Circle Town County Airport (4U6)

Current Conditions at K4U6

Circle Town County Airport, Circle, MT

Airport Overview

The Circle, MT region is served by Circle Town County Airport (K4U6), a public-use airport at 2,426 feet elevation. The field maintains 2 runway(s), with the longest measuring 4,100 feet on N/A surface. Operators and private travelers use Circle Town County Airport for its direct ramp access and minimal ground delays. For official FAA airport data, visit the FAA Airport Data portal or AirNav K4U6.

Private Aviation Briefing

Private aviation at Circle Town County Airport (K4U6) connects Circle to destinations across the country and internationally. The airport sits at 2,426 ft MSL with 4100-foot primary runway. This briefing covers what matters for your mission.

U.S. General Aviation Context

Circle Town County Airport is part of the U.S. National Airspace System, regulated by the FAA. As a MT facility, the airport contributes to the regional transportation network connecting Circle to the broader aviation system. FAA Part 135 charter operators serve this airport, and The Jet Finder can source aircraft positioned near K4U6 for on-demand charter.

Runway Capability

At 4100 feet, Circle Town County Airport serves light jets and turboprops. The Citation CJ series, Phenom 100, HondaJet, and King Air family operate within this runway capability. Midsize jets require careful performance analysis based on temperature and aircraft weight. Pilots should reference aircraft-specific takeoff and landing distance charts for K4U6's runway length and 2,426 ft MSL elevation.

Charter Considerations

Ground transportation at Circle Town County Airport is a factor in total travel time. Private aviation eliminates the commercial terminal experience, but the drive from K4U6 to your final destination determines the true door-to-door advantage. FBOs at most airports offer car service coordination, rental car delivery to the ramp, and concierge ground transportation for arriving passengers.

What to Know Before You Fly

Fuel pricing varies significantly between airports and FBOs. Jet-A at Circle Town County Airport may cost $5.50 to $10.00 per gallon depending on the FBO. On shorter flights, fuel cost is a minor component. On longer legs, the price difference between FBOs adds up. The Jet Finder factors fuel cost into charter quotes to ensure accurate pricing from K4U6.

Safety & Planning

Flight planning from Circle Town County Airport accounts for current NOTAMs, TFRs, and airspace restrictions. Pilots operating from K4U6 check published notices before every departure. Temporary flight restrictions near stadiums, presidential movements, and military operations can affect routing and timing. The Jet Finder monitors these factors and communicates schedule impacts proactively.

Airport Selection Strategy

Based aircraft availability at Circle Town County Airport directly impacts charter pricing. Airports with more locally based jets generate lower positioning costs. If K4U6 has limited based aircraft, the charter operator repositions from the nearest base, adding 30 to 60 minutes of flight time at the hourly rate. The Jet Finder identifies the closest available aircraft to minimize this cost.

Seasonal Factors

Convective weather season (May through September) impacts afternoon scheduling reliability at Circle Town County Airport. Thunderstorm activity typically builds after 2:00 PM local time, potentially delaying departures from K4U6. Morning flights on this corridor routinely depart on schedule. The Jet Finder recommends morning departures when schedule certainty matters.

Location & Address

Circle Town County Airport occupies coordinates 47.4186° N, -105.5620° W at 2,426 feet above sea level. FBO-arranged car service or rideshare connects passengers from Circle Town County Airport to Circle and surrounding areas efficiently.

Runways & Facilities

Circle Town County Airport's 4,100-foot runway accommodates turboprops, very light jets, and most light jet categories (Citation CJ series, Phenom 100/300, Premier I). Some midsize jets can operate under light-load conditions. Pilots should calculate performance based on temperature, elevation, and aircraft weight.

FBOs & Ground Services

FBO services at K4U6 cover the standard general aviation needs: fuel, parking, and ground handling. Service levels vary by facility size and staffing. Pilots and passengers should coordinate arrival requirements in advance, particularly for after-hours operations at Circle Town County Airport.

Charter a Jet from Circle Town County Airport

Private charter from K4U6 starts with a single call. The Jet Finder sources aircraft from a nationwide network of FAA Part 135 operators, matching runway capabilities at K4U6 with the right aircraft for your route.

Fly Private from K4U6

The Jet Finder coordinates charter flights from Circle Town County Airport. Tell us your destination, dates, and passenger count. We source aircraft from FAA Part 135 operators matched to K4U6's runway and facilities.

Airport Specifications

Airport Identity
Airport Name	Circle Town County Airport
ICAO Code	K4U6
IATA Code	4U6
FAA Identifier	4U6
Address	Circle, MT
Elevation	2,426 ft MSL
Coordinates	47.4186° N, 105.5620° W
FAA Data	AirNav 4U6

Operations & Facilities
Runways	12/30: 4,100 ft (ASPH-G) 03/21: 2,280 ft (GRS)
FBOs	Airport Services
Customs	Not available
Fuel	Contact airport for availability
Hours	Contact airport for hours
Approaches	Contact airport for approach information
Tower / Freq	See Airport/Facility Directory

Regional Aviation Context

Montana's vast distances and sparse population make aviation practical transportation, not a luxury. Mountain flying conditions, high-density altitude, and unpredictable weather are standard.

Operational Considerations

Circle Town County Airport's 2,426-foot field elevation keeps density altitude effects manageable. Even on warm days, density altitude here tops out around 4,226 feet — within normal performance parameters for most aircraft. The 4,100-foot runway provides approximately 3,802 feet of effective sea-level performance.

Four distinct seasons define operations at Circle Town County Airport. Winter brings icing potential, snow-covered surfaces, and reduced daylight hours. De-icing capability is valuable from November through March. Spring and fall transitions produce the most variable weather — warm fronts, cold fronts, and rapid ceiling changes. Summer typically delivers the best VFR conditions but introduces convective risk during afternoon heating. Preflight weather assessment should include both surface observations and area forecasts at this latitude.

Two runways at Circle Town County Airport provide crosswind flexibility. When the primary runway's crosswind component exceeds aircraft limitations, the secondary runway typically offers a more favorable alignment. Runway selection should account for wind, obstacle clearance, and any published procedures.

Nearby Airports

Airports within 150 nautical miles of Circle Town County Airport. Useful for alternate planning, repositioning, or comparing FBO options.

Dawson Community Airport

KGDV · 35 NM from K4U6

Terry Airport

K8U6 · 40 NM from K4U6

L M Clayton Airport

KOLF · 41 NM from K4U6

Poplar Muni Airport

KPO1 · 46 NM from K4U6

Frequently Asked Questions

The ICAO identifier for Circle Town County Airport is K4U6. The FAA designator is also K4U6. Use this code when filing flight plans and referencing the airport in official communications.

Circle Town County Airport (K4U6) sits at 47.4186° N, 105.5620° W, near Circle, MT. At 2,426 feet MSL, the airport provides general aviation access to the surrounding region.

Runway 12/30 is the main strip at Circle Town County Airport, providing 4,100 feet of ASPH-G runway. The airport has 2 total runway(s).

K4U6 supports private jet operations. The 4,100-foot runway accommodates light jets and turboprops in most conditions. Pilots of larger aircraft should calculate required distances based on weight, temperature, and elevation before committing.

Ground services at K4U6 are provided by the on-field operator. Available services may include aircraft parking, tiedowns, fuel, and basic passenger amenities. Confirm availability before arrival.

Circle Town County Airport sits at 2,426 feet MSL. Performance-conscious pilots should compute density altitude before each operation, particularly when temperatures exceed standard.

Instrument approach availability at Circle Town County Airport depends on the facility's current FAA designation. Check the Terminal Procedures Publication or ForeFlight/Garmin Pilot for published approaches at K4U6.

To arrange a charter from K4U6, reach The Jet Finder at thejetfinder.com/contact.html. Share your routing, dates, and party size. We coordinate everything from aircraft selection to ground transportation.

Circle Town County Airport's 4,100-foot primary runway accommodates most general aviation traffic. Turboprops and light jets are the largest categories that operate routinely. Jet operations beyond light category should be verified against performance requirements.

Check the Airport/Facility Directory for K4U6's tower status. Circle Town County Airport may be towered, non-towered, or part-time tower. Appropriate communication procedures depend on tower operating hours.

Fuel types and pricing at Circle Town County Airport are subject to change. Contact the airport or its FBO for current Jet-A and 100LL availability. AirNav lists recent fuel prices reported by pilots.

Flying internationally from Circle Town County Airport? CBP clearance is mandatory. Whether K4U6 has on-field customs depends on the facility. Nearby airports with customs capability may be a better option — contact The Jet Finder for routing advice.

Aviation weather for Circle Town County Airport is reported under identifier K4U6. Monitor METAR, TAF, and PIREP data through official sources. MT's climate affects ceiling, visibility, and wind conditions at the field.

Circle Town County Airport serves the Circle, MT area. Actual driving distance to city center depends on your specific destination. FBOs at K4U6 can typically arrange ground transportation or provide directions.

Parking options at K4U6 include ramp tiedowns and potentially hangar space. Availability and pricing are set by the on-field operator at Circle Town County Airport. Pre-arrival coordination is recommended for overnight stays.

The Jet Finder provides personalized charter quotes from Circle Town County Airport. Submit your trip details at thejetfinder.com/contact.html — departure date, destination, party size. No obligation. We match K4U6's runway to the right aircraft.

Ready to Fly from 4U6?

Experience the difference of private aviation at Circle Town County Airport.

Circle Town County Airport (K4U6)