Search flights from London (LON) to Koh Samui (USM)

Book your plane tickets from London to Koh Samui with ease

Cheapest flights to Koh Samui

The cheapest flights available in the next 60 days – prices are updated regularly

Flying from London to Koh Samui: things to know

The most popular route is from London Heathrow Airport in London to Samui International Airport in Koh Samui. On average this flight takes 15 hours 34 minutes one-way and costs $3,304 round-trip.

Most popular route
London Heathrow Airport (LHR) to Samui International Airport (USM)
Average flight time
15 hours 34 minutes
Average round-trip price
$3,304
Fly from London to Koh Samui
25 airlines

Reasons to book flights with Booking.com

  • Great selection

    Easily compare flights, airlines, and prices – all in one place

  • No hidden fees

    Always know exactly what you’re paying for

  • Flexibility

    Use our flexible plane ticket option to change your dates if needed

Flexible plane ticket options are available for an additional cost on select airfares

Airlines that fly from London to Koh Samui

Airline options may vary according to recently booked flights and your search terms

  • Thai Airways
  • Emirates
  • Eva Air
  • Qatar Airways
  • Etihad Airways
  • Singapore Airlines
  • Qantas Airways
  • Swiss
  • British Airways
  • Austrian Airlines
  • China Eastern Airlines
  • Gulf Air
  • Cathay Pacific
  • Lufthansa
  • Turkish Airlines
  • Vietnam Airlines

Frequently asked questions

Fly to more destinations from London

Research, refine, and make plans for your whole trip

Hotels in Koh Samui

Thinking about which towns and cities to visit during your trip? Try Koh Samui, a popular choice with other visitors.

All flights

Fly to your next dream destination.

Flights from London to Thailand

Plan your next getaway from London.

Flights from the United Kingdom to Thailand

More options to fly to Thailand.

Flights to Koh Samui

Getting to Koh Samui just got easier!

Flights to Surat Thani Province

Getting to Surat Thani Province just got easier!

Flights to South Thailand

Get your flight tickets to South Thailand right here on Booking.com.