Need help booking?
Unpublished phone-only deals available
KOS to YCM: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Saint Catherines (Niagara District Airport)
8,717 mi
14,029 km · 7,575 nm
17h 34m
estimated nonstop flight time
-11h
time difference · heading north
See live KOS→YCM fares Phone-only fares on this route — call free
Flight time details
8,717 miles nonstop takes roughly 17h 34m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time set-back when reading arrival times on your ticket.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- YCM — Niagara District Airport · Saint Catherines, Canada
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 YCM
- YYZ · Lester B. Pearson International Airport41 mi away
- IAG · Niagara Falls International Airport13 mi away
- BUF · Buffalo Niagara International Airport28 mi away
- DU9 · Dunnville Airport31 mi away
Frequently asked questions
How far is KOS from YCM?
The flight distance from Sihanoukville (KOS) to Saint Catherines (YCM) is 8,717 miles (14,029 km, 7,575 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to YCM?
A nonstop flight takes about 17h 34m 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 Saint Catherines?
Saint Catherines is 11 hours behind Sihanoukville.
What is the cheapest way to fly from KOS to YCM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–YCM that never appear on search engines, with no booking fees.