Henry Post Army Air Field
Daylight today(Jul 16, 2026, local time)
About 14h 14m of daylight. Civil twilight (dawn/dusk) approximates the FAA definition of night for logging and currency. Times are computed and approximate — verify with official sources.
About Henry Post Army Air Field
Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States. This military airport is owned by United States Army. Established as Post Field in 1917, it was one of thirty-two Air Service training camps established after the United States entry into World War I in April 1917.
Summary from Wikipedia, photo via Wikimedia Commons, licensed under CC BY-SA.
Live weather
KFSILive departures & arrivals
Flight data by AeroDataBox. Times are estimates — not for navigation; confirm with the airline.
Where you can fly from here
Current scheduled routes & daily frequency by AeroDataBox. Approximate — confirm bookable schedules with the airline.
Map
Runway centrelines, navaids and overlapping airspace. Tiles © OpenStreetMap contributors. Reference only — not for navigation.
Runways (1)
| Runway | Length | Width | Surface | Lighting | Status |
|---|---|---|---|---|---|
| 18 / 36 | 5,002 ft / 1,525 m | 150 ft | Con | Lighted | Open |
Radio frequencies (8)
| Type | Description | Frequency |
|---|---|---|
| A/D | FORT SILL APP/DEP | 118.600 MHz |
| ATIS | ATIS | 135.425 MHz |
| CLD | CLNC DEL | 121.700 MHz |
| GND | POST GND | 121.700 MHz |
| MISC | DUNCAN SCTR | 118.600 MHz |
| PMSV | PMSV METRO | 37.520 MHz |
| PTD | PTD | 123.050 MHz |
| TWR | POST TWR | 124.950 MHz |
Navaids(3)
Instrument procedures & charts
Instrument approaches (4)
Takeoff & alternate minimums (2)
Charts published by the FAA (public domain) and updated each 28-day cycle. Always fly the current, official chart. Full charts page.
Airspace in this area(4)
| Name | Class | Type | Floor | Ceiling |
|---|---|---|---|---|
| SHEPPARD 1 NORM MON-FRI SR-1HR-SS+1HR & BY NOTAM | Special use | Danger | 8000 ft MSL | 17999 ft MSL |
| R5601H BY NOTAM | Special use | Restricted | GND | FL400 |
| R5601B CONT | Special use | Restricted | GND | 40000 ft MSL |
| R5602A BY NOTAM | Special use | Restricted | 40000 ft MSL | 60000 ft MSL |
Approximate bounding-box match from OpenAIP · all United States airspace. Reference only — consult official charts for exact boundaries and status.
Tall obstacles nearby
| Obstacle | Height AGL | Top (MSL) | Lit |
|---|---|---|---|
| Obstacle | 246 ft | 1,348 ft | — |
| Obstacle | — | 1,453 ft | — |
| Obstacle | — | 1,512 ft | — |
| Obstacle | — | 1,522 ft | — |
| Obstacle | — | 1,493 ft | — |
| Obstacle | — | 1,506 ft | — |
| Obstacle | — | 1,467 ft | — |
| Obstacle | — | 1,467 ft | — |
Tallest obstacles within ~10 nm. Data via OpenAIP. Reference only — consult official charts.
Nearby airports
Great-circle distance and true bearing from Henry Post Army Air Field.
Frequently asked questions
What is the ICAO code for Henry Post Army Air Field?
The ICAO code for Henry Post Army Air Field is KFSI, and its IATA code is FSI.
Where is Henry Post Army Air Field located?
Henry Post Army Air Field is medium airport located in Fort Sill, United States, at an elevation of 1,189 ft (362 m).
How many runways does Henry Post Army Air Field have?
Henry Post Army Air Field has 1 runway, the longest being 5,002 ft / 1,525 m.
What time zone is Henry Post Army Air Field in?
Henry Post Army Air Field is in the America/Chicago time zone (UTC-05:00).
What is the magnetic variation at Henry Post Army Air Field?
The magnetic variation (declination) at Henry Post Army Air Field is approximately 3.5° E, per the World Magnetic Model. Variation changes slowly over time — always use the current value charted for navigation.
What airports are near Henry Post Army Air Field?
The nearest airport to Henry Post Army Air Field is Lawton Fort Sill Regional Airport (LAW), about 5 nm to the s, followed by Neuwirth Airstrip and Frisco Ridge Airfield.
Is the information on this page suitable for flight planning?
No. Henry Post Army Air Field data here is for reference and training only — not for navigation. Always consult official sources and current charts before any flight.