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USM to DCI: distance & flight time
Ko Samui (Samui Airport) → Decimomannu (Decimomannu Air Base)
5,859 mi
9,429 km · 5,091 nm
11h 57m
estimated nonstop flight time
-5h
time difference · heading northwest
See live USM→DCI fares Phone-only fares on this route — call free
Flight time details
5,859 miles nonstop takes roughly 11h 57m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time set-back when reading arrival times on your ticket.
The two airports
- USM — Samui Airport · Ko Samui, Thailand
- DCI — Decimomannu Air Base · Decimomannu, Italy
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 USM
- URT · Surat Thani Airport69 mi away
- NST · Nakhon Si Thammarat Airport70 mi away
- CJM · Chumphon Airport93 mi away
- UNN · Ranong Airport102 mi away
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
Frequently asked questions
How far is USM from DCI?
The flight distance from Ko Samui (USM) to Decimomannu (DCI) is 5,859 miles (9,429 km, 5,091 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USM to DCI?
A nonstop flight takes about 11h 57m 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 Ko Samui and Decimomannu?
Decimomannu is 5 hours behind Ko Samui.
What is the cheapest way to fly from USM to DCI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USM–DCI that never appear on search engines, with no booking fees.