Need help booking?
Unpublished phone-only deals available
OSN to TKN: distance & flight time
Osan (Osan Air Base) → Tokunoshima (Tokunoshima Airport)
648 mi
1,044 km · 563 nm
1h 53m
estimated nonstop flight time
Same time
time difference · heading south
See live OSN→TKN fares Phone-only fares on this route — call free
Flight time details
648 miles nonstop takes roughly 1h 53m gate to gate, flying south. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- TKN — Tokunoshima Airport · Tokunoshima, Japan
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 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
Near TKN
- OKE · Okierabu Airport30 mi away
- RNJ · Yoron Airport62 mi away
- ASJ · Amami Airport65 mi away
- KKX · Kikai Airport72 mi away
Frequently asked questions
How far is OSN from TKN?
The flight distance from Osan (OSN) to Tokunoshima (TKN) is 648 miles (1,044 km, 563 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to TKN?
A nonstop flight takes about 1h 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 cheapest way to fly from OSN to TKN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–TKN that never appear on search engines, with no booking fees.