Need help booking?
Unpublished phone-only deals available
RIW to REP: distance & flight time
Riverton WY (Riverton Regional Airport) → Siem-reap (Siem Reap International Airport)
8,033 mi
12,928 km · 6,981 nm
16h 13m
estimated nonstop flight time
+13h
time difference · heading northwest
See live RIW→REP fares Phone-only fares on this route — call free
Flight time details
8,033 miles nonstop takes roughly 16h 13m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time gain when reading arrival times on your ticket.
The two airports
- RIW — Riverton Regional Airport · Riverton WY, 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 RIW
- LND · Hunt Field22 mi away
- WRL · Worland Municipal Airport67 mi away
- PWY · Ralph Wenz Field71 mi away
- BPI · Miley Memorial Field90 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 RIW from REP?
The flight distance from Riverton WY (RIW) to Siem-reap (REP) is 8,033 miles (12,928 km, 6,981 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RIW to REP?
A nonstop flight takes about 16h 13m 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 Riverton WY and Siem-reap?
Siem-reap is 13 hours ahead of Riverton WY.
What is the cheapest way to fly from RIW to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RIW–REP that never appear on search engines, with no booking fees.