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USM to LWT: distance & flight time
Ko Samui (Samui Airport) → Lewistown (Lewistown Municipal Airport)
8,125 mi
13,076 km · 7,061 nm
16h 24m
estimated nonstop flight time
-13h
time difference · heading north
See live USM→LWT fares Phone-only fares on this route — call free
Flight time details
8,125 miles nonstop takes roughly 16h 24m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time set-back when reading arrival times on your ticket.
The two airports
- USM — Samui Airport · Ko Samui, Thailand
- LWT — Lewistown Municipal Airport · Lewistown, United States
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 USM
- URT · Surat Thani Airport69 mi away
- NST · Nakhon Si Thammarat Airport70 mi away
- CJM · Chumphon Airport93 mi away
- UNN · Ranong Airport102 mi away
Near LWT
- GTF · Great Falls International Airport94 mi away
- BIL · Billings Logan International Airport96 mi away
- HVR · Havre City County Airport104 mi away
- LVM · Mission Field104 mi away
Frequently asked questions
How far is USM from LWT?
The flight distance from Ko Samui (USM) to Lewistown (LWT) is 8,125 miles (13,076 km, 7,061 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USM to LWT?
A nonstop flight takes about 16h 24m 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 Ko Samui and Lewistown?
Lewistown is 13 hours behind Ko Samui.
What is the cheapest way to fly from USM to LWT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USM–LWT that never appear on search engines, with no booking fees.