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.

£332 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

Cheap return flights

Enter your travel dates to find the best prices.

14:00 - 06:55

USM

LHR

22h 55m

2 stops

10:00 - 12:45

LHR

USM

20h 45m

2 stops

£820Gulf Air

Tue, 15 Sep - Tue, 6 Oct

13:50 - 06:55

USM

LHR

23h 05m

2 stops

10:00 - 12:45

LHR

USM

20h 45m

2 stops

£823Gulf Air

Tue, 15 Sep - Tue, 6 Oct

14:35 - 15:20

USM

LHR

30h 45m

2 stops

10:00 - 13:45

LHR

USM

21h 45m

2 stops

£823Gulf 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

£824Gulf 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

£836Multiple 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

£903Multiple 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

£908Multiple 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

£920Emirates

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

£920Emirates

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

£924Emirates

Thu, 19 Nov - Sun, 22 Nov

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Oman Air flights from Ko Samui to London Heathrow Airport

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

Oman Air

15 Sept

USM15:50Ko Samui

33h 20m

2 stops

LHR19:10London Heathrow

6 Oct

LHR20:50London Heathrow

18h 00m

2 stops

USM20:50Ko Samui

£719

Oman Air

6 Jul

USM15:50Ko Samui

33h 20m

2 stops

LHR19:10London Heathrow

13 Jul

LHR08:25London Heathrow

23h 20m

2 stops

USM13:45Ko Samui

£926

Oman Air

19 Jul

USM06:00Ko Samui

30h 30m

2 stops

LHR06:30London Heathrow

11 Aug

LHR20:50London Heathrow

17h 40m

2 stops

USM20:30Ko Samui

£962

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

USM14:00Ko Samui

22h 55m

2 stops

LHR06:55London Heathrow

6 Oct

LHR10:00London Heathrow

20h 45m

2 stops

USM12:45Ko Samui

£820

Gulf Air

15 Sept

USM13:50Ko Samui

23h 05m

2 stops

LHR06:55London Heathrow

6 Oct

LHR10:00London Heathrow

20h 45m

2 stops

USM12:45Ko Samui

£823

Gulf Air

15 Sept

USM14:35Ko Samui

30h 45m

2 stops

LHR15:20London Heathrow

6 Oct

LHR10:00London Heathrow

21h 45m

2 stops

USM13:45Ko Samui

£823

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

Fastest return journey

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 15/9

14:00-06:55

2 stops22h 55m

London Heathrow

Tue 6/10

10:00-12:45

2 stops20h 45m

£820

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 15/9

13:50-06:55

2 stops23h 05m

London Heathrow

Tue 6/10

10:00-12:45

2 stops20h 45m

£823

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 15/9

14:35-15:20

2 stops30h 45m

London Heathrow

Tue 6/10

10:00-13:45

2 stops21h 45m

£823

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

£824

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

£836

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

£903

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

£908

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

£920

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

£920

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

£924

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	22h 55m
Direct flights	None

The fastest flight from Ko Samui to London Heathrow Airport takes 22h 55m

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 22h 55m 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.