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MSO to REP: distance & flight time
Missoula (Missoula International Airport) → Siem-reap (Siem Reap International Airport)
7,655 mi
12,319 km · 6,652 nm
15h 29m
estimated nonstop flight time
+13h
time difference · heading northwest
See live MSO→REP fares Phone-only fares on this route — call free
Flight time details
7,655 miles nonstop takes roughly 15h 29m 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
- MSO — Missoula International Airport · Missoula, 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 MSO
- FCA · Glacier Park International Airport97 mi away
- BTM · Bert Mooney Airport101 mi away
- HLN · Helena Regional Airport102 mi away
- SMN · Lemhi County Airport124 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 MSO from REP?
The flight distance from Missoula (MSO) to Siem-reap (REP) is 7,655 miles (12,319 km, 6,652 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from MSO to REP?
A nonstop flight takes about 15h 29m 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 Missoula and Siem-reap?
Siem-reap is 13 hours ahead of Missoula.
What is the cheapest way to fly from MSO to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on MSO–REP that never appear on search engines, with no booking fees.