Airport Code

FSI

Henry Post Army Air Field (Fort Sill)

ICAO: KFSI

About Henry Post Army Air Field (Fort Sill) Airport

Located in Fort Sill, United States, Henry Post Army Air Field (Fort Sill) operates under the IATA designation FSI and ICAO identifier KFSI. The airport is an important hub for passengers arriving in the Fort Sill metropolitan area.

The airport operates in the America/Chicago timezone. Its geographical coordinates are latitude 34.6498 and longitude -98.4022, making it accessible from surrounding areas. The nearest airports include LAW (Lawton, 9.2 km), DUC (Duncan, 45.1 km), HBR (Hobart, 70.4 km), SPS (Wichita Falls, 74 km), LTS (Altus, 79.1 km).

Planning a trip through FSI? Here you will find live weather data, time zone comparisons, a distance calculator, and links to real-time flight information — everything you need in one place.

Local Time

America/Chicago

Location

Fort Sill

United States

Coordinates

34.6498, -98.4022

🕐 Time Zone Comparison

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Airport Location

Frequently Asked Questions — FSI

What city is FSI airport in?

Henry Post Army Air Field (Fort Sill) (FSI) is located in Fort Sill, United States.

What is the ICAO code for Henry Post Army Air Field (Fort Sill)?

The ICAO code for Henry Post Army Air Field (Fort Sill) is KFSI. This code is used by air traffic control and airline operations worldwide.

Where is FSI located?

FSI is located at latitude 34.64979935 and longitude -98.40219879 in Fort Sill, United States.

What timezone is FSI airport in?

Henry Post Army Air Field (Fort Sill) operates in the America/Chicago timezone.

What does the airport code FSI stand for?

The IATA code FSI is the three-letter identifier assigned to Henry Post Army Air Field (Fort Sill) by the International Air Transport Association. You will find this code on your boarding pass, luggage tags, and flight booking systems.

What is the difference between FSI and KFSI?

FSI is the IATA code (3 letters, used on tickets and baggage) and KFSI is the ICAO code (4 letters, used by pilots and air traffic control) for Henry Post Army Air Field (Fort Sill).

What is the weather like at FSI airport?

You can check the current weather conditions at FSI airport at the top of this page. We provide real-time temperature data powered by Open-Meteo.

What airports are near FSI?

The closest airports to FSI are: LAW (Lawton, 9.2 km), DUC (Duncan, 45.1 km), HBR (Hobart, 70.4 km), SPS (Wichita Falls, 74 km), LTS (Altus, 79.1 km).