What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to Ko Samui flights?

Over the past year, JetBlue have had the lowest number of delays on this route, with just 11% of flights being delayed.

Which airport typically offers the quickest stopover for flights from London Gatwick Airport to Ko Samui?

Flights via Bangkok (BKK) offer the fastest connection on this route, with an average stopover time of 2h 38m.

How often are flights from London to Ko Samui delayed?

About 11% of weekly flights between London and Ko Samui have experienced delays in the past year, with the average delay time being 86 minutes.

What’s the cheapest stopover airport for flights from London Gatwick Airport to Ko Samui?

Shanghai (PVG) is the most affordable one-stop option, with an average return flight price of £439.

What’s the fastest stopover option from London Gatwick Airport to Ko Samui?

Flights via Bangkok (BKK) have the shortest average one-way travel time for one-stop routes: 15h 48m.

What is the most punctual flight time for London to Ko Samui flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What’s the top stopover airport for flights from London Gatwick Airport to Ko Samui?

Bangkok (BKK) – chosen by Cheapflights users on 66% of one-stop itineraries from London Gatwick Airport to Ko Samui on Cheapflights.

How long is the flight from London Gatwick Airport to Ko Samui?

Departing from London Gatwick Airport to Ko Samui will take you 19h 30m. The distance from London Gatwick Airport to Ko Samui is about 6138 mi. Both multi-stop and direct flights can be found to your destination and back.

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

Currently priced at £755, 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 Singapore Airlines and British Airways - these airlines can fly you to your destination from £801 and £812, respectively. You may be able to fly from London Gatwick Airport to Ko Samui for 22% less than the average price by searching for these airlines.

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.

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).

What are the most popular airlines that fly from London Gatwick Airport to Ko Samui?

British Airways, Qatar Airways and Singapore Airlines are the most popular airlines when flying from London Gatwick Airport to Ko Samui.

What is the cheapest time of day to fly from LGW to USM?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Gatwick Airport to Ko Samui as you normally would.

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.

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.

£329+ Cheap Flights from London Gatwick Airport to Ko Samui

Q: How much does it cost for a return flight from London Gatwick Airport to Ko Samui?

Airfare is below average for this route at the moment. London Gatwick Airport to Ko Samui flights typically cost between £966 and £830 in May. The cheapest return flight price found within the last 3 days was £763 on Multiple Airlines (9 May-16 May).

Cheap flight deals from Gatwick to Ko Samui

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 26 March 2026.

Sat 9/509:00

LGW

USM

2 stops26h 05m

Multiple Airlines

Sat 16/515:30

USM

LGW

2 stops21h 10m

Multiple Airlines

Deal found 25/3£763

Tue 26/509:00

LGW

USM

2 stops19h 30m

Qatar Airways

Wed 24/614:30

USM

LGW

2 stops22h 10m

Qatar Airways

Deal found 23/3£763

Sat 25/409:00

LGW

USM

2 stops29h 30m

Multiple Airlines

Thu 7/506:00

USM

LGW

2 stops37h 25m

Multiple Airlines

Deal found 26/3£765

Sun 1/1109:25

LGW

USM

3 stops25h 05m

Multiple Airlines

Sun 15/1112:30

USM

LGW

3 stops24h 55m

Multiple Airlines

Deal found 26/3£766

Thu 29/1007:50

LGW

USM

2 stops29h 25m

Multiple Airlines

Sat 14/1121:10

USM

LGW

1 stop24h 15m

Multiple Airlines

Deal found 24/3£768

Thu 20/810:25

LGW

USM

3 stops27h 20m

Multiple Airlines

Mon 19/1007:50

USM

LGW

3 stops29h 30m

Multiple Airlines

Deal found 23/3£769

Tue 26/509:00

LGW

USM

2 stops19h 30m

Qatar Airways

Sat 27/617:55

USM

LGW

2 stops18h 45m

Qatar Airways

Deal found 24/3£771

Wed 6/509:00

LGW

USM

2 stops19h 30m

Multiple Airlines

Wed 13/515:25

USM

LGW

2 stops21h 15m

Multiple Airlines

Deal found 22/3£774

Fri 9/1010:25

LGW

USM

3 stops27h 20m

Multiple Airlines

Fri 23/1006:55

USM

LGW

3 stops30h 30m

Multiple Airlines

Deal found 24/3£774

Fri 6/1109:25

LGW

USM

3 stops22h 05m

Multiple Airlines

Sun 15/1112:25

USM

LGW

3 stops25h 00m

Multiple Airlines

Deal found 23/3£777

Sat 30/509:00

LGW

USM

2 stops29h 25m

Multiple Airlines

Sat 27/608:00

USM

LGW

2 stops28h 40m

Multiple Airlines

Deal found 26/3£778

Sun 19/410:40

LGW

USM

2 stops23h 50m

Gulf Air

Thu 7/514:00

USM

LGW

2 stops22h 55m

Gulf Air

Deal found 22/3£779

Find flight deals from Gatwick to Ko Samui

Round-trip from	£763
One-way from	£329
Popular in	December
Cheapest in	June
Average price	£974

9/5-16/5
4 total stops
47h 15m total
London to Ko Samui

Search Deals

16/9
2 total stops
36h 35m total
London to Ko Samui

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£101 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£33 potential savings vs. average return price).

Search Deals

Average for round-trip flights in March 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Gatwick Airport to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Wed 3/6

10:40-16:30

2 stops23h 50m

Ko Samui

Sat 27/6

14:00-06:55

2 stops22h 55m

£804

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Mon 1/6

09:00-11:55

2 stops20h 55m

Ko Samui

Thu 25/6

14:30-06:40

2 stops22h 10m

£810

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Mon 1/6

09:00-10:30

2 stops19h 30m

Ko Samui

Sat 27/6

14:30-06:40

2 stops22h 10m

£834

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Fri 29/5

09:00-11:55

2 stops20h 55m

Ko Samui

Sat 27/6

14:30-06:40

2 stops22h 10m

£860

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Fri 1/5

09:00-10:30

2 stops19h 30m

Ko Samui

Wed 13/5

15:25-06:40

2 stops21h 15m

£886

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Sat 30/5

09:00-10:30

2 stops19h 30m

Ko Samui

Sat 27/6

17:35-06:40

2 stops19h 05m

£916

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Fri 24/4

09:00-11:55

2 stops20h 55m

Ko Samui

Tue 28/4

15:20-06:40

2 stops21h 20m

£930

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Thu 23/4

14:35-15:45

2 stops19h 10m

Ko Samui

Fri 1/5

17:50-07:20

2 stops19h 30m

£972

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Wed 22/4

09:00-10:30

2 stops19h 30m

Ko Samui

Fri 1/5

17:25-06:40

2 stops19h 15m

£987

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Wed 12/8

10:40-15:25

2 stops22h 45m

Ko Samui

Sun 20/9

08:40-07:25

3 stops28h 45m

£1,063

Flights are sorted by cheapest return flights first.

Deals found on 22/3

Showing 1-10 of 21 resultsSorted by cheapest first

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.

LGW-USM

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

Prices

Delays

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 £258). Flying from London Gatwick Airport to Ko Samui in July is currently the most expensive (average of £987). 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.

How much does it cost for a return flight from London Gatwick Airport to Ko Samui?

Reviews of airlines servicing Ko Samui

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

8.2

Very Good

1,484 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.

Singapore Airlines

8.2

Very Good

1,484 reviews

Singapore Airlines

8.2

Very Good

1,484 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.

Qatar Airways

7.4

Good

3,732 reviews

Singapore Airlines

8.2

Very Good

1,484 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.

British Airways

6.7

Okay

7,821 reviews

Singapore Airlines

8.2

Very Good

1,484 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.

Related info for your journey

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 19h 30m. The distance from London Gatwick Airport to Ko Samui is about 6138 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from London Gatwick Airport to Ko Samui round-trip?
Currently priced at £755, 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 Singapore Airlines and British Airways - these airlines can fly you to your destination from £801 and £812, respectively. You may be able to fly from London Gatwick Airport to Ko Samui for 22% 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 £258). Flying from London Gatwick Airport to Ko Samui in July is currently the most expensive (average of £987). 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

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Top 3 airlines flying from Gatwick to Ko Samui

Airline	Cheapest	Average	Flexibility	On-time
Qatar Airways	Cheapest£755	Average£965	FlexibilityNo cancel fee	On-time68%	Search Qatar Airways flights
Singapore Airlines	Cheapest£801	Average£968	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights
British Airways	Cheapest£812	Average£984	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

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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?

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

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Cheap flights from London Gatwick Airport to Ko Samui from £329

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 16/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Gatwick to Ko Samui

Cheapest flights from Gatwick to Ko SamuiExplore 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 26 March 2026.

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 26 March 2026.

Best flights from Gatwick to Ko SamuiDiscover carefully curated flight deals from Gatwick to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 March 2026.

Discover carefully curated flight deals from Gatwick to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 March 2026.

Last-minute flights from Gatwick to Ko SamuiDiscover last-minute flight deals from Gatwick to Ko Samui. Data last updated 26 March 2026 and is based on user searches.

Discover last-minute flight deals from Gatwick to Ko Samui. Data last updated 26 March 2026 and is based on user searches.

One-way flights from Gatwick to Ko SamuiSearch for one-way flight options from Gatwick to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 26 March 2026.

Search for one-way flight options from Gatwick to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 26 March 2026.

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Best time to book a flight from Gatwick to Ko Samui

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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?

How much does it cost for a return flight from London Gatwick Airport to Ko Samui?

How often are flights from London to Ko Samui delayed?

What is the most punctual flight time for London to Ko Samui flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on London to Ko Samui flights?

What’s the top stopover airport for flights from London Gatwick Airport to Ko Samui?

What’s the cheapest stopover airport for flights from London Gatwick Airport to Ko Samui?

What’s the fastest stopover option from London Gatwick Airport to Ko Samui?

Which airport typically offers the quickest stopover for flights from London Gatwick Airport to Ko Samui?

Reviews of airlines servicing Ko Samui

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?

How long is the flight from London Gatwick Airport to Ko Samui?

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

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

How can I find direct flights from Gatwick to Ko Samui?

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

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

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Alternative routes for Gatwick to Ko Samui

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Other flights to Ko Samui

Explore flights to Ko Samui departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 26 March 2026.

Gatwick and Ko Samui flights

Browse other Gatwick and Ko Samui flight options. Last updated on 26 March 2026.

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Top 3 airlines flying from Gatwick to Ko Samui

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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 26 March 2026.

Best flights from Gatwick to Ko Samui
Discover carefully curated flight deals from Gatwick to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 March 2026.

Last-minute flights from Gatwick to Ko Samui
Discover last-minute flight deals from Gatwick to Ko Samui. Data last updated 26 March 2026 and is based on user searches.

One-way flights from Gatwick to Ko Samui
Search for one-way flight options from Gatwick to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 26 March 2026.