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KTI to USM: distance & flight time
Kratie (Kratie Airport) → Ko Samui (Samui Airport)
454 mi
731 km · 395 nm
1h 27m
estimated nonstop flight time
Same time
time difference · heading southwest
See live KTI→USM fares Phone-only fares on this route — call free
Flight time details
454 miles nonstop takes roughly 1h 27m gate to gate, flying southwest. 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
- KTI — Kratie Airport · Kratie, Cambodia
- 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 KTI
- TNX · Stung Treng Airport72 mi away
- KZC · Kampong Chhnang Airport102 mi away
- PNH · Phnom Penh International Airport105 mi away
- RBE · Ratanakiri Airport106 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 KTI from USM?
The flight distance from Kratie (KTI) to Ko Samui (USM) is 454 miles (731 km, 395 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KTI to USM?
A nonstop flight takes about 1h 27m 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 cheapest way to fly from KTI to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KTI–USM that never appear on search engines, with no booking fees.