650 € Cheap Flights from Samui International (USM) to London Gatwick (LGW)

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Flight deals from Samui International to London Gatwick

Looking for a cheap last-minute deal or the best return flight from Samui International to London Gatwick? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Samui International to London Gatwick

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Samui International to London Gatwick flights are currently cheapest in December.

Samui International to London Gatwick: Alternative routes

Compare routes from Samui International to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Gatwick.

Koh Samui to London: Flight information

The things to know before you go.
Cheapest flight found650 €
Cheapest month to flyDecember

Finding cheap flights from Samui International to London Gatwick: Frequently asked questions

The best price we found for a return flight from Samui International to London Gatwick is 650 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Samui International to London Gatwick. But we found flights with one or more stops from 650 €.
As of November 2025, there are no flights flying from Samui International to London Gatwick.
The cheapest month to fly from Samui International to London Gatwick is usually December.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Samui International Airport to London Gatwick Airport on Monday, 8 December 2025.
No airlines currently offer direct flights between Samui International Airport and London Gatwick Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Gatwick but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Bangkok Airways offers the cheapest flight tickets to London Gatwick.

Flying from Koh Samui Airport (USM) to London Gatwick Airport (LGW): what you need to know

  • The timezone in London is UTC+0, which is seven hours behind Koh Samui.

  • Get to the airport on time so you don't miss your USM to LGW flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid a last-minute sprint to the gate.

  • Flying during a peak month such as July? School holidays and other popular seasons can result in longer lines and delays at airport checkpoints. Play things extra safe and get there up to four hours before an international flight and two hours before a domestic departure.

How to find the cheapest flights from Koh Samui Airport (USM) to London Gatwick Airport (LGW)

  • Right now, 267 € is the cheapest price we've seen for a one-way Koh Samui Airport to London Gatwick Airport flight. The best price for a return ticket is 650 €. Keep in mind that fares can change due to demand at the time of booking.

  • To find cheap tickets from USM to LGW, book as early as you can. Airlines tend to offer their best fares when flights are first made available.

  • The 'Whole month' search function shows you the cheapest flights from Koh Samui Airport to London Gatwick Airport throughout the month. It's a good way to snap up a bargain if your trip dates are flexible.

  • There's no need to check every day to see if fares have dropped when you set up a Price Alert. We'll update you the moment there's a new deal on cheap flights from USM to LGW.

  • Secure the right flight for you with the help of the filters. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Koh Samui Airport to London Gatwick Airport, use the 'Sort by' tool. You can also filter by airline, departure and arrival times, and number of stops.

Handy information about Koh Samui Airport (USM)

  • Of all flights leaving Koh Samui Airport, 69.38% land on time at their destination.

  • Koh Samui Airport is around 3 kilometres from central Koh Samui. To work out how to get there, use Google Maps. This handy traveller tool will give you the best route and your public transport options.

  • Looking for a convenient hotel near USM? If you've booked an early flight from Koh Samui Airport to London Gatwick Airport, these stays will put you moments from your departure gate:

Arriving at London Gatwick Airport (LGW)

Getting from London Gatwick Airport (LGW) to central London

  • London Gatwick Airport to central London has a drive time of about 1 hour 20 minutes. It's approximately 80 kilometres away.

  • It typically takes 1 hour 25 minutes if you're using public transport.

When to fly to London Gatwick Airport (LGW)

  • The quietest month for a flight from Koh Samui Airport to London Gatwick Airport is January, while August is the most popular. Choose the best time to go to London based on whether you prefer a more fast-paced or easygoing experience.

  • Before locking in your flight from Koh Samui Airport to London Gatwick Airport, think about the kind of weather you enjoy. July is the warmest month in London, with the temperature ranging from 11ºC (52ºF) to 26ºC (79ºF).

  • January sees average temperatures of between 0ºC (32ºF) and 9ºC (48ºF). Search for cheap tickets from USM to LGW around that time if you want to travel in cooler conditions.

Explore more of United Kingdom

  • Birmingham is just one of the many places in United Kingdom waiting to be discovered once you've seen the sights of London. Around 161 kilometres away to the north-west, well-known attractions include Cadbury World, The Library of Birmingham and National Sea Life Centre.

  • Bristol is another must-experience destination in United Kingdom and is around 177 kilometres west of London. No journey is complete without seeing Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.