Need help booking?
Unpublished phone-only deals available
KOS to SYO: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Shonai (Shonai Airport)
2,958 mi
4,761 km · 2,571 nm
6h 16m
estimated nonstop flight time
+2h
time difference · heading northeast
See live KOS→SYO fares Phone-only fares on this route — call free
Flight time details
2,958 miles nonstop takes roughly 6h 16m 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
- SYO — Shonai Airport · Shonai, 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 SYO
- GAJ · Yamagata Airport42 mi away
- AXT · Akita Airport60 mi away
- KIJ · Niigata Airport69 mi away
- SDJ · Sendai Airport77 mi away
Frequently asked questions
How far is KOS from SYO?
The flight distance from Sihanoukville (KOS) to Shonai (SYO) is 2,958 miles (4,761 km, 2,571 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to SYO?
A nonstop flight takes about 6h 16m 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 Shonai?
Shonai is 2 hours ahead of Sihanoukville.
What is the cheapest way to fly from KOS to SYO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–SYO that never appear on search engines, with no booking fees.