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USM to HIO: distance & flight time
Ko Samui (Samui Airport) → Hillsboro (Portland Hillsboro Airport)
7,790 mi
12,537 km · 6,769 nm
15h 44m
estimated nonstop flight time
-14h
time difference · heading northeast
See live USM→HIO fares Phone-only fares on this route — call free
Flight time details
7,790 miles nonstop takes roughly 15h 44m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- USM — Samui Airport · Ko Samui, Thailand
- HIO — Portland Hillsboro Airport · Hillsboro, United States
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 HIO
- PDX · Portland International Airport17 mi away
- TTD · Portland Troutdale Airport27 mi away
- KLS · Southwest Washington Regional Airport40 mi away
- OTK · Tillamook Airport43 mi away
Frequently asked questions
How far is USM from HIO?
The flight distance from Ko Samui (USM) to Hillsboro (HIO) is 7,790 miles (12,537 km, 6,769 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USM to HIO?
A nonstop flight takes about 15h 44m 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 Hillsboro?
Hillsboro is 14 hours behind Ko Samui.
What is the cheapest way to fly from USM to HIO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USM–HIO that never appear on search engines, with no booking fees.