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KOS to ATO: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Athens (Ohio University Snyder Field)
8,976 mi
14,445 km · 7,800 nm
18h 4m
estimated nonstop flight time
-11h
time difference · heading north
See live KOS→ATO fares Phone-only fares on this route — call free
Flight time details
8,976 miles nonstop takes roughly 18h 4m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time set-back when reading arrival times on your ticket.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- ATO — Ohio University Snyder Field · Athens, United States
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 ATO
- PMH · Greater Portsmouth Regional Airport42 mi away
- PKB · Mid Ohio Valley Regional Airport43 mi away
- ZZV · Zanesville Municipal Airport54 mi away
- LCK · Rickenbacker International Airport56 mi away
Frequently asked questions
How far is KOS from ATO?
The flight distance from Sihanoukville (KOS) to Athens (ATO) is 8,976 miles (14,445 km, 7,800 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to ATO?
A nonstop flight takes about 18h 4m 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 Athens?
Athens is 11 hours behind Sihanoukville.
What is the cheapest way to fly from KOS to ATO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–ATO that never appear on search engines, with no booking fees.