KJAX · Jacksonville International Airport

JACKSONVILLE, FLORIDA · LARGE AIRPORT · SCHEDULED SERVICE

Elevation ft

Runways

10,000

Longest ft · 08/26

30.49N

81.69W

Jacksonville International Airport serves Jacksonville, Florida at 30 ft elevation with its longest runway, 08/26, at 10,000 by 150 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.

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01Runways

Runway	Length × width	Surface	Lighting
08/26	10,000 × 150 ft	concrete	lit
14/32	7,701 × 150 ft	concrete	lit

02Density altitude and turboprop runway margins

Standard temperature at 30 ft is about 15°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, 15°C)	30 ft	2,444 ft	2,113 ft	3,170 ft
Warm day (ISA +10)	1,230 ft	2,678 ft	2,240 ft	3,360 ft
Hot day (ISA +20)	2,430 ft	2,912 ft	2,366 ft	3,550 ft
35°C afternoon	2,437 ft	2,913 ft	2,367 ft	3,551 ft

Planning aid only. Even on a 35°C afternoon the longest runway (08/26, 10,000 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,551 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 KJAX is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KFHB Fernandina Beach Municipal Airport	14 nm NE	5,301 ft
K4J6 St Marys Airport	17 nm NE	5,000 ft
KVQQ Cecil Airport	19 nm SW	12,504 ft

04Jet A prices and FBOs at KJAX

No public API publishes FBO fuel prices, so JetDesk does not guess. Pilots and crews log the price they actually paid at KJAX, 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 KJAX or read what a fuel stop actually saves.

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