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AST to KOS: distance & flight time
Astoria (Astoria Regional Airport) → Sihanoukville (Sihanoukville International Airport)
7,539 mi
12,133 km · 6,551 nm
15h 15m
estimated nonstop flight time
+14h
time difference · heading northwest
See live AST→KOS fares Phone-only fares on this route — call free
Flight time details
7,539 miles nonstop takes roughly 15h 15m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- AST — Astoria Regional Airport · Astoria, United States
- 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 AST
- KLS · Southwest Washington Regional Airport47 mi away
- OTK · Tillamook Airport51 mi away
- HQM · Bowerman Airport56 mi away
- CLS · Chehalis Centralia Airport56 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 AST from KOS?
The flight distance from Astoria (AST) to Sihanoukville (KOS) is 7,539 miles (12,133 km, 6,551 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from AST to KOS?
A nonstop flight takes about 15h 15m 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 Astoria and Sihanoukville?
Sihanoukville is 14 hours ahead of Astoria.
What is the cheapest way to fly from AST to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on AST–KOS that never appear on search engines, with no booking fees.