KSPI · Abraham Lincoln Capital Airport

SPRINGFIELD, ILLINOIS · MEDIUM AIRPORT · SCHEDULED SERVICE

598

Elevation ft

Runways

8,001

Longest ft · 04/22

39.84N

89.68W

Abraham Lincoln Capital Airport serves Springfield, Illinois at 598 ft elevation with its longest runway, 04/22, at 8,001 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.

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

01Runways

Runway	Length × width	Surface	Lighting
04/22	8,001 × 150 ft	concrete	lit
13/31	7,399 × 150 ft	asphalt	lit
18/36	5,300 × 150 ft	asphalt (PEM)	lit

02Density altitude and turboprop runway margins

Standard temperature at 598 ft is about 14°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, 14°C)	598 ft	2,555 ft	2,173 ft	3,260 ft
Warm day (ISA +10)	1,798 ft	2,789 ft	2,300 ft	3,450 ft
Hot day (ISA +20)	2,998 ft	3,023 ft	2,426 ft	3,639 ft
35°C afternoon	3,142 ft	3,051 ft	2,441 ft	3,662 ft

Planning aid only. Even on a 35°C afternoon the longest runway (04/22, 8,001 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,662 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 KSPI is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KIJX Jacksonville Municipal Airport	26 nm W	5,000 ft
KDEC Decatur Airport	37 nm E	8,496 ft
KC15 Pekin Municipal Airport	39 nm N	5,000 ft
KPIA General Wayne A. Downing Peoria International Airport	49 nm N	10,104 ft
KBMI Central Illinois Regional Airport at Bloomington-Normal	52 nm NE	8,000 ft
KI63 Mount Sterling Municipal Airport	53 nm W	5,905 ft

04Jet A prices and FBOs at KSPI

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

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