Need help booking?
Unpublished phone-only deals available
PTJ to USM: distance & flight time
Portland (Portland Airport) → Ko Samui (Samui Airport)
4,248 mi
6,836 km · 3,691 nm
8h 48m
estimated nonstop flight time
-3h
time difference · heading northwest
See live PTJ→USM fares Phone-only fares on this route — call free
Flight time details
4,248 miles nonstop takes roughly 8h 48m 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
- PTJ — Portland Airport · Portland, 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 PTJ
- WMB · Warrnambool Airport53 mi away
- MGB · Mount Gambier Airport54 mi away
- HLT · Hamilton Airport56 mi away
- NAC · Naracoorte Airport101 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 PTJ from USM?
The flight distance from Portland (PTJ) to Ko Samui (USM) is 4,248 miles (6,836 km, 3,691 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PTJ to USM?
A nonstop flight takes about 8h 48m 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 Portland and Ko Samui?
Ko Samui is 3 hours behind Portland.
What is the cheapest way to fly from PTJ to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PTJ–USM that never appear on search engines, with no booking fees.