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REP to BTM: distance & flight time
Siem-reap (Siem Reap International Airport) → Butte (Bert Mooney Airport)
7,754 mi
12,479 km · 6,738 nm
15h 40m
estimated nonstop flight time
-13h
time difference · heading northeast
See live REP→BTM fares Phone-only fares on this route — call free
Flight time details
7,754 miles nonstop takes roughly 15h 40m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time set-back when reading arrival times on your ticket.
The two airports
- REP — Siem Reap International Airport · Siem-reap, Cambodia
- BTM — Bert Mooney Airport · Butte, United States
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 REP
- BBM · Battambang Airport45 mi away
- KZC · Kampong Chhnang Airport95 mi away
- PXR · Surin Airport103 mi away
- TDX · Trat Airport128 mi away
Near BTM
- HLN · Helena Regional Airport51 mi away
- BZN · Gallatin Field66 mi away
- SMN · Lemhi County Airport88 mi away
- LVM · Mission Field100 mi away
Frequently asked questions
How far is REP from BTM?
The flight distance from Siem-reap (REP) to Butte (BTM) is 7,754 miles (12,479 km, 6,738 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from REP to BTM?
A nonstop flight takes about 15h 40m 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 Siem-reap and Butte?
Butte is 13 hours behind Siem-reap.
What is the cheapest way to fly from REP to BTM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on REP–BTM that never appear on search engines, with no booking fees.