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Cheap flights from London Gatwick Airport to Ko Samui from £351

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — USM
20 Aug — 27 Aug1
1 adult

Cheap flight deals from Gatwick to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from Gatwick (LGW) to Ko Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 August 2025.

Round-trip from

£720

One-way from

£351

Popular in

April

Cheapest in

May

Average price

£1,257
11/1-11/3
  • 11/1-11/3
  • 4 total stops
  • 57h 10m total
  • London to Ko Samui
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15/10
  • 15/10
  • 3 total stops
  • 39h 55m total
  • London to Ko Samui
Search Deals
High demand for flights, 2% potential price rise
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Cheapest flight prices on average. 2% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
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Find flight deals from Gatwick to Ko Samui

Cheapest flights from Gatwick to Ko Samui
Explore the most affordable flight options available from Gatwick to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 August 2025.

Wed 20/820:50LGW - USM
3 stops32h 20mMultiple Airlines
Wed 17/919:25USM - LGW
3 stops33h 30mMultiple Airlines
Deal found 13/8£720
Thu 11/911:35LGW - USM
2 stops24h 55mMultiple Airlines
Thu 18/912:05USM - LGW
2 stops33h 05mMultiple Airlines
Deal found 14/8£721
Mon 17/1118:40LGW - USM
2 stops19h 25mMultiple Airlines
Mon 24/1110:00USM - LGW
2 stops38h 50mMultiple Airlines
Deal found 13/8£723
Wed 10/918:25LGW - USM
2 stops34h 05mMultiple Airlines
Wed 17/921:00USM - LGW
2 stops24h 00mMultiple Airlines
Deal found 13/8£723
Mon 1/912:35LGW - USM
2 stops25h 50mMultiple Airlines
Wed 24/917:40USM - LGW
2 stops31h 10mMultiple Airlines
Deal found 14/8£726
Thu 11/914:55LGW - USM
2 stops37h 35mMultiple Airlines
Tue 23/917:50USM - LGW
2 stops18h 50mMultiple Airlines
Deal found 13/8£728
Mon 3/1109:20LGW - USM
1 stop18h 30mSingapore Airlines
Mon 10/1111:45USM - LGW
1 stop25h 40mSingapore Airlines
Deal found 13/8£734
Tue 14/1014:55LGW - USM
2 stops37h 35mMultiple Airlines
Tue 21/1017:50USM - LGW
2 stops18h 50mMultiple Airlines
Deal found 13/8£735
Thu 11/918:40LGW - USM
2 stops37h 05mSWISS
Tue 23/908:45USM - LGW
2 stops39h 05mSWISS
Deal found 14/8£737
Mon 8/911:35LGW - USM
2 stops24h 55mMultiple Airlines
Mon 20/1019:25USM - LGW
2 stops29h 25mMultiple Airlines
Deal found 13/8£738

Cheapflights Fare Finder

 
Customise your flight search to find flights from Gatwick 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, Cheapflights users made 858,174 searches. Data last updated 15 August 2025.
Use the filters below to find and compare flights from London Gatwick Airport to Ko Samui that are best for you.

Fly from

Gatwick

Fly to

Ko Samui

Route

Depart

Return

Price

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Sun 11/1

08:40-18:55

2 stops27h 15m

Ko Samui

Wed 11/3

07:00-05:55

2 stops29h 55m

£720

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Thu 11/9

11:35-18:30

2 stops24h 55m

Ko Samui

Thu 18/9

12:05-15:10

2 stops33h 05m

£721

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Mon 17/11

18:40-21:05

2 stops19h 25m

Ko Samui

Mon 24/11

10:00-17:50

2 stops38h 50m

£723

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Wed 10/9

18:25-10:30

2 stops34h 05m

Ko Samui

Wed 17/9

21:00-15:00

2 stops24h 00m

£723

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Mon 1/9

12:35-20:25

2 stops25h 50m

Ko Samui

Wed 24/9

17:40-18:50

2 stops31h 10m

£726

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Thu 11/9

14:55-10:30

2 stops37h 35m

Ko Samui

Tue 23/9

17:50-06:40

2 stops18h 50m

£728

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Mon 3/11

09:20-10:50

1 stop18h 30m

Ko Samui

Mon 10/11

11:45-06:25

1 stop25h 40m

£734

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Tue 14/10

14:55-10:30

2 stops37h 35m

Ko Samui

Tue 21/10

17:50-06:40

2 stops18h 50m

£735

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Thu 11/9

18:40-13:45

2 stops37h 05m

Ko Samui

Tue 23/9

08:45-17:50

2 stops39h 05m

£737

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Mon 8/9

11:35-18:30

2 stops24h 55m

Ko Samui

Mon 20/10

19:25-18:50

2 stops29h 25m

£738

Flights are sorted by cheapest return flights first.

Deals found on 13/8

Showing 1-10 of 16 results
1
2

Best time to book a flight from Gatwick to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Gatwick with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Gatwick Airport to Ko Samui

What is the cheapest month to book a flight from London Gatwick Airport to Ko Samui?

Currently, August is the cheapest month in which you can book a flight from London Gatwick Airport to Ko Samui (average of £1,019). Flying from London Gatwick Airport to Ko Samui in December is currently the most expensive (average of £1,669). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LGW to USM?

Find hourly flight availability from Gatwick to Ko Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 August 2025.

It’s optimal to fly from London Gatwick Airport to Ko Samui in the morning. By choosing this option you can save up to 39% on the cost of your flight, compared to a flight at midday.

What’s the top stopover airport for flights from London Gatwick Airport to Ko Samui?

Share of one-stop return flights from London Gatwick Airport to Ko Samui chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Bangkok (BKK) – chosen by Cheapflights users on 72% of one-stop itineraries from London Gatwick Airport to Ko Samui on Cheapflights.

What’s the cheapest stopover airport for flights from London Gatwick Airport to Ko Samui?

Average return fare for one-stop flights from London Gatwick Airport to Ko Samui, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Shanghai (PVG) is the most affordable one-stop option, with an average return flight price of £433.

What’s the fastest stopover option from London Gatwick Airport to Ko Samui?

Shortest average travel time for one-stop one-way flights from London Gatwick Airport to Ko Samui, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Bangkok (BKK) have the shortest average one-way travel time for one-stop routes: 15h 40m.

Which airport typically offers the quickest stopover for flights from London Gatwick Airport to Ko Samui?

Average stopover duration for one-stop one-way flights from London Gatwick Airport to Ko Samui, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Bangkok (BKK) offer the fastest connection on this route, with an average stopover time of 2h 30m.

Reviews of airlines servicing Ko Samui

Get insights into the airlines that provide service to Ko Samui. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ko Samui. Reviews last updated 15 August 2025.
Read reviews from past customers who have flown with Emirates, Singapore Airlines, andQatar Airways from London Gatwick Airport to Ko Samui. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very Good
3,315 reviews
Check prices

Overall

8.1

Food

7.9

Crew

8.3

Entertainment

8.2

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Hemshika,Jun 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.
Emirates
8.1
Very Good
3,315 reviews
Emirates
8.1
Very Good
3,315 reviews
Check prices

Overall

8.1

Food

7.9

Crew

8.3

Entertainment

8.2

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Hemshika,Jun 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.
Singapore Airlines
8.1
Very Good
1,346 reviews
Emirates
8.1
Very Good
3,315 reviews
Check prices

Overall

8.1

Food

7.9

Crew

8.3

Entertainment

8.2

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Hemshika,Jun 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.
Qatar Airways
7.4
Good
3,608 reviews
Emirates
8.1
Very Good
3,315 reviews
Check prices

Overall

8.1

Food

7.9

Crew

8.3

Entertainment

8.2

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Hemshika,Jun 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.
British Airways
6.7
Okay
7,267 reviews
Emirates
8.1
Very Good
3,315 reviews
Check prices

Overall

8.1

Food

7.9

Crew

8.3

Entertainment

8.2

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Hemshika,Jun 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.

Related info for your journey

Find useful and relevant information for your journey from Gatwick to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ko Samui from London Gatwick?

    If you book a flight to Ko Samui from London Gatwick, you will be flying to Ko Samui, which is the city’s only airport. Ko Samui (USM) is located 2.1 mi from the center of Ko Samui. There are 0 flights from London Gatwick to Ko Samui per day from 4 different airlines.

  • What are the cheapest airlines flying from London Gatwick Airport to Ko Samui round-trip?

    Currently priced at £756, Emirates will fly you from London Gatwick Airport to Ko Samui and back. In addition to Emirates, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Singapore Airlines and British Airways - these airlines can fly you to your destination from £775 and £813, respectively. You may be able to fly from London Gatwick Airport to Ko Samui for 25% less than the average price by searching for these airlines.

  • Can I find deals for flights from Gatwick to Ko Samui that include hotel bookings?

    Yes. In addition to deals on Gatwick to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Gatwick to Ko Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gatwick to Ko Samui.

  • Can I find deals for business class flights from Gatwick to Ko Samui?

    Yes. Cheapflights offers flight deals from Gatwick to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Gatwick Airport to Ko Samui?

    Currently, August is the cheapest month in which you can book a flight from London Gatwick Airport to Ko Samui (average of £1,019). Flying from London Gatwick Airport to Ko Samui in December is currently the most expensive (average of £1,669). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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

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Alternative routes for Gatwick to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Gatwick to Ko Samui

Discover the top 4 airlines that operate flights from Gatwick to Ko Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 August 2025.
AirlineCheapestAverageFlexibilityOn-time
EmiratesCheapest£756Average£817FlexibilityNo cancel feeOn-time75%
Search Emirates flights
Singapore AirlinesCheapest£775Average£997FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
British AirwaysCheapest£813Average£980FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Qatar AirwaysCheapest£841Average£1,215FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Gatwick to Ko Samui?

When you search for this flight from Gatwick to Ko Samui, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Gatwick to Ko Samui?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ko Samui from Gatwick.

Can Cheapflights find flights from Gatwick to Ko Samui with no change fees?

Yes! Cheapflights helps users easily find flights from Gatwick to Ko Samui with no change fees.

Can Cheapflights notify me if prices for flights from Gatwick to Ko Samui become cheaper?

Yes! Start tracking prices for Gatwick to Ko Samui flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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