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KAU to OSN: distance & flight time
Kauhava (Kauhava Airport) → Osan (Osan Air Base)
4,367 mi
7,028 km · 3,795 nm
9h 2m
estimated nonstop flight time
+6h
time difference · heading northeast
See live KAU→OSN fares Phone-only fares on this route — call free
Flight time details
4,367 miles nonstop takes roughly 9h 2m 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
- KAU — Kauhava Airport · Kauhava, 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 KAU
- SJY · Seinäjoki Airport31 mi away
- KOK · Kokkola-Pietarsaari Airport41 mi away
- VAA · Vaasa Airport41 mi away
- KHJ · Kauhajoki Airport50 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 KAU from OSN?
The flight distance from Kauhava (KAU) to Osan (OSN) is 4,367 miles (7,028 km, 3,795 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KAU to OSN?
A nonstop flight takes about 9h 2m 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 Kauhava and Osan?
Osan is 6 hours ahead of Kauhava.
What is the cheapest way to fly from KAU to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KAU–OSN that never appear on search engines, with no booking fees.