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KOS to OIM: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Oshima (Oshima Airport)
2,800 mi
4,505 km · 2,433 nm
5h 57m
estimated nonstop flight time
+2h
time difference · heading northeast
See live KOS→OIM fares Phone-only fares on this route — call free
Flight time details
2,800 miles nonstop takes roughly 5h 57m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- OIM — Oshima Airport · Oshima, Japan
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 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
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
Frequently asked questions
How far is KOS from OIM?
The flight distance from Sihanoukville (KOS) to Oshima (OIM) 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 KOS to OIM?
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 Sihanoukville and Oshima?
Oshima is 2 hours ahead of Sihanoukville.
What is the cheapest way to fly from KOS to OIM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–OIM that never appear on search engines, with no booking fees.