What is the cheapest airline that flies from Ko Samui to London Heathrow?

Etihad Airways is the most popular carrier operating from Ko Samui to London Heathrow

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.

£310 Cheap Flights from Ko Samui to London Heathrow Airport in 2026

Find the cheapest flights from Ko Samui to London

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

12:25 - 06:40USM Ko Samui-LHR London Heathrow

25h 15m2 stops Krabi Abu Dhabi Zayed Intl

06:00 - 11:30LHR London Heathrow-USM Ko Samui

22h 30m3 stops Vienna Intl Sharjah Bangkok Suvarnabhumi

£672Multiple Airlines

Sun, 25 Oct - Sun, 1 Nov

17:05 - 11:05USM Ko Samui-LHR London Heathrow

25h 00m2 stops Bangkok Suvarnabhumi Mumbai Chhatrapati Shivaji Intl

13:30 - 17:00LHR London Heathrow-USM Ko Samui

20h 30m2 stops Mumbai Chhatrapati Shivaji Intl Bangkok Suvarnabhumi

£740Multiple Airlines

Mon, 8 Mar - Thu, 11 Mar

13:25 - 14:45USM Ko Samui-LHR London Heathrow

32h 20m2 stops Singapore Changi Manama Bahrain Intl

08:25 - 10:35LHR London Heathrow-USM Ko Samui

19h 10m2 stops Muscat Seeb Bangkok Suvarnabhumi

£757Multiple Airlines

Sun, 25 Oct - Sun, 1 Nov

17:25 - 15:20USM Ko Samui-LHR London Heathrow

27h 55m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

10:00 - 15:25LHR London Heathrow-USM Ko Samui

23h 25m2 stops Manama Bahrain Intl Bangkok Suvarnabhumi

£776Multiple Airlines

Wed, 30 Sep - Thu, 8 Oct

11:05 - 07:00USM Ko Samui-LHR London Heathrow

25h 55m3 stops Singapore Changi Kuala Lumpur Intl Abu Dhabi Zayed Intl

21:45 - 10:10LHR London Heathrow-USM Ko Samui

30h 25m3 stops Abu Dhabi Zayed Intl Kuala Lumpur Intl Singapore Changi

£782Multiple Airlines

Tue, 13 Oct - Tue, 20 Oct

13:30 - 07:00USM Ko Samui-LHR London Heathrow

23h 30m2 stops Singapore Changi Abu Dhabi Zayed Intl

16:35 - 21:35LHR London Heathrow-USM Ko Samui

23h 00m3 stops Athens Eleftherios V. Sharjah Bangkok Suvarnabhumi

£785Multiple Airlines

Tue, 13 Oct - Tue, 20 Oct

19:00 - 06:30USM Ko Samui-LHR London Heathrow

17h 30m2 stops Phuket City Doha Hamad Intl

08:35 - 07:10LHR London Heathrow-USM Ko Samui

39h 35m2 stops Doha Hamad Intl Bangkok Suvarnabhumi

£827Multiple Airlines

Mon, 19 Oct - Mon, 2 Nov

13:25 - 14:45USM Ko Samui-LHR London Heathrow

32h 20m2 stops Singapore Changi Manama Bahrain Intl

08:25 - 11:30LHR London Heathrow-USM Ko Samui

20h 05m2 stops Muscat Seeb Bangkok Suvarnabhumi

£840Multiple Airlines

Wed, 28 Oct - Wed, 4 Nov

21:00 - 07:15USM Ko Samui-LHR London Heathrow

16h 15m1 stop Bangkok Suvarnabhumi

22:00 - 07:10LHR London Heathrow-USM Ko Samui

27h 10m2 stops Shenzhen Bangkok Suvarnabhumi

£863Multiple Airlines

Tue, 13 Oct - Tue, 20 Oct

20:35 - 12:45USM Ko Samui-LHR London Heathrow

22h 10m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

21:45 - 07:10LHR London Heathrow-USM Ko Samui

27h 25m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi

£880Etihad Airways

Tue, 13 Oct - Tue, 20 Oct

Cheap last-minute flights

Enter your travel dates to find the best prices.

13:50 - 19:10USM Ko Samui-LHR London Heathrow

35h 20m2 stops Bangkok Suvarnabhumi Muscat Seeb

20:50 - 11:55LHR London Heathrow-USM Ko Samui

33h 05m2 stops Muscat Seeb Phuket City

£844Oman Air

Tue, 15 Sep - Tue, 6 Oct

13:50 - 19:10USM Ko Samui-LHR London Heathrow

35h 20m2 stops Bangkok Suvarnabhumi Muscat Seeb

20:50 - 11:55LHR London Heathrow-USM Ko Samui

33h 05m2 stops Muscat Seeb Phuket City

£846Oman Air

Tue, 15 Sep - Tue, 6 Oct

14:00 - 13:15USM Ko Samui-LHR London Heathrow

29h 15m2 stops Bangkok Suvarnabhumi Doha Hamad Intl

15:05 - 16:30LHR London Heathrow-USM Ko Samui

19h 25m2 stops Doha Hamad Intl Bangkok Suvarnabhumi

£874Multiple Airlines

Tue, 15 Sep - Tue, 6 Oct

15:25 - 06:30USM Ko Samui-LHR London Heathrow

21h 05m2 stops Phuket City Doha Hamad Intl

09:30 - 20:25LHR London Heathrow-USM Ko Samui

28h 55m2 stops Doha Hamad Intl Phuket City

£896Qatar Airways

Tue, 15 Sep - Tue, 6 Oct

17:55 - 06:30USM Ko Samui-LHR London Heathrow

18h 35m2 stops Phuket City Doha Hamad Intl

09:30 - 11:05LHR London Heathrow-USM Ko Samui

19h 35m2 stops Doha Hamad Intl Bangkok Suvarnabhumi

£897Qatar Airways

Tue, 15 Sep - Tue, 6 Oct

20:35 - 12:45USM Ko Samui-LHR London Heathrow

22h 10m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

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

23h 40m2 stops Abu Dhabi Zayed Intl Phuket City

£905Etihad Airways

Wed, 16 Sep - Sun, 20 Sep

17:55 - 08:00USM Ko Samui-LHR London Heathrow

20h 05m2 stops Phuket City Doha Hamad Intl

08:25 - 11:55LHR London Heathrow-USM Ko Samui

21h 30m2 stops Doha Hamad Intl Phuket City

£996Qatar Airways

Tue, 15 Sep - Sat, 19 Sep

08:45 - 19:20USM Ko Samui-LHR London Heathrow

16h 35m1 stop Bangkok Suvarnabhumi

21:35 - 20:50LHR London Heathrow-USM Ko Samui

17h 15m1 stop Bangkok Suvarnabhumi

£1,002EVA Air

Wed, 16 Sep - Sun, 20 Sep

09:15 - 19:20USM Ko Samui-LHR London Heathrow

16h 05m1 stop Bangkok Suvarnabhumi

21:35 - 20:30LHR London Heathrow-USM Ko Samui

16h 55m1 stop Bangkok Suvarnabhumi

£1,003EVA Air

Tue, 15 Sep - Tue, 6 Oct

09:15 - 19:20USM Ko Samui-LHR London Heathrow

16h 05m1 stop Bangkok Suvarnabhumi

21:35 - 20:30LHR London Heathrow-USM Ko Samui

16h 55m1 stop Bangkok Suvarnabhumi

£1,005Multiple Airlines

Tue, 15 Sep - Tue, 6 Oct

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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

21h 45m

2 stops

LHR07:10London Heathrow

2 Nov

LHR13:40London Heathrow

24h 25m

2 stops

USM21:05Ko Samui

£919

Emirates

22 Dec

USM18:15Ko Samui

24h 25m

2 stops

LHR11:40London Heathrow

6 Jan

LHR13:40London Heathrow

24h 40m

2 stops

USM21:20Ko Samui

£1,008

Emirates

24 Dec

USM08:30Ko Samui

29h 40m

2 stops

LHR07:10London Heathrow

6 Jan

LHR19:00London Heathrow

43h 20m

2 stops

USM21:20Ko Samui

£1,011

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

13 Oct

USM20:35Ko Samui

22h 10m

2 stops

LHR12:45London Heathrow

20 Oct

LHR21:45London Heathrow

27h 25m

2 stops

USM07:10Ko Samui

£880

Etihad Airways

16 Sept

USM20:35Ko Samui

22h 10m

2 stops

LHR12:45London Heathrow

20 Sept

LHR14:45London Heathrow

23h 40m

2 stops

USM20:25Ko Samui

£905

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

Sun 25/10

12:25-06:40

2 stops25h 15m

London Heathrow

Sun 1/11

06:00-11:30

3 stops22h 30m

£672

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Mon 8/3

17:05-11:05

2 stops25h 00m

London Heathrow

Thu 11/3

13:30-17:00

2 stops20h 30m

£740

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Sun 25/10

13:25-14:45

2 stops32h 20m

London Heathrow

Sun 1/11

08:25-10:35

2 stops19h 10m

£757

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Wed 30/9

17:25-15:20

2 stops27h 55m

London Heathrow

Thu 8/10

10:00-15:25

2 stops23h 25m

£776

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Tue 13/10

11:05-07:00

3 stops25h 55m

London Heathrow

Tue 20/10

21:45-10:10

3 stops30h 25m

£782

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Tue 13/10

13:30-07:00

2 stops23h 30m

London Heathrow

Tue 20/10

16:35-21:35

3 stops23h 00m

£785

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Mon 19/10

19:00-06:30

2 stops17h 30m

London Heathrow

Mon 2/11

08:35-07:10

2 stops39h 35m

£827

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Wed 28/10

13:25-14:45

2 stops32h 20m

London Heathrow

Wed 4/11

08:25-11:30

2 stops20h 05m

£840

Fastest return journey

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Tue 13/10

21:00-07:15

1 stop16h 15m

London Heathrow

Tue 20/10

22:00-07:10

2 stops27h 10m

£863

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Tue 13/10

20:35-12:45

2 stops22h 10m

London Heathrow

Tue 20/10

21:45-07:10

2 stops27h 25m

£880

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

Prices

Airlines

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

You could potentially save up to 3% 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	£310
Fastest flight time	21h 05m
Direct flights	None

The best one-way flight to London Heathrow Airport from Ko Samui in the past 72 hours is £310. The best return flight deal from Ko Samui to London Heathrow Airport found on momondo in the last 72 hours is £672.

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.

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 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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Canterbury

Poole

Chichester

Salisbury

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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.