Killeen Regional Airport / Robert Gray Army Airfield
Fort Cavazos, United States — flight times and distances to airports around the world, computed from published coordinates.
SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026
How this is worked out
- Both airports' coordinates come from OurAirports, a public-domain dataset — nothing is scraped from another flight site.
- Distance is a great-circle (haversine) figure on a mean earth radius of 6,371.0088 km, so it is the shortest path over the surface, not a road distance.
- Airborne time is that distance divided by 805 km/h, a representative jet cruise speed.
- A flat 25 minutes is added for pushback, taxi, climb, descent and taxi-in, which is why no hop is ever half an hour gate to gate.
- Winds, aircraft type and airline schedule padding are not modelled, and every route page shows the same distance at four cruise speeds so you can see what that assumption is worth.
gate-to-gate hours = 0.42 + distance km / 805
SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026
Flight times from GRK to the nearest major hubs
Great-circle distance and estimated flight time to the closest large international airports — the realistic connecting points from Fort Cavazos.
| Hub | Code | Distance | Flight time |
|---|---|---|---|
| Austin, United States | AUS | 98 km | 33m |
| Dallas-Fort Worth, United States | DFW | 217 km | 41m |
| Houston, United States | IAH | 267 km | 45m |
| Denver, United States | DEN | 1,157 km | 1h 51m |
| Nashville, United States | BNA | 1,175 km | 1h 53m |
| Atlanta, United States | ATL | 1,290 km | 2h 01m |
| Mexico City, Mexico | MEX | 1,299 km | 2h 02m |
| Phoenix, United States | PHX | 1,358 km | 2h 06m |
| Chicago, United States | MDW | 1,492 km | 2h 16m |
| Chicago, United States | ORD | 1,501 km | 2h 17m |
SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026
Questions about GRK
What is the airport code for Fort Cavazos?
Killeen Regional Airport / Robert Gray Army Airfield uses the IATA code GRK and the ICAO code KGRK. IATA codes are the three-letter ones on your boarding pass; ICAO codes are four letters and used by air traffic control.
Where is Killeen Regional Airport / Robert Gray Army Airfield?
It sits at 31.0672° N, 97.8289° W, serving Fort Cavazos in United States, at an elevation of 1,015 feet.
Data from OurAirports (public domain) · Wikipedia. Flight times are great-circle estimates for planning only — always check the airline's published schedule.
