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USM to ISA: distance & flight time
Ko Samui (Samui Airport) → Mount Isa (Mount Isa Airport)
3,395 mi
5,464 km · 2,950 nm
7h 7m
estimated nonstop flight time
+3h
time difference · heading southeast
See live USM→ISA fares Phone-only fares on this route — call free
Flight time details
3,395 miles nonstop takes roughly 7h 7m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time gain when reading arrival times on your ticket.
The two airports
- USM — Samui Airport · Ko Samui, Thailand
- ISA — Mount Isa Airport · Mount Isa, Australia
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 USM
- URT · Surat Thani Airport69 mi away
- NST · Nakhon Si Thammarat Airport70 mi away
- CJM · Chumphon Airport93 mi away
- UNN · Ranong Airport102 mi away
Near ISA
- CNJ · Cloncurry Airport66 mi away
- JCK · Julia Creek Airport144 mi away
Frequently asked questions
How far is USM from ISA?
The flight distance from Ko Samui (USM) to Mount Isa (ISA) is 3,395 miles (5,464 km, 2,950 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USM to ISA?
A nonstop flight takes about 7h 7m 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 Ko Samui and Mount Isa?
Mount Isa is 3 hours ahead of Ko Samui.
What is the cheapest way to fly from USM to ISA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USM–ISA that never appear on search engines, with no booking fees.