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REP to YCM: distance & flight time
Siem-reap (Siem Reap International Airport) → Saint Catherines (Niagara District Airport)
8,521 mi
13,714 km · 7,405 nm
17h 11m
estimated nonstop flight time
-11h
time difference · heading north
See live REP→YCM fares Phone-only fares on this route — call free
Flight time details
8,521 miles nonstop takes roughly 17h 11m 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
- REP — Siem Reap International Airport · Siem-reap, 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 REP
- BBM · Battambang Airport45 mi away
- KZC · Kampong Chhnang Airport95 mi away
- PXR · Surin Airport103 mi away
- TDX · Trat Airport128 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 REP from YCM?
The flight distance from Siem-reap (REP) to Saint Catherines (YCM) is 8,521 miles (13,714 km, 7,405 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from REP to YCM?
A nonstop flight takes about 17h 11m 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 Siem-reap and Saint Catherines?
Saint Catherines is 11 hours behind Siem-reap.
What is the cheapest way to fly from REP to YCM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on REP–YCM that never appear on search engines, with no booking fees.