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GRK to SUX: distance & flight time
Killeen (Robert Gray Army Air Field Airport) → Sioux City (Sioux Gateway Col. Bud Day Field)
787 mi
1,267 km · 684 nm
2h 11m
estimated nonstop flight time
Same time
time difference · heading north
See live GRK→SUX fares Phone-only fares on this route — call free
Flight time details
787 miles nonstop takes roughly 2h 11m 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
- SUX — Sioux Gateway Col. Bud Day Field · Sioux City, 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 SUX
- OFK · Karl Stefan Memorial Airport61 mi away
- YKN · Chan Gurney Municipal Airport62 mi away
- FET · Fremont Municipal Airport66 mi away
- OMA · Eppley Airfield80 mi away
Frequently asked questions
How far is GRK from SUX?
The flight distance from Killeen (GRK) to Sioux City (SUX) is 787 miles (1,267 km, 684 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRK to SUX?
A nonstop flight takes about 2h 11m 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 SUX?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRK–SUX that never appear on search engines, with no booking fees.