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HRO to KOS: distance & flight time
Harrison (Boone County Airport) → Sihanoukville (Sihanoukville International Airport)
9,021 mi
14,517 km · 7,839 nm
18h 9m
estimated nonstop flight time
+12h
time difference · heading north
See live HRO→KOS fares Phone-only fares on this route — call free
Flight time details
9,021 miles nonstop takes roughly 18h 9m gate to gate, flying north. 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
- HRO — Boone County Airport · Harrison, 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 HRO
- BKG · Branson Airport19 mi away
- FLP · Marion County Regional Airport32 mi away
- WMH · Ozark Regional Airport39 mi away
- FYV · Drake Field59 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 HRO from KOS?
The flight distance from Harrison (HRO) to Sihanoukville (KOS) is 9,021 miles (14,517 km, 7,839 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HRO to KOS?
A nonstop flight takes about 18h 9m 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 Harrison and Sihanoukville?
Sihanoukville is 12 hours ahead of Harrison.
What is the cheapest way to fly from HRO to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HRO–KOS that never appear on search engines, with no booking fees.