Mason County Airport (KLDM), Michigan
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Mason County Airport, identified by the code KLDM, serves Ludington, Michigan with two paved runways and non-towered operations under CTAF procedures. Positioned roughly 102 nautical miles from the nearest metro area, the field handles a mix of general and business aviation traffic, with FAA TFMSC data crediting the airport with 966 total operations in 2025, of which 687 were business aviation. The nearest customs facility is KSBM, about 63.56 nautical miles away, since KLDM does not offer onsite customs clearance.
Runways
Mason County Airport has two paved runways. The longest, 08/26, is 5,003 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
Mason County Airport has Jet A+ and 100LL available on the field. The airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Mason County Airport does not clear customs. The nearest port of entry is Sheboygan County Memorial International (KSBM), 64 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Mason County Airport recorded 687 business aviation movements in 2025. Traffic peaks in August. Business aviation traffic at KLDM is concentrated in the summer months, with June through August accounting for the highest monthly operation counts of the year.
Business jet movements, FAA TFMSC count. Peak month August, 108 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Mason County Airport averages 1.9 days above 90°F in July and 29.3 freeze days in January. July is the warmest month, with average highs of 79.0°F, and January the coldest, at 29.2°F.
Weather station is 3.4 NM from the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Mason County Airport has published operating constraints in three categories: runway notes, environmental and other notes.
Runway end identifier lights are pilot-activated for runway 26. PAPI is available for runways 08, 26, 01, and 19. Medium intensity runway lighting is available for runways 08/26 and 01/19, activated on CTAF.
Deer, large birds, and other wildlife are present on and in the vicinity of the airport.
For clearance delivery, if unable to contact on the flight service station frequency, contact Minneapolis ARTCC.
Source: FAA Chart Supplement.
Nearby airfields
Mason County Airport has five airfields within 42 NM. The closest is Manistee County / Blacker (KMBL), 19.86 NM north.
Source: Skystar calculation from official coordinates.
Skystar at KLDM
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.
$2,400.00 catering order at KLDM.
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 KLDM?
Mason County Airport, identified as KLDM, has two paved asphalt runways. Runway 08/26 is the longer of the two at 5,003 feet by 75 feet wide. Runway 01/19 measures 3,503 feet by 75 feet wide. Both runways are equipped with medium intensity runway lighting on CTAF, and PAPI is available on all four runway ends. Runway 26 also has runway end identifier lights.
Is KLDM a towered airport?
KLDM, or Mason County Airport in Ludington, Michigan, is not a towered facility. Pilots coordinate movements using CTAF, and lighting systems including MIRL and PAPI are pilot-activated on that same frequency. The airport operates on a published attendance schedule rather than continuous staffing. From April 16 through October 15 it is attended daily from 0900 to 1700. During the winter half of the year it is attended weekdays only during those same hours, with weekends unattended.
Does Mason County Airport have customs clearance onsite?
Mason County Airport does not have customs clearance onsite. The nearest customs facility is KSBM, located approximately 63.56 nautical miles away. Flights requiring customs processing need to route through that facility or another with clearance capability. Dispatchers planning international arrivals into KLDM should factor this distance into routing and timing decisions, since no customs officer is stationed at Ludington.
What fuel is available at KLDM?
KLDM offers 100LL avgas and A+ fuel, with Jet A also confirmed available on the field. Fuel access follows the airport's attendance schedule, since Mason County Airport is not continuously staffed. During the summer season, April 16 through October 15, the field is attended daily from 0900 to 1700. In winter, attendance drops to weekdays only, with the airport unattended on weekends. Dispatchers should plan fuel stops around these attended hours.
How busy is Mason County Airport and when is it busiest?
Mason County Airport, KLDM, recorded 966 total annual operations in 2025 according to FAA TFMSC data, with 687 of those attributed to business aviation. Traffic is concentrated in the summer months, peaking in August at 108 business aviation operations, with July and June also showing elevated activity. Winter months are markedly quieter, with December recording only 8 business aviation operations and November 14. Dispatchers scheduling flights into KLDM should anticipate higher activity levels through the summer season.