Need help booking?
Unpublished phone-only deals available
KOS to FRI: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Fort Riley (Marshall Army Air Field)
8,765 mi
14,105 km · 7,616 nm
17h 39m
estimated nonstop flight time
-12h
time difference · heading north
See live KOS→FRI fares Phone-only fares on this route — call free
Flight time details
8,765 miles nonstop takes roughly 17h 39m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time set-back when reading arrival times on your ticket.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- FRI — Marshall Army Air Field · Fort Riley, 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 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
Near FRI
- MHK · Manhattan Regional Airport8 mi away
- SLN · Salina Municipal Airport51 mi away
- EMP · Emporia Municipal Airport59 mi away
- FOE · Topeka Regional Airport - Forbes Field60 mi away
Frequently asked questions
How far is KOS from FRI?
The flight distance from Sihanoukville (KOS) to Fort Riley (FRI) is 8,765 miles (14,105 km, 7,616 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to FRI?
A nonstop flight takes about 17h 39m 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 Sihanoukville and Fort Riley?
Fort Riley is 12 hours behind Sihanoukville.
What is the cheapest way to fly from KOS to FRI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–FRI that never appear on search engines, with no booking fees.