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GRK to ALO: distance & flight time
Killeen (Robert Gray Army Air Field Airport) → Waterloo (Waterloo Regional Airport)
848 mi
1,365 km · 737 nm
2h 19m
estimated nonstop flight time
Same time
time difference · heading north
See live GRK→ALO fares Phone-only fares on this route — call free
Flight time details
848 miles nonstop takes roughly 2h 19m gate to gate, flying north. 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
- ALO — Waterloo Regional Airport · Waterloo, 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 ALO
- CCY · Northeast Iowa Regional Airport37 mi away
- CID · The Eastern Iowa Airport58 mi away
- MCW · Mason City Municipal Airport63 mi away
- PCD · Prairie Du Chien Municipal Airport72 mi away
Frequently asked questions
How far is GRK from ALO?
The flight distance from Killeen (GRK) to Waterloo (ALO) is 848 miles (1,365 km, 737 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRK to ALO?
A nonstop flight takes about 2h 19m 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 cheapest way to fly from GRK to ALO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRK–ALO that never appear on search engines, with no booking fees.