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KOS to TYS: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Knoxville (McGhee Tyson Airport)
9,193 mi
14,795 km · 7,989 nm
18h 30m
estimated nonstop flight time
-11h
time difference · heading north
See live KOS→TYS fares Phone-only fares on this route — call free
Flight time details
9,193 miles nonstop takes roughly 18h 30m 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
- TYS — McGhee Tyson Airport · Knoxville, 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 TYS
- MMI · McMinn County Airport43 mi away
- HDI · Hardwick Field62 mi away
- CSV · Crossville Memorial Whitson Field62 mi away
- AVL · Asheville Regional Airport86 mi away
Frequently asked questions
How far is KOS from TYS?
The flight distance from Sihanoukville (KOS) to Knoxville (TYS) is 9,193 miles (14,795 km, 7,989 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to TYS?
A nonstop flight takes about 18h 30m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from KOS to TYS?
Nonstop service on KOS–TYS depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 18h 30m nonstop estimate.
What is the time difference between Sihanoukville and Knoxville?
Knoxville is 11 hours behind Sihanoukville.
What is the cheapest way to fly from KOS to TYS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–TYS that never appear on search engines, with no booking fees.
Why are some KOS to TYS fares phone-only?
Consolidator contracts let us sell certain KOS–TYS tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.