South Big Horn County Airport (KGEY), Wyoming
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
South Big Horn County Airport (KGEY) serves Greybull, Wyoming with a long paved runway that stands out for a field of this traffic level, supporting business aviation movements alongside general aviation in the Big Horn Basin. The airport sits at 3,942 feet elevation and operates without a control tower or on-field customs, with the nearest customs service located at Casper (KCPR). Fuel is available on an unattended, card-access basis, positioning KGEY as a self-serve stop for operators transiting this part of north-central Wyoming.
Runways
South Big Horn County Airport has two paved runways. The longest, 16/34, is 7,003 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
South Big Horn County Airport has Jet A and 100LL available on the field. The airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
South Big Horn County Airport does not clear customs. The nearest port of entry is Casper / Natrona County International (KCPR), 120 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
South Big Horn County Airport recorded 50 business aviation movements in 2025. Traffic peaks in October. Business aviation traffic at KGEY concentrates in October, May, and January, with several months, including July, recording little to no bizav activity according to FAA TFMSC data.
Business jet movements, FAA TFMSC count. Peak month October, 11 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
South Big Horn County Airport averages 23.1 days above 90°F in July and 31.0 freeze days in January. July is the warmest month, with average highs of 91.4°F, and January the coldest, at 28.9°F.
Weather station is on the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
South Big Horn County Airport has published operating constraints in two categories: runway notes and other notes.
Runway lights (MIRL) for runway 16/34 are pilot-activated. PAPI and REIL are installed on both runway 16 and runway 34, controlled via CTAF.
Antelope have been observed on and in the vicinity of the runway.
Fuel is available 24 hours a day via credit card.
Full service fuel is available only by calling ahead or texting/calling the airport manager.
Terrain rises 1,066 feet above airport elevation, located 4 to 5 miles north and northeast of the airport.
For clearance delivery, contact Salt Lake Air Route Traffic Control Center.
Source: FAA Chart Supplement.
Nearby airfields
South Big Horn County Airport has five airfields within 50 NM. The closest is North Big Horn County, 28.25 NM northwest.
Part of the Eastern Montana and Wyoming area.
Source: Skystar calculation from official coordinates.
Skystar at KGEY
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 KGEY.
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 KGEY?
South Big Horn County Airport (KGEY) has two paved asphalt runways. Runway 16/34 is the primary strip at 7,003 feet long and 150 feet wide, while runway 08/26 measures 3,953 feet by 75 feet. Both runways are lighted, with MIRL on 16/34 activated via CTAF, plus PAPI and REIL on both ends of runway 16/34.
Is fuel available at KGEY?
Fuel is available at South Big Horn County Airport around the clock through a credit card self-service system, covering both 100LL and Jet A. Full service fueling requires calling or texting the airport manager ahead of arrival, since the field is otherwise unattended. Pilots planning full service should phone ahead rather than expecting an on-call attendant.
Is there customs clearance at KGEY?
South Big Horn County Airport (KGEY) has no on-site customs service. The nearest customs facility is at Casper-Natrona County International Airport (KCPR), located about 119.6 nautical miles away. Operators arriving from outside the United States should plan clearance through Casper or another designated port of entry before or after a stop at KGEY.
What terrain or wildlife hazards are reported near KGEY?
Pilots operating at South Big Horn County Airport should note terrain rising 1,066 feet above airport elevation located 4 to 5 miles north and northeast of the field. Antelope have also been reported on and in the vicinity of the runway, a hazard relevant to both takeoff and landing operations. These conditions warrant added visual scanning during arrival and departure at KGEY.