
Robert Gray Army Airfield (IATA: GRK, ICAO: KGRK, FAA LID: GRK) is a military joint-use airport that operates alongside Killeen Regional Airport. The airport is based inside the south end of the Fort Hood Military Reservation (West Fort Hood), six nautical miles (7 mi, 11 km) southwest of the central business district of Killeen, Texas, in unincorporated Bell County. As per Federal Aviation Administration records, the airport had 232,299 passenger boardings (enplanements) in calendar year 2008, 231,500 enplanements in 2009, and 243,861 in 2010. It is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a primary commercial service airport (more than 10,000 enplanements per year).

31.067°N, 97.829°O · 309 m s. n. m. (1.015 ft)
Lengths and surfaces from the public OurAirports register; open runways only.
Tower
Ground
Clearance delivery
ATIS (automatic information)
Approach
Frequencies from the official publication: FAA NASR, AIRAC 01 OCT 2026, checked on Oct 16, 2026. They change with each amendment: not for navigation without checking the current AIP. See the official publication In MHz.
From our own logbook: 303 aircraft documented between 2006 and 2025.
Types seen here
Airlines with documented aircraft
Busiest routes from here
A count of our own aircraft profiles, year by year, from the public United States flight records: it reflects what we have documented, not the airport’s total traffic.
Other airlines with direct routes
Airlines with current passenger routes from here, according to Wikipedia route tables cross-checked from both ends (October 2026).
Photo: United States Geological Survey (USGS) · Public domain · view original
Data from OurAirports (public domain) · destinations and airlines from Wikipedia route tables (CC BY-SA, 2026), unless another source is given · profile and photo from Wikidata/Wikimedia Commons (CC0 / CC) · summary and history from Wikipedia (CC BY-SA).
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This page was last updated on October 16, 2026
APA
Vuelopedia. (2026, October 16). Killeen Regional Airport / Robert Gray Army Airfield (GRK). Retrieved October 16, 2026, from https://vuelopedia.org/en/airport/GRK
MLA
“Killeen Regional Airport / Robert Gray Army Airfield (GRK).” Vuelopedia, Fundación Poderia, 16 Oct. 2026, vuelopedia.org/en/airport/GRK. Accessed 16 Oct. 2026.
Chicago
Vuelopedia. “Killeen Regional Airport / Robert Gray Army Airfield (GRK).” Fundación Poderia. Last modified October 16, 2026. https://vuelopedia.org/en/airport/GRK.
Harvard
Vuelopedia (2026) Killeen Regional Airport / Robert Gray Army Airfield (GRK). Available at: https://vuelopedia.org/en/airport/GRK (Accessed: 16 October 2026).
BibTeX
@misc{vuelopedia_en_airport_grk,
author = {{Vuelopedia}},
title = {{Killeen Regional Airport / Robert Gray Army Airfield (GRK)}},
publisher = {Fundación Poderia},
year = {2026},
date = {2026-10-16},
url = {https://vuelopedia.org/en/airport/GRK},
howpublished = {\url{https://vuelopedia.org/en/airport/GRK}},
urldate = {2026-10-16},
note = {Accessed 2026-10-16}
}Wikipedia
{{cite web |url=https://vuelopedia.org/en/airport/GRK |title=Killeen Regional Airport / Robert Gray Army Airfield (GRK) |website=Vuelopedia |publisher=Fundación Poderia |date=2026-10-16 |access-date=2026-10-16 |language=en}}