Cheap Flights from Samui International to London

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Compare Samui International to London flight deals

Find the cheapest month or even day of the year to fly to London

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Flight deals from Samui International to London

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

Find the cheapest month to fly from Samui International to London

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

Alternative Samui International to London routes

Looking for the cheapest, fastest or easiest route from Samui International to London? You could fly into the following airports instead.

Koh Samui to London: Flight information

The things to know before you go.
Cheapest flight foundR 4,843
Cheapest month to flyOctober

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

There are 6 airports in London: London City, London Heathrow, London Gatwick, London Luton, London Stansted, and London Southend.
The best price we found for a return flight from Samui International to London is R 16,748. 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. But we found flights with one or more stops from R 16,748.
As of June 2025, there are no flights flying from Samui International to London.
The cheapest month to fly from Samui International to London is usually June.
If you're flying from Samui International Airport, the cheapest airport near London is London Heathrow – which is 22.9 km away from the centre of London. We've found flights into this airport from R 16,748.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Samui International Airport to London on Tuesday, 17 June 2025.
No airlines currently offer direct flights between Samui International Airport and London. 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 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.
In June, the average temperature is usually around 15°C. August is typically the warmest month in London, when it usually averages around 22°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 1°C. The rainiest month is October.
Currently, Bangkok Airways offers the cheapest flight tickets to London.

Travelling from Koh Samui Airport (USM) to London: what you need to know

  • The timezone in London is UTC+0. The city is seven hours behind Koh Samui, where Koh Samui Airport is located.

  • Leave enough time to make your USM to London flight. Generally, it's best to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Planning to travel during a peak time like public or school holidays? Expect longer queues at security and check-in. To give yourself peace of mind, arrive up to four hours before international flights and two hours ahead of domestic departures.

  • The distance from central Koh Samui to USM is around 3 kilometres. Use Google Maps for the quickest way to get there, whether you plan to drive or take public transport.

  • Catching an early flight from Koh Samui Airport to London? Avoid rushing to the airport (and catch some extra z's) by choosing one of these stays close to USM:

  • When it comes to Koh Samui Airport's on-time performance, 69.38% of flights complete their journey on time.

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

  • R 4,843 is currently the lowest price for a one-way Koh Samui Airport to London flight. Return flight tickets start at R 16,748. These prices can change based on availability.

  • Booking ahead of time is often the key to finding a cheap flight from USM to London. Fares tend to rise as seats fill up, so the closer your departure date, the more you'll likely pay.

  • Scoring cheap tickets from Koh Samui Airport to London is more likely if you're flexible with your travel plans. Use the 'Whole month' search function to access the lowest prices across every month and pick up an awesome deal.

  • Cut down on the time spent looking for cheap flights from USM to London by setting up a Price Alert. You'll get an email or notification through the app when a new low fare is offered.

  • Tailor your flights with filters. Choose your ideal arrival and departure times, airlines and total journey duration. You can also sort your results by 'Fastest,' 'Best' or 'Cheapest' flights from Koh Samui Airport to London.

Airports in London

London Heathrow Airport (LHR)

  • London Heathrow Airport (LHR) is around 31 kilometres from the centre of London. If you're catching a cab or a ride-share, the drive takes roughly 55 minutes.

  • It'll take around 1 hour to get there by public transport.

  • Book a hotel close to LHR if you're coming in on a late flight from Koh Samui Airport to London. Select one of these options and avoid the hassle of a long transfer:

  • Fast-track your adventure by picking up a London Heathrow Airport rental car. Grab your wheels from Surprice, U-Save or Green Motion and explore beyond London's usual tourist stops.

  • To secure the lowest price, reserve your ride from London Heathrow Airport around one week ahead of your flight from USM to London.

London Gatwick Airport (LGW)

  • Once your flight from Koh Samui Airport to London has arrived, you can make your way to the city centre in around 1 hour 20 minutes by car. Central London is roughly 80 kilometres from London Gatwick Airport (LGW).

  • Travelling by public transport will take around 30 minutes.

  • After stepping off your USM to London flight, unwind at a hotel close to LGW. These are some comfortable options that'll help you switch to relaxation mode:

  • No need to worry about public transport schedules or long cab lines. Grab a London Gatwick Airport rental car and take your journey in whatever direction you like. Compare offers from Green Motion, U-Save and Drivalia.

  • Avoid paying more than you need to. Booking your ride three weeks before your arrival at LGW will help you stay within budget.

Stansted Airport (STN)

  • Step off your flight from Koh Samui Airport to London and head straight for your hotel or start discovering the city right away. The centre of London is around 64 kilometres from Stansted Airport (STN) and typically takes 1 hour to reach driving.

  • The journey takes roughly 1 hour 25 minutes by public transport.

  • Enjoy a more relaxed start to your break by checking in to a hotel near STN after your USM to London flight. Recover from a day of travel or simply take a moment to get your footing in a new city at:

  • Take the guesswork out of the next leg of your trip by picking up a Stansted Airport rental car. Green Motion, Drivalia and Europcar are dependable companies for booking.

  • If you're looking for a vehicle with specific features, book your ride from STN about four weeks before your flight from Koh Samui Airport to London. This gives you a better chance of getting the car you prefer, as well as a better price.

Best time to go to London

  • Before locking in your flights from Koh Samui Airport to London, consider which time of year is best for you. High season in London offers a bustling atmosphere and plenty to do, while the low season brings cheaper hotel deals and smaller crowds.

  • Lock in a Koh Samui Airport to London flight ticket with a departure in July if you want to visit the city during its warmest month. Expect temperatures to range from 11ºC (52ºF) to 26ºC (79ºF).

  • If you want cooler conditions, search for a cheap ticket from USM to London in January when temperatures average between 0ºC (32ºF) and 9ºC (48ºF).

More about London

  • When it comes to searching for somewhere to rest your head, you'll find the most popular stays in London right here. Explore these hotels after you've booked your flight from Koh Samui Airport to London:

  • The British Museum and Big Ben are just two of the major attractions to put on your London travel itinerary. Keep the sightseeing going at Buckingham Palace.

Explore more of United Kingdom

  • You've done London, now it's time to explore other corners of United Kingdom. Journey about 161 kilometres north-west to Birmingham to check off its leading sights. From Cadbury World to The Library of Birmingham and National Sea Life Centre, you've got a jam-packed schedule ahead.

  • Around 177 kilometres west of London, Bristol is another favourite stop in United Kingdom. Experience the best of this destination with a visit to 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.