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OIM to KOS: distance & flight time
Oshima (Oshima Airport) → Sihanoukville (Sihanoukville International Airport)
2,800 mi
4,505 km · 2,433 nm
5h 57m
estimated nonstop flight time
-2h
time difference · heading southwest
See live OIM→KOS fares Phone-only fares on this route — call free
Flight time details
2,800 miles nonstop takes roughly 5h 57m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- OIM — Oshima Airport · Oshima, Japan
- KOS — Sihanoukville International Airport · Sihanoukville, 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 OIM
- HND · Tokyo Haneda International Airport58 mi away
- NJA · Atsugi Naval Air Facility47 mi away
- NRT · Narita International Airport89 mi away
- MYE · Miyakejima Airport50 mi away
Near KOS
- PQC · Phu Quoc International Airport37 mi away
- PNH · Phnom Penh International Airport106 mi away
- VKG · Rach Gia Airport110 mi away
- KZC · Kampong Chhnang Airport132 mi away
Frequently asked questions
How far is OIM from KOS?
The flight distance from Oshima (OIM) to Sihanoukville (KOS) is 2,800 miles (4,505 km, 2,433 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OIM to KOS?
A nonstop flight takes about 5h 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 Oshima and Sihanoukville?
Sihanoukville is 2 hours behind Oshima.
What is the cheapest way to fly from OIM to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OIM–KOS that never appear on search engines, with no booking fees.