Need help booking?
Unpublished phone-only deals available
ISM to OSN: distance & flight time
Kissimmee (Kissimmee Gateway Airport) → Osan (Osan Air Base)
7,557 mi
12,161 km · 6,567 nm
15h 17m
estimated nonstop flight time
+13h
time difference · heading northwest
See live ISM→OSN fares Phone-only fares on this route — call free
Flight time details
7,557 miles nonstop takes roughly 15h 17m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time gain when reading arrival times on your ticket.
The two airports
- ISM — Kissimmee Gateway Airport · Kissimmee, United States
- 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 ISM
- MCO · Orlando International Airport12 mi away
- ORL · Orlando Executive Airport19 mi away
- GIF · Winter Haven Regional Airport - Gilbert Field25 mi away
- TPA · Tampa International Airport70 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 ISM from OSN?
The flight distance from Kissimmee (ISM) to Osan (OSN) is 7,557 miles (12,161 km, 6,567 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISM to OSN?
A nonstop flight takes about 15h 17m 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 Kissimmee and Osan?
Osan is 13 hours ahead of Kissimmee.
What is the cheapest way to fly from ISM to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISM–OSN that never appear on search engines, with no booking fees.