Need help booking?
Unpublished phone-only deals available
INI to KOS: distance & flight time
Nis (Nis Airport) → Sihanoukville (Sihanoukville International Airport)
5,307 mi
8,541 km · 4,612 nm
10h 52m
estimated nonstop flight time
+5h
time difference · heading east
See live INI→KOS fares Phone-only fares on this route — call free
Flight time details
5,307 miles nonstop takes roughly 10h 52m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time gain when reading arrival times on your ticket.
The two airports
- INI — Nis Airport · Nis, Serbia
- 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 INI
- PRN · Priština International Airport67 mi away
- SOF · Sofia Airport90 mi away
- SKP · Skopje Alexander the Great Airport96 mi away
- CRA · Craiova Airport122 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 INI from KOS?
The flight distance from Nis (INI) to Sihanoukville (KOS) is 5,307 miles (8,541 km, 4,612 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from INI to KOS?
A nonstop flight takes about 10h 52m 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 Nis and Sihanoukville?
Sihanoukville is 5 hours ahead of Nis.
What is the cheapest way to fly from INI to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on INI–KOS that never appear on search engines, with no booking fees.