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SJY to OSN: distance & flight time
Seinäjoki / Ilmajoki (Seinäjoki Airport) → Osan (Osan Air Base)
4,388 mi
7,062 km · 3,813 nm
9h 4m
estimated nonstop flight time
+6h
time difference · heading northeast
See live SJY→OSN fares Phone-only fares on this route — call free
Flight time details
4,388 miles nonstop takes roughly 9h 4m 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
- SJY — Seinäjoki Airport · Seinäjoki / Ilmajoki, 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 SJY
- KHJ · Kauhajoki Airport21 mi away
- KAU · Kauhava Airport31 mi away
- VAA · Vaasa Airport42 mi away
- KOK · Kokkola-Pietarsaari Airport72 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 SJY from OSN?
The flight distance from Seinäjoki / Ilmajoki (SJY) to Osan (OSN) is 4,388 miles (7,062 km, 3,813 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SJY to OSN?
A nonstop flight takes about 9h 4m 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 Seinäjoki / Ilmajoki and Osan?
Osan is 6 hours ahead of Seinäjoki / Ilmajoki.
What is the cheapest way to fly from SJY to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SJY–OSN that never appear on search engines, with no booking fees.