# Henry Post Army Air Field (FSI)

> Fort Sill, US · IATA: FSI · ICAO: KFSI · Medium Airport

## Quick Facts

| Property | Value |
|---|---|
| IATA | `FSI` |
| ICAO | `KFSI` |
| City | Fort Sill |
| Country | US |
| Type | Medium Airport |
| Elevation | 362 m |
| Cargo | ❌ |
| GPS | 34.64980, -98.40220 |

## Description

Henry Post Army Airfield (IATA: FSI, ICAO: KFSI) at Fort Sill, Oklahoma, is a military-only field with no commercial cargo handling, a single 1,525-metre (5,002 ft) runway 17/35 that can take most service aircraft including the C-17 Globemaster. Established as Post Field in 1917, it is the oldest continuously operating U.S. Army airfield and the birthplace of Army combat aviation. No Army aviation units are permanently assigned; the main users are U.S. Air Force training aircraft from Sheppard AFB at Wichita Falls and Dyess AFB at Abilene, alongside joint warfighting exercises. There is no freight terminal and no customs post, and military resupply moves through defence channels. Civilian shipments for Lawton and Comanche County are delivered via the adjacent Lawton-Fort Sill Regional Airport (IATA: LAW), with its regional link to Dallas/Fort Worth, while larger air freight volumes route through Will Rogers World Airport in Oklahoma City (IATA: OKC), roughly 140 kilometres northeast on Interstate 44.

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*Freight Academy — Airport Profile: [https://www.freight-academy.com/en/information/airports/henry-post-army-air-field-airport-fsi](https://www.freight-academy.com/en/information/airports/henry-post-army-air-field-airport-fsi)*

*Markdown mirror: [https://www.freight-academy.com/api/md/airports/en/henry-post-army-air-field-airport-fsi](https://www.freight-academy.com/api/md/airports/en/henry-post-army-air-field-airport-fsi)*

*LLM-Summary (JSON): https://www.freight-academy.com/api/v1/airports/henry-post-army-air-field-airport-fsi/llm-summary*