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GUS to REP: distance & flight time
Peru (Grissom Air Reserve Base) → Siem-reap (Siem Reap International Airport)
8,648 mi
13,917 km · 7,514 nm
17h 25m
estimated nonstop flight time
+11h
time difference · heading north
See live GUS→REP fares Phone-only fares on this route — call free
Flight time details
8,648 miles nonstop takes roughly 17h 25m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time gain when reading arrival times on your ticket.
The two airports
- GUS — Grissom Air Reserve Base · Peru, 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 GUS
- OKK · Kokomo Municipal Airport10 mi away
- LAF · Purdue University Airport44 mi away
- AID · Anderson Municipal Darlington Field47 mi away
- MIE · Delaware County Johnson Field49 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 GUS from REP?
The flight distance from Peru (GUS) to Siem-reap (REP) is 8,648 miles (13,917 km, 7,514 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GUS to REP?
A nonstop flight takes about 17h 25m 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 Peru and Siem-reap?
Siem-reap is 11 hours ahead of Peru.
What is the cheapest way to fly from GUS to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GUS–REP that never appear on search engines, with no booking fees.