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WBU to REP: distance & flight time
Boulder (Boulder Municipal Airport) → Siem-reap (Siem Reap International Airport)
8,300 mi
13,357 km · 7,212 nm
16h 44m
estimated nonstop flight time
+13h
time difference · heading northwest
See live WBU→REP fares Phone-only fares on this route — call free
Flight time details
8,300 miles nonstop takes roughly 16h 44m 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
- WBU — Boulder Municipal Airport · Boulder, 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 WBU
- DEN · Denver International Airport32 mi away
- BJC · Rocky Mountain Metropolitan Airport11 mi away
- FNL · Northern Colorado Regional Airport31 mi away
- BFK · Buckley Air Force Base34 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 WBU from REP?
The flight distance from Boulder (WBU) to Siem-reap (REP) is 8,300 miles (13,357 km, 7,212 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from WBU to REP?
A nonstop flight takes about 16h 44m 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 Boulder and Siem-reap?
Siem-reap is 13 hours ahead of Boulder.
What is the cheapest way to fly from WBU to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on WBU–REP that never appear on search engines, with no booking fees.