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YLY to USM: distance & flight time
Langley Township (Langley Airport) → Ko Samui (Samui Airport)
7,630 mi
12,280 km · 6,631 nm
15h 26m
estimated nonstop flight time
+14h
time difference · heading northwest
See live YLY→USM fares Phone-only fares on this route — call free
Flight time details
7,630 miles nonstop takes roughly 15h 26m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- YLY — Langley Airport · Langley Township, 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 YLY
- YVR · Vancouver International Airport26 mi away
- YXX · Abbotsford Airport13 mi away
- YDT · Boundary Bay Airport17 mi away
- BLI · Bellingham International Airport22 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 YLY from USM?
The flight distance from Langley Township (YLY) to Ko Samui (USM) is 7,630 miles (12,280 km, 6,631 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YLY to USM?
A nonstop flight takes about 15h 26m 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 Langley Township and Ko Samui?
Ko Samui is 14 hours ahead of Langley Township.
What is the cheapest way to fly from YLY to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YLY–USM that never appear on search engines, with no booking fees.