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Cheap flights from London Gatwick Airport to Ko Samui from £336

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 15/6. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — USM
4 May — 11 May1
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 29 April 2025.

Round-trip from

£736

One-way from

£336

Popular in

August

Cheapest in

June

Average price

£1,268
5/10-16/10
  • 5/10-16/10
  • 4 total stops
  • 81h 25m total
  • London to Ko Samui
Search Deals
15/6
  • 15/6
  • 3 total stops
  • 40h 15m total
  • London to Ko Samui
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£83 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 29 April 2025.

Sun 5/1005:45LGW - USM
2 stops44h 05mMultiple Airlines
Thu 16/1019:25USM - LGW
2 stops37h 20mMultiple Airlines
Deal found 28/4£736
Mon 8/909:00LGW - USM
2 stops20h 55mQatar Airways
Sun 28/917:55USM - LGW
2 stops18h 45mQatar Airways
Deal found 28/4£814
Mon 12/521:45LGW - USM
2 stops29h 35mEmirates
Mon 19/517:50USM - LGW
2 stops31h 55mEmirates
Deal found 28/4£827
Tue 3/617:15LGW - USM
2 stops19h 15mTurkish Airlines
Tue 17/607:00USM - LGW
2 stops21h 20mTurkish Airlines
Deal found 28/4£828
Mon 8/910:15LGW - USM
1 stop18h 55mSingapore Airlines
Sun 28/917:50USM - LGW
1 stop18h 35mSingapore Airlines
Deal found 28/4£831
Tue 23/1221:15LGW - USM
1 stop16h 30mBritish Airways
Sun 11/119:00USM - LGW
1 stop17h 30mBritish Airways
Deal found 28/4£1,549

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 29 April 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 5/10

05:45-07:50

2 stops44h 05m

Ko Samui

Thu 16/10

19:25-02:45

2 stops37h 20m

£736

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Mon 8/9

09:00-11:55

2 stops20h 55m

Ko Samui

Sun 28/9

17:55-06:40

2 stops18h 45m

£814

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Mon 12/5

21:45-09:20

2 stops29h 35m

Ko Samui

Mon 19/5

17:50-19:45

2 stops31h 55m

£827

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Tue 3/6

17:15-18:30

2 stops19h 15m

Ko Samui

Tue 17/6

07:00-22:20

2 stops21h 20m

£828

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Mon 8/9

10:15-11:10

1 stop18h 55m

Ko Samui

Sun 28/9

17:50-06:25

1 stop18h 35m

£831

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Thu 7/8

18:40-21:10

2 stops20h 30m

Ko Samui

Thu 21/8

16:25-17:50

2 stops31h 25m

£2,419

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Sun 15/6

09:05-07:20

3 stops40h 15m

£336

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Mon 30/6

18:35-21:10

2 stops20h 35m

£775

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Mon 30/6

14:30-21:10

2 stops24h 40m

£886

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Tue 15/7

10:15-18:30

1 stop26h 15m

£1,101

Flights are sorted by cheapest return flights first.

Deals found on 28/4

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 £1,621). 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 29 April 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.

Rainfall in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ko Samui ranges from 58.0 - 490.0 inches per month. November is typically the wettest month, when rainfall can reach 490.0 mm. February is typically the driest time to visit Ko Samui when rainfall is around 58.0 mm.

Temperature in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ko Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 27.0 C).

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 29 April 2025.
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Entertainment

8.0

Food

7.7

Crew

8.6

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Singapore Airlines
8.1
Very Good
1,292 reviews
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Entertainment

8.0

Food

7.7

Crew

8.6

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Emirates
8.0
Very Good
3,213 reviews
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Entertainment

8.0

Food

7.7

Crew

8.6

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
SWISS
7.5
Good
1,588 reviews
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Entertainment

8.0

Food

7.7

Crew

8.6

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Qatar Airways
7.4
Good
3,561 reviews
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Entertainment

8.0

Food

7.7

Crew

8.6

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Turkish Airlines
7.3
Good
3,788 reviews
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Entertainment

8.0

Food

7.7

Crew

8.6

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

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 £745, 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 Qatar Airways and Emirates - these airlines can fly you to your destination from £814 and £827, respectively. You may be able to fly from London Gatwick Airport to Ko Samui for 24% 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 £1,621). 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

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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 29 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest£680Average£1,085FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
EmiratesCheapest£767Average£825FlexibilityNo cancel feeOn-time75%
Search Emirates flights
Qatar AirwaysCheapest£782Average£1,233FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
British AirwaysCheapest£825Average£940FlexibilityNo 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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