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THG to USM: distance & flight time
Biloela (Thangool Airport) → Ko Samui (Samui Airport)
4,137 mi
6,658 km · 3,595 nm
8h 35m
estimated nonstop flight time
-3h
time difference · heading northwest
See live THG→USM fares Phone-only fares on this route — call free
Flight time details
4,137 miles nonstop takes roughly 8h 35m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- THG — Thangool Airport · Biloela, Australia
- 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 THG
- TDR · Theodore Airport46 mi away
- GLT · Gladstone Airport59 mi away
- ROK · Rockhampton Airport77 mi away
- GKL · Great Keppel Is Airport93 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 THG from USM?
The flight distance from Biloela (THG) to Ko Samui (USM) is 4,137 miles (6,658 km, 3,595 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from THG to USM?
A nonstop flight takes about 8h 35m 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 Biloela and Ko Samui?
Ko Samui is 3 hours behind Biloela.
What is the cheapest way to fly from THG to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on THG–USM that never appear on search engines, with no booking fees.