Need help booking?
Unpublished phone-only deals available
OSN to TBN: distance & flight time
Osan (Osan Air Base) → Fort Leonardwood (Waynesville-St. Robert Regional Forney field)
6,694 mi
10,773 km · 5,817 nm
13h 36m
estimated nonstop flight time
-14h
time difference · heading northeast
See live OSN→TBN fares Phone-only fares on this route — call free
Flight time details
6,694 miles nonstop takes roughly 13h 36m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- TBN — Waynesville-St. Robert Regional Forney field · Fort Leonardwood, United States
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 TBN
- AIZ · Lee C Fine Memorial Airport33 mi away
- JEF · Jefferson City Memorial Airport59 mi away
- COU · Columbia Regional Airport75 mi away
- SGF · Springfield Branson National Airport77 mi away
Frequently asked questions
How far is OSN from TBN?
The flight distance from Osan (OSN) to Fort Leonardwood (TBN) is 6,694 miles (10,773 km, 5,817 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to TBN?
A nonstop flight takes about 13h 36m 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 Osan and Fort Leonardwood?
Fort Leonardwood is 14 hours behind Osan.
What is the cheapest way to fly from OSN to TBN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–TBN that never appear on search engines, with no booking fees.