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Cheap flights from London Gatwick Airport to Ko Samui from £344

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — USM
18 Jun — 25 Jun1
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 13 June 2025.

Round-trip from

£717

One-way from

£344

Popular in

April

Cheapest in

October

Average price

£808
SWISS
  • SWISS
  • 2/9-12/9
  • 4 total stops
  • 76h 15m total
  • London to Ko Samui
Search Deals
5/9
  • 5/9
  • 3 total stops
  • 40h 10m total
  • London to Ko Samui
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 13 June 2025.

Sun 16/1106:35LGW - USM
2 stops19h 45mMultiple Airlines
Fri 28/1108:30USM - LGW
3 stops44h 35mMultiple Airlines
Deal found 11/6£712
Fri 5/1221:15LGW - USM
1 stop16h 30mBritish Airways
Fri 19/1219:00USM - LGW
1 stop17h 30mBritish Airways
Deal found 12/6£712
Tue 2/918:35LGW - USM
2 stops37h 10mSWISS
Fri 12/908:45USM - LGW
2 stops39h 05mSWISS
Deal found 12/6£717
Fri 5/917:15LGW - USM
2 stops21h 35mTurkish Airlines
Mon 29/919:30USM - LGW
2 stops26h 45mTurkish Airlines
Deal found 11/6£774
Wed 3/911:25LGW - USM
2 stops20h 20mGulf Air
Sat 4/1008:45USM - LGW
2 stops28h 10mGulf Air
Deal found 11/6£787
Fri 5/910:15LGW - USM
1 stop26h 15mSingapore Airlines
Mon 29/908:45USM - LGW
1 stop27h 40mSingapore Airlines
Deal found 11/6£791
Tue 2/910:05LGW - USM
2 stops19h 35mEmirates
Mon 29/917:50USM - LGW
2 stops24h 45mEmirates
Deal found 11/6£815
Sat 15/1108:55LGW - USM
2 stops16h 45mQatar Airways
Fri 28/1115:35USM - LGW
2 stops21h 30mQatar Airways
Deal found 11/6£874

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 13 June 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 16/11

06:35-09:20

2 stops19h 45m

Ko Samui

Fri 28/11

08:30-22:05

3 stops44h 35m

£712

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Fri 5/12

21:15-20:45

1 stop16h 30m

Ko Samui

Fri 19/12

19:00-05:30

1 stop17h 30m

£712

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Tue 2/9

18:35-13:45

2 stops37h 10m

Ko Samui

Fri 12/9

08:45-17:50

2 stops39h 05m

£717

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Fri 5/9

17:15-20:50

2 stops21h 35m

Ko Samui

Mon 29/9

19:30-16:15

2 stops26h 45m

£774

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Wed 3/9

11:25-13:45

2 stops20h 20m

Ko Samui

Sat 4/10

08:45-06:55

2 stops28h 10m

£787

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Fri 5/9

10:15-18:30

1 stop26h 15m

Ko Samui

Mon 29/9

08:45-06:25

1 stop27h 40m

£791

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Tue 2/9

10:05-11:40

2 stops19h 35m

Ko Samui

Mon 29/9

17:50-12:35

2 stops24h 45m

£815

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Sat 15/11

08:55-08:40

2 stops16h 45m

Ko Samui

Fri 28/11

15:35-06:05

2 stops21h 30m

£874

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Fri 5/9

09:10-07:20

3 stops40h 10m

£344

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Fri 5/9

10:15-18:30

1 stop26h 15m

£567

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 12 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, 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 £1,667). 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 13 June 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 13 June 2025.
Emirates
8.1
Very Good
3,265 reviews
Check prices

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
8.0
Excellent

Hoss,Mar 2025

TPE - DXB

One of Emirate claim to fame use to be excellent crew. But I think that has faded just a bit. While the first leg of my journey was impeccable, the second was good but not amazing. A few of the crew could have use a bit of smiley face, plus the sandwich served after take off was not good at all. I would have not served it at all.
Emirates
8.1
Very Good
3,265 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
8.0
Excellent

Hoss,Mar 2025

TPE - DXB

One of Emirate claim to fame use to be excellent crew. But I think that has faded just a bit. While the first leg of my journey was impeccable, the second was good but not amazing. A few of the crew could have use a bit of smiley face, plus the sandwich served after take off was not good at all. I would have not served it at all.
Singapore Airlines
8.1
Very Good
1,304 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
8.0
Excellent

Hoss,Mar 2025

TPE - DXB

One of Emirate claim to fame use to be excellent crew. But I think that has faded just a bit. While the first leg of my journey was impeccable, the second was good but not amazing. A few of the crew could have use a bit of smiley face, plus the sandwich served after take off was not good at all. I would have not served it at all.
SWISS
7.5
Good
1,624 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
8.0
Excellent

Hoss,Mar 2025

TPE - DXB

One of Emirate claim to fame use to be excellent crew. But I think that has faded just a bit. While the first leg of my journey was impeccable, the second was good but not amazing. A few of the crew could have use a bit of smiley face, plus the sandwich served after take off was not good at all. I would have not served it at all.
Qatar Airways
7.4
Good
3,584 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
8.0
Excellent

Hoss,Mar 2025

TPE - DXB

One of Emirate claim to fame use to be excellent crew. But I think that has faded just a bit. While the first leg of my journey was impeccable, the second was good but not amazing. A few of the crew could have use a bit of smiley face, plus the sandwich served after take off was not good at all. I would have not served it at all.
Turkish Airlines
7.3
Good
3,849 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
8.0
Excellent

Hoss,Mar 2025

TPE - DXB

One of Emirate claim to fame use to be excellent crew. But I think that has faded just a bit. While the first leg of my journey was impeccable, the second was good but not amazing. A few of the crew could have use a bit of smiley face, plus the sandwich served after take off was not good at all. I would have not served it at all.

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 £717, 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 Turkish Airlines and Gulf Air - these airlines can fly you to your destination from £774 and £787, respectively. You may be able to fly from London Gatwick Airport to Ko Samui for 27% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with Singapore Airlines, which is currently one of the cheapest options available, starting at £567. SWISS flights start at £851 while deals on Emirates start at £5,157 one-way.

  • 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 £1,667). 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

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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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest£668Average£988FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
EmiratesCheapest£754Average£813FlexibilityNo cancel feeOn-time75%
Search Emirates flights
Qatar AirwaysCheapest£768Average£1,213FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
British AirwaysCheapest£811Average£966FlexibilityNo 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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