Need help booking?
Unpublished phone-only deals available
DCI to KOS: distance & flight time
Decimomannu (Decimomannu Air Base) → Sihanoukville (Sihanoukville International Airport)
6,002 mi
9,659 km · 5,216 nm
12h 14m
estimated nonstop flight time
+5h
time difference · heading east
See live DCI→KOS fares Phone-only fares on this route — call free
Flight time details
6,002 miles nonstop takes roughly 12h 14m 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
- DCI — Decimomannu Air Base · Decimomannu, Italy
- 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 DCI
- CAG · Cagliari Elmas Airport8 mi away
- FNU · Oristano-Fenosu Airport41 mi away
- TTB · Tortolì Airport54 mi away
- AHO · Alghero-Fertilia Airport95 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 DCI from KOS?
The flight distance from Decimomannu (DCI) to Sihanoukville (KOS) is 6,002 miles (9,659 km, 5,216 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DCI to KOS?
A nonstop flight takes about 12h 14m 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 Decimomannu and Sihanoukville?
Sihanoukville is 5 hours ahead of Decimomannu.
What is the cheapest way to fly from DCI to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DCI–KOS that never appear on search engines, with no booking fees.