Lewistown Municipal (KLWT), Montana
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Lewistown Municipal Airport (KLWT) sits at 4,170 feet elevation in central Montana, roughly 125 nautical miles from the nearest metro area. The field is non-towered and operates on a staffed schedule of Monday through Friday, 0800 to 1700 local time. Business aviation accounts for the large majority of the airport's FAA TFMSC-reported traffic, and three paved runways give operators a choice of surfaces and orientations depending on conditions and aircraft type.
Runways
Lewistown Municipal has three paved runways. The longest, 08/26, is 6,100 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
Lewistown Municipal has Jet A, 100LL and 100 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
Lewistown Municipal does not clear customs. The nearest port of entry is Great Falls International (KGTF), 82 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Lewistown Municipal recorded 1,210 business aviation movements in 2025. Traffic peaks in October. Business aviation traffic at KLWT concentrates in the fall, with October showing the highest monthly count and January the lowest, according to FAA TFMSC data.
Business jet movements, FAA TFMSC count. Peak month October, 145 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Lewistown Municipal averages 5.7 days above 90°F in July and 29.3 freeze days in December. July is the warmest month, with average highs of 81.6°F, and January the coldest, at 34.4°F.
Weather station is on the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Lewistown Municipal has published operating constraints in three categories: runway notes, environmental and other notes.
REIL is activated for runways 08 and 26. PAPI is available for runway 08, and VASI for runway 26. MIRL is activated for runways 08/26 and 13/31. Activation is via CTAF.
Runway 03/21 markings are faded.
Runway 03/21 asphalt shows spalling.
Runway 03/21 is for day use only.
Runway 03/21 is not maintained in winter. Runway 13/31 is plowed as needed.
Birds are present on and in the vicinity of the airport.
Loose gravel surface.
All taxiways have reflectors, except taxiways C, E, and half of taxiway A, which are lighted instead.
Airport surface conditions are not monitored between 1700 and 0500.
For clearance delivery, if unable to contact on the FSS frequency, contact Salt Lake ARTCC.
Source: FAA Chart Supplement.
Nearby airfields
Lewistown Municipal has three airfields within 40 NM. The closest is N Bar Ranch, 25.15 NM southeast.
Source: Skystar calculation from official coordinates.
Skystar at KLWT
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 KLWT.
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 runway options does KLWT offer for larger business jets?
Lewistown Municipal Airport (KLWT) provides three paved runways, the longest being 08/26 at 6,100 feet with a 100-foot width. Runway 03/21 adds 5,600 feet of asphalt-gravel surface at 101 feet wide, though it carries operational restrictions. A third runway, 13/31, measures 4,102 feet with a narrower 62-foot width. Field elevation sits at 4,170 feet, a factor dispatchers should weigh alongside runway length for performance planning. The 08/26 runway is the primary option for jet traffic given its length and unrestricted status.
Are there limitations on using Runway 03/21 at KLWT?
Yes, Runway 03/21 at Lewistown Municipal Airport is restricted to day use only. It is also not maintained in winter conditions, unlike Runway 13/31, which is plowed as needed. The surface itself is asphalt-gravel and has been reported with faded markings and asphalt spalling. Pilots planning operations on this runway should account for these surface and scheduling constraints, particularly outside daylight hours or during winter months.
What fuel types are available at KLWT?
Lewistown Municipal Airport (KLWT) offers 100 octane avgas, 100LL, and Jet A fuel. The field operates on an attendance schedule of Monday through Friday, 0800 to 1700 local time. Outside these hours, fuel service availability may depend on airport staffing. Dispatchers planning flights outside the posted schedule should factor this into arrival timing at KLWT.
Where is the nearest customs clearance location for KLWT?
KLWT does not have customs facilities onsite. The nearest customs airport is KGTF, located approximately 81.80 nautical miles away. Flights requiring customs clearance in the region should plan to route through KGTF rather than Lewistown Municipal Airport directly. This distance is a relevant planning factor for any international arrival needing to clear customs before or after a stop at KLWT.
Does KLWT see seasonal variation in business aviation traffic?
Yes, Lewistown Municipal Airport (KLWT) shows notable seasonal concentration in its business aviation traffic. According to FAA TFMSC data covering 2025, monthly operations ranged from a low of 58 in January to a high of 145 in October. Traffic also picked up through September and November, with counts above 110 in each of those months. Dispatchers should expect lighter activity in the winter months and a stronger volume during the fall period.