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GRK to KOS: distance & flight time
Killeen (Robert Gray Army Air Field Airport) → Sihanoukville (Sihanoukville International Airport)
9,227 mi
14,849 km · 8,018 nm
18h 33m
estimated nonstop flight time
+12h
time difference · heading northwest
See live GRK→KOS fares Phone-only fares on this route — call free
Flight time details
9,227 miles nonstop takes roughly 18h 33m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time gain when reading arrival times on your ticket.
The two airports
- GRK — Robert Gray Army Air Field Airport · Killeen, United States
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
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 KOS
- PQC · Phu Quoc International Airport37 mi away
- PNH · Phnom Penh International Airport106 mi away
- VKG · Rach Gia Airport110 mi away
- KZC · Kampong Chhnang Airport132 mi away
Frequently asked questions
How far is GRK from KOS?
The flight distance from Killeen (GRK) to Sihanoukville (KOS) is 9,227 miles (14,849 km, 8,018 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRK to KOS?
A nonstop flight takes about 18h 33m 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 Sihanoukville?
Sihanoukville is 12 hours ahead of Killeen.
What is the cheapest way to fly from GRK to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRK–KOS that never appear on search engines, with no booking fees.