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IWS to REP: distance & flight time
Houston (West Houston Airport) → Siem-reap (Siem Reap International Airport)
9,180 mi
14,774 km · 7,977 nm
18h 28m
estimated nonstop flight time
+12h
time difference · heading northwest
See live IWS→REP fares Phone-only fares on this route — call free
Flight time details
9,180 miles nonstop takes roughly 18h 28m gate to gate, flying northwest. 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
- IWS — West Houston Airport · Houston, 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 IWS
- IAH · George Bush Intercontinental Houston Airport23 mi away
- AAP · Andrau Airpark8 mi away
- SGR · Sugar Land Regional Airport14 mi away
- DWH · David Wayne Hooks Memorial Airport18 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 IWS from REP?
The flight distance from Houston (IWS) to Siem-reap (REP) is 9,180 miles (14,774 km, 7,977 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IWS to REP?
A nonstop flight takes about 18h 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 Houston and Siem-reap?
Siem-reap is 12 hours ahead of Houston.
What is the cheapest way to fly from IWS to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IWS–REP that never appear on search engines, with no booking fees.