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.

£258 Cheap Flights from Ko Samui to London Heathrow Airport in 2026/27

Find the cheapest flights from Ko Samui to London

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

17:40 - 11:30USM Ko Samui-LHR London Heathrow

24h 50m2 stops Bangkok Suvarnabhumi New Delhi Indira Gandhi Intl

21:00 - 09:20LHR London Heathrow-USM Ko Samui

29h 20m2 stops Shanghai Pu Dong Bangkok Suvarnabhumi

£747Multiple Airlines

Thu, 17 Dec - Wed, 20 Jan

21:10 - 12:05USM Ko Samui-LHR London Heathrow

21h 55m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

16:30 - 20:25LHR London Heathrow-USM Ko Samui

20h 55m3 stops Rome Fiumicino Abu Dhabi Zayed Intl Bangkok Suvarnabhumi

£753Multiple Airlines

Thu, 17 Dec - Wed, 20 Jan

18:30 - 11:30USM Ko Samui-LHR London Heathrow

24h 00m2 stops Bangkok Suvarnabhumi New Delhi Indira Gandhi Intl

21:20 - 20:25LHR London Heathrow-USM Ko Samui

16h 05m1 stop Bangkok Suvarnabhumi

£832Multiple Airlines

Thu, 17 Dec - Wed, 20 Jan

21:10 - 17:00USM Ko Samui-LHR London Heathrow

26h 50m2 stops Bangkok Suvarnabhumi Stockholm Arlanda

14:45 - 20:25LHR London Heathrow-USM Ko Samui

22h 40m3 stops Paris Charles de Gaulle Abu Dhabi Zayed Intl Bangkok Suvarnabhumi

£847Multiple Airlines

Mon, 7 Dec - Mon, 14 Dec

19:00 - 12:05USM Ko Samui-LHR London Heathrow

24h 05m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

20:55 - 21:20LHR London Heathrow-USM Ko Samui

17h 25m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi

£874Etihad Airways

Thu, 17 Dec - Wed, 20 Jan

12:15 - 06:35USM Ko Samui-LHR London Heathrow

25h 20m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

09:30 - 15:40LHR London Heathrow-USM Ko Samui

23h 10m2 stops Manama Bahrain Intl Bangkok Suvarnabhumi

£880Multiple Airlines

Thu, 17 Dec - Wed, 20 Jan

21:10 - 12:05USM Ko Samui-LHR London Heathrow

21h 55m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

08:40 - 10:35LHR London Heathrow-USM Ko Samui

18h 55m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi

£895Etihad Airways

Mon, 7 Dec - Mon, 14 Dec

19:00 - 12:05USM Ko Samui-LHR London Heathrow

24h 05m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

20:55 - 21:20LHR London Heathrow-USM Ko Samui

17h 25m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi

£897Etihad Airways

Thu, 17 Dec - Wed, 20 Jan

17:05 - 12:05USM Ko Samui-LHR London Heathrow

26h 00m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

21:20 - 20:25LHR London Heathrow-USM Ko Samui

16h 05m1 stop Bangkok Suvarnabhumi

£945Multiple Airlines

Thu, 17 Dec - Wed, 20 Jan

08:30 - 19:35USM Ko Samui-LHR London Heathrow

18h 05m1 stop Bangkok Suvarnabhumi

22:00 - 07:35LHR London Heathrow-USM Ko Samui

26h 35m2 stops Guangzhou Baiyun Bangkok Suvarnabhumi

£955Multiple Airlines

Wed, 3 Mar - Wed, 3 Mar

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Thai Airways flights from Ko Samui to London Heathrow Airport

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

Thai Airways

3 Mar

USM07:55Ko Samui

18h 40m

1 stop

LHR19:35London Heathrow

3 Mar

LHR21:35London Heathrow

15h 15m

1 stop

USM19:50Ko Samui

£995

Thai Airways

10 Dec

USM20:30Ko Samui

30h 05m

1 stop

LHR19:35London Heathrow

17 Dec

LHR21:35London Heathrow

28h 45m

1 stop

USM09:20Ko Samui

£1,034

Thai Airways

7 Dec

USM17:40Ko Samui

32h 55m

1 stop

LHR19:35London Heathrow

14 Dec

LHR21:35London Heathrow

32h 30m

1 stop

USM13:05Ko Samui

£1,037

Etihad Airways flights from Ko Samui to London Heathrow Airport

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

Etihad Airways

17 Dec

USM19:00Ko Samui

24h 05m

2 stops

LHR12:05London Heathrow

20 Jan

LHR20:55London Heathrow

17h 25m

2 stops

USM21:20Ko Samui

£874

Etihad Airways

5 Nov

USM15:50Ko Samui

27h 15m

2 stops

LHR12:05London Heathrow

9 Nov

LHR13:55London Heathrow

20h 35m

2 stops

USM17:30Ko Samui

£892

Etihad Airways

7 Dec

USM21:10Ko Samui

21h 55m

2 stops

LHR12:05London Heathrow

14 Dec

LHR08:40London Heathrow

18h 55m

2 stops

USM10:35Ko Samui

£895

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 Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Thu 17/12

17:40-11:30

2 stops24h 50m

London Heathrow

Wed 20/1

21:00-09:20

2 stops29h 20m

£747

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Thu 17/12

21:10-12:05

2 stops21h 55m

London Heathrow

Wed 20/1

16:30-20:25

3 stops20h 55m

£753

Fastest return journey

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Thu 17/12

18:30-11:30

2 stops24h 00m

London Heathrow

Wed 20/1

21:20-20:25

1 stop16h 05m

£832

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Mon 7/12

21:10-17:00

2 stops26h 50m

London Heathrow

Mon 14/12

14:45-20:25

3 stops22h 40m

£847

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Thu 17/12

19:00-12:05

2 stops24h 05m

London Heathrow

Wed 20/1

20:55-21:20

2 stops17h 25m

£874

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Thu 17/12

12:15-06:35

2 stops25h 20m

London Heathrow

Wed 20/1

09:30-15:40

2 stops23h 10m

£880

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Mon 7/12

21:10-12:05

2 stops21h 55m

London Heathrow

Mon 14/12

08:40-10:35

2 stops18h 55m

£895

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Thu 17/12

19:00-12:05

2 stops24h 05m

London Heathrow

Wed 20/1

20:55-21:20

2 stops17h 25m

£897

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Thu 17/12

17:05-12:05

2 stops26h 00m

London Heathrow

Wed 20/1

21:20-20:25

1 stop16h 05m

£945

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Wed 3/3

08:30-19:35

1 stop18h 05m

London Heathrow

Wed 3/3

22:00-07:35

2 stops26h 35m

£955

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 21% 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

Best price found	£258
Fastest flight time	19h 20m
Direct flights	None

The best one-way flight to London Heathrow Airport from Ko Samui in the past 72 hours is £258. The best return flight deal from Ko Samui to London Heathrow Airport found on momondo in the last 72 hours is £747.

The fastest flight from Ko Samui to London Heathrow Airport takes 19h 20m

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.

Search flight deals

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 19h 20m 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.