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WYS to REP: distance & flight time
West Yellowstone (Yellowstone Airport) → Siem-reap (Siem Reap International Airport)
7,864 mi
12,656 km · 6,834 nm
15h 53m
estimated nonstop flight time
+13h
time difference · heading northwest
See live WYS→REP fares Phone-only fares on this route — call free
Flight time details
7,864 miles nonstop takes roughly 15h 53m 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
- WYS — Yellowstone Airport · West Yellowstone, 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 WYS
- BZN · Gallatin Field75 mi away
- JAC · Jackson Hole Airport77 mi away
- LVM · Mission Field77 mi away
- IDA · Idaho Falls Regional Airport94 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 WYS from REP?
The flight distance from West Yellowstone (WYS) to Siem-reap (REP) is 7,864 miles (12,656 km, 6,834 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from WYS to REP?
A nonstop flight takes about 15h 53m 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 West Yellowstone and Siem-reap?
Siem-reap is 13 hours ahead of West Yellowstone.
What is the cheapest way to fly from WYS to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on WYS–REP that never appear on search engines, with no booking fees.