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CNI to USM: distance & flight time
Changhai (Changhai Airport) → Ko Samui (Samui Airport)
2,482 mi
3,994 km · 2,157 nm
5h 20m
estimated nonstop flight time
-1h
time difference · heading southwest
See live CNI→USM fares Phone-only fares on this route — call free
Flight time details
2,482 miles nonstop takes roughly 5h 20m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- CNI — Changhai Airport · Changhai, China
- 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 CNI
- DLC · Zhoushuizi Airport64 mi away
- YKH · Yingkou Lanqi Airport90 mi away
- DDG · Dandong Airport101 mi away
- AOG · Anshan Air Base127 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 CNI from USM?
The flight distance from Changhai (CNI) to Ko Samui (USM) is 2,482 miles (3,994 km, 2,157 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CNI to USM?
A nonstop flight takes about 5h 20m 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 Changhai and Ko Samui?
Ko Samui is 1 hour behind Changhai.
What is the cheapest way to fly from CNI to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CNI–USM that never appear on search engines, with no booking fees.