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FCO to OSN: distance & flight time
Rome (Leonardo da Vinci–Fiumicino Airport) → Osan (Osan Air Base)
5,612 mi
9,031 km · 4,877 nm
11h 28m
estimated nonstop flight time
+7h
time difference · heading northeast
See live FCO→OSN fares Phone-only fares on this route — call free
Flight time details
5,612 miles nonstop takes roughly 11h 28m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- FCO — Leonardo da Vinci–Fiumicino Airport · Rome, Italy
- OSN — Osan Air Base · Osan, South Korea
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 FCO
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
Frequently asked questions
How far is FCO from OSN?
The flight distance from Rome (FCO) to Osan (OSN) is 5,612 miles (9,031 km, 4,877 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FCO to OSN?
A nonstop flight takes about 11h 28m 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 Rome and Osan?
Osan is 7 hours ahead of Rome.
What is the cheapest way to fly from FCO to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FCO–OSN that never appear on search engines, with no booking fees.