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KOS to ISM: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Kissimmee (Kissimmee Gateway Airport)
9,730 mi
15,659 km · 8,455 nm
19h 33m
estimated nonstop flight time
-11h
time difference · heading north
See live KOS→ISM fares Phone-only fares on this route — call free
Flight time details
9,730 miles nonstop takes roughly 19h 33m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time set-back when reading arrival times on your ticket.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- 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 KOS
- PQC · Phu Quoc International Airport37 mi away
- PNH · Phnom Penh International Airport106 mi away
- VKG · Rach Gia Airport110 mi away
- KZC · Kampong Chhnang Airport132 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 KOS from ISM?
The flight distance from Sihanoukville (KOS) to Kissimmee (ISM) is 9,730 miles (15,659 km, 8,455 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to ISM?
A nonstop flight takes about 19h 33m 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 Sihanoukville and Kissimmee?
Kissimmee is 11 hours behind Sihanoukville.
What is the cheapest way to fly from KOS to ISM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–ISM that never appear on search engines, with no booking fees.