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OSN to ISM: distance & flight time
Osan (Osan Air Base) → Kissimmee (Kissimmee Gateway Airport)
7,557 mi
12,161 km · 6,567 nm
15h 17m
estimated nonstop flight time
-13h
time difference · heading northeast
See live OSN→ISM fares Phone-only fares on this route — call free
Flight time details
7,557 miles nonstop takes roughly 15h 17m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- ISM — Kissimmee Gateway Airport · Kissimmee, 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 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
Frequently asked questions
How far is OSN from ISM?
The flight distance from Osan (OSN) to Kissimmee (ISM) 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 OSN to ISM?
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 Osan and Kissimmee?
Kissimmee is 13 hours behind Osan.
What is the cheapest way to fly from OSN to ISM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–ISM that never appear on search engines, with no booking fees.