Cheap Flights from Samui International to London

Compare Samui International to London flight deals

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

Book the best London fare with no extra fees

Flight deals from Samui International Airport to London

Looking for a cheap last-minute deal or the best return flight from Samui International Airport to London? If you want to travel next month, return fares start from $1,911. Find the lowest prices on one-way and return tickets right here.

London.$1,862 per passenger.Departing Sun, 24 May, returning Fri, 12 Jun.Return flight with Bangkok Airways and Gulf Air.Outbound indirect flight with Bangkok Airways, departs from Samui International on Sun, 24 May, arriving in London Heathrow.Inbound indirect flight with Gulf Air, departs from London Gatwick on Fri, 12 Jun, arriving in Samui International.Price includes taxes and charges.From $1,862, select.

London.$1,911 per passenger.Departing Thu, 7 May, returning Wed, 13 May.Return flight with Gulf Air.Outbound indirect flight with Gulf Air, departs from Samui International on Thu, 7 May, arriving in London Gatwick.Inbound indirect flight with Gulf Air, departs from London Gatwick on Wed, 13 May, arriving in Samui International.Price includes taxes and charges.From $1,911, select.

London.$2,122 per passenger.Departing Sun, 1 Nov, returning Sun, 15 Nov.Return flight with Bangkok Airways and Air India.Outbound indirect flight with Bangkok Airways, departs from Samui International on Sun, 1 Nov, arriving in London Heathrow.Inbound indirect flight with Air India, departs from London Heathrow on Sun, 15 Nov, arriving in Samui International.Price includes taxes and charges.From $2,122, select.

London.$2,160 per passenger.Departing Sun, 12 Jul, returning Fri, 4 Sep.Return flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Samui International on Sun, 12 Jul, arriving in London Heathrow.Inbound indirect flight with Qatar Airways, departs from London Heathrow on Fri, 4 Sep, arriving in Samui International.Price includes taxes and charges.From $2,160, select.

London.$2,185 per passenger.Departing Thu, 9 Apr, returning Thu, 16 Apr.Return flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Samui International on Thu, 9 Apr, arriving in London Heathrow.Inbound indirect flight with Qatar Airways, departs from London Heathrow on Thu, 16 Apr, arriving in Samui International.Price includes taxes and charges.From $2,185, select.

London.$2,185 per passenger.Departing Mon, 27 Apr, returning Mon, 4 May.Return flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Samui International on Mon, 27 Apr, arriving in London Heathrow.Inbound indirect flight with Qatar Airways, departs from London Heathrow on Mon, 4 May, arriving in Samui International.Price includes taxes and charges.From $2,185, select.

London.$2,185 per passenger.Departing Tue, 2 Jun, returning Tue, 16 Jun.Return flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Samui International on Tue, 2 Jun, arriving in London Heathrow.Inbound indirect flight with Qatar Airways, departs from London Heathrow on Tue, 16 Jun, arriving in Samui International.Price includes taxes and charges.From $2,185, select.

London.$2,200 per passenger.Departing Tue, 2 Jun, returning Mon, 6 Jul.Return flight with Bangkok Airways and Qatar Airways.Outbound indirect flight with Bangkok Airways, departs from Samui International on Tue, 2 Jun, arriving in London Heathrow.Inbound indirect flight with Qatar Airways, departs from London Heathrow on Mon, 6 Jul, arriving in Samui International.Price includes taxes and charges.From $2,200, select.

London.$2,231 per passenger.Departing Sat, 25 Jul, returning Wed, 19 Aug.Return flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Samui International on Sat, 25 Jul, arriving in London Heathrow.Inbound indirect flight with Qatar Airways, departs from London Heathrow on Wed, 19 Aug, arriving in Samui International.Price includes taxes and charges.From $2,231, select.

London.$2,260 per passenger.Departing Wed, 24 Jun, returning Wed, 5 Aug.Return flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Samui International on Wed, 24 Jun, arriving in London Gatwick.Inbound indirect flight with Qatar Airways, departs from London Heathrow on Wed, 5 Aug, arriving in Samui International.Price includes taxes and charges.From $2,260, select.

London.$2,292 per passenger.Departing Tue, 1 Dec, returning Mon, 14 Dec.Return flight with Bangkok Airways and Kuwait Airways.Outbound indirect flight with Bangkok Airways, departs from Samui International on Tue, 1 Dec, arriving in London Heathrow.Inbound indirect flight with Kuwait Airways, departs from London Heathrow on Mon, 14 Dec, arriving in Samui International.Price includes taxes and charges.From $2,292, select.

London.$2,361 per passenger.Departing Tue, 14 Jul, returning Tue, 28 Jul.Return flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Samui International on Tue, 14 Jul, arriving in London Heathrow.Inbound indirect flight with Qatar Airways, departs from London Heathrow on Tue, 28 Jul, arriving in Samui International.Price includes taxes and charges.From $2,361, select.

London.$2,396 per passenger.Departing Tue, 4 Aug, returning Wed, 19 Aug.Return flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Samui International on Tue, 4 Aug, arriving in London Heathrow.Inbound indirect flight with Qatar Airways, departs from London Heathrow on Wed, 19 Aug, arriving in Samui International.Price includes taxes and charges.From $2,396, select.

London.$2,425 per passenger.Departing Wed, 26 Aug, returning Sat, 12 Sep.Return flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Samui International on Wed, 26 Aug, arriving in London Heathrow.Inbound indirect flight with Qatar Airways, departs from London Gatwick on Sat, 12 Sep, arriving in Samui International.Price includes taxes and charges.From $2,425, select.

London.$2,466 per passenger.Departing Tue, 21 Apr, returning Wed, 24 Mar.Return flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Samui International on Tue, 21 Apr, arriving in London Heathrow.Inbound indirect flight with Qatar Airways, departs from London Gatwick on Wed, 24 Mar, arriving in Samui International.Price includes taxes and charges.From $2,466, select.

London.$5,600 per passenger.Departing Tue, 1 Sep, returning Sat, 12 Sep.Return flight with Condor.Outbound indirect flight with Condor, departs from Samui International on Tue, 1 Sep, arriving in London Heathrow.Inbound indirect flight with Condor, departs from London Heathrow on Sat, 12 Sep, arriving in Samui International.Price includes taxes and charges.From $5,600, select.

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 May.

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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 found	$607
Cheapest month to fly	November

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

How many airports are there in London?

There are 6 airports in London: London City, London Heathrow, London Gatwick, London Luton, London Stansted, and London Southend.

How much are return flights from Samui International to London?

The best price we found for a return flight from Samui International to London is $1,862. 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.

Which airlines fly direct from Samui International to London?

Currently, there are no airlines that fly direct from Samui International to London. But we found flights with one or more stops from $1,862.

How many flights are there a week from Samui International to London?

As of April 2026, there are no flights flying from Samui International to London.

When is the cheapest time to fly from Samui International to London?

The cheapest month to fly from Samui International to London is usually May.

Which is the cheapest airport to fly into in London?

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 $1,862.

Which upcoming date is cheapest to fly from Samui International Airport to London on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Samui International Airport to London on Sunday, 24 May 2026.

Can I get a direct flight from Samui International Airport to London?

No airlines currently offer direct flights between Samui International Airport and London. Most routes have one or more stops.

How can I get the best flight deal from Samui International Airport to London?

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.

When is the best time to book flights to London?

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.

What’s the weather like in London?

In April, the average temperature is usually around 9°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.

Which is the cheapest airline to fly from Samui International Airport to London with?

Currently, Bangkok Airways offers the cheapest flight tickets to London.

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

Ko Samui International Airport is located in Koh Samui. Based in the UTC+0 timezone, London is seven hours behind Koh Samui.
To avoid missing your USM to London flight, allow plenty of time to check in and drop off your luggage. Turning up two hours ahead of international departures and an hour before domestic flights is the general travel rule.
You'll likely experience longer queues in popular months such as November. Arriving up to four hours ahead of an international flight and two hours for domestic departures is a good idea.
USM is about 3 kilometres from central Koh Samui. If you're driving, ride-sharing or catching a taxi from the centre, it'll take you 20 minutes or so to get there, depending on traffic. If you're using public transport, expect the trip time to be around 30 minutes.
Want a relaxed start to your trip? Stay near USM. Whether you've booked an early flight from Ko Samui International Airport to London or just don't like being rushed, these hotels are a convenient choice:
Ko Samui International Airport earns top marks for on-time performance. 83% of flights that take off from USM reach their destination without delay.

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

$607 is the cheapest price we've seen for a one-way Ko Samui International Airport to London flight. A round-trip plane ticket right now is $1,862. Depending on how early you book and the availability, these fares could change.
To find cheap flights from USM to London, book ahead. Airlines typically offer the most competitive fares when tickets first go on sale.
If you have flexibility with your travel plans, take advantage of the 'Whole month' tool. It'll give you the lowest price across each month when looking for your Ko Samui International Airport to London ticket.
You don't need to check every day to see if fares have dropped when you set up a Price Alert. We'll let you know as soon as there's an even bigger deal on cheap flights from USM to London.
Tailor your trip with filters. Select your arrival and departure times, total journey duration and airlines. You can also sort results by 'Best,' 'Fastest' or 'Cheapest' flights from Ko Samui International Airport to London.

Airports in London

London Heathrow Airport (LHR)

The distance from London Heathrow Airport (LHR) to central London is roughly 24 kilometres. It'll take you around 45 minutes to get to the centre driving.
It takes around 25 minutes to get there by public transport.
If you're coming in on a late flight from Ko Samui International Airport to London, few things beat the convenience of staying close to the terminal. Grab your luggage from the carousel and then be showered and sleeping not long after at one of these hotels near LHR:
Lock in the best rate by reserving your ride from London Heathrow Airport about one week before your flight from USM to London.

London Gatwick Airport (LGW)

Central London is located around 48 kilometres from London Gatwick Airport (LGW). After your flight from Ko Samui International Airport to London has landed and you've navigated your way to arrivals, the drive should be around 1 hour 5 minutes.
You can expect the journey to take about 1 hour 20 minutes on public transport.
There are some comfortable places to call home for the night near LGW. Tuck yourself in and get cosy after your USM to London flight at one of these perfectly located options:
Score the best price by securing your ride from LGW three weeks in advance. You can also expect to have a greater selection of vehicles.

London Stansted Airport (STN)

Hop off your flight from Ko Samui International Airport to London and go straight to your hotel or start exploring right away. Central London is around 56 kilometres from London Stansted Airport (STN) and usually takes 1 hour 5 minutes to reach driving.
If you go by public transport, the journey will take you around 45 minutes.
Enjoy a more relaxed start to your break by choosing a hotel near STN after your USM to London flight. Recover from a day of travel or just give yourself time to settle into a new destination at:
About four weeks ahead of your flight from Ko Samui International Airport to London is a good time to book your ride from STN. You're likely to snag a better deal or even pick up some early bird discounts.

Best time to go to London

It's time to choose your trip dates for your flight from Ko Samui International Airport to London. July is the busiest month to visit London. If you like a quieter vibe, go in January.
Book a Ko Samui International Airport to London plane ticket with a departure in July if you want to visit the city during its warmest month. Expect temperatures to range from 11ºC to 26ºC.
January sees average temperatures of between 0ºC and 9ºC. Search for a cheap ticket from USM to London around that time if you'd rather travel in cooler conditions.

More about London

When it comes to looking for somewhere to rest your head, you'll find the top stays in London right here. Check out these hotels after you've booked your flight from Ko Samui International Airport to London:
Westminster Abbey and The British Museum are just two of the top-rated attractions to add to your London must-do list. Keep the momentum going by heading to Big Ben.

Explore more of the United Kingdom

Manchester is just one of the many places in the United Kingdom waiting to be discovered once you've taken in the sights of London. Around 257 kilometres away to the northwest, popular attractions include Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.
Around 161 kilometres northwest of London, Birmingham is another favourite stop in the United Kingdom. Experience major highlights starting with Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience.