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.

£321 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

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

07:50 - 19:10

USM

LHR

41h 20m

2 stops

20:50 - 11:40

LHR

USM

32h 50m

2 stops

£717Oman Air

Tue, 15 Sep - Tue, 6 Oct

06:00 - 19:10

USM

LHR

19h 10m

2 stops

08:25 - 13:45

LHR

USM

23h 20m

2 stops

£720Oman Air

Tue, 18 Aug - Fri, 18 Sep

15:20 - 19:10

USM

LHR

33h 50m

2 stops

08:25 - 11:05

LHR

USM

20h 40m

2 stops

£720Oman Air

Mon, 14 Sep - Sat, 26 Sep

11:45 - 19:10

USM

LHR

37h 25m

2 stops

20:50 - 12:45

LHR

USM

33h 55m

2 stops

£723Oman Air

Tue, 15 Sep - Tue, 6 Oct

15:25 - 19:10

USM

LHR

33h 45m

2 stops

20:50 - 11:05

LHR

USM

32h 15m

2 stops

£750Oman Air

Mon, 14 Sep - Mon, 28 Sep

06:00 - 19:10

USM

LHR

19h 10m

2 stops

20:50 - 20:30

LHR

USM

17h 40m

2 stops

£767Oman Air

Wed, 5 Aug - Wed, 2 Sep

06:00 - 19:10

USM

LHR

19h 10m

2 stops

20:50 - 20:30

LHR

USM

17h 40m

2 stops

£770Oman Air

Wed, 19 Aug - Wed, 16 Sep

17:40 - 05:55

USM

LHR

19h 15m

2 stops

20:05 - 20:25

LHR

USM

17h 20m

2 stops

£780Multiple Airlines

Wed, 28 Oct - Wed, 25 Nov

06:00 - 19:10

USM

LHR

19h 10m

2 stops

19:30 - 17:45

LHR

USM

16h 15m

2 stops

£798Multiple Airlines

Wed, 5 Aug - Thu, 3 Sep

19:50 - 19:10

USM

LHR

29h 20m

2 stops

19:30 - 17:45

LHR

USM

16h 15m

2 stops

£805Multiple Airlines

Tue, 4 Aug - Thu, 3 Sep

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Emirates flights from Ko Samui to London Heathrow Airport

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

Emirates

13 Sept

USM16:25Ko Samui

20h 40m

2 stops

LHR07:05London Heathrow

27 Sept

LHR14:20London Heathrow

24h 50m

2 stops

USM21:10Ko Samui

£918

Emirates

13 Sept

USM16:25Ko Samui

28h 00m

2 stops

LHR14:25London Heathrow

16 Sept

LHR09:05London Heathrow

30h 05m

2 stops

USM21:10Ko Samui

£922

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

USM07:50Ko Samui

41h 20m

2 stops

LHR19:10London Heathrow

6 Oct

LHR20:50London Heathrow

32h 50m

2 stops

USM11:40Ko Samui

£717

Oman Air

18 Aug

USM06:00Ko Samui

19h 10m

2 stops

LHR19:10London Heathrow

18 Sept

LHR08:25London Heathrow

23h 20m

2 stops

USM13:45Ko Samui

£720

Oman Air

14 Sept

USM15:20Ko Samui

33h 50m

2 stops

LHR19:10London Heathrow

26 Sept

LHR08:25London Heathrow

20h 40m

2 stops

USM11:05Ko Samui

£720

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

07:50-19:10

2 stops41h 20m

London Heathrow

Tue 6/10

20:50-11:40

2 stops32h 50m

£717

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 18/8

06:00-19:10

2 stops19h 10m

London Heathrow

Fri 18/9

08:25-13:45

2 stops23h 20m

£720

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 14/9

15:20-19:10

2 stops33h 50m

London Heathrow

Sat 26/9

08:25-11:05

2 stops20h 40m

£720

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 15/9

11:45-19:10

2 stops37h 25m

London Heathrow

Tue 6/10

20:50-12:45

2 stops33h 55m

£723

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 14/9

15:25-19:10

2 stops33h 45m

London Heathrow

Mon 28/9

20:50-11:05

2 stops32h 15m

£750

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Wed 5/8

06:00-19:10

2 stops19h 10m

London Heathrow

Wed 2/9

20:50-20:30

2 stops17h 40m

£767

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Wed 19/8

06:00-19:10

2 stops19h 10m

London Heathrow

Wed 16/9

20:50-20:30

2 stops17h 40m

£770

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Wed 28/10

17:40-05:55

2 stops19h 15m

London Heathrow

Wed 25/11

20:05-20:25

2 stops17h 20m

£780

Fastest return journey

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Wed 5/8

06:00-19:10

2 stops19h 10m

London Heathrow

Thu 3/9

19:30-17:45

2 stops16h 15m

£798

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 4/8

19:50-19:10

2 stops29h 20m

London Heathrow

Thu 3/9

19:30-17:45

2 stops16h 15m

£805

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 10m
Direct flights	None

The fastest flight from Ko Samui to London Heathrow Airport takes 19h 10m

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 19h 10m 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.

Eastbourne

Wembley

Gatwick

Milton Keynes

Luton

Stratford-upon-Avon

Southend-on-Sea

Slough

Northampton

Maidstone

Ipswich

Swindon

Ilford

Canterbury

Folkestone

Poole

Guildford

Hayes

Chichester

Hastings

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.