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GRK to WBU: distance & flight time
Killeen (Robert Gray Army Air Field Airport) → Boulder (Boulder Municipal Airport)
746 mi
1,200 km · 648 nm
2h 5m
estimated nonstop flight time
-1h
time difference · heading northwest
See live GRK→WBU fares Phone-only fares on this route — call free
Flight time details
746 miles nonstop takes roughly 2h 5m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- GRK — Robert Gray Army Air Field Airport · Killeen, United States
- WBU — Boulder Municipal Airport · Boulder, 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 WBU
- DEN · Denver International Airport32 mi away
- BJC · Rocky Mountain Metropolitan Airport11 mi away
- FNL · Northern Colorado Regional Airport31 mi away
- BFK · Buckley Air Force Base34 mi away
Frequently asked questions
How far is GRK from WBU?
The flight distance from Killeen (GRK) to Boulder (WBU) is 746 miles (1,200 km, 648 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRK to WBU?
A nonstop flight takes about 2h 5m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Killeen and Boulder?
Boulder is 1 hour behind Killeen.
What is the cheapest way to fly from GRK to WBU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRK–WBU that never appear on search engines, with no booking fees.