Southwest Wyoming Regional (KRKS), Wyoming
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Southwest Wyoming Regional Airport (KRKS) serves Rock Springs, Wyoming, from a high-elevation field at 6,765 feet, roughly 197 nautical miles from the nearest major metro area. The airport is non-towered and operates on a published attendance schedule, with both piston and jet fuel available for business aviation traffic that made up more than half of the field's 2025 operations according to FAA TFMSC data.
Runways
Southwest Wyoming Regional has two paved runways. The longest, 09/27, is 10,002 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
Southwest Wyoming Regional has Jet A1+ and 100LL available on the field. Fueling is available from 4am to 10pm, daily, and the airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Southwest Wyoming Regional does not clear customs. The nearest port of entry is Casper / Natrona County International (KCPR), 140 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Southwest Wyoming Regional recorded 2,461 business aviation movements in 2025. Traffic peaks in January. Business aviation traffic at KRKS is concentrated in the winter months, peaking in January and February before tapering through the summer.
Business jet movements, FAA TFMSC count. Peak month January, 296 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Southwest Wyoming Regional averages 6.6 days above 90°F in July, 30.8 freeze days in January and 2.6 snow days in December. July is the warmest month, with average highs of 84.1°F, and January the coldest, at 29.5°F.
Weather station is on the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Southwest Wyoming Regional has published operating constraints in three categories: runway notes, pavement strength and other notes.
Pilot-activated on CTAF: MALSR on runway 27, ODALS on runway 09, REIL on runways 03 and 21, and HIRL on runway 09/27 plus taxiway lighting. PAPI on runways 09, 27, 03, and 21 operate continuously.
PCR VALUE: 112/F/D/X/T
PCR VALUE: 1557/F/A/X/T
For clearance delivery, if unable to contact on the FSS frequency, contact Salt Lake Air Route Traffic Control Center.
Source: FAA Chart Supplement.
Alternates
Southwest Wyoming Regional has two alternates within 46 NM. The nearest alternate is Dutch John, 43.19 NM south.
Source: Skystar calculation from official coordinates.
Skystar at KRKS
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 KRKS.
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 length is available at KRKS?
Southwest Wyoming Regional Airport (KRKS) offers a primary runway, 09/27, that measures 10,002 feet long and 150 feet wide with an asphalt surface. A secondary runway, 03/21, adds 5,228 feet of length at 75 feet wide, also asphalt. The long parallel runway supports large business jets and other heavy aircraft operating in and out of Rock Springs. Field elevation at KRKS is 6,765 feet, a factor dispatchers should weigh alongside runway length for performance planning at this density altitude.
Is fuel available at Southwest Wyoming Regional Airport?
Southwest Wyoming Regional Airport (KRKS) carries both 100LL and Jet A fuel types, listed in the data as A1+. The field operates on a published attendance schedule of 0400 to 2200 local, every day of the week. Given the airport's elevation of 6,765 feet, crews should factor density altitude into fuel and weight planning regardless of grade uplifted. No confirmation of self-service versus full-service fueling is included in the airport's operational data.
Does KRKS have on-site customs clearance?
Southwest Wyoming Regional Airport (KRKS) does not have customs clearance on site. The nearest customs facility is at KCPR, located approximately 139.88 nautical miles away. Flights requiring customs processing near Rock Springs must plan a stop at that airport instead. There is no towered air traffic control at KRKS, so international arrivals need to coordinate customs routing well ahead of any border-crossing flight plan.
What lighting is available at Rock Springs Airport for night or low-visibility operations?
Rock Springs Airport, identified as KRKS, provides several pilot-activated lighting systems on CTAF. Runway 27 has MALSR, runway 09 has ODALS, and runways 03 and 21 each have REIL. High-intensity runway lights cover runway 09/27, along with taxiway lighting, and all four runway ends have PAPI that operate continuously rather than on pilot activation. This mix supports approaches and departures during hours of darkness at this non-towered field. Pilots unable to reach the local FSS frequency for clearance delivery are directed to contact Salt Lake ARTCC instead.
When is business aviation traffic busiest at KRKS?
Business aviation traffic at Southwest Wyoming Regional Airport (KRKS) is concentrated in the winter months, with January posting 296 operations and February 260, the two highest months in the 2025 FAA TFMSC data. Traffic tapers through spring and summer, with August recording the lowest monthly count at 163 operations. November also runs light, at 151 operations. Total annual business aviation operations at KRKS reached 2,461 out of 4,899 total operations for the year. Dispatchers scheduling winter trips into Rock Springs should anticipate higher relative volume during those cold-weather months.