Need help booking?
Unpublished phone-only deals available
KOS to SDY: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Sidney (Sidney - Richland Regional Airport)
8,063 mi
12,975 km · 7,006 nm
16h 17m
estimated nonstop flight time
-13h
time difference · heading north
See live KOS→SDY fares Phone-only fares on this route — call free
Flight time details
8,063 miles nonstop takes roughly 16h 17m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time set-back when reading arrival times on your ticket.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- SDY — Sidney - Richland Regional Airport · Sidney, 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 SDY
- ISN · Sloulin Field International Airport41 mi away
- GDV · Dawson Community Airport49 mi away
- OLF · L M Clayton Airport69 mi away
- DIK · Dickinson Theodore Roosevelt Regional Airport91 mi away
Frequently asked questions
How far is KOS from SDY?
The flight distance from Sihanoukville (KOS) to Sidney (SDY) is 8,063 miles (12,975 km, 7,006 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to SDY?
A nonstop flight takes about 16h 17m 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 Sidney?
Sidney is 13 hours behind Sihanoukville.
What is the cheapest way to fly from KOS to SDY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–SDY that never appear on search engines, with no booking fees.