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REP to YSM: distance & flight time
Siem-reap (Siem Reap International Airport) → Fort Smith (Fort Smith Airport)
6,989 mi
11,248 km · 6,073 nm
14h 10m
estimated nonstop flight time
-13h
time difference · heading north
See live REP→YSM fares Phone-only fares on this route — call free
Flight time details
6,989 miles nonstop takes roughly 14h 10m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time set-back when reading arrival times on your ticket.
The two airports
- REP — Siem Reap International Airport · Siem-reap, Cambodia
- YSM — Fort Smith Airport · Fort Smith, 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 YSM
- YPY · Fort Chipewyan Airport92 mi away
- YFR · Fort Resolution Airport99 mi away
- YBE · Uranium City Airport125 mi away
- YHY · Hay River / Merlyn Carter Airport142 mi away
Frequently asked questions
How far is REP from YSM?
The flight distance from Siem-reap (REP) to Fort Smith (YSM) is 6,989 miles (11,248 km, 6,073 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from REP to YSM?
A nonstop flight takes about 14h 10m 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 Fort Smith?
Fort Smith is 13 hours behind Siem-reap.
What is the cheapest way to fly from REP to YSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on REP–YSM that never appear on search engines, with no booking fees.