Find flights
When to book
Airlines
FAQs

Cheap flights from London Gatwick Airport to Koh Samui from £456

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 15/4. 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

Cheap flight deals from Gatwick to Koh Samui

Discover tips and strategies to find the most affordable flight options for your journey from Gatwick (LGW) to Koh 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 21 February 2025.

Round-trip from

£806

One-way from

£456

Popular in

April

Cheapest in

September

Average price

£898
1/3-8/3
  • 1/3-8/3
  • 6 total stops
  • 59h 45m total
  • London to Koh Samui
Search Deals
15/4
  • 15/4
  • 2 total stops
  • 25h 50m total
  • London to Koh Samui
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£15 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£27 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find flight deals from Gatwick to Koh Samui

Cheapest flights from Gatwick to Koh Samui
Explore the most affordable flight options available from Gatwick to Koh Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Mon 1/1210:30LGW - USM
2 stops22h 05mMultiple Airlines
Sun 7/1209:20USM - LGW
2 stops28h 10mMultiple Airlines
Deal found 20/2£795
Tue 27/510:15LGW - USM
1 stop18h 55mSingapore Airlines
Wed 4/608:45USM - LGW
1 stop27h 40mSingapore Airlines
Deal found 20/2£827
Tue 27/510:05LGW - USM
2 stops19h 35mEmirates
Wed 4/608:45USM - LGW
2 stops28h 35mEmirates
Deal found 20/2£863
Sat 24/509:00LGW - USM
2 stops43h 30mQatar Airways
Wed 11/614:30USM - LGW
2 stops22h 10mQatar Airways
Deal found 20/2£886
Tue 2/1221:15LGW - USM
1 stop30h 20mBritish Airways
Mon 8/1219:00USM - LGW
1 stop17h 30mBritish Airways
Deal found 20/2£1,004
Mon 7/418:35LGW - USM
2 stops33h 55mSWISS
Fri 25/409:15USM - LGW
2 stops38h 35mSWISS
Deal found 20/2£1,896

Find flights from Gatwick to Koh Samui within your budget

Customise your flight search to find flights from Gatwick to Koh 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 21 February 2025.

Fly from

Gatwick

Fly to

Koh Samui

Route

Depart

Return

Price

LondonKoh Samui

LGW - USM

LGWUSM

London Gatwick

Tue 27/5

10:15-11:10

1 stop18h 55m

Ko Samui

Wed 4/6

08:45-06:25

1 stop27h 40m

£827

LondonKoh Samui

LGW - USM

LGWUSM

London Gatwick

Wed 12/3

16:35-20:45

3 stops21h 10m

Ko Samui

Mon 12/5

10:55-06:40

2 stops25h 45m

£838

LondonKoh Samui

LGW - USM

LGWUSM

London Gatwick

Tue 27/5

10:05-11:40

2 stops19h 35m

Ko Samui

Wed 4/6

08:45-07:20

2 stops28h 35m

£863

LondonKoh Samui

LGW - USM

LGWUSM

London Gatwick

Sat 24/5

09:00-10:30

2 stops43h 30m

Ko Samui

Wed 11/6

14:30-06:40

2 stops22h 10m

£886

LondonKoh Samui

LGW - USM

LGWUSM

London Gatwick

Mon 21/4

22:00-20:30

1 stop16h 30m

Ko Samui

Sun 27/4

17:35-06:30

1 stop18h 55m

£1,626

LondonKoh Samui

LGW - USM

LGWUSM

London Gatwick

Mon 7/4

18:35-10:30

2 stops33h 55m

Ko Samui

Fri 25/4

09:15-17:50

2 stops38h 35m

£1,896

LondonKoh Samui

LGW - USM

LGWUSM

London Gatwick

Tue 15/4

12:35-20:25

2 stops25h 50m

£456

LondonKoh Samui

LGW - USM

LGWUSM

London Gatwick

Mon 12/5

14:30-11:40

2 stops39h 10m

£494

LondonKoh Samui

LGW - USM

LGWUSM

London Gatwick

Mon 4/8

10:15-18:30

1 stop26h 15m

£865

LondonKoh Samui

LGW - USM

LGWUSM

London Gatwick

Mon 24/3

18:45-21:05

2 stops19h 20m

£1,683

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 11 results
1
2

Best time to book a flight from Gatwick to Koh Samui

Have a flexible travel schedule? Discover the best time to fly to Koh 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.

Travel insights for flights from Gatwick to Koh Samui

Get recent, data-driven insights about flights from Gatwick to Koh Samui including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from London Gatwick Airport to Koh Samui?

Currently, August is the cheapest month in which you can book a flight from London Gatwick Airport to Koh Samui (average of £1,019). Flying from London Gatwick Airport to Koh Samui in December is currently the most expensive (average of £1,594). 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 Koh Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 February 2025.

It’s optimal to fly from London Gatwick Airport to Koh Samui in the morning. By choosing this option you can save up to 38% on the cost of your flight, compared to a flight at midday.

Rainfall in Koh Samui by month

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

In terms of precipitation, rainfall in Koh 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 Koh Samui when rainfall is around 58.0 mm.

Temperature in Koh Samui by month

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

If weather is an important factor for your trip to Koh 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 Koh Samui

Get insights into the airlines that provide service to Koh 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 Koh Samui. Reviews last updated 21 February 2025.
Emirates
8.1
Very Good
3,279 reviews
Check prices

Crew

8.3

Entertainment

8.2

Overall

8.1

Food

7.9

Boarding

8.1

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

Emirates
8.1
Very Good
3,279 reviews
Emirates
8.1
Very Good
3,279 reviews
Check prices

Crew

8.3

Entertainment

8.2

Overall

8.1

Food

7.9

Boarding

8.1

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

Singapore Airlines
8.1
Very Good
1,299 reviews
Emirates
8.1
Very Good
3,279 reviews
Check prices

Crew

8.3

Entertainment

8.2

Overall

8.1

Food

7.9

Boarding

8.1

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

SWISS
7.5
Good
1,568 reviews
Emirates
8.1
Very Good
3,279 reviews
Check prices

Crew

8.3

Entertainment

8.2

Overall

8.1

Food

7.9

Boarding

8.1

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

Qatar Airways
7.4
Good
3,610 reviews
Emirates
8.1
Very Good
3,279 reviews
Check prices

Crew

8.3

Entertainment

8.2

Overall

8.1

Food

7.9

Boarding

8.1

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

British Airways
6.6
Okay
6,762 reviews
Emirates
8.1
Very Good
3,279 reviews
Check prices

Crew

8.3

Entertainment

8.2

Overall

8.1

Food

7.9

Boarding

8.1

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

Related info for your journey

Find useful and relevant information for your journey from Gatwick to Koh 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 Koh Samui from London Gatwick?

    If you book a flight to Koh 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 Koh Samui. There are 0 flights from London Gatwick to Ko Samui per day from 5 different airlines.

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

    According to our current data, Emirates (£957), Qatar Airways (£1,092), and Singapore Airlines (£1,125) offers the cheapest pricing from London Gatwick Airport to Koh Samui. These flights start at 8% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from London Gatwick Airport to Koh Samui one-way?

    To fly one-way, consider booking your trip with Emirates, which is currently one of the cheapest options available, starting at £494. Singapore Airlines flights start at £1,092 while deals on SWISS start at £1,683 one-way.

  • Can I find deals for flights from Gatwick to Koh Samui that include hotel bookings?

    Yes. In addition to deals on Gatwick to Koh Samui flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Gatwick to Koh Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gatwick to Koh Samui.

  • Can I find deals for business class flights from Gatwick to Koh Samui?

    Yes. Cheapflights offers flight deals from Gatwick to Koh 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 Koh Samui?

    Currently, August is the cheapest month in which you can book a flight from London Gatwick Airport to Koh Samui (average of £1,019). Flying from London Gatwick Airport to Koh Samui in December is currently the most expensive (average of £1,594). 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.

Alternative routes for Gatwick to Koh Samui

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Suvarnabhumi flights
Gatwick to Suvarnabhumi flights
London City to Suvarnabhumi flights
Stansted to Suvarnabhumi flights
Heathrow to Don Mueang Intl flights
Heathrow to Phuket City flights
Gatwick to Phuket City flights
Stansted to Phuket City flights
London City to Phuket City flights
Luton to Suvarnabhumi flights
Heathrow to Koh Samui flights
Gatwick to Don Mueang Intl flights
London City to Koh Samui flights
Stansted to Koh Samui flights
Heathrow to Krabi flights
Stansted to Krabi flights
Gatwick to Krabi flights
Heathrow to Chiang Mai flights
Luton to Phuket City flights
Gatwick to Chiang Mai flights
Stansted to Chiang Mai flights
London City to Chiang Mai flights
London City to Krabi flights
Luton to Koh Samui flights
Heathrow to Rayong flights
Gatwick to Rayong flights
Southend to Suvarnabhumi flights
Heathrow to Udon Thani flights
Heathrow to Surat Thani flights
Heathrow to Hat Yai flights
Gatwick to Trat flights
Heathrow to Trat flights
Luton to Krabi flights
Stansted to Trat flights
Gatwick to Surat Thani flights
Heathrow to Chiang Rai flights
Gatwick to Chiang Rai flights
Luton to Chiang Mai flights
Gatwick to Khon Kaen flights
London City to Don Mueang Intl flights
Southend to Krabi flights

Top 5 airlines flying from Gatwick to Koh Samui

Discover the top 5 airlines that operate flights from Gatwick to Koh 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 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest£699Average£1,149FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
EVA AirCheapest£763Average£898FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
EmiratesCheapest£812Average£875FlexibilityNo cancel feeOn-time75%
Search Emirates flights
Qatar AirwaysCheapest£827Average£1,327FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
British AirwaysCheapest£873Average£995FlexibilityNo 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 Koh Samui?

When you search for this flight from Gatwick to Koh 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 Koh 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 Koh Samui from Gatwick.

Can Cheapflights find flights from Gatwick to Koh Samui with no change fees?

Yes! Cheapflights helps users easily find flights from Gatwick to Koh Samui with no change fees.

Can Cheapflights notify me if prices for flights from Gatwick to Koh Samui become cheaper?

Yes! Start tracking prices for Gatwick to Koh 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.