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

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

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

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 Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£243 Cheap Flights from Ko Samui to London Heathrow Airport in 2026

Find the cheapest flights from Ko Samui to London

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

19:00 - 11:30

USM

LHR

22h 30m

2 stops

14:00 - 20:50

LHR

USM

24h 50m

2 stops

£737Multiple Airlines

Thu, 10 Sep - Thu, 17 Sep

11:25 - 11:30

USM

LHR

30h 05m

2 stops

10:00 - 12:45

LHR

USM

20h 45m

2 stops

£811Multiple Airlines

Tue, 8 Sep - Tue, 15 Sep

15:20 - 06:55

USM

LHR

21h 35m

2 stops

22:05 - 17:05

LHR

USM

37h 00m

2 stops

£817Gulf Air

Tue, 15 Sep - Tue, 6 Oct

15:50 - 06:55

USM

LHR

21h 05m

2 stops

22:05 - 15:10

LHR

USM

35h 05m

2 stops

£821Gulf Air

Tue, 15 Sep - Tue, 6 Oct

15:50 - 06:55

USM

LHR

21h 05m

2 stops

10:00 - 15:10

LHR

USM

23h 10m

2 stops

£868Gulf Air

Tue, 15 Sep - Tue, 6 Oct

15:50 - 06:55

USM

LHR

21h 05m

2 stops

10:00 - 15:10

LHR

USM

23h 10m

2 stops

£873Gulf Air

Tue, 15 Sep - Tue, 6 Oct

19:00 - 12:05

USM

LHR

23h 05m

2 stops

20:35 - 08:25

LHR

USM

29h 50m

2 stops

£892Multiple Airlines

Wed, 26 Aug - Wed, 2 Sep

06:00 - 19:15

USM

LHR

19h 15m

1 stop

22:40 - 07:10

LHR

USM

26h 30m

2 stops

£898Multiple Airlines

Tue, 8 Sep - Tue, 15 Sep

06:00 - 19:15

USM

LHR

19h 15m

1 stop

22:40 - 07:10

LHR

USM

26h 30m

2 stops

£900Multiple Airlines

Thu, 10 Sep - Thu, 17 Sep

17:55 - 11:30

USM

LHR

23h 35m

2 stops

09:45 - 14:40

LHR

USM

22h 55m

2 stops

£916Multiple Airlines

Tue, 1 Sep - Fri, 11 Sep

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Emirates flights from Ko Samui to London Heathrow Airport

Our best Emirates deals on Ko Samui to London Heathrow Airport flight tickets

Emirates

26 Oct

USM16:25Ko Samui

26h 15m

2 stops

LHR11:40London Heathrow

31 Oct

LHR13:40London Heathrow

24h 25m

2 stops

USM21:05Ko Samui

£929

Emirates

4 Oct

USM16:25Ko Samui

26h 00m

2 stops

LHR12:25London Heathrow

7 Oct

LHR14:25London Heathrow

24h 45m

2 stops

USM21:10Ko Samui

£943

Emirates

1 Oct

USM19:00Ko Samui

25h 25m

2 stops

LHR14:25London Heathrow

15 Oct

LHR16:50London Heathrow

22h 45m

2 stops

USM21:35Ko Samui

£987

Qatar Airways flights from Ko Samui to London Heathrow Airport

Our best Qatar Airways deals on Ko Samui to London Heathrow Airport flight tickets

Qatar Airways

26 Oct

USM15:50Ko Samui

21h 35m

2 stops

LHR06:25London Heathrow

28 Oct

LHR09:25London Heathrow

18h 15m

2 stops

USM10:40Ko Samui

£1,001

Qatar Airways

26 Oct

USM15:50Ko Samui

21h 35m

2 stops

LHR06:25London Heathrow

28 Oct

LHR09:25London Heathrow

18h 15m

2 stops

USM10:40Ko Samui

£1,003

Qatar Airways

26 Oct

USM15:05Ko Samui

23h 55m

2 stops

LHR08:00London Heathrow

28 Oct

LHR13:50London Heathrow

18h 05m

2 stops

USM14:55Ko Samui

£1,020

momondo Fare Finder

Use the filters below to find and compare flights from Ko Samui to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Thu 10/9

19:00-11:30

2 stops22h 30m

London Heathrow

Thu 17/9

14:00-20:50

2 stops24h 50m

£737

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 8/9

11:25-11:30

2 stops30h 05m

London Heathrow

Tue 15/9

10:00-12:45

2 stops20h 45m

£811

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 15/9

15:20-06:55

2 stops21h 35m

London Heathrow

Tue 6/10

22:05-17:05

2 stops37h 00m

£817

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 15/9

15:50-06:55

2 stops21h 05m

London Heathrow

Tue 6/10

22:05-15:10

2 stops35h 05m

£821

Fastest return journey

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 15/9

15:50-06:55

2 stops21h 05m

London Heathrow

Tue 6/10

10:00-15:10

2 stops23h 10m

£868

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 15/9

15:50-06:55

2 stops21h 05m

London Heathrow

Tue 6/10

10:00-15:10

2 stops23h 10m

£873

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Wed 26/8

19:00-12:05

2 stops23h 05m

London Heathrow

Wed 2/9

20:35-08:25

2 stops29h 50m

£892

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 8/9

06:00-19:15

1 stop19h 15m

London Heathrow

Tue 15/9

22:40-07:10

2 stops26h 30m

£898

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Thu 10/9

06:00-19:15

1 stop19h 15m

London Heathrow

Thu 17/9

22:40-07:10

2 stops26h 30m

£900

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 1/9

17:55-11:30

2 stops23h 35m

London Heathrow

Fri 11/9

09:45-14:40

2 stops22h 55m

£916

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ko Samui to London Heathrow Airport

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

Can stopping save me money on Ko Samui to London Heathrow Airport flights?

You could potentially save up to 23% on your flight if you consider stops on a Ko Samui to London Heathrow Airport flight.

How have Ko Samui to London Heathrow Airport flight prices changed over time?

When to book flights from Ko Samui to London Heathrow Airport

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

Estimated return price

Cheap Ko Samui to London Heathrow Airport (USM to LHR) flight deals and tips

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

Fastest flight time	21h 05m
Direct flights	None

The fastest flight from Ko Samui to London Heathrow Airport takes 21h 05m

There are no direct flights from Ko Samui to London Heathrow Airport. There are no popular flight routes from Ko Samui to London Heathrow Airport.

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Frequently asked questions about flying from Ko Samui to London Heathrow Airport

How far is Ko Samui to London Heathrow by plane?
The straight-line distance from Ko Samui to London Heathrow is 6145.4 mi. Typically, this will take 21h 05m by plane in normal conditions.
When did momondo last update prices for flights from Ko Samui Airport to London Heathrow Airport?
Prices for flights from Ko Samui Airport to London Heathrow Airport are refreshed on a daily basis.
How old do you have to be to fly from Ko Samui Airport to London Heathrow Airport?
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 Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ko Samui to London. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to London from Ko Samui with this policy.

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

Once you have performed a search for Ko Samui to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to London from Ko Samui are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.