Need help booking?
Unpublished phone-only deals available
ICN to KOS: distance & flight time
Seoul (Incheon International Airport) → Sihanoukville (Sihanoukville International Airport)
2,336 mi
3,760 km · 2,030 nm
5h 3m
estimated nonstop flight time
-2h
time difference · heading southwest
See live ICN→KOS fares Phone-only fares on this route — call free
Flight time details
2,336 miles nonstop takes roughly 5h 3m 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
- ICN — Incheon International Airport · Seoul, South Korea
- 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 ICN
- GMP · Gimpo International Airport20 mi away
- SWU · Suwon Airport34 mi away
- SSN · Seoul Air Base (K-16)36 mi away
- OSN · Osan Air Base41 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 ICN from KOS?
The flight distance from Seoul (ICN) to Sihanoukville (KOS) is 2,336 miles (3,760 km, 2,030 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ICN to KOS?
A nonstop flight takes about 5h 3m 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 Seoul and Sihanoukville?
Sihanoukville is 2 hours behind Seoul.
What is the cheapest way to fly from ICN to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ICN–KOS that never appear on search engines, with no booking fees.