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HIA to USM: distance & flight time
Huai An (Lianshui Airport) → Ko Samui (Samui Airport)
2,066 mi
3,325 km · 1,795 nm
4h 31m
estimated nonstop flight time
-1h
time difference · heading southwest
See live HIA→USM fares Phone-only fares on this route — call free
Flight time details
2,066 miles nonstop takes roughly 4h 31m 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
- HIA — Lianshui Airport · Huai An, 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 HIA
- LYG · Lianyungang Airport56 mi away
- YNZ · Yancheng Airport67 mi away
- XUZ · Xuzhou Guanyin Airport92 mi away
- YTY · Yangzhou Taizhou Airport92 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 HIA from USM?
The flight distance from Huai An (HIA) to Ko Samui (USM) is 2,066 miles (3,325 km, 1,795 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HIA to USM?
A nonstop flight takes about 4h 31m 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 Huai An and Ko Samui?
Ko Samui is 1 hour behind Huai An.
What is the cheapest way to fly from HIA to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HIA–USM that never appear on search engines, with no booking fees.