Find flights
When to book
Airlines
FAQs

Cheap flights from London Gatwick Airport to Ko Samui from £315

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — USM
8 Jul — 15 Jul1
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 3 July 2025.

Round-trip from

£726

One-way from

£315

Popular in

April

Cheapest in

October

Average price

£1,225
8/9-19/9
  • 8/9-19/9
  • 4 total stops
  • 51h 15m total
  • London to Ko Samui
2/9
  • 2/9
  • 3 total stops
  • 21h 55m total
  • London to Ko Samui
High demand for flights, 0% potential price rise
Cheapest flight prices on average. 2% potential price decrease (£20 potential savings vs. average return price).
Average for round-trip flights in July 2025

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 3 July 2025.

Mon 8/914:55LGW - USM
2 stops21h 35mMultiple Airlines
Fri 19/907:00USM - LGW
2 stops29h 40mMultiple Airlines
Deal found 2/7£726
Tue 2/918:35LGW - USM
2 stops37h 10mSWISS
Fri 12/908:45USM - LGW
2 stops39h 05mSWISS
Deal found 2/7£730
Mon 17/1109:20LGW - USM
1 stop18h 30mSingapore Airlines
Mon 24/1119:25USM - LGW
1 stop18h 00mSingapore Airlines
Deal found 1/7£790
Wed 20/817:15LGW - USM
2 stops43h 00mTurkish Airlines
Tue 30/916:25USM - LGW
2 stops26h 35mTurkish Airlines
Deal found 1/7£815
Sat 30/809:00LGW - USM
2 stops27h 00mQatar Airways
Sat 13/915:25USM - LGW
2 stops21h 15mQatar Airways
Deal found 1/7£820

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 3 July 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

Mon 8/9

14:55-18:30

2 stops21h 35m

Ko Samui

Fri 19/9

07:00-06:40

2 stops29h 40m

£726

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Tue 2/9

18:35-13:45

2 stops37h 10m

Ko Samui

Fri 12/9

08:45-17:50

2 stops39h 05m

£730

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Mon 17/11

09:20-10:50

1 stop18h 30m

Ko Samui

Mon 24/11

19:25-06:25

1 stop18h 00m

£790

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Wed 20/8

17:15-18:15

2 stops43h 00m

Ko Samui

Tue 30/9

16:25-13:00

2 stops26h 35m

£815

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Sat 30/8

09:00-18:00

2 stops27h 00m

Ko Samui

Sat 13/9

15:25-06:40

2 stops21h 15m

£820

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Tue 2/9

08:00-11:55

3 stops21h 55m

£315

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Thu 18/9

18:40-21:10

2 stops20h 30m

£417

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Thu 18/9

10:15-11:10

1 stop18h 55m

£598

Flights are sorted by cheapest return flights first.

Deals found on 1/7

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 3 July 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.

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 3 July 2025.
Read reviews from past customers who have flown with Singapore Airlines, SWISS, 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.

Boarding

8.2

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

8.0

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sept 2024

SIN - DPS

Your state of the art Boeing 787 was so hot I was sweating 90% of the flight. There is no reason or excuse for that.

Boarding

8.2

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

8.0

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sept 2024

SIN - DPS

Your state of the art Boeing 787 was so hot I was sweating 90% of the flight. There is no reason or excuse for that.

Boarding

8.2

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

8.0

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sept 2024

SIN - DPS

Your state of the art Boeing 787 was so hot I was sweating 90% of the flight. There is no reason or excuse for that.

Boarding

8.2

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

8.0

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sept 2024

SIN - DPS

Your state of the art Boeing 787 was so hot I was sweating 90% of the flight. There is no reason or excuse for that.

Boarding

8.2

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

8.0

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sept 2024

SIN - DPS

Your state of the art Boeing 787 was so hot I was sweating 90% of the flight. There is no reason or excuse for that.

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 £730, SWISS will fly you from London Gatwick Airport to Ko Samui and back. In addition to SWISS, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Singapore Airlines and Turkish Airlines - these airlines can fly you to your destination from £790 and £815, 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 London Gatwick Airport?

Book flights to London Gatwick Airport if you plan to visit one of these locations
Ko Tao
Ko Pha Ngan

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 3 July 2025.
AirlineCheapestAverageFlexibilityOn-time
EmiratesCheapest£749Average£810FlexibilityNo cancel feeOn-time75%
Search Emirates flights
Qatar AirwaysCheapest£763Average£1,138FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Singapore AirlinesCheapest£769Average£989FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
British AirwaysCheapest£805Average£959FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.