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YSU to USM: distance & flight time
Summerside (Summerside Airport) → Ko Samui (Samui Airport)
8,442 mi
13,587 km · 7,336 nm
17h 1m
estimated nonstop flight time
+10h
time difference · heading north
See live YSU→USM fares Phone-only fares on this route — call free
Flight time details
8,442 miles nonstop takes roughly 17h 1m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10-hour time gain when reading arrival times on your ticket.
The two airports
- YSU — Summerside Airport · Summerside, 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 YSU
- YYG · Charlottetown Airport36 mi away
- YQM · Greater Moncton International Airport46 mi away
- YCH · Miramichi Airport86 mi away
- YHZ · Halifax / Stanfield International Airport109 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 YSU from USM?
The flight distance from Summerside (YSU) to Ko Samui (USM) is 8,442 miles (13,587 km, 7,336 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YSU to USM?
A nonstop flight takes about 17h 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 Summerside and Ko Samui?
Ko Samui is 10 hours ahead of Summerside.
What is the cheapest way to fly from YSU to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YSU–USM that never appear on search engines, with no booking fees.