KBYG · Johnson County Airport

BUFFALO, WYOMING · SMALL AIRPORT

4,968

Elevation ft

Runway

6,143

Longest ft · 13/31

44.38N

106.72W

Johnson County Airport serves Buffalo, Wyoming at 4,968 ft elevation with its longest runway, 13/31, at 6,143 by 75 ft. The figures below are computed from FAA NASR runway data (via OurAirports) and the same rules of thumb JetDesk uses on the airport page in the app; the POH and current NOTAMs are the authority.

Open KBYG in JetDesk: live METAR, TAF, winds and runway verdict →

01Runways

Runway	Length × width	Surface	Lighting
13/31	6,143 × 75 ft	asphalt	lit

02Density altitude and turboprop runway margins

Standard temperature at 4,968 ft is about 5°C. Every 1,000 ft of density altitude adds roughly 8 percent to a turboprop's takeoff distance and 5 percent to its landing distance. The table uses Piper Meridian book numbers (2,438 ft takeoff and 2,110 ft landing over a 50 ft obstacle at sea level, ISA, max weight) as a reference airplane; heavier turboprops and light jets scale the same way from their own POH figures.

Conditions	Density altitude	Takeoff est.	Landing est.	Landing × 1.5
Standard day (ISA, 5°C)	4,968 ft	3,407 ft	2,634 ft	3,951 ft
Warm day (ISA +10)	6,168 ft	3,641 ft	2,761 ft	4,141 ft
Hot day (ISA +20)	7,368 ft	3,875 ft	2,887 ft	4,331 ft
35°C afternoon	8,560 ft	4,108 ft	3,013 ft	4,520 ft

Planning aid only. Even on a 35°C afternoon the longest runway (13/31, 6,143 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (4,520 ft needed). The percentages are a generic rule of thumb applied to one reference airplane, not certified performance data for any specific aircraft, and the runway size categories describe the runway, not your airplane's suitability. Verify with the approved flight manual before every flight.

03Nearby fields with 5,000 ft or more

Useful as alternates, as fuel stops when the price at KBYG is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KSHR Sheridan County Airport	26 nm NW	8,301 ft
KGCC Northeast Wyoming Regional Airport	51 nm E	7,501 ft
KWRL Worland Municipal Airport	59 nm SW	7,000 ft
KGEY South Big Horn County Airport	59 nm W	7,003 ft
KU68 North Big Horn County Airport	80 nm NW	5,199 ft

04Jet A prices and FBOs at KBYG

No public API publishes FBO fuel prices, so JetDesk does not guess. Pilots and crews log the price they actually paid at KBYG, the app flags a price stale after two weeks, and the route finder ranks every field within a corridor of your route by net savings after the cost of the extra cycle. Log a price at KBYG or read what a fuel stop actually saves.

All Wyoming airports · Airport directory · Open JetDesk