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Cheap flights from Koh Samui to London from £289

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Koh Samui to London departing on 6/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Koh Samui to London

Cheap return flights

These are some of the best return flight deals from Koh Samui to London that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Koh Samui to London.

Cheap last-minute flights

Planning a quick getaway from Koh Samui to London? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to London, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from Koh Samui to London

Find recent return train or bus tickets from Koh Samui to London.

All return flight deals to London

The cheapest plane tickets to London found on KAYAK recently.
08:55 - 06:55USM-LGW
29h 00m2 stops
06:35 - 18:20LGW-USM
28h 45m3 stops
Mi, 19 Feb - Mi, 26 Feb
08:55 - 06:45USM-LHR
28h 50m2 stops
09:00 - 18:30LHR-USM
26h 30m2 stops
Mi, 19 Feb - Mi, 26 Feb
09:15 - 21:45USM-LHR
18h 30m2 stops
17:30 - 21:10LHR-USM
21h 40m2 stops
Mo, 14 Apr - Mi, 8 Okt
08:55 - 11:40USM-LGW
33h 45m3 stops
09:40 - 18:30LGW-USM
25h 50m3 stops
Mi, 19 Feb - Mi, 26 Feb
10:55 - 06:40USM-LGW
25h 45m2 stops
09:00 - 10:30LGW-USM
19h 30m2 stops
£948Qatar Airways
Find Deal
Mo, 14 Apr - Mi, 8 Okt
11:45 - 19:10USM-LHR
38h 25m1 stop
10:55 - 08:00LHR-USM
38h 05m1 stop
£1,098Singapore Airlines
Find Deal
So, 26 Jan - Mi, 29 Jan
08:15 - 06:15USM-LHR
29h 00m1 stop
20:10 - 18:15LHR-USM
39h 05m1 stop
£1,204Qantas Airways
Find Deal
Sa, 22 Feb - Sa, 1 Mrz
21:30 - 19:20USM-LHR
28h 50m1 stop
21:20 - 19:50LHR-USM
15h 30m1 stop
£1,250EVA Air
Find Deal
So, 23 Feb - So, 2 Mrz
08:15 - 06:15USM-LHR
29h 00m1 stop
20:10 - 18:15LHR-USM
39h 05m1 stop
£1,288Qantas Airways
Find Deal
Sa, 22 Feb - Sa, 1 Mrz
09:00 - 06:25USM-LGW
27h 25m1 stop
10:15 - 11:15LGW-USM
19h 00m1 stop
£1,417Singapore Airlines
Find Deal
Mo, 14 Apr - Mi, 8 Okt
15:50 - 18:25USM-LHR
33h 35m2 stops
Do, 6 Mrz
15:25 - 19:10USM-LHR
33h 45m2 stops
Mo, 14 Apr
17:55 - 15:15USM-LHR
27h 20m2 stops
£439Etihad Airways
Find Deal
Sa, 21 Jun
16:25 - 12:25USM-LHR
26h 00m2 stops
£446Emirates
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Sa, 21 Jun
16:25 - 12:35USM-LGW
26h 10m2 stops
£446Emirates
Find Deal
Sa, 21 Jun
11:40 - 06:05USM-LGW
25h 25m2 stops
£468Qatar Airways
Find Deal
Do, 6 Mrz
10:55 - 06:40USM-LGW
25h 45m2 stops
£470Qatar Airways
Find Deal
Mo, 14 Apr
10:05 - 19:10USM-LHR
15h 05m1 stop
£479Thai Airways
Find Deal
Sa, 21 Jun
09:15 - 19:10USM-LHR
15h 55m1 stop
£823Thai Airways
Find Deal
Fr, 18 Apr
13:30 - 06:45USM-LHR
23h 15m2 stops
£853Etihad Airways
Find Deal
Fr, 18 Apr

Singapore Airlines flights from Koh Samui to London

Our best Singapore Airlines deals on Koh Samui to London flight tickets
Singapore Airlines
26 Jan
USM11:45Ko Samui
38h 25m
1 stop
LHR19:10London Heathrow
29 Jan
LHR10:55London Heathrow
38h 05m
1 stop
USM08:00Ko Samui
Singapore Airlines
14 Apr
USM09:00Ko Samui
27h 25m
1 stop
LGW06:25London Gatwick
8 Oct
LGW10:15London Gatwick
19h 00m
1 stop
USM11:15Ko Samui
Singapore Airlines
22 Feb
USM08:55Ko Samui
28h 25m
1 stop
LGW06:20London Gatwick
1 Mar
LGW09:20London Gatwick
26h 10m
1 stop
USM18:30Ko Samui

Qantas Airways flights from Koh Samui to London

Our best Qantas Airways deals on Koh Samui to London flight tickets
Qantas Airways
22 Feb
USM08:15Ko Samui
29h 00m
1 stop
LHR06:15London Heathrow
1 Mar
LHR20:10London Heathrow
39h 05m
1 stop
USM18:15Ko Samui
Qantas Airways
22 Feb
USM08:15Ko Samui
29h 00m
1 stop
LHR06:15London Heathrow
1 Mar
LHR20:10London Heathrow
39h 05m
1 stop
USM18:15Ko Samui

See travel insights to London from

How to get the cheapest flight ticket from Koh Samui to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to London?

The cheapest month to fly to London from Koh Samui is in October. Flight prices, which tend to average around £519, are often lower during this time because this is during the off-season. The month of April is another great option to travel to London, with average flight prices from Koh Samui averaging around £579.

What is the cheapest day to depart on your flight to London?

Our data shows that Tuesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £0. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Koh Samui to London for around £1,097.

What is the cheapest time of day to depart on your flight to London?

The cheapest time of day to fly to London is at midday when flights can be purchased for as low as £0. Flights in the evening are often more expensive, with an average ticket price of £1,095.

How have Koh Samui to London flight prices changed over time?

As of January 2025, prices for Koh Samui to London flights are approximately 6% more expensive when compared to flights at the same time last year.

When to book flights from Koh Samui to London

Are you open to changing your travel dates? Check out the ideal times to fly from Koh Samui to London according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Koh Samui to London (USM to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Koh Samui to London

Best price found

£289

Fastest flight time

15h 05m

Direct flights

None

Airports in London

3 airports
The best one-way flight to London from Koh Samui in the past 72 hours is £289. The best return flight deal from Koh Samui to London found on momondo in the last 72 hours is £738.
The fastest flight from Koh Samui to London takes 15h 05m
There are no direct flights from Koh Samui to London. Popular non-direct routes for this connection are Ko Samui Airport - London Gatwick Airport, Ko Samui Airport - London Heathrow Airport and Ko Samui Airport - London City Airport.
There are 3 airports near London: London City (LCY), London Heathrow (LHR), London Gatwick (LGW)

  • How far is Ko Samui to London by plane?

    The straight-line distance from Ko Samui to London is 6131.1 mi. Typically, this will take 16h 40m by plane in normal conditions.

  • When did momondo last update prices for flights from Ko Samui Airport to London?

    Prices for flights from Ko Samui Airport to London are refreshed on a daily basis.

  • How old do you have to be to fly from Ko Samui Airport to London?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ko Samui Airport to London.

  • What documentation or ID do you need to fly to London?

    The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Koh Samui to London?


Why use momondo?

Why should I use momondo to find a flight deal from Koh Samui to London?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Koh Samui to London . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Koh Samui to London with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Koh Samui to London flights to just show those with flexible booking policies.

How can momondo help me find flights from Koh Samui to London?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Koh Samui to London.

I’m not ready to book a flight from Koh Samui to London right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Koh Samui to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London