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KNO to USM: distance & flight time
Medan (Kualanamu International Airport) → Ko Samui (Samui Airport)
416 mi
669 km · 361 nm
1h 22m
estimated nonstop flight time
Same time
time difference · heading north
See live KNO→USM fares Phone-only fares on this route — call free
Flight time details
416 miles nonstop takes roughly 1h 22m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- KNO — Kualanamu International Airport · Medan, Indonesia
- USM — Samui Airport · Ko Samui, Thailand
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 KNO
- MES · Soewondo Air Force Base16 mi away
- DTB · Silangit Airport96 mi away
- PKG · Pulau Pangkor Airport122 mi away
- FLZ · Dr Ferdinand Lumban Tobing Airport144 mi away
Near USM
- URT · Surat Thani Airport69 mi away
- NST · Nakhon Si Thammarat Airport70 mi away
- CJM · Chumphon Airport93 mi away
- UNN · Ranong Airport102 mi away
Frequently asked questions
How far is KNO from USM?
The flight distance from Medan (KNO) to Ko Samui (USM) is 416 miles (669 km, 361 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KNO to USM?
A nonstop flight takes about 1h 22m 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 KNO to USM?
Nonstop service on KNO–USM 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 1h 22m nonstop estimate.
What is the cheapest way to fly from KNO to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KNO–USM that never appear on search engines, with no booking fees.
Why are some KNO to USM fares phone-only?
Consolidator contracts let us sell certain KNO–USM 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.