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IDA to REP: distance & flight time
Idaho Falls (Idaho Falls Regional Airport) → Siem-reap (Siem Reap International Airport)
7,899 mi
12,712 km · 6,864 nm
15h 57m
estimated nonstop flight time
+13h
time difference · heading northwest
See live IDA→REP fares Phone-only fares on this route — call free
Flight time details
7,899 miles nonstop takes roughly 15h 57m 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
- IDA — Idaho Falls Regional Airport · Idaho Falls, 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 IDA
- PIH · Pocatello Regional Airport49 mi away
- JAC · Jackson Hole Airport67 mi away
- WYS · Yellowstone Airport94 mi away
- BYI · Burley Municipal Airport109 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 IDA from REP?
The flight distance from Idaho Falls (IDA) to Siem-reap (REP) is 7,899 miles (12,712 km, 6,864 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IDA to REP?
A nonstop flight takes about 15h 57m 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 Idaho Falls and Siem-reap?
Siem-reap is 13 hours ahead of Idaho Falls.
What is the cheapest way to fly from IDA to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IDA–REP that never appear on search engines, with no booking fees.