Need help booking?
Unpublished phone-only deals available
OJC to USM: distance & flight time
Olathe (Johnson County Executive Airport) → Ko Samui (Samui Airport)
8,960 mi
14,420 km · 7,786 nm
18h 2m
estimated nonstop flight time
+12h
time difference · heading north
See live OJC→USM fares Phone-only fares on this route — call free
Flight time details
8,960 miles nonstop takes roughly 18h 2m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time gain when reading arrival times on your ticket.
The two airports
- OJC — Johnson County Executive Airport · Olathe, United States
- 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 OJC
- JCI · New Century Aircenter Airport8 mi away
- MKC · Charles B. Wheeler Downtown Airport21 mi away
- LWC · Lawrence Municipal Airport28 mi away
- MCI · Kansas City International Airport31 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 OJC from USM?
The flight distance from Olathe (OJC) to Ko Samui (USM) is 8,960 miles (14,420 km, 7,786 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OJC to USM?
A nonstop flight takes about 18h 2m 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 Olathe and Ko Samui?
Ko Samui is 12 hours ahead of Olathe.
What is the cheapest way to fly from OJC to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OJC–USM that never appear on search engines, with no booking fees.