Need help booking?
Unpublished phone-only deals available
GRK to STL: distance & flight time
Killeen (Robert Gray Army Air Field Airport) → St. Louis (St Louis Lambert International Airport)
678 mi
1,091 km · 589 nm
1h 56m
estimated nonstop flight time
Same time
time difference · heading northeast
See live GRK→STL fares Phone-only fares on this route — call free
Flight time details
678 miles nonstop takes roughly 1h 56m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- GRK — Robert Gray Army Air Field Airport · Killeen, United States
- STL — St Louis Lambert International Airport · St. Louis, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near GRK
- HLR · Hood Army Air Field8 mi away
- AUS · Austin Bergstrom International Airport61 mi away
- TPL · Draughon Miller Central Texas Regional Airport26 mi away
- ACT · Waco Regional Airport52 mi away
Near STL
- SUS · Spirit of St Louis Airport16 mi away
- ALN · St Louis Regional Airport20 mi away
- BLV · Scott AFB/Midamerica Airport32 mi away
- SPI · Abraham Lincoln Capital Airport84 mi away
Frequently asked questions
How far is GRK from STL?
The flight distance from Killeen (GRK) to St. Louis (STL) is 678 miles (1,091 km, 589 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRK to STL?
A nonstop flight takes about 1h 56m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from GRK to STL?
Nonstop service on GRK–STL depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 56m nonstop estimate.
What is the cheapest way to fly from GRK to STL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRK–STL that never appear on search engines, with no booking fees.
Why are some GRK to STL fares phone-only?
Consolidator contracts let us sell certain GRK–STL tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.