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COU to REP: distance & flight time
Columbia (Columbia Regional Airport) → Siem-reap (Siem Reap International Airport)
8,683 mi
13,973 km · 7,545 nm
17h 29m
estimated nonstop flight time
+12h
time difference · heading north
See live COU→REP fares Phone-only fares on this route — call free
Flight time details
8,683 miles nonstop takes roughly 17h 29m 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
- COU — Columbia Regional Airport · Columbia, United States
- REP — Siem Reap International Airport · Siem-reap, 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 COU
- JEF · Jefferson City Memorial Airport16 mi away
- AIZ · Lee C Fine Memorial Airport53 mi away
- SZL · Whiteman Air Force Base72 mi away
- TBN · Waynesville-St. Robert Regional Forney field75 mi away
Near REP
- BBM · Battambang Airport45 mi away
- KZC · Kampong Chhnang Airport95 mi away
- PXR · Surin Airport103 mi away
- TDX · Trat Airport128 mi away
Frequently asked questions
How far is COU from REP?
The flight distance from Columbia (COU) to Siem-reap (REP) is 8,683 miles (13,973 km, 7,545 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from COU to REP?
A nonstop flight takes about 17h 29m 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 Columbia and Siem-reap?
Siem-reap is 12 hours ahead of Columbia.
What is the cheapest way to fly from COU to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on COU–REP that never appear on search engines, with no booking fees.