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KAO to OSN: distance & flight time
Kuusamo (Kuusamo Airport) → Osan (Osan Air Base)
4,114 mi
6,621 km · 3,575 nm
8h 32m
estimated nonstop flight time
+6h
time difference · heading northeast
See live KAO→OSN fares Phone-only fares on this route — call free
Flight time details
4,114 miles nonstop takes roughly 8h 32m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- KAO — Kuusamo Airport · Kuusamo, Finland
- 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 KAO
- RVN · Rovaniemi Airport103 mi away
- SOT · Sodankyla Airport121 mi away
- KAJ · Kajaani Airport126 mi away
- KEM · Kemi-Tornio Airport132 mi away
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 KAO from OSN?
The flight distance from Kuusamo (KAO) to Osan (OSN) is 4,114 miles (6,621 km, 3,575 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KAO to OSN?
A nonstop flight takes about 8h 32m 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 Kuusamo and Osan?
Osan is 6 hours ahead of Kuusamo.
What is the cheapest way to fly from KAO to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KAO–OSN that never appear on search engines, with no booking fees.