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XSI to USM: distance & flight time
South Indian Lake (South Indian Lake Airport) → Ko Samui (Samui Airport)
7,727 mi
12,436 km · 6,715 nm
15h 37m
estimated nonstop flight time
+12h
time difference · heading north
See live XSI→USM fares Phone-only fares on this route — call free
Flight time details
7,727 miles nonstop takes roughly 15h 37m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time gain when reading arrival times on your ticket.
The two airports
- XSI — South Indian Lake Airport · South Indian Lake, 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 XSI
- YLR · Leaf Rapids Airport45 mi away
- YTH · Thompson Airport79 mi away
- YYL · Lynn Lake Airport82 mi away
- KES · Kelsey Airport105 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 XSI from USM?
The flight distance from South Indian Lake (XSI) to Ko Samui (USM) is 7,727 miles (12,436 km, 6,715 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from XSI to USM?
A nonstop flight takes about 15h 37m 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 South Indian Lake and Ko Samui?
Ko Samui is 12 hours ahead of South Indian Lake.
What is the cheapest way to fly from XSI to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on XSI–USM that never appear on search engines, with no booking fees.