Southwest Minnesota Regional Marshall / Ryan Field (KMML), Minnesota
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Southwest Minnesota Regional / Marshall Ryan Field, identified by the code KMML, serves the Marshall, Minnesota area as a non-towered public airport with two paved runways, the longer reaching 7,221 feet. FAA TFMSC data for 2025 credits the field with 1,276 total annual operations, of which 597 are business aviation movements. The nearest customs facility sits at KFSD, roughly 65.54 nautical miles away, since KMML does not clear customs onsite. Fuel, both 100LL and Jet A, is available on a self-service basis around the clock.
Runways
Southwest Minnesota Regional Marshall / Ryan Field has two paved runways. The longest, 12/30, is 7,221 ft long and 100 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
Southwest Minnesota Regional Marshall / Ryan Field has Jet A and 100LL available on the field. Fueling is available from 8am to 5pm, daily, and the airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Southwest Minnesota Regional Marshall / Ryan Field does not clear customs. The nearest port of entry is Joe Foss Field (KFSD), 66 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Southwest Minnesota Regional Marshall / Ryan Field recorded 597 business aviation movements in 2025. Traffic peaks in May. Business aviation traffic at KMML is concentrated with a notable peak in May, alongside secondary rises in August and December.
Business jet movements, FAA TFMSC count. Peak month May, 79 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Southwest Minnesota Regional Marshall / Ryan Field averages 7.1 days above 90°F in July, 30.7 freeze days in January and 3.3 snow days in February. July is the warmest month, with average highs of 84.7°F, and January the coldest, at 24.5°F.
Weather station is on the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Southwest Minnesota Regional Marshall / Ryan Field has published operating constraints in two categories: runway notes and other notes.
Pilot-activated lighting on CTAF includes MALSR on runway 12, MALSF on runway 30, REIL on runways 02 and 20, PAPI on runways 12, 30, 02, and 20, high intensity runway lighting on runway 12/30, and medium intensity runway lighting on runway 02/20.
A ground communication outlet is available on frequency 121.725 through Minneapolis ARTCC and flight services.
Fuel is available 24 hours a day on a self-service basis via credit card.
For clearance delivery, if unable to contact on the flight service station frequency, contact Minneapolis ARTCC.
Source: FAA Chart Supplement.
Nearby airfields
Southwest Minnesota Regional Marshall / Ryan Field has five airfields within 44 NM. The closest is Granite Falls Municipal / Lenzen-Roe-Fagen Memorial Field (KGDB), 21.40 NM northeast.
Source: Skystar calculation from official coordinates.
Skystar at KMML
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 KMML.
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 is the longest runway at KMML?
KMML, Southwest Minnesota Regional / Marshall Ryan Field, has two paved runways. Runway 12/30 is the longer of the pair at 7,221 feet with a width of 100 feet and an asphalt surface. Runway 02/20 measures 3,999 feet long and 75 feet wide, also asphalt. The longer runway supports the business turbine traffic that makes up most of the field's annual operations. Both runways are paved, giving dispatchers a choice depending on wind and aircraft performance needs.
Is fuel available around the clock at KMML?
Fuel at Southwest Minnesota Regional / Marshall Ryan Field is available on a self-service basis at all hours, accessed by credit card. Both 100LL and Jet A are listed among the field's fuel types. This self-service arrangement means crews do not need to coordinate with attendants outside the posted attendance schedule to fuel an aircraft. The attendance schedule for other airport services runs all days Monday through Thursday from 0800 to 1700. Dispatchers planning off-hours stops at KMML can rely on the self-serve fuel setup independent of that schedule.
Does KMML have customs clearance on site?
Southwest Minnesota Regional / Marshall Ryan Field does not have onsite customs service. The nearest customs facility is at KFSD, located approximately 65.54 nautical miles away. Crews arriving from outside the United States and needing to clear customs must route through KFSD or another designated port rather than clearing directly at KML. Any cross-border traffic figures associated with KMML reflect FAA-tracked flights near the US-Canada or US-Mexico border context rather than onsite clearance capability, so planning ahead for the KFSD leg is necessary.
What lighting is available at KMML for night operations?
KMML, Southwest Minnesota Regional / Marshall Ryan Field, offers a range of pilot-activated lighting on CTAF. Runway 12 has MALSR approach lighting, while Runway 30 has MALSF. Runways 02 and 20 are each equipped with REIL, and PAPI is available on all four runway ends: 12, 30, 02, and 20. High intensity runway lighting (HIRL) serves runway 12/30, and medium intensity runway lighting (MIRL) serves runway 02/20. Since the field is non-towered, pilots activate this lighting themselves via the common traffic advisory frequency.
When does business aviation traffic peak at KMML?
Business aviation traffic at Southwest Minnesota Regional / Marshall Ryan Field is concentrated in specific months rather than spread evenly across the year. May sees the highest count at 79 operations, followed by August at 63 and December at 60. Lower months include November at 35 and March at 37. Out of 1,276 total annual operations recorded for 2025 by FAA TFMSC, 597 are attributed to business aviation. Dispatchers scheduling flights around these higher-traffic months at KMML may want to plan for busier ramp conditions.