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SGO to USM: distance & flight time
St George (St George Airport) → Ko Samui (Samui Airport)
4,153 mi
6,684 km · 3,609 nm
8h 37m
estimated nonstop flight time
-3h
time difference · heading northwest
See live SGO→USM fares Phone-only fares on this route — call free
Flight time details
4,153 miles nonstop takes roughly 8h 37m 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
- SGO — St George Airport · St George, 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 SGO
- DRN · Dirranbandi Airport44 mi away
- LHG · Lightning Ridge Airport104 mi away
- RMA · Roma Airport105 mi away
- GOO · Goondiwindi Airport110 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 SGO from USM?
The flight distance from St George (SGO) to Ko Samui (USM) is 4,153 miles (6,684 km, 3,609 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SGO to USM?
A nonstop flight takes about 8h 37m 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 St George and Ko Samui?
Ko Samui is 3 hours behind St George.
What is the cheapest way to fly from SGO to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SGO–USM that never appear on search engines, with no booking fees.