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.

£256 Cheap Flights from Ko Samui to London Heathrow Airport in 2026/27

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.

17:05 - 11:30USM Ko Samui-LHR London Heathrow

25h 25m2 stops Bangkok Suvarnabhumi New Delhi Indira Gandhi Intl

08:45 - 13:30LHR London Heathrow-USM Ko Samui

21h 45m2 stops New Delhi Indira Gandhi Intl Bangkok Suvarnabhumi

£730Multiple Airlines

Tue, 10 Nov - Tue, 17 Nov

14:25 - 06:35USM Ko Samui-LHR London Heathrow

23h 10m2 stops Bangkok Suvarnabhumi New Delhi Indira Gandhi Intl

08:45 - 10:35LHR London Heathrow-USM Ko Samui

18h 50m2 stops New Delhi Indira Gandhi Intl Bangkok Suvarnabhumi

£747Multiple Airlines

Sun, 8 Nov - Sun, 15 Nov

21:00 - 17:45USM Ko Samui-LHR London Heathrow

26h 45m2 stops Bangkok Suvarnabhumi Mumbai Chhatrapati Shivaji Intl

13:55 - 18:25LHR London Heathrow-USM Ko Samui

21h 30m2 stops Abu Dhabi Zayed Intl Phuket City

£756Multiple Airlines

Sat, 17 Oct - Fri, 30 Oct

18:15 - 19:20USM Ko Samui-LHR London Heathrow

32h 05m2 stops Phuket City New Delhi Indira Gandhi Intl

21:00 - 10:40LHR London Heathrow-USM Ko Samui

30h 40m2 stops Shanghai Pu Dong Phuket City

£767Multiple Airlines

Tue, 3 Nov - Thu, 12 Nov

12:15 - 11:05USM Ko Samui-LHR London Heathrow

29h 50m2 stops Bangkok Suvarnabhumi Mumbai Chhatrapati Shivaji Intl

20:30 - 07:45LHR London Heathrow-USM Ko Samui

28h 15m2 stops Mumbai Chhatrapati Shivaji Intl Bangkok Suvarnabhumi

£769Multiple Airlines

Sat, 7 Nov - Sat, 14 Nov

11:05 - 06:30USM Ko Samui-LHR London Heathrow

25h 25m3 stops Singapore Changi Kuala Lumpur Intl Muscat Seeb

13:55 - 18:25LHR London Heathrow-USM Ko Samui

21h 30m2 stops Abu Dhabi Zayed Intl Phuket City

£795Multiple Airlines

Sat, 17 Oct - Fri, 30 Oct

11:25 - 06:30USM Ko Samui-LHR London Heathrow

25h 05m2 stops Phuket City Muscat Seeb

13:55 - 18:25LHR London Heathrow-USM Ko Samui

21h 30m2 stops Abu Dhabi Zayed Intl Phuket City

£818Multiple Airlines

Sat, 17 Oct - Fri, 30 Oct

20:30 - 06:40USM Ko Samui-LHR London Heathrow

17h 10m1 stop Bangkok Suvarnabhumi

22:30 - 07:10LHR London Heathrow-USM Ko Samui

25h 40m2 stops Shenzhen Bangkok Suvarnabhumi

£850Multiple Airlines

Tue, 10 Nov - Tue, 17 Nov

07:00 - 19:35USM Ko Samui-LHR London Heathrow

19h 35m1 stop Bangkok Suvarnabhumi

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

27h 00m2 stops Shenzhen Bangkok Suvarnabhumi

£855Multiple Airlines

Sun, 8 Nov - Sun, 15 Nov

06:00 - 19:15USM Ko Samui-LHR London Heathrow

19h 15m1 stop Bangkok Suvarnabhumi

21:10 - 07:35LHR London Heathrow-USM Ko Samui

27h 25m2 stops Shenzhen Bangkok Suvarnabhumi

£858Multiple Airlines

Sat, 17 Oct - Fri, 30 Oct

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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

4 Nov

USM20:20Ko Samui

22h 45m

2 stops

LHR12:05London Heathrow

12 Nov

LHR13:55London Heathrow

20h 35m

2 stops

USM17:30Ko Samui

£868

Etihad Airways

3 Nov

USM18:40Ko Samui

24h 25m

2 stops

LHR12:05London Heathrow

14 Nov

LHR13:55London Heathrow

21h 30m

2 stops

USM18:25Ko Samui

£870

Etihad Airways

5 Nov

USM19:00Ko Samui

24h 05m

2 stops

LHR12:05London Heathrow

9 Nov

LHR13:55London Heathrow

21h 30m

2 stops

USM18:25Ko Samui

£871

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

2 Nov

USM20:20Ko Samui

22h 55m

2 stops

LHR12:15London Heathrow

9 Nov

LHR15:30London Heathrow

17h 45m

2 stops

USM16:15Ko Samui

£895

Qatar Airways

5 Nov

USM07:00Ko Samui

21h 55m

2 stops

LHR21:55London Heathrow

9 Nov

LHR15:30London Heathrow

18h 30m

2 stops

USM17:00Ko Samui

£896

Qatar Airways

24 Dec

USM21:30Ko Samui

21h 45m

2 stops

LHR12:15London Heathrow

12 Jan

LHR09:25London Heathrow

16h 55m

2 stops

USM09:20Ko Samui

£985

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

Tue 10/11

17:05-11:30

2 stops25h 25m

London Heathrow

Tue 17/11

08:45-13:30

2 stops21h 45m

£730

Fastest return journey

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Sun 8/11

14:25-06:35

2 stops23h 10m

London Heathrow

Sun 15/11

08:45-10:35

2 stops18h 50m

£747

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Sat 17/10

21:00-17:45

2 stops26h 45m

London Heathrow

Fri 30/10

13:55-18:25

2 stops21h 30m

£756

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Tue 3/11

18:15-19:20

2 stops32h 05m

London Heathrow

Thu 12/11

21:00-10:40

2 stops30h 40m

£767

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Sat 7/11

12:15-11:05

2 stops29h 50m

London Heathrow

Sat 14/11

20:30-07:45

2 stops28h 15m

£769

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Sat 17/10

11:05-06:30

3 stops25h 25m

London Heathrow

Fri 30/10

13:55-18:25

2 stops21h 30m

£795

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Sat 17/10

11:25-06:30

2 stops25h 05m

London Heathrow

Fri 30/10

13:55-18:25

2 stops21h 30m

£818

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Tue 10/11

20:30-06:40

1 stop17h 10m

London Heathrow

Tue 17/11

22:30-07:10

2 stops25h 40m

£850

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Sun 8/11

07:00-19:35

1 stop19h 35m

London Heathrow

Sun 15/11

21:10-07:10

2 stops27h 00m

£855

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Sat 17/10

06:00-19:15

1 stop19h 15m

London Heathrow

Fri 30/10

21:10-07:35

2 stops27h 25m

£858

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 2% 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	£256
Fastest flight time	17h 15m
Direct flights	None

The best one-way flight to London Heathrow Airport from Ko Samui in the past 72 hours is £256. The best return flight deal from Ko Samui to London Heathrow Airport found on momondo in the last 72 hours is £730.

The fastest flight from Ko Samui to London Heathrow Airport takes 17h 15m

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 17h 15m 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.