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OSF to REP: distance & flight time
Moscow (Ostafyevo International Airport) → Siem-reap (Siem Reap International Airport)
4,535 mi
7,299 km · 3,941 nm
9h 22m
estimated nonstop flight time
+4h
time difference · heading east
See live OSF→REP fares Phone-only fares on this route — call free
Flight time details
4,535 miles nonstop takes roughly 9h 22m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 4-hour time gain when reading arrival times on your ticket.
The two airports
- OSF — Ostafyevo International Airport · Moscow, Russia
- 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 OSF
- VKO · Vnukovo International Airport11 mi away
- DME · Domodedovo International Airport17 mi away
- BKA · Bykovo Airport23 mi away
- ZIA · Zhukovsky International Airport25 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 OSF from REP?
The flight distance from Moscow (OSF) to Siem-reap (REP) is 4,535 miles (7,299 km, 3,941 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSF to REP?
A nonstop flight takes about 9h 22m 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 Moscow and Siem-reap?
Siem-reap is 4 hours ahead of Moscow.
What is the cheapest way to fly from OSF to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSF–REP that never appear on search engines, with no booking fees.