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HEM to KOS: distance & flight time
Helsinki (Helsinki Malmi Airport) → Sihanoukville (Sihanoukville International Airport)
5,194 mi
8,359 km · 4,514 nm
10h 39m
estimated nonstop flight time
+4h
time difference · heading east
See live HEM→KOS fares Phone-only fares on this route — call free
Flight time details
5,194 miles nonstop takes roughly 10h 39m 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
- HEM — Helsinki Malmi Airport · Helsinki, Finland
- 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 HEM
- HEL · Helsinki Vantaa Airport5 mi away
- HYV · Hyvinkää Airfield28 mi away
- TLL · Lennart Meri Tallinn Airport59 mi away
- QLF · Lahti Vesivehmaa Airport65 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 HEM from KOS?
The flight distance from Helsinki (HEM) to Sihanoukville (KOS) is 5,194 miles (8,359 km, 4,514 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HEM to KOS?
A nonstop flight takes about 10h 39m 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 Helsinki and Sihanoukville?
Sihanoukville is 4 hours ahead of Helsinki.
What is the cheapest way to fly from HEM to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HEM–KOS that never appear on search engines, with no booking fees.