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LAI to USM: distance & flight time
Lannion (Lannion-Côte de Granit Airport) → Ko Samui (Samui Airport)
6,327 mi
10,182 km · 5,498 nm
12h 52m
estimated nonstop flight time
+5h
time difference · heading east
See live LAI→USM fares Phone-only fares on this route — call free
Flight time details
6,327 miles nonstop takes roughly 12h 52m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time gain when reading arrival times on your ticket.
The two airports
- LAI — Lannion-Côte de Granit Airport · Lannion, France
- 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 LAI
- MXN · Morlaix-Ploujean Airport19 mi away
- SBK · Saint-Brieuc-Armor Airport32 mi away
- LDV · Landivisiau Air Base35 mi away
- BES · Brest Bretagne Airport48 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 LAI from USM?
The flight distance from Lannion (LAI) to Ko Samui (USM) is 6,327 miles (10,182 km, 5,498 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LAI to USM?
A nonstop flight takes about 12h 52m 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 Lannion and Ko Samui?
Ko Samui is 5 hours ahead of Lannion.
What is the cheapest way to fly from LAI to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LAI–USM that never appear on search engines, with no booking fees.