Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from London Gatwick Airport to Ko Samui from £320

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Gatwick Airport to Ko Samui departing on 30/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from London Gatwick Airport to Ko Samui

Cheap return flights

Logo
18:40 - 18:25LGW-USM
40h 45m2 stops
Logo
09:20 - 17:50USM-LGW
39h 30m2 stops
£657
Find Deal
jeu., 30 oct. - lun., 10 nov.
Logo
18:40 - 17:30LGW-USM
39h 50m2 stops
Logo
09:20 - 17:50USM-LGW
39h 30m2 stops
£658
Find Deal
jeu., 6 nov. - jeu., 20 nov.
Logo
10:30 - 18:55LGW-USM
25h 25m2 stops
Logo
09:20 - 14:00USM-LGW
35h 40m2 stops
£660
Find Deal
sam., 15 nov. - sam., 22 nov.
Logo
18:40 - 21:10LGW-USM
20h 30m2 stops
Logo
09:15 - 17:50USM-LGW
38h 35m2 stops
£663
Find Deal
jeu., 11 sept. - mar., 23 sept.
Logo
18:40 - 21:10LGW-USM
20h 30m2 stops
Logo
09:15 - 17:50USM-LGW
38h 35m2 stops
£665
Find Deal
jeu., 11 sept. - mar., 23 sept.
SWISS Logo
18:40 - 10:40LGW-USM
33h 00m2 stops
SWISS Logo
10:00 - 17:50USM-LGW
38h 50m2 stops
£669SWISS
Find Deal
jeu., 30 oct. - lun., 10 nov.
SWISS Logo
18:40 - 10:40LGW-USM
33h 00m2 stops
SWISS Logo
10:00 - 17:50USM-LGW
38h 50m2 stops
£673SWISS
Find Deal
jeu., 30 oct. - lun., 10 nov.
Turkish Airlines Logo
05:20 - 08:15LGW-USM
20h 55m2 stops
Turkish Airlines Logo
18:55 - 09:55USM-LGW
21h 00m2 stops
£800Turkish Airlines
Find Deal
dim., 28 sept. - ven., 17 oct.
Singapore Airlines Logo
09:20 - 10:50LGW-USM
18h 30m1 stop
Singapore Airlines Logo
19:25 - 06:25USM-LGW
18h 00m1 stop
£806Singapore Airlines
Find Deal
jeu., 6 nov. - jeu., 20 nov.
Singapore Airlines Logo
09:20 - 10:50LGW-USM
18h 30m1 stop
Singapore Airlines Logo
19:25 - 06:25USM-LGW
18h 00m1 stop
£829Singapore Airlines
Find Deal
lun., 17 nov. - lun., 24 nov.

Singapore Airlines flights from London Gatwick Airport to Ko Samui

Our best Singapore Airlines deals on London Gatwick Airport to Ko Samui flight tickets
Singapore Airlines
6 Nov
LGW09:20London Gatwick
18h 30m
1 stop
USM10:50Ko Samui
20 Nov
USM19:25Ko Samui
18h 00m
1 stop
LGW06:25London Gatwick
£806
Find similar
Singapore Airlines
17 Nov
LGW09:20London Gatwick
18h 30m
1 stop
USM10:50Ko Samui
24 Nov
USM19:25Ko Samui
18h 00m
1 stop
LGW06:25London Gatwick
£829
Find similar
Singapore Airlines
17 Nov
LGW09:20London Gatwick
18h 30m
1 stop
USM10:50Ko Samui
24 Nov
USM19:25Ko Samui
18h 00m
1 stop
LGW06:25London Gatwick
£830
Find similar

SWISS flights from London Gatwick Airport to Ko Samui

Our best SWISS deals on London Gatwick Airport to Ko Samui flight tickets
SWISS
30 Oct
LGW18:40London Gatwick
33h 00m
2 stops
USM10:40Ko Samui
10 Nov
USM10:00Ko Samui
38h 50m
2 stops
LGW17:50London Gatwick
£669
Find similar
SWISS
30 Oct
LGW18:40London Gatwick
33h 00m
2 stops
USM10:40Ko Samui
10 Nov
USM10:00Ko Samui
38h 50m
2 stops
LGW17:50London Gatwick
£673
Find similar
SWISS
9 Sept
LGW18:35London Gatwick
37h 10m
2 stops
USM13:45Ko Samui
18 Sept
USM09:15Ko Samui
38h 35m
2 stops
LGW17:50London Gatwick
£697
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Gatwick Airport to Ko Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 1 août 2025.
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

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

jeu. 30/10

18:40-18:25

2 stops40h 45m

Ko Samui

lun. 10/11

09:20-17:50

2 stops39h 30m

£657

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

jeu. 6/11

18:40-17:30

2 stops39h 50m

Ko Samui

jeu. 20/11

09:20-17:50

2 stops39h 30m

£658

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

sam. 15/11

10:30-18:55

2 stops25h 25m

Ko Samui

sam. 22/11

09:20-14:00

2 stops35h 40m

£660

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

jeu. 11/9

18:40-21:10

2 stops20h 30m

Ko Samui

mar. 23/9

09:15-17:50

2 stops38h 35m

£663

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

jeu. 11/9

18:40-21:10

2 stops20h 30m

Ko Samui

mar. 23/9

09:15-17:50

2 stops38h 35m

£665

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

jeu. 30/10

18:40-10:40

2 stops33h 00m

Ko Samui

lun. 10/11

10:00-17:50

2 stops38h 50m

£669

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

jeu. 30/10

18:40-10:40

2 stops33h 00m

Ko Samui

lun. 10/11

10:00-17:50

2 stops38h 50m

£673

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

dim. 28/9

05:20-08:15

2 stops20h 55m

Ko Samui

ven. 17/10

18:55-09:55

2 stops21h 00m

£800

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

jeu. 6/11

09:20-10:50

1 stop18h 30m

Ko Samui

jeu. 20/11

19:25-06:25

1 stop18h 00m

£806

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

lun. 17/11

09:20-10:50

1 stop18h 30m

Ko Samui

lun. 24/11

19:25-06:25

1 stop18h 00m

£829

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Ko Samui from

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

What is the cheapest month to fly to Ko Samui?

The cheapest month to fly to Ko Samui from London Gatwick Airport is in May. Flight prices, which tend to average around £815, are often lower during this time because this is during the off-season. If you don’t want to visit Ko Samui in May, then you should wait until June to fly from London Gatwick Airport, when ticket prices are also cheap, with an average price of £830.

What is the cheapest day to depart on your flight to Ko Samui?

According to our data, Wednesday is the cheapest day to fly to Ko Samui from London Gatwick Airport. The lowest ticket price found for a Wednesday departure recently was £499. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Ko Samui on Sunday is £852.

What is the cheapest time of day to depart on your flight to Ko Samui?

Our most recent data shows that the best time of day to fly to Ko Samui is in the afternoon. Flights from London Gatwick Airport to Ko Samui during this time can be as low as £506. Flights at midday are often more expensive, with an average ticket price of £822.

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

£320

Fastest flight time

16h 45m

Direct flights

None

Airports in Ko Samui

1 airport
The best one-way flight to Ko Samui from London Gatwick Airport in the past 72 hours is £320. The best return flight deal from London Gatwick Airport to Ko Samui found on momondo in the last 72 hours is £657.
The fastest flight from London Gatwick Airport to Ko Samui takes 16h 45m
There are no direct flights from London Gatwick Airport to Ko Samui. Popular non-direct route for this connection is London Gatwick Airport - Ko Samui Airport.
There is 1 airport near Ko Samui: Ko Samui (USM)
Search flight deals

  • 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 30m 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?

  • 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?

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
EmiratesPriceFrom £774Free CancellationRating
8.1
3,300 reviews
Search Emirates flights
Singapore AirlinesPriceFrom £794Free CancellationRating
8.1
1,338 reviews
Search Singapore Airlines flights
British AirwaysPriceFrom £833Free CancellationRating
6.6
7,222 reviews
Search British Airways flights
Qatar AirwaysPriceFrom £862Free CancellationRating
7.4
3,609 reviews
Search Qatar Airways flights

Travelling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Pha Ngan
Ko Tao
Khanom

Why use momondo?

Why should I use momondo to find a flight deal from London to Ko Samui?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Ko Samui . Millions of users trust and use momondo every year so you are in good hands.

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

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
mer. 6/8
mer. 13/8
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Thailand