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ASE to REP: distance & flight time
Aspen (Aspen-Pitkin Co/Sardy Field) → Siem-reap (Siem Reap International Airport)
8,298 mi
13,354 km · 7,210 nm
16h 44m
estimated nonstop flight time
+13h
time difference · heading northwest
See live ASE→REP fares Phone-only fares on this route — call free
Flight time details
8,298 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
- ASE — Aspen-Pitkin Co/Sardy Field · Aspen, 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 ASE
- EGE · Eagle County Regional Airport29 mi away
- GUC · Gunnison Crested Butte Regional Airport48 mi away
- RIL · Garfield County Regional Airport50 mi away
- MTJ · Montrose Regional Airport74 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 ASE from REP?
The flight distance from Aspen (ASE) to Siem-reap (REP) is 8,298 miles (13,354 km, 7,210 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ASE 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 Aspen and Siem-reap?
Siem-reap is 13 hours ahead of Aspen.
What is the cheapest way to fly from ASE to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ASE–REP that never appear on search engines, with no booking fees.