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LSW to USM: distance & flight time
Lhok Seumawe-Sumatra Island (Malikus Saleh Airport) → Ko Samui (Samui Airport)
367 mi
590 km · 319 nm
1h 26m
estimated nonstop flight time
Same time
time difference · heading northeast
See live LSW→USM fares Phone-only fares on this route — call free
Flight time details
367 miles nonstop takes roughly 1h 26m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- LSW — Malikus Saleh Airport · Lhok Seumawe-Sumatra Island, Indonesia
- 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 LSW
- LSX · Lhok Sukon Airport24 mi away
- MEQ · Seunagan Airport84 mi away
- BTJ · Sultan Iskandar Muda International Airport107 mi away
- SBG · Maimun Saleh Airport119 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 LSW from USM?
The flight distance from Lhok Seumawe-Sumatra Island (LSW) to Ko Samui (USM) is 367 miles (590 km, 319 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LSW to USM?
A nonstop flight takes about 1h 26m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from LSW to USM?
Nonstop service on LSW–USM depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 26m nonstop estimate.
What is the cheapest way to fly from LSW to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LSW–USM that never appear on search engines, with no booking fees.
Why are some LSW to USM fares phone-only?
Consolidator contracts let us sell certain LSW–USM tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.