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

Oman Air 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.

£349 Cheap Flights from Ko Samui to London Heathrow Airport in 2026

Voted winner of Europe's Best Travel App 2023

Find the cheapest flights from Ko Samui to London

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

13:50 - 15:20

USM

LHR

31h 30m

2 stops

10:00 - 17:05

LHR

USM

25h 05m

2 stops

£825Gulf Air

Tue, 15 Sep - Tue, 6 Oct

13:50 - 15:20

USM

LHR

31h 30m

2 stops

10:00 - 15:10

LHR

USM

23h 10m

2 stops

£827Gulf Air

Tue, 15 Sep - Tue, 6 Oct

13:50 - 15:20

USM

LHR

31h 30m

2 stops

10:00 - 17:05

LHR

USM

25h 05m

2 stops

£828Gulf Air

Tue, 15 Sep - Tue, 6 Oct

11:45 - 07:30

USM

LHR

25h 45m

2 stops

10:00 - 12:45

LHR

USM

20h 45m

2 stops

£839Multiple Airlines

Tue, 15 Sep - Sun, 27 Sep

20:50 - 19:10

USM

LHR

28h 20m

2 stops

08:25 - 11:05

LHR

USM

20h 40m

2 stops

£906Multiple Airlines

Mon, 6 Jul - Mon, 13 Jul

21:00 - 19:10

USM

LHR

28h 10m

2 stops

08:25 - 11:05

LHR

USM

20h 40m

2 stops

£911Multiple Airlines

Mon, 6 Jul - Mon, 13 Jul

20:35 - 19:10

USM

LHR

28h 35m

2 stops

08:25 - 11:05

LHR

USM

20h 40m

2 stops

£915Multiple Airlines

Mon, 6 Jul - Mon, 13 Jul

16:25 - 11:40

USM

LHR

26h 15m

2 stops

13:40 - 21:05

LHR

USM

24h 25m

2 stops

£926Emirates

Thu, 19 Nov - Sun, 22 Nov

16:25 - 11:40

USM

LHR

26h 15m

2 stops

13:40 - 21:05

LHR

USM

24h 25m

2 stops

£927Emirates

Thu, 19 Nov - Sun, 22 Nov

16:25 - 07:10

USM

LHR

21h 45m

2 stops

09:10 - 21:05

LHR

USM

28h 55m

2 stops

£928Emirates

Thu, 19 Nov - Sun, 22 Nov

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Gulf Air flights from Ko Samui to London Heathrow Airport

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

Gulf Air

15 Sept

USM13:50Ko Samui

31h 30m

2 stops

LHR15:20London Heathrow

6 Oct

LHR10:00London Heathrow

25h 05m

2 stops

USM17:05Ko Samui

£825

Gulf Air

15 Sept

USM13:50Ko Samui

31h 30m

2 stops

LHR15:20London Heathrow

6 Oct

LHR10:00London Heathrow

23h 10m

2 stops

USM15:10Ko Samui

£827

Gulf Air

15 Sept

USM13:50Ko Samui

31h 30m

2 stops

LHR15:20London Heathrow

6 Oct

LHR10:00London Heathrow

25h 05m

2 stops

USM17:05Ko Samui

£828

Emirates flights from Ko Samui to London Heathrow Airport

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

Emirates

19 Nov

USM16:25Ko Samui

26h 15m

2 stops

LHR11:40London Heathrow

22 Nov

LHR13:40London Heathrow

24h 25m

2 stops

USM21:05Ko Samui

£926

Emirates

19 Nov

USM16:25Ko Samui

26h 15m

2 stops

LHR11:40London Heathrow

22 Nov

LHR13:40London Heathrow

24h 25m

2 stops

USM21:05Ko Samui

£927

Emirates

19 Nov

USM16:25Ko Samui

21h 45m

2 stops

LHR07:10London Heathrow

22 Nov

LHR09:10London Heathrow

28h 55m

2 stops

USM21:05Ko Samui

£928

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

Tue 15/9

13:50-15:20

2 stops31h 30m

London Heathrow

Tue 6/10

10:00-17:05

2 stops25h 05m

£825

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 15/9

13:50-15:20

2 stops31h 30m

London Heathrow

Tue 6/10

10:00-15:10

2 stops23h 10m

£827

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 15/9

13:50-15:20

2 stops31h 30m

London Heathrow

Tue 6/10

10:00-17:05

2 stops25h 05m

£828

Fastest return journey

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 15/9

11:45-07:30

2 stops25h 45m

London Heathrow

Sun 27/9

10:00-12:45

2 stops20h 45m

£839

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 6/7

20:50-19:10

2 stops28h 20m

London Heathrow

Mon 13/7

08:25-11:05

2 stops20h 40m

£906

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 6/7

21:00-19:10

2 stops28h 10m

London Heathrow

Mon 13/7

08:25-11:05

2 stops20h 40m

£911

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 6/7

20:35-19:10

2 stops28h 35m

London Heathrow

Mon 13/7

08:25-11:05

2 stops20h 40m

£915

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Thu 19/11

16:25-11:40

2 stops26h 15m

London Heathrow

Sun 22/11

13:40-21:05

2 stops24h 25m

£926

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Thu 19/11

16:25-11:40

2 stops26h 15m

London Heathrow

Sun 22/11

13:40-21:05

2 stops24h 25m

£927

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Thu 19/11

16:25-07:10

2 stops21h 45m

London Heathrow

Sun 22/11

09:10-21:05

2 stops28h 55m

£928

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 8% 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	16h 35m
Direct flights	None

The fastest flight from Ko Samui to London Heathrow Airport takes 16h 35m

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 16h 35m 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.