order, priced two ways.
$1,200.00 catering order at KAMN.
Unchanged.
What the kitchen invoices us is what your quote reads.
One line, fixed.
It does not move with the size of the order.
At cost.
Passed on at the exact amount the processor took.
Market practice figures are industry averages, not a specific competitor.
Frequently asked questions
What runways are available at KAMN?
Gratiot Community Airport (KAMN) has two paved asphalt runways. Runway 09/27 is the longer of the two at 5,004 feet by 75 feet wide, and runway 18/36 measures 3,198 feet by 75 feet wide. Both runways support the field's business turboprop and piston traffic. Runway lighting, including REIL and PAPI on 09/27 and MIRL on both runways, is pilot-activated via CTAF.
Is KAMN a towered airport?
Gratiot Community Airport (KAMN) is uncontrolled, meaning pilots coordinate arrivals and departures on a common traffic advisory frequency rather than through a tower. Attendance at the field runs Monday through Saturday from 0830 to 1430 local time. Outside those hours, standard uncontrolled field procedures apply. Great Lakes Approach handles instrument approach traffic when active.
Does KAMN have customs clearance onsite?
Gratiot Community Airport (KAMN) does not offer onsite customs clearance. The nearest customs facility is at KMBS, located approximately 29.39 nautical miles away. Flight crews requiring customs processing near Alma, Michigan should plan to route through KMBS rather than expecting clearance at KAMN itself.
What fuel is available at KAMN?
Gratiot Community Airport (KAMN) offers 100LL avgas and A+ fuel, and Jet A is also available on the field. This mix supports both piston and turbine business aircraft operating out of Alma, Michigan. Fuel service aligns with the airport's attended hours, Monday through Saturday from 0830 to 1430 local time.