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PHN to USM: distance & flight time
Port Huron (St Clair County International Airport) → Ko Samui (Samui Airport)
8,809 mi
14,176 km · 7,654 nm
17h 44m
estimated nonstop flight time
+11h
time difference · heading north
See live PHN→USM fares Phone-only fares on this route — call free
Flight time details
8,809 miles nonstop takes roughly 17h 44m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time gain when reading arrival times on your ticket.
The two airports
- PHN — St Clair County International Airport · Port Huron, United States
- 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 PHN
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 PHN from USM?
The flight distance from Port Huron (PHN) to Ko Samui (USM) is 8,809 miles (14,176 km, 7,654 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PHN to USM?
A nonstop flight takes about 17h 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 Port Huron and Ko Samui?
Ko Samui is 11 hours ahead of Port Huron.
What is the cheapest way to fly from PHN to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PHN–USM that never appear on search engines, with no booking fees.