Johnson County Airport (KBYG), Wyoming
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Johnson County Airport (KBYG) serves Buffalo, Wyoming, with a single paved runway at 4,970 feet elevation, positioning it among general aviation fields supporting business aircraft in the northern Bighorn Basin region. The field is non-towered and operates with attended hours on weekdays and Saturday mornings, with self-service fuel available outside those windows. There is no customs facility on site; the nearest customs airport is KCPR, roughly 89 nautical miles away.
Runways
Johnson County Airport has one paved runway, 13/31, 6,143 ft long and 75 ft wide, with an asphalt surface.
Runway geometry from published threshold coordinates. Not for navigation.
Source: FAA Form 5010.
Fuel and airfield services
Johnson County Airport has Jet A and 100LL available on the field. The airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Johnson County Airport does not clear customs. The nearest port of entry is Casper / Natrona County International (KCPR), 89 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Johnson County Airport recorded 375 business aviation movements in 2025. Traffic peaks in July. Business aviation traffic at KBYG concentrates in the summer months, with July recording the highest volume of the year.
Business jet movements, FAA TFMSC count. Peak month July, 66 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Johnson County Airport averages 11.2 days above 90°F in July and 29.6 freeze days in January. July is the warmest month, with average highs of 84.8°F, and December the coldest, at 36.8°F.
Weather station is on the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Johnson County Airport has published operating constraints in two categories: runway notes and other notes.
Terrain drops off on both sides of Runway 13/31.
Pilot-controlled lighting activates the MIRL for Runway 13/31, the PAPI for Runways 13 and 31, and the REIL for Runway 31, on frequency 122.8.
Runway 31 has an additional 250-foot drop, with a 170-foot decline on the left side within the first 417 feet.
Fuel is available 24 hours a day via self-service with a credit card.
Jet A fuel is available by truck delivery only, and is provided for Jet A after hours.
For clearance delivery, contact Salt Lake Center.
Source: FAA Chart Supplement.
Nearby airfields
Johnson County Airport has one airfield within 26 NM. The closest is Sheridan County (KSHR), 25.79 NM northwest.
Part of the Eastern Montana and Wyoming area.
Source: Skystar calculation from official coordinates.
Skystar at KBYG
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.
$1,200.00 catering order at KBYG.
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 is available at KBYG?
KBYG has a single paved runway, designated 13/31, measuring 6,143 feet long and 75 feet wide with an asphalt surface. Terrain drops off on both sides of this runway, and Runway 31 has an additional drop of 250 feet with a 170-foot left-side decline within the first 417 feet. Pilots should account for these terrain features during approach and departure planning at Johnson County Airport.
Is fuel available at Johnson County Airport (KBYG)?
Johnson County Airport offers both 100LL and Jet A fuel. The 100LL is available 24 hours a day through self-service with a credit card. Jet A is delivered only by truck and specifically after hours, so dispatchers should plan Jet A uplift with that delivery method in mind rather than expecting a standard fueling stand.
Does KBYG have customs clearance on site?
KBYG does not have an onsite customs facility. The nearest customs airport is KCPR, located approximately 89 nautical miles away. Operators requiring customs clearance near Buffalo, Wyoming should plan to route through KCPR rather than expecting clearance services at Johnson County Airport itself.
How busy is Johnson County Airport in terms of business aviation traffic?
Johnson County Airport recorded 375 business aviation operations in 2025 according to FAA TFMSC data, out of 421 total annual operations. Traffic is concentrated in the summer, with July seeing 66 business aviation operations, the highest monthly count. Winter months such as April and December see notably lower volumes, reflecting the seasonal pattern typical of this Wyoming field.