Airport map and runways

Henry Post Army Air Field (FSI)

Fort Sill, United States · ICAO KFSI · IATA FSI

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Map: OpenStreetMap contributors, captured 20 Oct 2026. North is up and the drawing is simplified. Each runway is labelled at its ends.

Location: Fort Sill, United States
ICAO code: KFSI
IATA code: FSI
Elevation: 1,189 ft
Longest runway: 5,002 ft (18/36)
Runways: 1
Size class: Medium
Position: 34.6498, -98.4022

About KFSI

Henry Post Army Air Field (FSI) is a medium airport in Fort Sill, United States, with the ICAO code KFSI. It has one runway, 18/36, 5,002 ft long and 150 ft wide, with a hard surface. The OpenStreetMap layout shows 21 taxiway segments and 2 aprons. The route snapshot of 14 Oct 2026 has no scheduled routes for KFSI.

Runways

Runways, longest first
Runway	Length	Width	Surface	Lights
18 / 36	5,002 ft	150 ft	Hard	Lit

Runway idents and sizes from OurAirports. The runway headings in the source do not always match the idents, so only the idents are shown.

Scheduled routes

The route snapshot of 14 Oct 2026 has no scheduled routes for this airport.

Nearby airports with maps

The closest airports that have a map and a page here.

Lawton Fort Sill Regional Airport (LAW) 9 km (6 mi)
Halliburton Field (DUC) 45 km (28 mi)
Frederick Regional Airport (FDR) 63 km (39 mi)
Chickasha Municipal Airport (CHK) 64 km (40 mi)
Hobart Regional Airport (HBR) 70 km (44 mi)
Wichita Falls Municipal Airport / Sheppard Air Force Base (SPS) 74 km (46 mi)
Altus Air Force Base (LTS) 79 km (49 mi)
Altus Quartz Mountain Regional Airport (AXS) 86 km (53 mi)

Land at FSI in Short Final

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Sources: airport and runway data from OurAirports (public domain). Map data from OpenStreetMap contributors (ODbL). Routes from Virtual Radar Server standing data (CC0), snapshot of 14 Oct 2026.