Need help booking?
Unpublished phone-only deals available
HEK to USM: distance & flight time
Heihe (Heihe Airport) → Ko Samui (Samui Airport)
3,210 mi
5,166 km · 2,789 nm
6h 46m
estimated nonstop flight time
-1h
time difference · heading southwest
See live HEK→USM fares Phone-only fares on this route — call free
Flight time details
3,210 miles nonstop takes roughly 6h 46m 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
- HEK — Heihe Airport · Heihe, 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 HEK
- BQS · Ignatyevo Airport18 mi away
- DTU · Wudalianchi Dedu Airport131 mi away
- JGD · Jiagedaqi Airport142 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 HEK from USM?
The flight distance from Heihe (HEK) to Ko Samui (USM) is 3,210 miles (5,166 km, 2,789 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HEK to USM?
A nonstop flight takes about 6h 46m 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 Heihe and Ko Samui?
Ko Samui is 1 hour behind Heihe.
What is the cheapest way to fly from HEK to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HEK–USM that never appear on search engines, with no booking fees.