Mbs International (KMBS), Michigan
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
MBS International Airport, identified by the code KMBS and serving Saginaw, Michigan, sits roughly 73 nautical miles from the nearest major metro area and functions as a towered, public-use field with a long primary runway well suited to business jet operations. The airport combines onsite CBP inspection services with a USDA compliance agreement, giving international operators a customs option without a diversion, while its dual fuel offering of 100LL and Jet A supports a mixed fleet of piston and turbine traffic.
Runways
Mbs International has two paved runways. The longest, 05/23, is 8,002 ft long and 150 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
Mbs International has Jet A and 100LL available on the field. Fueling is available 24 hours a day, every day, and the airport has an operating control tower.
Source: FAA Form 5010 / NASR.
Customs
Mbs International has US Customs and Border Protection clearance available onsite, with general clearance for international arrivals. A USDA compliance agreement is in place.
Source: CBP list of ports of entry.
Business aviation traffic
Mbs International recorded 3,184 business aviation movements in 2025. Traffic peaks in July and September. Business aviation traffic at KMBS is concentrated in the summer and early fall months, peaking in September and July, with the quietest activity in the winter months of January and February.
Business jet movements, FAA TFMSC count. Peak month September, 323 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Mbs International averages 3.6 days above 90°F in July, 28.7 freeze days in January and 4.3 snow days in January. July is the warmest month, with average highs of 82.2°F, and January the coldest, at 29.5°F.
Weather station is on the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Mbs International has published operating constraints in four categories: access, runway notes, environmental and pavement strength.
For clearance delivery when the tower is closed, contact Great Lakes Approach; when approach control is closed, contact Cleveland Air Route Traffic Control Center.
When the air traffic control tower is closed, activate MALSR lighting for runways 05 and 23, and REIL lighting for runways 14 and 32, along with HIRL lighting for runways 05/23 and 14/32, via CTAF. PAPI units on runways 14, 23, and 32 operate continuously.
Birds observed on and in the vicinity of the airport.
PCR VALUE: 545/F/B/X/T
Source: FAA Chart Supplement.
Nearby airfields
Mbs International has five airfields within 30 NM. The closest is Jack Barstow (KIKW), 11.11 NM northwest.
Source: Skystar calculation from official coordinates.
Skystar at KMBS
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 KMBS.
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 KMBS?
MBS International Airport operates two paved asphalt runways. Runway 05/23 is the longer of the pair at 8,002 feet and 150 feet wide, supporting the majority of larger business jet traffic. Runway 14/32 measures 6,400 feet with the same 150-foot width. Both runways carry a published pavement classification of PCR VALUE: 545/F / B/X / T. The airport is towered, with all attendance hours covering the full day.
Does KMBS have customs available for international arrivals?
Yes, MBS International Airport has CBP inspection services available onsite along with a USDA compliance agreement. This allows international arrivals to clear customs directly at the field rather than diverting to another airport. Crews planning international legs should confirm current CBP staffing and any prior notice requirements directly with the inspection office before arrival. The airport is towered and operates on an ALL / ALL / ALL attendance schedule.
What fuel types are offered at MBS International?
MBS International Airport stocks both 100LL avgas and Jet A fuel, covering piston and turbine operators alike. The field supports a business aviation traffic base of 3,184 annual operations against a total of 8,869 annual operations recorded for 2025 according to FAA TFMSC data. This fuel availability, combined with the towered status and full-time attendance schedule, makes the airport a workable stop for mixed general aviation and business jet traffic in the region.
How does business aviation traffic at KMBS vary by month?
Business aviation traffic at KMBS is concentrated in the warmer months, with September posting the highest monthly count at 323 operations and July close behind at 316. The slowest months are February at 204 operations and January at 226. This pattern reflects a clear seasonal swing rather than flat year-round demand. Dispatchers planning peak-season trips into MBS International Airport should anticipate busier ramp and tower conditions during the summer and early fall period.
What airfield lighting is available at MBS International Airport when the tower is closed?
When the air traffic control tower at KMBS is closed, pilots activate lighting themselves over CTAF. This includes the MALSR approach lighting system for runways 05 and 23, and REIL lighting for runways 14 and 32. High-intensity runway lighting is available on both runway 05/23 and 14/32. PAPI visual glide indicators on runways 14, 23, and 32 operate continuously and are not pilot-controlled.