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Cheap flights from London Gatwick Airport to Ko Samui from £376

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 13/1. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — USM
11 1月 — 18 1月1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Gatwick to Ko Samui

Enter your travel dates to find the best prices.

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 12 12月 2025.

週一 29/1217:00LGW - USM
2 stops42h 50mMultiple Airlines
週三 21/107:15USM - LGW
1 stop18h 15mMultiple Airlines
Deal found 11/12£939
週一 29/1217:00LGW - USM
2 stops42h 50mMultiple Airlines
週四 22/107:55USM - LGW
1 stop17h 25mMultiple Airlines
Deal found 11/12£1,012
週一 29/1217:00LGW - USM
2 stops42h 50mMultiple Airlines
週六 24/107:55USM - LGW
1 stop17h 25mMultiple Airlines
Deal found 11/12£1,033
週一 29/1217:00LGW - USM
2 stops42h 50mMultiple Airlines
週一 26/109:00USM - LGW
1 stop16h 30mMultiple Airlines
Deal found 11/12£1,039
週四 11/1208:30LGW - USM
3 stops29h 20mMultiple Airlines
週五 9/108:55USM - LGW
3 stops32h 15mMultiple Airlines
Deal found 10/12£1,069
週一 29/1217:00LGW - USM
2 stops41h 10mMultiple Airlines
週一 12/120:40USM - LGW
1 stop24h 45mMultiple Airlines
Deal found 11/12£1,096
週四 25/1213:25LGW - USM
2 stops35h 35mMultiple Airlines
週三 21/109:00USM - LGW
1 stop16h 30mMultiple Airlines
Deal found 11/12£1,128
週日 28/1217:00LGW - USM
2 stops41h 10mMultiple Airlines
週三 21/107:15USM - LGW
1 stop18h 15mMultiple Airlines
Deal found 11/12£1,176
週四 25/1213:25LGW - USM
2 stops35h 35mMultiple Airlines
週四 22/107:55USM - LGW
1 stop17h 25mMultiple Airlines
Deal found 11/12£1,193
週五 26/1216:50LGW - USM
2 stops41h 20mMultiple Airlines
週三 21/107:15USM - LGW
1 stop18h 15mMultiple Airlines
Deal found 11/12£1,194
週二 23/1208:50LGW - USM
2 stops27h 00mMultiple Airlines
週三 21/107:15USM - LGW
1 stop18h 15mMultiple Airlines
Deal found 11/12£1,195
週四 25/1213:25LGW - USM
2 stops35h 35mMultiple Airlines
週一 26/109:00USM - LGW
1 stop16h 30mMultiple Airlines
Deal found 11/12£1,218

Find 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 12 12月 2025.

Round-trip from

£736

One-way from

£376

Popular in

August

Cheapest in

June

Average price

£1,072
2/3-9/3
  • 2/3-9/3
  • 6 total stops
  • 72h 25m total
  • London to Ko Samui
Search Deals
13/1
  • 13/1
  • 2 total stops
  • 27h 50m total
  • London to Ko Samui
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£79 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 12 12月 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

週一 4/5

10:15-17:20

1 stop25h 05m

Ko Samui

週五 15/5

19:45-06:25

1 stop16h 40m

£813

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

週四 23/4

10:15-17:20

1 stop25h 05m

Ko Samui

週日 10/5

19:45-06:25

1 stop16h 40m

£839

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

週一 2/3

06:30-10:40

3 stops21h 10m

Ko Samui

週三 29/4

06:00-18:35

2 stops18h 35m

£847

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

週二 3/3

06:25-07:45

2 stops18h 20m

Ko Samui

週二 5/5

20:35-09:55

2 stops19h 20m

£879

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

週四 4/6

09:00-10:30

2 stops19h 30m

Ko Samui

週一 8/6

17:55-06:40

2 stops18h 45m

£886

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

週一 4/5

14:55-15:45

2 stops18h 50m

Ko Samui

週五 15/5

17:25-06:40

2 stops19h 15m

£889

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

週二 28/4

09:00-10:30

2 stops19h 30m

Ko Samui

週二 12/5

17:25-06:40

2 stops19h 15m

£917

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

週五 1/5

07:00-08:15

2 stops19h 15m

Ko Samui

週三 13/5

20:35-09:55

2 stops19h 20m

£956

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

週三 11/3

06:25-07:30

2 stops18h 05m

Ko Samui

週二 14/4

19:55-09:55

2 stops20h 00m

£987

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

週三 21/1

09:20-18:50

1 stop26h 30m

Ko Samui

週日 15/2

19:45-06:25

1 stop17h 40m

£1,024

Flights are sorted by cheapest return flights first.

Deals found on 11/12

Showing 1-10 of 19 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, December is the cheapest month in which you can book a flight from London Gatwick Airport to Ko Samui (average of £343). Flying from London Gatwick Airport to Ko Samui in August is currently the most expensive (average of £1,136). 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 12 12月 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 47% on the cost of your flight, compared to a flight in the afternoon.

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 12 12月 2025.
Read reviews from past customers who have flown with Singapore Airlines, Qatar Airways, andBritish 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.
Singapore Airlines
8.1
Very Good
1,412 reviews
Check prices

Entertainment

8.0

Overall

8.1

Comfort

8.0

Boarding

8.3

Crew

8.6

Food

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Singapore Airlines
8.1
Very Good
1,412 reviews
Singapore Airlines
8.1
Very Good
1,412 reviews
Check prices

Entertainment

8.0

Overall

8.1

Comfort

8.0

Boarding

8.3

Crew

8.6

Food

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Qatar Airways
7.4
Good
3,677 reviews
Singapore Airlines
8.1
Very Good
1,412 reviews
Check prices

Entertainment

8.0

Overall

8.1

Comfort

8.0

Boarding

8.3

Crew

8.6

Food

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
British Airways
6.7
Okay
7,571 reviews
Singapore Airlines
8.1
Very Good
1,412 reviews
Check prices

Entertainment

8.0

Overall

8.1

Comfort

8.0

Boarding

8.3

Crew

8.6

Food

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

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 3 different airlines.

  • How long is the flight from London Gatwick Airport to Ko Samui?

    Departing from London Gatwick Airport to Ko Samui will take you 19h 30m. The distance from London Gatwick Airport to Ko Samui is about 6138 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    Currently priced at £755, Qatar Airways will fly you from London Gatwick Airport to Ko Samui and back. In addition to Qatar Airways, 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 £785 and £812, respectively. You may be able to fly from London Gatwick Airport to Ko Samui for 20% 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, December is the cheapest month in which you can book a flight from London Gatwick Airport to Ko Samui (average of £343). Flying from London Gatwick Airport to Ko Samui in August is currently the most expensive (average of £1,136). 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

Browse thousands of different options on Cheapflights for your next trip

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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 3 airlines flying from Gatwick to Ko Samui

Discover the top 3 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 12 12月 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest£755Average£1,129FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Singapore AirlinesCheapest£785Average£942FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
British AirwaysCheapest£812Average£990FlexibilityNo 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.

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