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Cheap flights from London Gatwick Airport to Ko Samui from £343

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 21/2. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — USM
26 Feb — 5 Mar1
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 27 January 2026.

Tue 17/308:10
LGW
-
USM
3 stops26h 20m
Multiple Airlines
Wed 1/417:55
USM
-
LGW
3 stops34h 50m
Multiple Airlines
Deal found 26/1£732
Sun 11/1011:25
LGW
-
USM
2 stops20h 20m
Multiple Airlines
Thu 22/1013:30
USM
-
LGW
2 stops23h 25m
Multiple Airlines
Deal found 26/1£734
Mon 2/317:00
LGW
-
USM
2 stops32h 25m
Multiple Airlines
Tue 10/314:30
USM
-
LGW
2 stops23h 00m
Multiple Airlines
Deal found 25/1£739
Sat 7/317:00
LGW
-
USM
2 stops32h 25m
Multiple Airlines
Sun 22/314:30
USM
-
LGW
2 stops23h 00m
Multiple Airlines
Deal found 25/1£740
Sun 26/410:25
LGW
-
USM
2 stops28h 45m
Air France
Mon 11/516:25
USM
-
LGW
2 stops23h 15m
Air France
Deal found 25/1£744
Mon 11/510:15
LGW
-
USM
1 stop25h 05m
Singapore Airlines
Sat 16/519:45
USM
-
LGW
1 stop17h 10m
Singapore Airlines
Deal found 26/1£745
Sat 12/922:15
LGW
-
USM
1 stop17h 20m
Multiple Airlines
Sun 27/918:25
USM
-
LGW
1 stop17h 30m
Multiple Airlines
Deal found 26/1£748
Wed 4/310:30
LGW
-
USM
2 stops24h 00m
Multiple Airlines
Wed 18/307:55
USM
-
LGW
1 stop17h 35m
Multiple Airlines
Deal found 25/1£749
Wed 18/210:35
LGW
-
USM
2 stops24h 40m
Multiple Airlines
Wed 11/321:10
USM
-
LGW
2 stops40h 10m
Multiple Airlines
Deal found 25/1£751
Sun 1/310:30
LGW
-
USM
2 stops27h 20m
Multiple Airlines
Mon 9/319:00
USM
-
LGW
2 stops26h 00m
Multiple Airlines
Deal found 26/1£753
Sun 8/310:35
LGW
-
USM
2 stops24h 40m
Multiple Airlines
Thu 12/308:15
USM
-
LGW
2 stops29h 05m
Multiple Airlines
Deal found 25/1£755

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 27 January 2026.

Round-trip from

£732

One-way from

£343

Popular in

August

Cheapest in

May

Average price

£975
17/3-1/4
  • 17/3-1/4
  • 6 total stops
  • 61h 10m total
  • London to Ko Samui
Search Deals
21/2
  • 21/2
  • 3 total stops
  • 39h 10m total
  • London to Ko Samui
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£74 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 January 2026
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 27 January 2026.
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

Fri 17/4

11:25-12:45

2 stops19h 20m

Ko Samui

Sat 2/5

15:20-06:55

2 stops21h 35m

£772

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Mon 4/5

07:00-08:35

2 stops19h 35m

Ko Samui

Fri 15/5

07:50-22:25

2 stops20h 35m

£780

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Thu 12/3

09:15-17:50

2 stops25h 35m

Ko Samui

Mon 23/3

09:00-18:30

1 stop16h 30m

£817

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Sun 8/3

16:10-13:05

1 stop13h 55m

Ko Samui

Thu 26/3

07:55-18:20

1 stop17h 25m

£836

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Sun 26/4

10:15-21:10

1 stop28h 55m

Ko Samui

Mon 11/5

08:40-06:55

1 stop28h 15m

£855

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Tue 24/3

06:15-18:25

3 stops29h 10m

Ko Samui

Wed 8/4

14:30-08:45

2 stops24h 15m

£871

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Sat 23/5

22:15-20:30

1 stop16h 15m

Ko Samui

Wed 27/5

18:25-05:55

1 stop17h 30m

£873

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Sun 8/3

21:15-19:50

1 stop15h 35m

Ko Samui

Tue 24/3

17:05-05:30

1 stop19h 25m

£881

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Sat 21/2

10:15-08:25

3 stops39h 10m

£343

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Thu 19/2

10:20-20:50

3 stops51h 30m

£348

Flights are sorted by cheapest return flights first.

Deals found on 26/1

Showing 1-10 of 17 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, January is the cheapest month in which you can book a flight from London Gatwick Airport to Ko Samui (average of £246). Flying from London Gatwick Airport to Ko Samui in August is currently the most expensive (average of £1,112). 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.

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 27 January 2026.
Read reviews from past customers who have flown with Singapore Airlines, Emirates, 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.
Singapore Airlines
8.2
Very Good
1,439 reviews
Check prices

Boarding

8.3

Comfort

8.0

Entertainment

8.0

Crew

8.6

Overall

8.2

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
8.2
Very Good
1,439 reviews
Singapore Airlines
8.2
Very Good
1,439 reviews
Check prices

Boarding

8.3

Comfort

8.0

Entertainment

8.0

Crew

8.6

Overall

8.2

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
Emirates
8.1
Very Good
3,488 reviews
Singapore Airlines
8.2
Very Good
1,439 reviews
Check prices

Boarding

8.3

Comfort

8.0

Entertainment

8.0

Crew

8.6

Overall

8.2

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
3,732 reviews
Singapore Airlines
8.2
Very Good
1,439 reviews
Check prices

Boarding

8.3

Comfort

8.0

Entertainment

8.0

Crew

8.6

Overall

8.2

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
7,702 reviews
Singapore Airlines
8.2
Very Good
1,439 reviews
Check prices

Boarding

8.3

Comfort

8.0

Entertainment

8.0

Crew

8.6

Overall

8.2

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 4 different airlines.

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

    Currently priced at £739, 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 Emirates and Singapore Airlines - these airlines can fly you to your destination from £749 and £784, 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, January is the cheapest month in which you can book a flight from London Gatwick Airport to Ko Samui (average of £246). Flying from London Gatwick Airport to Ko Samui in August is currently the most expensive (average of £1,112). 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 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 27 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest£739Average£945FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
EmiratesCheapest£749Average£865FlexibilityNo cancel feeOn-time75%
Search Emirates flights
Singapore AirlinesCheapest£784Average£923FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
British AirwaysCheapest£795Average£973FlexibilityNo 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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