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KOS to AOU: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Attopeu (Attopeu Airport)
363 mi
584 km · 315 nm
1h 25m
estimated nonstop flight time
—
time difference · heading northeast
See live KOS→AOU fares Phone-only fares on this route — call free
Flight time details
363 miles nonstop takes roughly 1h 25m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- AOU — Attopeu Airport · Attopeu, Laos
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 AOU
- VNA · Saravane Airport68 mi away
- PKZ · Pakse International Airport73 mi away
- RBE · Ratanakiri Airport76 mi away
- PXU · Pleiku Airport98 mi away
Frequently asked questions
How far is KOS from AOU?
The flight distance from Sihanoukville (KOS) to Attopeu (AOU) is 363 miles (584 km, 315 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to AOU?
A nonstop flight takes about 1h 25m 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 cheapest way to fly from KOS to AOU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–AOU that never appear on search engines, with no booking fees.