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YSP to USM: distance & flight time
Marathon (Marathon Airport) → Ko Samui (Samui Airport)
8,390 mi
13,502 km · 7,290 nm
16h 55m
estimated nonstop flight time
+11h
time difference · heading north
See live YSP→USM fares Phone-only fares on this route — call free
Flight time details
8,390 miles nonstop takes roughly 16h 55m 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
- YSP — Marathon Airport · Marathon, Canada
- 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 YSP
- YMG · Manitouwadge Airport32 mi away
- YGQ · Geraldton Greenstone Regional Airport76 mi away
- YHN · Hornepayne Municipal Airport78 mi away
- YXZ · Wawa Airport90 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 YSP from USM?
The flight distance from Marathon (YSP) to Ko Samui (USM) is 8,390 miles (13,502 km, 7,290 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YSP to USM?
A nonstop flight takes about 16h 55m 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 Marathon and Ko Samui?
Ko Samui is 11 hours ahead of Marathon.
What is the cheapest way to fly from YSP to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YSP–USM that never appear on search engines, with no booking fees.