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OSN to DCI: distance & flight time
Osan (Osan Air Base) → Decimomannu (Decimomannu Air Base)
5,852 mi
9,419 km · 5,086 nm
11h 57m
estimated nonstop flight time
-7h
time difference · heading northwest
See live OSN→DCI fares Phone-only fares on this route — call free
Flight time details
5,852 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 7-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- 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 OSN
- ICN · Incheon International Airport41 mi away
- SWU · Suwon Airport10 mi away
- SSN · Seoul Air Base (K-16)25 mi away
- GMP · Gimpo International Airport35 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 OSN from DCI?
The flight distance from Osan (OSN) to Decimomannu (DCI) is 5,852 miles (9,419 km, 5,086 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN 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 Osan and Decimomannu?
Decimomannu is 7 hours behind Osan.
What is the cheapest way to fly from OSN to DCI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–DCI that never appear on search engines, with no booking fees.