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REP to DUC: distance & flight time
Siem-reap (Siem Reap International Airport) → Duncan (Halliburton Field)
8,833 mi
14,215 km · 7,676 nm
17h 47m
estimated nonstop flight time
-12h
time difference · heading northeast
See live REP→DUC fares Phone-only fares on this route — call free
Flight time details
8,833 miles nonstop takes roughly 17h 47m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time set-back when reading arrival times on your ticket.
The two airports
- REP — Siem Reap International Airport · Siem-reap, Cambodia
- DUC — Halliburton Field · Duncan, United States
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 DUC
Frequently asked questions
How far is REP from DUC?
The flight distance from Siem-reap (REP) to Duncan (DUC) is 8,833 miles (14,215 km, 7,676 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from REP to DUC?
A nonstop flight takes about 17h 47m 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 Duncan?
Duncan is 12 hours behind Siem-reap.
What is the cheapest way to fly from REP to DUC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on REP–DUC that never appear on search engines, with no booking fees.