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LWS to USM: distance & flight time
Lewiston (Lewiston Nez Perce County Airport) → Ko Samui (Samui Airport)
7,946 mi
12,788 km · 6,905 nm
16h 3m
estimated nonstop flight time
+14h
time difference · heading northwest
See live LWS→USM fares Phone-only fares on this route — call free
Flight time details
7,946 miles nonstop takes roughly 16h 3m 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
- LWS — Lewiston Nez Perce County Airport · Lewiston, United States
- 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 LWS
- PUW · Pullman Moscow Regional Airport26 mi away
- ALW · Walla Walla Regional Airport64 mi away
- GEG · Spokane International Airport89 mi away
- LGD · La Grande/Union County Airport89 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 LWS from USM?
The flight distance from Lewiston (LWS) to Ko Samui (USM) is 7,946 miles (12,788 km, 6,905 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LWS to USM?
A nonstop flight takes about 16h 3m 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 Lewiston and Ko Samui?
Ko Samui is 14 hours ahead of Lewiston.
What is the cheapest way to fly from LWS to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LWS–USM that never appear on search engines, with no booking fees.