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GCC to KOS: distance & flight time
Gillette (Gillette Campbell County Airport) → Sihanoukville (Sihanoukville International Airport)
8,225 mi
13,237 km · 7,147 nm
16h 36m
estimated nonstop flight time
+13h
time difference · heading northwest
See live GCC→KOS fares Phone-only fares on this route — call free
Flight time details
8,225 miles nonstop takes roughly 16h 36m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time gain when reading arrival times on your ticket.
The two airports
- GCC — Gillette Campbell County Airport · Gillette, 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 GCC
- SHR · Sheridan County Airport77 mi away
- SPF · Black Hills Airport-Clyde Ice Field87 mi away
- CPR · Casper-Natrona County International Airport110 mi away
- RCA · Ellsworth Air Force Base121 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 GCC from KOS?
The flight distance from Gillette (GCC) to Sihanoukville (KOS) is 8,225 miles (13,237 km, 7,147 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GCC to KOS?
A nonstop flight takes about 16h 36m 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 Gillette and Sihanoukville?
Sihanoukville is 13 hours ahead of Gillette.
What is the cheapest way to fly from GCC to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GCC–KOS that never appear on search engines, with no booking fees.