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DEC to REP: distance & flight time
Decatur (Decatur Airport) → Siem-reap (Siem Reap International Airport)
8,669 mi
13,951 km · 7,533 nm
17h 28m
estimated nonstop flight time
+12h
time difference · heading north
See live DEC→REP fares Phone-only fares on this route — call free
Flight time details
8,669 miles nonstop takes roughly 17h 28m 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
- DEC — Decatur Airport · Decatur, 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 DEC
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 DEC from REP?
The flight distance from Decatur (DEC) to Siem-reap (REP) is 8,669 miles (13,951 km, 7,533 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DEC to REP?
A nonstop flight takes about 17h 28m 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 Decatur and Siem-reap?
Siem-reap is 12 hours ahead of Decatur.
What is the cheapest way to fly from DEC to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DEC–REP that never appear on search engines, with no booking fees.