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KOE to OSN: distance & flight time
Kupang (El Tari Airport) → Osan (Osan Air Base)
3,273 mi
5,267 km · 2,844 nm
6h 53m
estimated nonstop flight time
+1h
time difference · heading north
See live KOE→OSN fares Phone-only fares on this route — call free
Flight time details
3,273 miles nonstop takes roughly 6h 53m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- KOE — El Tari Airport · Kupang, Indonesia
- 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 KOE
- UAI · Suai Airport125 mi away
- MOF · Maumere(Wai Oti) Airport144 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 KOE from OSN?
The flight distance from Kupang (KOE) to Osan (OSN) is 3,273 miles (5,267 km, 2,844 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOE to OSN?
A nonstop flight takes about 6h 53m 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 Kupang and Osan?
Osan is 1 hour ahead of Kupang.
What is the cheapest way to fly from KOE to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOE–OSN that never appear on search engines, with no booking fees.