What day of the week experiences the fewest flight delays on this route?

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

What is the most punctual flight time for London to Ko Samui flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Which airlines fly to Ko Samui?

Qatar Airways, British Airways and Singapore Airlines are the top three most popular airlines that fly to Ko Samui from London Gatwick Airport according to our data. Qatar Airways is the first choice among our users, with 39% of people opting to fly with this airline when travelling to Ko Samui. Keep in mind that there are 3 different airlines that fly to Ko Samui on a routine basis, so you have a few additional options to choose from.

How often are flights from London to Ko Samui delayed?

Historically, on average around 9% of flights between London and Ko Samui have experienced a delay on any given week. The average delay length over the past 12 months has been 144 minutes.

Which airline has the best punctuality record on London to Ko Samui flights?

According to our data, JetBlue have had the fewest delays on this route over the last 12 months, with about 9% of their flights experiencing any sort of delay.

When did momondo last update prices for flights from London Gatwick Airport to Ko Samui Airport?

Prices for flights from London Gatwick Airport to Ko Samui Airport were last updated today.

How many operators does momondo search for flights from London Gatwick Airport to Ko Samui Airport?

The number of operators available for flights from London Gatwick Airport to Ko Samui Airport is 3 as of September 2026.

How old do you have to be to fly from London Gatwick Airport to Ko Samui Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Gatwick Airport to Ko Samui Airport.

What documentation or ID do you need to fly to Ko Samui Airport?

The travel and health documents you'll need for your trip to Ko Samui Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ko Samui Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£346 Cheap Flights from London Gatwick Airport to Ko Samui in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from London Gatwick Airport to Ko Samui

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

19:35 - 20:25LGW London Gatwick-USM Ko Samui

18h 50m2 stops Sharjah Phuket City

08:00 - 08:45USM Ko Samui-LGW London Gatwick

30h 45m2 stops Phuket City Sharjah

£671Multiple Airlines

Mon, 5 Oct - Mon, 12 Oct

08:45 - 18:25LGW London Gatwick-USM Ko Samui

26h 40m2 stops Sharjah Phuket City

12:30 - 07:45USM Ko Samui-LGW London Gatwick

26h 15m2 stops Phuket City Sharjah

£672Multiple Airlines

Thu, 19 Nov - Mon, 23 Nov

11:15 - 18:50LGW London Gatwick-USM Ko Samui

25h 35m2 stops Shanghai Pu Dong Singapore Changi

12:00 - 07:10USM Ko Samui-LGW London Gatwick

26h 10m2 stops Singapore Changi Shanghai Pu Dong

£672Multiple Airlines

Wed, 21 Oct - Wed, 28 Oct

21:20 - 11:50LGW London Gatwick-USM Ko Samui

31h 30m1 stop Bangkok Suvarnabhumi

19:10 - 05:25USM Ko Samui-LGW London Gatwick

17h 15m1 stop Bangkok Suvarnabhumi

£794British Airways

Sun, 8 Nov - Tue, 24 Nov

21:20 - 11:50LGW London Gatwick-USM Ko Samui

31h 30m1 stop Bangkok Suvarnabhumi

19:10 - 05:25USM Ko Samui-LGW London Gatwick

17h 15m1 stop Bangkok Suvarnabhumi

£794British Airways

Mon, 9 Nov - Wed, 18 Nov

21:20 - 11:50LGW London Gatwick-USM Ko Samui

31h 30m1 stop Bangkok Suvarnabhumi

19:10 - 05:25USM Ko Samui-LGW London Gatwick

17h 15m1 stop Bangkok Suvarnabhumi

£794British Airways

Thu, 5 Nov - Wed, 18 Nov

08:40 - 16:00LGW London Gatwick-USM Ko Samui

24h 20m2 stops Doha Hamad Intl Bangkok Suvarnabhumi

12:40 - 05:55USM Ko Samui-LGW London Gatwick

24h 15m2 stops Bangkok Suvarnabhumi Doha Hamad Intl

£809Qatar Airways

Thu, 11 Feb - Sat, 6 Mar

08:40 - 10:35LGW London Gatwick-USM Ko Samui

18h 55m2 stops Doha Hamad Intl Bangkok Suvarnabhumi

07:00 - 05:55USM Ko Samui-LGW London Gatwick

29h 55m2 stops Bangkok Suvarnabhumi Doha Hamad Intl

£817Qatar Airways

Sat, 27 Feb - Sat, 20 Mar

13:05 - 17:10LGW London Gatwick-USM Ko Samui

21h 05m1 stop Singapore Changi

12:00 - 09:05USM Ko Samui-LGW London Gatwick

28h 05m1 stop Singapore Changi

£821Singapore Airlines

Wed, 4 Nov - Tue, 10 Nov

13:05 - 08:00LGW London Gatwick-USM Ko Samui

35h 55m1 stop Singapore Changi

08:55 - 06:25USM Ko Samui-LGW London Gatwick

28h 30m1 stop Singapore Changi

£824Singapore Airlines

Tue, 24 Nov - Fri, 4 Dec

Cheap last-minute flights

Enter your travel dates to find the best prices.

11:10 - 16:30LGW London Gatwick-USM Ko Samui

23h 20m2 stops Guangzhou Baiyun Bangkok Suvarnabhumi

12:25 - 10:25USM Ko Samui-LGW London Gatwick

29h 00m3 stops Krabi Abu Dhabi Zayed Intl Dublin

£672Multiple Airlines

Tue, 29 Sep - Thu, 29 Oct

11:10 - 17:45LGW London Gatwick-USM Ko Samui

24h 35m2 stops Guangzhou Baiyun Bangkok Suvarnabhumi

11:10 - 07:45USM Ko Samui-LGW London Gatwick

27h 35m2 stops Phuket City Sharjah

£678Multiple Airlines

Tue, 29 Sep - Thu, 29 Oct

10:00 - 20:25LGW London Gatwick-USM Ko Samui

28h 25m2 stops Sharjah Phuket City

14:30 - 08:45USM Ko Samui-LGW London Gatwick

24h 15m2 stops Phuket City Sharjah

£683Multiple Airlines

Thu, 24 Sep - Wed, 7 Oct

17:40 - 20:50LGW London Gatwick-USM Ko Samui

21h 10m2 stops Guangzhou Baiyun Bangkok Suvarnabhumi

19:45 - 15:00USM Ko Samui-LGW London Gatwick

25h 15m2 stops Singapore Changi Shanghai Pu Dong

£688Multiple Airlines

Tue, 29 Sep - Thu, 22 Oct

22:15 - 11:05LGW London Gatwick-USM Ko Samui

30h 50m1 stop Bangkok Suvarnabhumi

19:15 - 05:55USM Ko Samui-LGW London Gatwick

16h 40m1 stop Bangkok Suvarnabhumi

£794British Airways

Sat, 26 Sep - Fri, 9 Oct

22:15 - 20:30LGW London Gatwick-USM Ko Samui

16h 15m1 stop Bangkok Suvarnabhumi

19:15 - 05:55USM Ko Samui-LGW London Gatwick

16h 40m1 stop Bangkok Suvarnabhumi

£810British Airways

Thu, 24 Sep - Wed, 7 Oct

22:15 - 11:05LGW London Gatwick-USM Ko Samui

30h 50m1 stop Bangkok Suvarnabhumi

19:15 - 05:55USM Ko Samui-LGW London Gatwick

16h 40m1 stop Bangkok Suvarnabhumi

£817British Airways

Sat, 26 Sep - Fri, 16 Oct

13:15 - 17:20LGW London Gatwick-USM Ko Samui

22h 05m1 stop Singapore Changi

18:05 - 09:05USM Ko Samui-LGW London Gatwick

22h 00m1 stop Singapore Changi

£1,202Singapore Airlines

Tue, 29 Sep - Thu, 29 Oct

10:05 - 17:20LGW London Gatwick-USM Ko Samui

25h 15m1 stop Singapore Changi

11:05 - 06:55USM Ko Samui-LGW London Gatwick

25h 50m1 stop Singapore Changi

£1,202Singapore Airlines

Tue, 29 Sep - Thu, 22 Oct

10:05 - 17:20LGW London Gatwick-USM Ko Samui

25h 15m1 stop Singapore Changi

12:00 - 06:25USM Ko Samui-LGW London Gatwick

25h 25m1 stop Singapore Changi

£1,271Singapore Airlines

Tue, 29 Sep - Thu, 29 Oct

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British Airways flights from London Gatwick Airport to Ko Samui

Our best British Airways deals on London Gatwick Airport to Ko Samui flight tickets

British Airways

26 Sept

LGW22:15London Gatwick

30h 50m

1 stop

USM11:05Ko Samui

9 Oct

USM19:15Ko Samui

16h 40m

1 stop

LGW05:55London Gatwick

£794

British Airways

26 Sept

LGW22:15London Gatwick

30h 50m

1 stop

USM11:05Ko Samui

16 Oct

USM19:15Ko Samui

16h 40m

1 stop

LGW05:55London Gatwick

£817

Qatar Airways flights from London Gatwick Airport to Ko Samui

Our best Qatar Airways deals on London Gatwick Airport to Ko Samui flight tickets

Qatar Airways

1 Oct

LGW09:00London Gatwick

19h 30m

2 stops

USM10:30Ko Samui

12 Oct

USM17:55Ko Samui

18h 45m

2 stops

LGW06:40London Gatwick

£863

Qatar Airways

1 Oct

LGW09:00London Gatwick

19h 30m

2 stops

USM10:30Ko Samui

12 Oct

USM17:55Ko Samui

18h 45m

2 stops

LGW06:40London Gatwick

£891

Qatar Airways

1 Oct

LGW09:00London Gatwick

18h 20m

2 stops

USM09:20Ko Samui

12 Oct

USM15:25Ko Samui

21h 15m

2 stops

LGW06:40London Gatwick

£955

momondo Fare Finder

Use the filters below to find and compare flights from London Gatwick Airport to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonKo Samui

LGW London Gatwick - USM Ko Samui

LGWUSM

London Gatwick

Mon 5/10

19:35-20:25

2 stops18h 50m

Ko Samui

Mon 12/10

08:00-08:45

2 stops30h 45m

£671

LondonKo Samui

LGW London Gatwick - USM Ko Samui

LGWUSM

London Gatwick

Thu 19/11

08:45-18:25

2 stops26h 40m

Ko Samui

Mon 23/11

12:30-07:45

2 stops26h 15m

£672

LondonKo Samui

LGW London Gatwick - USM Ko Samui

LGWUSM

London Gatwick

Wed 21/10

11:15-18:50

2 stops25h 35m

Ko Samui

Wed 28/10

12:00-07:10

2 stops26h 10m

£672

LondonKo Samui

LGW London Gatwick - USM Ko Samui

LGWUSM

London Gatwick

Sun 8/11

21:20-11:50

1 stop31h 30m

Ko Samui

Tue 24/11

19:10-05:25

1 stop17h 15m

£794

LondonKo Samui

LGW London Gatwick - USM Ko Samui

LGWUSM

London Gatwick

Mon 9/11

21:20-11:50

1 stop31h 30m

Ko Samui

Wed 18/11

19:10-05:25

1 stop17h 15m

£794

LondonKo Samui

LGW London Gatwick - USM Ko Samui

LGWUSM

London Gatwick

Thu 5/11

21:20-11:50

1 stop31h 30m

Ko Samui

Wed 18/11

19:10-05:25

1 stop17h 15m

£794

Fastest return journey

LondonKo Samui

LGW London Gatwick - USM Ko Samui

LGWUSM

London Gatwick

Thu 11/2

08:40-16:00

2 stops24h 20m

Ko Samui

Sat 6/3

12:40-05:55

2 stops24h 15m

£809

LondonKo Samui

LGW London Gatwick - USM Ko Samui

LGWUSM

London Gatwick

Sat 27/2

08:40-10:35

2 stops18h 55m

Ko Samui

Sat 20/3

07:00-05:55

2 stops29h 55m

£817

LondonKo Samui

LGW London Gatwick - USM Ko Samui

LGWUSM

London Gatwick

Wed 4/11

13:05-17:10

1 stop21h 05m

Ko Samui

Tue 10/11

12:00-09:05

1 stop28h 05m

£821

LondonKo Samui

LGW London Gatwick - USM Ko Samui

LGWUSM

London Gatwick

Tue 24/11

13:05-08:00

1 stop35h 55m

Ko Samui

Fri 4/12

08:55-06:25

1 stop28h 30m

£824

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 London Gatwick Airport to Ko Samui

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

Delays

What is the cheapest month to fly to Ko Samui?

The cheapest month to fly to Ko Samui from London Gatwick Airport is in November. Flight prices, which tend to average around £758, are often lower during this time because this is during the off-season. If you don’t want to visit Ko Samui in November, then you should wait until May to fly from London Gatwick Airport, when ticket prices are also cheap, with an average price of £815.

Can stopping save me money on London Gatwick Airport to Ko Samui flights?

You could potentially save up to 39% on your flight if you consider stops on a London Gatwick Airport to Ko Samui flight.

When to book flights from London Gatwick Airport to Ko Samui

Are you open to changing your travel dates? Check out the ideal times to fly from London Gatwick Airport to Ko Samui according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap London Gatwick Airport to Ko Samui (LGW to USM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Gatwick Airport to Ko Samui

Best price found	£346
Fastest flight time	18h 50m
Direct flights	None

The best one-way flight to Ko Samui from London Gatwick Airport in the past 72 hours is £346. The best return flight deal from London Gatwick Airport to Ko Samui found on momondo in the last 72 hours is £671.

The fastest flight from London Gatwick Airport to Ko Samui takes 18h 50m

There are no direct flights from London Gatwick Airport to Ko Samui. There are no popular flight routes from London Gatwick Airport to Ko Samui.

Search flight deals

Frequently asked questions about flying from London Gatwick Airport to Ko Samui

How far is London Gatwick to Ko Samui by plane?
A flight from London Gatwick to Ko Samui will travel around 6139.0 mi. 18h 50m is a normal flight duration for this route.
When did momondo last update prices for flights from London Gatwick Airport to Ko Samui Airport?
Prices for flights from London Gatwick Airport to Ko Samui Airport were last updated today.
How many operators does momondo search for flights from London Gatwick Airport to Ko Samui Airport?
The number of operators available for flights from London Gatwick Airport to Ko Samui Airport is 3 as of September 2026.
How old do you have to be to fly from London Gatwick Airport to Ko Samui Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Gatwick Airport to Ko Samui Airport.
What documentation or ID do you need to fly to Ko Samui Airport?
The travel and health documents you'll need for your trip to Ko Samui Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ko Samui Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from London Gatwick Airport to Ko Samui?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London Gatwick Airport to Ko Samui is Qatar Airways (39% of total bookings). The next most popular airlines are British Airways (37%) and Singapore Airlines (24%).

Best airlines flying from London Gatwick Airport to Ko Samui

Compare and see reviews for airlines that fly from London Gatwick Airport to Ko Samui with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom £753	Free Cancellation	Rating 6.7 8,227 reviews	Search British Airways flights
Qatar Airways	PriceFrom £784	Free Cancellation	Rating 7.3 3,727 reviews	Search Qatar Airways flights
Singapore Airlines	PriceFrom £807	Free Cancellation	Rating 8.2 1,610 reviews	Search Singapore Airlines flights

Ko Pha Ngan

Ko Tao

Khanom

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Can I find flights from London to Ko Samui with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for London to Ko Samui flights to just show those with flexible booking policies.

How can momondo help me find flights from London to Ko Samui?

momondo helps you find the best flight between London and Ko Samui by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Ko Samui right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Ko Samui, momondo offers a useful price alert feature which will track prices for flights to Ko Samui from London and alert you when they change.

An easier way to manage your Ko Samui trip

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British Airways flights from London Gatwick Airport to Ko Samui

Our best British Airways deals on London Gatwick Airport to Ko Samui flight tickets

Qatar Airways flights from London Gatwick Airport to Ko Samui

Our best Qatar Airways deals on London Gatwick Airport to Ko Samui flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from London Gatwick Airport to Ko Samui that are best for you.

See travel insights to Ko Samui from

How to get the cheapest flight ticket from London Gatwick Airport to Ko Samui

What is the cheapest month to fly to Ko Samui?

Can stopping save me money on London Gatwick Airport to Ko Samui flights?

Which airlines fly to Ko Samui?

How often are flights from London to Ko Samui delayed?

What is the most punctual flight time for London to Ko Samui flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on London to Ko Samui flights?

When to book flights from London Gatwick Airport to Ko Samui

Cheap London Gatwick Airport to Ko Samui (LGW to USM) flight deals and tips

Best price found

Fastest flight time

Direct flights

Frequently asked questions about flying from London Gatwick Airport to Ko Samui

Best airlines flying from London Gatwick Airport to Ko Samui

Compare and see reviews for airlines that fly from London Gatwick Airport to Ko Samui with momondo

Travelling to a place near Ko Samui?

Why use momondo?

An easier way to manage your Ko Samui trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Thailand

Airports servicing Thailand

Fly your favourite airline to Ko Samui

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Ko Samui

List of cabin classes available on flights landing in Ko Samui. Availability may vary depending on flight origin and airline.

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