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Cheap flights from London Gatwick Airport to Ko Samui from £297

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 25/1. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — USM
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 31 October 2025.

Mon 24/1106:20LGW - USM
2 stops18h 50mMultiple Airlines
Wed 3/1219:00USM - LGW
3 stops35h 55mMultiple Airlines
Deal found 29/10£704
Tue 18/1110:30LGW - USM
2 stops39h 50mMultiple Airlines
Tue 2/1212:30USM - LGW
2 stops32h 30mMultiple Airlines
Deal found 30/10£710
Wed 26/1116:00LGW - USM
1 stop32h 45mMultiple Airlines
Sun 7/1216:35USM - LGW
1 stop32h 55mMultiple Airlines
Deal found 30/10£717
Fri 28/1110:35LGW - USM
2 stops24h 40mMultiple Airlines
Sat 6/1213:25USM - LGW
2 stops23h 55mMultiple Airlines
Deal found 30/10£719
Sat 29/1113:55LGW - USM
3 stops35h 30mMultiple Airlines
Wed 21/119:45USM - LGW
3 stops28h 00mMultiple Airlines
Deal found 30/10£731
Fri 28/1106:25LGW - USM
2 stops18h 45mMultiple Airlines
Fri 5/1207:00USM - LGW
2 stops32h 35mMultiple Airlines
Deal found 29/10£738
Sun 16/1116:10LGW - USM
1 stop18h 55mMultiple Airlines
Thu 27/1108:30USM - LGW
1 stop16h 50mMultiple Airlines
Deal found 29/10£749
Sun 2/1110:35LGW - USM
2 stops25h 15mMultiple Airlines
Tue 2/1218:15USM - LGW
3 stops36h 40mMultiple Airlines
Deal found 29/10£755
Sun 9/1110:35LGW - USM
2 stops25h 15mMultiple Airlines
Sun 23/1117:40USM - LGW
1 stop31h 50mMultiple Airlines
Deal found 30/10£770
Sat 13/1206:55LGW - USM
3 stops30h 55mMultiple Airlines
Sat 20/1218:15USM - LGW
3 stops36h 25mMultiple Airlines
Deal found 29/10£771

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 31 October 2025.

Round-trip from

£700

One-way from

£297

Popular in

August

Cheapest in

June

Average price

£865
17/1-26/1
  • 17/1-26/1
  • 6 total stops
  • 69h 25m total
  • London to Ko Samui
Search Deals
25/1
  • 25/1
  • 2 total stops
  • 34h 25m total
  • London to Ko Samui
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£70 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 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 31 October 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

Sat 17/1

06:10-19:45

3 stops30h 35m

Ko Samui

Mon 26/1

15:50-23:40

3 stops38h 50m

£700

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Fri 28/11

10:35-18:15

2 stops24h 40m

Ko Samui

Sat 6/12

13:25-06:20

2 stops23h 55m

£719

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Sat 7/3

13:55-07:10

2 stops34h 15m

Ko Samui

Sat 28/3

07:00-18:20

1 stop18h 20m

£741

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Thu 26/2

08:40-17:50

2 stops26h 10m

Ko Samui

Fri 13/3

14:30-05:55

2 stops22h 25m

£864

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Sat 18/4

10:15-16:45

1 stop24h 30m

Ko Samui

Sat 9/5

17:40-06:25

1 stop18h 45m

£870

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Tue 28/4

10:15-21:10

1 stop28h 55m

Ko Samui

Tue 12/5

16:25-06:25

1 stop20h 00m

£883

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Thu 26/2

21:15-19:50

1 stop15h 35m

Ko Samui

Fri 13/3

19:10-05:30

1 stop17h 20m

£902

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Sun 25/1

21:15-19:50

1 stop15h 35m

Ko Samui

Sun 8/2

18:30-05:30

1 stop18h 00m

£910

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Mon 12/1

09:00-11:55

2 stops19h 55m

Ko Samui

Wed 1/4

09:15-06:40

2 stops27h 25m

£932

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Fri 6/3

09:20-18:50

1 stop26h 30m

Ko Samui

Sat 14/3

13:55-06:25

2 stops23h 30m

£955

Flights are sorted by cheapest return flights first.

Deals found on 29/10

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 £330). Flying from London Gatwick Airport to Ko Samui in August is currently the most expensive (average of £1,154). 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 31 October 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 31 October 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
1,388 reviews
Check prices

Overall

8.1

Boarding

8.3

Comfort

8.0

Crew

8.6

Food

7.7

Entertainment

8.0

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
1,388 reviews
Singapore Airlines
8.1
Very Good
1,388 reviews
Check prices

Overall

8.1

Boarding

8.3

Comfort

8.0

Crew

8.6

Food

7.7

Entertainment

8.0

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
3,661 reviews
Singapore Airlines
8.1
Very Good
1,388 reviews
Check prices

Overall

8.1

Boarding

8.3

Comfort

8.0

Crew

8.6

Food

7.7

Entertainment

8.0

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
7,488 reviews
Singapore Airlines
8.1
Very Good
1,388 reviews
Check prices

Overall

8.1

Boarding

8.3

Comfort

8.0

Crew

8.6

Food

7.7

Entertainment

8.0

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 24h 30m. The distance from London Gatwick Airport to Ko Samui is about 6138 mi.

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

    Currently priced at £798, Singapore Airlines will fly you from London Gatwick Airport to Ko Samui and back. In addition to Singapore Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Qatar Airways and British Airways - these airlines can fly you to your destination from £821 and £825, respectively. You may be able to fly from London Gatwick Airport to Ko Samui for 21% 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 £330). Flying from London Gatwick Airport to Ko Samui in August is currently the most expensive (average of £1,154). 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 31 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest£798Average£1,019FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Qatar AirwaysCheapest£821Average£1,157FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
British AirwaysCheapest£825Average£1,009FlexibilityNo cancel feeOn-time70%
Search British 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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