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BLT to USM: distance & flight time
Blackwater (Blackwater Airport) → Ko Samui (Samui Airport)
4,010 mi
6,453 km · 3,484 nm
8h 20m
estimated nonstop flight time
-3h
time difference · heading northwest
See live BLT→USM fares Phone-only fares on this route — call free
Flight time details
4,010 miles nonstop takes roughly 8h 20m 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
- BLT — Blackwater Airport · Blackwater, 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 BLT
- EMD · Emerald Airport40 mi away
- DYA · Dysart Airport73 mi away
- CMQ · Clermont Airport95 mi away
- ROK · Rockhampton Airport107 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 BLT from USM?
The flight distance from Blackwater (BLT) to Ko Samui (USM) is 4,010 miles (6,453 km, 3,484 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BLT to USM?
A nonstop flight takes about 8h 20m 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 Blackwater and Ko Samui?
Ko Samui is 3 hours behind Blackwater.
What is the cheapest way to fly from BLT to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BLT–USM that never appear on search engines, with no booking fees.