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CVG to USM: distance & flight time
Cincinnati (Cincinnati Northern Kentucky International Airport) → Ko Samui (Samui Airport)
9,065 mi
14,589 km · 7,878 nm
18h 15m
estimated nonstop flight time
+11h
time difference · heading north
See live CVG→USM fares Phone-only fares on this route — call free
Flight time details
9,065 miles nonstop takes roughly 18h 15m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time gain when reading arrival times on your ticket.
The two airports
- CVG — Cincinnati Northern Kentucky International Airport · Cincinnati, 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 CVG
- LUK · Cincinnati Municipal Airport Lunken Field14 mi away
- HAO · Butler Co Regional Airport - Hogan Field23 mi away
- MGY · Dayton-Wright Brothers Airport44 mi away
- ILN · Wilmington Airpark54 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 CVG from USM?
The flight distance from Cincinnati (CVG) to Ko Samui (USM) is 9,065 miles (14,589 km, 7,878 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CVG to USM?
A nonstop flight takes about 18h 15m 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 Cincinnati and Ko Samui?
Ko Samui is 11 hours ahead of Cincinnati.
What is the cheapest way to fly from CVG to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CVG–USM that never appear on search engines, with no booking fees.