Need help booking?
Unpublished phone-only deals available
FNL to REP: distance & flight time
Fort Collins (Northern Colorado Regional Airport) → Siem-reap (Siem Reap International Airport)
8,282 mi
13,329 km · 7,197 nm
16h 42m
estimated nonstop flight time
+13h
time difference · heading northwest
See live FNL→REP fares Phone-only fares on this route — call free
Flight time details
8,282 miles nonstop takes roughly 16h 42m 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
- FNL — Northern Colorado Regional Airport · Fort Collins, 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 FNL
- DEN · Denver International Airport45 mi away
- GXY · Greeley–Weld County Airport20 mi away
- WBU · Boulder Municipal Airport31 mi away
- BJC · Rocky Mountain Metropolitan Airport38 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 FNL from REP?
The flight distance from Fort Collins (FNL) to Siem-reap (REP) is 8,282 miles (13,329 km, 7,197 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FNL to REP?
A nonstop flight takes about 16h 42m 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 Fort Collins and Siem-reap?
Siem-reap is 13 hours ahead of Fort Collins.
What is the cheapest way to fly from FNL to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FNL–REP that never appear on search engines, with no booking fees.