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.

£323 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

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

06:00 - 19:10

USM

LHR

19h 10m

2 stops

20:50 - 11:15

LHR

USM

32h 25m

2 stops

£727Oman Air

Tue, 15 Sep - Tue, 6 Oct

15:20 - 19:10

USM

LHR

33h 50m

2 stops

20:50 - 16:30

LHR

USM

37h 40m

2 stops

£728Oman Air

Tue, 15 Sep - Tue, 6 Oct

17:55 - 19:10

USM

LHR

31h 15m

2 stops

08:25 - 10:45

LHR

USM

20h 20m

2 stops

£728Oman Air

Mon, 7 Sep - Sun, 20 Sep

15:20 - 19:10

USM

LHR

33h 50m

2 stops

20:50 - 16:30

LHR

USM

37h 40m

2 stops

£732Oman Air

Tue, 15 Sep - Tue, 6 Oct

15:20 - 19:10

USM

LHR

33h 50m

2 stops

20:50 - 13:55

LHR

USM

35h 05m

2 stops

£733Oman Air

Mon, 7 Sep - Tue, 6 Oct

08:45 - 19:10

USM

LHR

40h 25m

2 stops

20:50 - 14:45

LHR

USM

35h 55m

2 stops

£753Oman Air

Tue, 15 Sep - Tue, 6 Oct

15:25 - 12:45

USM

LHR

27h 20m

2 stops

17:10 - 21:35

LHR

USM

22h 25m

3 stops

£781Multiple Airlines

Mon, 14 Sep - Sat, 26 Sep

06:00 - 19:10

USM

LHR

19h 10m

2 stops

22:10 - 07:10

LHR

USM

27h 00m

2 stops

£784Multiple Airlines

Wed, 29 Jul - Thu, 10 Sep

06:00 - 06:30

USM

LHR

30h 30m

2 stops

20:50 - 09:20

LHR

USM

30h 30m

2 stops

£796Oman Air

Sun, 19 Jul - Tue, 11 Aug

19:00 - 12:45

USM

LHR

23h 45m

2 stops

11:30 - 15:10

LHR

USM

21h 40m

3 stops

£808Multiple Airlines

Tue, 15 Sep - Sun, 27 Sep

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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

USM06:00Ko Samui

19h 10m

2 stops

LHR19:10London Heathrow

6 Oct

LHR20:50London Heathrow

32h 25m

2 stops

USM11:15Ko Samui

£727

Oman Air

15 Sept

USM15:20Ko Samui

33h 50m

2 stops

LHR19:10London Heathrow

6 Oct

LHR20:50London Heathrow

37h 40m

2 stops

USM16:30Ko Samui

£728

Oman Air

7 Sept

USM17:55Ko Samui

31h 15m

2 stops

LHR19:10London Heathrow

20 Sept

LHR08:25London Heathrow

20h 20m

2 stops

USM10:45Ko Samui

£728

Emirates flights from Ko Samui to London Heathrow Airport

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

Emirates

18 Nov

USM16:25Ko Samui

26h 15m

2 stops

LHR11:40London Heathrow

22 Nov

LHR13:40London Heathrow

24h 25m

2 stops

USM21:05Ko Samui

£930

Emirates

18 Nov

USM16:25Ko Samui

26h 15m

2 stops

LHR11:40London Heathrow

22 Nov

LHR13:40London Heathrow

24h 25m

2 stops

USM21:05Ko Samui

£931

Emirates

18 Nov

USM16:25Ko Samui

26h 15m

2 stops

LHR11:40London Heathrow

22 Nov

LHR13:40London Heathrow

24h 25m

2 stops

USM21:05Ko Samui

£935

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

06:00-19:10

2 stops19h 10m

London Heathrow

Tue 6/10

20:50-11:15

2 stops32h 25m

£727

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 15/9

15:20-19:10

2 stops33h 50m

London Heathrow

Tue 6/10

20:50-16:30

2 stops37h 40m

£728

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 7/9

17:55-19:10

2 stops31h 15m

London Heathrow

Sun 20/9

08:25-10:45

2 stops20h 20m

£728

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 15/9

15:20-19:10

2 stops33h 50m

London Heathrow

Tue 6/10

20:50-16:30

2 stops37h 40m

£732

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 7/9

15:20-19:10

2 stops33h 50m

London Heathrow

Tue 6/10

20:50-13:55

2 stops35h 05m

£733

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 15/9

08:45-19:10

2 stops40h 25m

London Heathrow

Tue 6/10

20:50-14:45

2 stops35h 55m

£753

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 14/9

15:25-12:45

2 stops27h 20m

London Heathrow

Sat 26/9

17:10-21:35

3 stops22h 25m

£781

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Wed 29/7

06:00-19:10

2 stops19h 10m

London Heathrow

Thu 10/9

22:10-07:10

2 stops27h 00m

£784

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Sun 19/7

06:00-06:30

2 stops30h 30m

London Heathrow

Tue 11/8

20:50-09:20

2 stops30h 30m

£796

Fastest return journey

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 15/9

19:00-12:45

2 stops23h 45m

London Heathrow

Sun 27/9

11:30-15:10

3 stops21h 40m

£808

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 29% 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	19h 15m
Direct flights	None

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

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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 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.