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YMH to USM: distance & flight time
Mary's Harbour (Mary's Harbour Airport) → Ko Samui (Samui Airport)
7,931 mi
12,764 km · 6,892 nm
16h 1m
estimated nonstop flight time
+9.5h
time difference · heading northeast
See live YMH→USM fares Phone-only fares on this route — call free
Flight time details
7,931 miles nonstop takes roughly 16h 1m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9.5-hour time gain when reading arrival times on your ticket.
The two airports
- YMH — Mary's Harbour Airport · Mary's Harbour, 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 YMH
- YFX · St. Lewis (Fox Harbour) Airport9 mi away
- YWM · Williams Harbour Airport18 mi away
- YHA · Port Hope Simpson Airport24 mi away
- YAY · St. Anthony Airport64 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 YMH from USM?
The flight distance from Mary's Harbour (YMH) to Ko Samui (USM) is 7,931 miles (12,764 km, 6,892 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YMH to USM?
A nonstop flight takes about 16h 1m 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 Mary's Harbour and Ko Samui?
Ko Samui is 9.5 hours ahead of Mary's Harbour.
What is the cheapest way to fly from YMH to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YMH–USM that never appear on search engines, with no booking fees.