How long is the flight from London to Ko Samui?

Departing from London to Ko Samui will take you 18h 25m. The distance between London and Ko Samui is about 6123 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

According to our current data, Bangkok Airways (£119), Oman Air (£469), and Austrian Airlines (£599) offers the cheapest pricing from London to Ko Samui. Users have found that Bangkok Airways is 87% cheaper than the other options available to this destination.

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 routes from London to Ko Samui?

The most popular route from London to Ko Samui is London Heathrow - Ko Samui. You may also consider London Gatwick - Ko Samui or London Stansted - Ko Samui.

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

The most popular airlines flying from London to Ko Samui are Thai Airways, EVA Air and Singapore Airlines. Something to consider prior to booking your flight.

Where are the most common stopover locations when flying from London to Ko Samui?

The most popular stopover on flights from London to Ko Samui is Bangkok.

Where are the least popular stopover locations for London to Ko Samui flights?

London to Ko Samui flights have a stopover in Singapore the least frequently.

What are some popular things to do or see while on a stopover in Bangkok?

Pratunam, Siam Square, and Patpong Night Market are currently the most popular points of interest in Bangkok at the moment. Pratunam, Siam Square, and Patpong Night Market are located about 14.8 mi, 15.1 mi, and 14.9 mi, respectively from Bangkok Suvarnabhumi. Travellers in need of a car in Bangkok can hire one for about £17 per day.

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

When flying from London to Ko Samui, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to Ko Samui from London?

Most people fly into Ko Samui (USM) if they book a flight to Ko Samui from London. On average, Ko Samui has 0 inbound flights from London per day from 13 airlines. Ko Samui is conveniently located just 2.1 mi from Ko Samui’s city center.

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

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

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

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

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

Yes. Cheapflights offers flight deals from London 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.

£322+ Cheap Flights from London to Ko Samui

Cheap flight deals from London to Ko Samui

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from London to Ko Samui
Explore the most affordable flight options available from London to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 October 2026.

Tue 10/1108:45 -

2 stops18h 50m

Fri 11/1207:55 -

2 stops34h 10m

Deal found 30/9£675

Wed 9/1217:25 -

3 stops20h 55m

Wed 23/1219:00 -

1 stop25h 05m

Deal found 28/9£675

Tue 10/1108:45 -

2 stops20h 05m

Thu 10/1207:55 -

2 stops34h 10m

Deal found 29/9£676

Tue 24/1107:10 -

3 stops26h 05m

Fri 4/1218:15 -

1 stop25h 50m

Deal found 30/9£678

Tue 3/1108:45 -

2 stops39h 25m

Fri 20/1114:15 -

2 stops27h 50m

Deal found 28/9£678

Tue 24/1108:40 -

2 stops23h 40m

Fri 4/1210:00 -

2 stops38h 50m

Deal found 30/9£681

Wed 14/1010:00 -

2 stops28h 25m

Sun 18/1018:25 -

3 stops30h 10m

Deal found 30/9£684

Tue 10/1110:30 -

2 stops22h 45m

Thu 10/1214:05 -

2 stops23h 25m

Deal found 28/9£684

Fri 13/1106:30 -

3 stops25h 40m

Fri 20/1119:00 -

2 stops27h 35m

Deal found 29/9£688

Tue 10/1108:45 -

2 stops39h 25m

Mon 30/1114:25 -

2 stops27h 40m

Deal found 30/9£688

Tue 24/1108:45 -

2 stops39h 25m

Thu 17/1217:05 -

2 stops25h 00m

Deal found 2/10£689

Mon 7/1209:50 -

2 stops27h 35m

Sun 27/1209:20 -

2 stops28h 10m

Deal found 29/9£690

Best flights from London to Ko Samui
Discover carefully curated flight deals from London to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 October 2026.

Tue 3/1109:15 -

2 stops18h 25m

Wed 18/1110:20 -

2 stops29h 20m

Deal found 28/9£722

Wed 9/1213:20 -

3 stops25h 00m

Wed 23/1215:05 -

3 stops27h 10m

Deal found 28/9£728

Sun 11/1008:25 -

2 stops21h 30m

Tue 20/1015:50 -

2 stops33h 20m

Deal found 29/9£770

Tue 3/1108:05 -

2 stops19h 35m

Tue 17/1120:30 -

2 stops22h 45m

Deal found 28/9£843

Tue 3/1109:40 -

2 stops18h 00m

Wed 18/1120:30 -

2 stops22h 10m

Deal found 28/9£874

Fri 9/1010:40 -

2 stops22h 30m

Sat 17/1013:50 -

2 stops23h 05m

Deal found 29/9£876

Tue 3/1106:30 -

2 stops18h 05m

Mon 23/1120:20 -

2 stops19h 50m

Deal found 28/9£929

Sat 21/1121:00 -

1 stop17h 05m

Thu 3/1216:25 -

1 stop20h 00m

Deal found 28/9£951

Sun 11/1021:35 -

1 stop18h 00m

Mon 19/1009:15 -

1 stop16h 05m

Deal found 29/9£962

Sat 21/1113:05 -

1 stop35h 55m

Thu 3/1218:05 -

1 stop22h 00m

Deal found 1/10£991

Wed 9/1209:20 -

2 stops20h 45m

Mon 21/1209:20 -

2 stops17h 15m

Deal found 2/10£1,146

Tue 13/1014:45 -

3 stops23h 40m

Wed 21/1006:00 -

3 stops22h 10m

Deal found 30/9£733

Tue 3/1109:15 -

2 stops19h 40m

Tue 17/1110:20 -

2 stops29h 20m

Deal found 28/9£762

Sun 13/1217:00 -

3 stops32h 00m

Mon 21/1218:15 -

3 stops24h 00m

Deal found 1/10£763

Tue 3/1109:40 -

2 stops18h 00m

Thu 19/1117:40 -

2 stops20h 00m

Deal found 28/9£874

Wed 4/1108:40 -

2 stops19h 00m

Thu 19/1117:40 -

2 stops19h 15m

Deal found 28/9£878

Mon 16/1120:05 -

2 stops32h 45m

Wed 18/1114:15 -

2 stops35h 10m

Deal found 28/9£961

Sat 14/1117:15 -

3 stops34h 25m

Sat 21/1112:30 -

3 stops28h 55m

Deal found 30/9£800

Mon 16/1109:40 -

2 stops21h 10m

Thu 19/1117:05 -

2 stops25h 35m

Deal found 2/10£886

Tue 10/1109:15 -

2 stops19h 40m

Mon 30/1110:20 -

2 stops29h 20m

Deal found 30/9£925

Sat 10/1021:35 -

1 stop16h 55m

Fri 16/1008:45 -

1 stop16h 35m

Deal found 29/9£1,063

Thu 12/1109:40 -

2 stops24h 50m

Thu 19/1117:40 -

2 stops25h 00m

Deal found 28/9£889

Sun 1/1116:25 -

3 stops20h 25m

Sun 15/1118:15 -

3 stops25h 10m

Deal found 28/9£811

Sun 29/1113:45 -

2 stops19h 30m

Wed 23/1207:55 -

2 stops18h 40m

Deal found 29/9£1,149

Sat 7/1110:25 -

2 stops18h 30m

Thu 19/1117:05 -

3 stops23h 30m

Deal found 1/10£824

Thu 12/1109:10 -

2 stops25h 20m

Thu 19/1117:40 -

2 stops27h 10m

Deal found 28/9£914

Tue 3/1109:15 -

2 stops19h 40m

Fri 20/1110:20 -

2 stops32h 20m

Deal found 1/10£1,037

Mon 2/1109:40 -

2 stops21h 10m

Mon 23/1121:10 -

2 stops21h 30m

Deal found 3/10£916

Sun 11/1006:00 -

3 stops22h 30m

Tue 27/1018:15 -

3 stops23h 20m

Deal found 1/10£886

Mon 7/1213:30 -

2 stops18h 50m

Sun 27/1210:00 -

2 stops29h 40m

Deal found 29/9£1,237

Find flight deals from London to Ko Samui

Round-trip from	£675
One-way from	£322
Popular in	December
Cheapest in	November
Average price	£896

10/11-11/12
4 total stops
53h 00m total
London to Ko Samui

Search Deals

7/11-31/12
3 total stops
27h 05m total
London to Ko Samui

Search Deals

Highest demand for flights based on searches. 10% potential increase in price (£87 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£36 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonKo Samui

LTN London Luton - USM Ko Samui

LTNUSM

London Luton

Mon 9/11

13:20-20:25

3 stops24h 05m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£338

LondonKo Samui

LTN London Luton - USM Ko Samui

LTNUSM

London Luton

Tue 13/10

19:50-10:30

3 stops56h 40m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£347

LondonKo Samui

LGW London Gatwick - USM Ko Samui

LGWUSM

London Gatwick

Mon 2/11

06:10-07:10

3 stops42h 00m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£353

LondonKo Samui

LTN London Luton - USM Ko Samui

LTNUSM

London Luton

Mon 2/11

19:05-18:25

3 stops40h 20m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£353

LondonKo Samui

LHR London Heathrow - USM Ko Samui

LHRUSM

London Heathrow

Tue 13/10

19:00-07:10

3 stops54h 10m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£358

LondonKo Samui

LGW London Gatwick - USM Ko Samui

LGWUSM

London Gatwick

Thu 3/12

14:40-20:25

3 stops46h 45m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£375

LondonKo Samui

LTN London Luton - USM Ko Samui

LTNUSM

London Luton

Fri 11/12

15:05-20:30

3 stops46h 25m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£382

LondonKo Samui

LGW London Gatwick - USM Ko Samui

LGWUSM

London Gatwick

Wed 4/11

08:45-18:25

2 stops26h 40m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£384

LondonKo Samui

LHR London Heathrow - USM Ko Samui

LHRUSM

London Heathrow

Mon 2/11

21:10-18:05

2 stops37h 55m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£393

LondonKo Samui

LGW London Gatwick - USM Ko Samui

LGWUSM

London Gatwick

Tue 13/10

09:45-20:25

2 stops28h 40m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£394

Flights are sorted by cheapest return flights first.

Deals found on 28/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from London to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from London with our price prediction graph.

LON-USM

LTN-USM

LCY-USM

LHR-USM

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 to Ko Samui

LON-USM

LTN-USM

LCY-USM

LHR-USM

LGW-USM

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

Currently, November is the cheapest month in which you can book a flight from London to Ko Samui (average of £796). Flying from London to Ko Samui in December is currently the most expensive (average of £1,370). 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 to Ko Samui?

Airfare is below average for this route at the moment.

London to Ko Samui flights typically cost between £802 and £975 in November.
The cheapest return price found within the last 5 days was £675 on Multiple Airlines (10 Nov–11 Dec).

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

Bangkok (BKK) – chosen by Cheapflights users on 74% of one-stop itineraries from London to Ko Samui on Cheapflights.

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

Shanghai (PVG) is the most affordable one-stop option, with an average return flight price of £405.

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

Flights via Vienna (VIE) have the shortest average one-way travel time for one-stop routes: 13h 20m.

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

Flights via Vienna (VIE) offer the fastest connection on this route, with an average stopover time of 0h 50m.

How often are flights from London to Ko Samui delayed?

About 10% of weekly flights between London and Ko Samui have experienced delays in the past year, with the average delay time being 158 minutes.

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

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

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

Wednesday 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, Virgin Atlantic have had the lowest number of delays on this route, with just 6% of flights being delayed.

How far ahead should I book a flight from London to Ko Samui?

The best time to book flights from London to Ko Samui is 74 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Ko Samui

Check out reviews from past customers who have flown with EVA Air,Singapore Airlines, andThai Airways from London to Ko Samui to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

EVA Air

8.5

Very Good

1,539 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Padma,Aug 2026

TPE - SFO

Great but could not allow me to do online booking

EVA Air

8.5

Very Good

1,539 reviews

EVA Air

8.5

Very Good

1,539 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Padma,Aug 2026

TPE - SFO

Great but could not allow me to do online booking

Singapore Airlines

8.2

Very Good

1,619 reviews

EVA Air

8.5

Very Good

1,539 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Padma,Aug 2026

TPE - SFO

Great but could not allow me to do online booking

Thai Airways

7.9

Good

425 reviews

EVA Air

8.5

Very Good

1,539 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Padma,Aug 2026

TPE - SFO

Great but could not allow me to do online booking

Qatar Airways

7.3

Good

3,726 reviews

EVA Air

8.5

Very Good

1,539 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Padma,Aug 2026

TPE - SFO

Great but could not allow me to do online booking

British Airways

6.7

Okay

8,243 reviews

EVA Air

8.5

Very Good

1,539 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Padma,Aug 2026

TPE - SFO

Great but could not allow me to do online booking

Related info for your journey

What airport do you fly into for flights to Ko Samui from London?
Most people fly into Ko Samui (USM) if they book a flight to Ko Samui from London. On average, Ko Samui has 0 inbound flights from London per day from 13 airlines. Ko Samui is conveniently located just 2.1 mi from Ko Samui’s city center.
How long is the flight from London to Ko Samui?
Departing from London to Ko Samui will take you 18h 25m. The distance between London and Ko Samui is about 6123 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from London to Ko Samui round-trip?
According to our current data, Bangkok Airways (£119), Oman Air (£469), and Austrian Airlines (£599) offers the cheapest pricing from London to Ko Samui. Users have found that Bangkok Airways is 87% cheaper than the other options available to this destination.
What are the most popular routes from London to Ko Samui?
The most popular route from London to Ko Samui is London Heathrow - Ko Samui. You may also consider London Gatwick - Ko Samui or London Stansted - Ko Samui.
Where are the most common stopover locations when flying from London to Ko Samui?
The most popular stopover on flights from London to Ko Samui is Bangkok.
What are some popular things to do or see while on a stopover in Bangkok?
Pratunam, Siam Square, and Patpong Night Market are currently the most popular points of interest in Bangkok at the moment. Pratunam, Siam Square, and Patpong Night Market are located about 14.8 mi, 15.1 mi, and 14.9 mi, respectively from Bangkok Suvarnabhumi. Travellers in need of a car in Bangkok can hire one for about £17 per day.
Where are the least popular stopover locations for London to Ko Samui flights?
London to Ko Samui flights have a stopover in Singapore the least frequently.
Can I find deals for flights from London to Ko Samui that include hotel bookings?
Yes. In addition to deals on London to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Ko Samui?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Ko Samui.
Can I find deals for business class flights from London to Ko Samui?
Yes. Cheapflights offers flight deals from London 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 to Ko Samui?
Currently, November is the cheapest month in which you can book a flight from London to Ko Samui (average of £796). Flying from London to Ko Samui in December is currently the most expensive (average of £1,370). 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

Ko Pha Ngan

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Fly from London to Ko Samui on these airlines

Thai Airways flights from London to Ko Samui

EVA Air flights from London to Ko Samui

Etihad Airways flights from London to Ko Samui

Top 10 airlines flying from London to Ko Samui

Airline	Cheapest	Average	Flexibility	On-time
Bangkok Airways	Cheapest£119	Average£170	FlexibilityNo cancel fee	On-time74%	Search Bangkok Airways flights
Oman Air	Cheapest£469	Average£964	FlexibilityNo cancel fee	On-time76%	Search Oman Air flights
Austrian Airlines	Cheapest£599	Average£695	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights
Lufthansa	Cheapest£611	Average£792	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Etihad Airways	Cheapest£621	Average£801	FlexibilityNo cancel fee	On-time75%	Search Etihad Airways flights
SWISS	Cheapest£623	Average£717	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
British Airways	Cheapest£728	Average£1,052	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
EVA Air	Cheapest£746	Average£879	FlexibilityNo cancel fee	On-time74%	Search EVA Air flights
Singapore Airlines	Cheapest£766	Average£971	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights
Qatar Airways	Cheapest£787	Average£881	FlexibilityNo cancel fee	On-time68%	Search Qatar Airways flights

Fly with Cheapflights

How does Cheapflights help users find flights from London to Ko Samui?

When you search for this flight from London 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 London to Ko Samui?

Cheapflights simply makes it quick and affordable to book flights from London to Ko Samui by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from London to Ko Samui with no change fees?

Need flexible booking options for your flight to Ko Samui from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Not ready to book yet? You can track prices for flights from London to Ko Samui on Cheapflights with our Price Alert feature and get notified when better prices are available.

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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.

Cheap flights from London to Ko Samui from £322

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to Ko Samui

Cheapest flights from London to Ko SamuiExplore the most affordable flight options available from London to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 October 2026.

Explore the most affordable flight options available from London to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 October 2026.

Best flights from London to Ko SamuiDiscover carefully curated flight deals from London to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 October 2026.

Discover carefully curated flight deals from London to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 October 2026.

Last-minute flights from London to Ko SamuiDiscover last-minute flight deals from London to Ko Samui. Data last updated 3 October 2026 and is based on user searches.

Discover last-minute flight deals from London to Ko Samui. Data last updated 3 October 2026 and is based on user searches.

One-way flights from London to Ko SamuiSearch for one-way flight options from London to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 3 October 2026.

Search for one-way flight options from London to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 3 October 2026.

Find flight deals from London to Ko Samui

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Best time to book a flight from London to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from London with our price prediction graph.

Cheapflights Insights

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

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

Airfare is below average for this route at the moment.

London to Ko Samui flights typically cost between £802 and £975 in November.The cheapest return price found within the last 5 days was £675 on Multiple Airlines (10 Nov–11 Dec).

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

Share of one-stop return flights from London to Ko Samui chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Bangkok (BKK) – chosen by Cheapflights users on 74% of one-stop itineraries from London to Ko Samui on Cheapflights.

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

Average return fare for one-stop flights from London to Ko Samui, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Shanghai (PVG) is the most affordable one-stop option, with an average return flight price of £405.

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

Shortest average travel time for one-stop one-way flights from London to Ko Samui, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Vienna (VIE) have the shortest average one-way travel time for one-stop routes: 13h 20m.

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

Average stopover duration for one-stop one-way flights from London to Ko Samui, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Vienna (VIE) offer the fastest connection on this route, with an average stopover time of 0h 50m.

How often are flights from London to Ko Samui delayed?

About 10% of weekly flights between London and Ko Samui have experienced delays in the past year, with the average delay time being 158 minutes.

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

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

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

Wednesday 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, Virgin Atlantic have had the lowest number of delays on this route, with just 6% of flights being delayed.

How far ahead should I book a flight from London to Ko Samui?

The best time to book flights from London to Ko Samui is 74 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Ko Samui

Check out reviews from past customers who have flown with EVA Air,Singapore Airlines, andThai Airways from London to Ko Samui to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly into for flights to Ko Samui from London?

How long is the flight from London to Ko Samui?

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

What are the most popular routes from London to Ko Samui?

Where are the most common stopover locations when flying from London to Ko Samui?

What are some popular things to do or see while on a stopover in Bangkok?

Where are the least popular stopover locations for London to Ko Samui flights?

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

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

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

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

Travelling to a place near Ko Samui?

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Fly from London to Ko Samui on these airlines

Choose from the following airlines for your flight from London to Ko Samui. Flights are based on user searches made on Cheapflights and were last updated on 3 October 2026.

Alternative routes for London to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Ko Samui by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Thailand

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Search flights from London to Ko Samui by cabin class

Find flights from London to Ko Samui, based on your preferred cabin class, be it economy, premium economy, business, or first class.

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 3 October 2026.

London and Ko Samui flights

Browse other London and Ko Samui flight options. Last updated on 3 October 2026.

Other flights from London

Cheapest flights from London to Ko Samui
Explore the most affordable flight options available from London to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 October 2026.

Best flights from London to Ko Samui
Discover carefully curated flight deals from London to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 October 2026.

Last-minute flights from London to Ko Samui
Discover last-minute flight deals from London to Ko Samui. Data last updated 3 October 2026 and is based on user searches.

One-way flights from London to Ko Samui
Search for one-way flight options from London to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 3 October 2026.

London to Ko Samui flights typically cost between £802 and £975 in November.
The cheapest return price found within the last 5 days was £675 on Multiple Airlines (10 Nov–11 Dec).