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

According to our current data, SWISS (£711), Lufthansa (£712), and Singapore Airlines (£738) offers the cheapest pricing from London to Ko Samui. Users have found that SWISS is 21% cheaper than the other options available to this destination.

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

The cheapest airline one-way is SWISS, with whom users have recently found tickets for as low as £417. However, be on the lookout for offers from Lufthansa and Emirates, as they are both options that can get you from London to Ko Samui for a low price.

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 City - 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 Air France, British Airways and EVA Air. 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, Thailand Cultural Center, and Patpong Night Market are currently the most popular points of interest in Bangkok at the moment. Pratunam, Thailand Cultural Center, and Patpong Night Market are located about 14.8 mi, 13.1 mi, and 14.9 mi, respectively from Bangkok Suvarnabhumi. Travellers in need of a car in Bangkok can hire one for about £21 per day.

What is the cheapest day to fly round-trip from London to Ko Samui?

Tuesday is generally a great day to depart. Flying on this day could help you save up to 70%.

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

To save on the cost of your flight from London to Ko Samui, book at least 57 days before your planned departure. Booking around this time can save you about 2% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £796 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £856.

What is the cheapest month to fly from London to Ko Samui?

September can be a great time to fly to Ko Samui from London with a flight ticket averaging about £906. Cheapflights users have found deals in the month of September for as cheap as £609. The most expensive prices can be found in the month of December.

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 11 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+ Flights from London to Ko Samui

Cheapflights Tip: The best prices from London to Ko Samui are usually found in September or May, booked 82 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Cheap flight deals from London to Ko Samui

Round-trip from	£710
One-way from	£322
Popular in	December
Cheapest in	September
Average price	£798

7/9-20/9
4 total stops
59h 00m total
London to Ko Samui

Search Deals

8/9
3 total stops
30h 15m total
London to Ko Samui

Search Deals

Highest demand for flights based on searches. 3% potential increase in price (£25 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£17 potential savings vs. average return price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

Find flight deals from London to Ko Samui

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 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

Sun 31/807:25LHR - USM

2 stops31h 45mLufthansa

Fri 12/916:25USM - LHR

2 stops29h 15mLufthansa

Deal found 11/6£712

Wed 2/707:25STN - USM

3 stops31h 00mMultiple Airlines

Mon 7/708:45USM - STN

3 stops40h 50mMultiple Airlines

Deal found 12/6£715

Wed 3/913:05LCY - USM

2 stops18h 40mSWISS

Wed 1/1016:25USM - LCY

2 stops22h 25mSWISS

Deal found 11/6£716

Tue 2/918:35LGW - USM

2 stops37h 10mSWISS

Fri 12/908:45USM - LGW

2 stops39h 05mSWISS

Deal found 12/6£717

Tue 2/919:15LHR - USM

3 stops36h 30mSWISS

Wed 8/1008:45USM - LHR

3 stops29h 30mSWISS

Deal found 12/6£723

Thu 30/1020:35LHR - USM

1 stop28h 25mSingapore Airlines

Fri 7/1119:25USM - LHR

1 stop30h 45mSingapore Airlines

Deal found 12/6£738

Mon 3/1117:10LHR - USM

2 stops20h 55mMultiple Airlines

Mon 1/1220:20USM - LHR

2 stops18h 45mMultiple Airlines

Deal found 12/6£743

Tue 2/917:00LCY - USM

2 stops22h 10mLufthansa

Tue 30/916:25USM - LCY

2 stops21h 45mLufthansa

Deal found 11/6£746

Fri 5/919:35LHR - USM

1 stop16h 40mBritish Airways

Wed 1/1013:30USM - LHR

1 stop21h 55mBritish Airways

Deal found 11/6£757

Mon 3/1109:50LCY - USM

2 stops28h 15mMultiple Airlines

Mon 1/1210:00USM - LCY

2 stops33h 50mMultiple Airlines

Deal found 12/6£759

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 13 June 2025.

Sun 7/906:00LHR - USM

2 stops33h 10mMultiple Airlines

Sat 20/912:05USM - LHR

2 stops25h 50mMultiple Airlines

Deal found 10/6£710

Tue 2/913:05LCY - USM

2 stops18h 40mSWISS

Fri 12/908:45USM - LCY

2 stops30h 00mSWISS

Deal found 10/6£711

Sun 31/807:25LHR - USM

2 stops31h 45mLufthansa

Fri 12/916:25USM - LHR

2 stops29h 15mLufthansa

Deal found 11/6£712

Thu 30/1020:35LHR - USM

1 stop28h 25mSingapore Airlines

Fri 7/1119:25USM - LHR

1 stop30h 45mSingapore Airlines

Deal found 12/6£738

Fri 5/919:35LHR - USM

1 stop16h 40mBritish Airways

Wed 1/1013:30USM - LHR

1 stop21h 55mBritish Airways

Deal found 11/6£757

Sat 30/806:00LHR - USM

2 stops29h 45mAustrian Airlines

Fri 12/919:15USM - LHR

2 stops19h 05mAustrian Airlines

Deal found 11/6£764

Fri 5/917:15LGW - USM

2 stops21h 35mTurkish Airlines

Mon 29/919:30USM - LGW

2 stops26h 45mTurkish Airlines

Deal found 11/6£774

Fri 5/1221:35LHR - USM

1 stop27h 10mThai Airways

Fri 19/1207:00USM - LHR

1 stop19h 35mThai Airways

Deal found 12/6£782

Wed 3/911:25LGW - USM

2 stops21h 20mGulf Air

Tue 30/915:50USM - LGW

2 stops21h 05mGulf Air

Deal found 11/6£787

Mon 17/1117:05LCY - USM

2 stops21h 00mKLM

Sun 30/1111:40USM - LCY

2 stops27h 30mKLM

Deal found 11/6£801

Mon 1/921:35LHR - USM

1 stop18h 00mEVA Air

Tue 16/908:00USM - LHR

1 stop17h 20mEVA Air

Deal found 11/6£811

Tue 11/1114:05STN - USM

2 stops18h 30mEmirates

Wed 19/1117:40USM - STN

2 stops25h 25mEmirates

Deal found 10/6£813

Last-minute flights from London to Ko Samui
Discover last-minute flight deals from London to Ko Samui. Data last updated 13 June 2025 and is based on user searches.

Fri 13/617:50LCY - USM

2 stops18h 25mKLM

Fri 20/610:55USM - LCY

2 stops27h 15mKLM

Deal found 12/6£967

Tue 17/621:35LHR - USM

1 stop18h 00mEVA Air

Tue 24/608:00USM - LHR

1 stop17h 20mEVA Air

Deal found 10/6£814

Tue 17/608:30LCY - USM

2 stops29h 15mMultiple Airlines

Mon 14/708:45USM - LCY

2 stops31h 20mMultiple Airlines

Deal found 10/6£817

Wed 18/610:00LHR - USM

2 stops21h 45mMultiple Airlines

Fri 4/715:50USM - LHR

2 stops21h 05mMultiple Airlines

Deal found 12/6£807

Wed 18/621:35LHR - USM

1 stop18h 00mEVA Air

Fri 4/708:00USM - LHR

1 stop17h 20mEVA Air

Deal found 12/6£882

Thu 19/622:05LHR - USM

2 stops32h 40mMultiple Airlines

Thu 24/708:20USM - LHR

2 stops28h 35mMultiple Airlines

Deal found 10/6£729

Tue 24/611:35LGW - USM

2 stops24h 10mMultiple Airlines

Sun 29/617:50USM - LGW

2 stops27h 20mMultiple Airlines

Deal found 11/6£747

Tue 24/614:55STN - USM

2 stops24h 15mEmirates

Sun 29/616:25USM - STN

2 stops26h 30mEmirates

Deal found 11/6£1,063

Wed 2/707:25STN - USM

3 stops25h 15mMultiple Airlines

Mon 7/708:45USM - STN

3 stops42h 25mMultiple Airlines

Deal found 10/6£714

Wed 2/709:30LHR - USM

2 stops21h 40mEtihad Airways

Mon 7/719:00USM - LHR

2 stops26h 15mEtihad Airways

Deal found 10/6£846

Wed 2/721:25LHR - USM

2 stops31h 05mQatar Airways

Mon 7/719:00USM - LHR

2 stops31h 25mQatar Airways

Deal found 11/6£880

Wed 2/719:20LCY - USM

2 stops19h 50mSWISS

Mon 7/709:15USM - LCY

2 stops29h 35mSWISS

Deal found 12/6£988

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 13 June 2025.

Mon 8/907:30STN - USM

3 stops30h 15mMultiple Airlines

Deal found 11/6£322

Fri 5/909:10LGW - USM

3 stops40h 10mMultiple Airlines

Deal found 11/6£344

Fri 26/908:40LHR - USM

3 stops40h 40mMultiple Airlines

Deal found 11/6£364

Mon 8/909:30LTN - USM

3 stops22h 25mMultiple Airlines

Deal found 11/6£385

Wed 3/909:25LCY - USM

2 stops22h 20mSWISS

Deal found 11/6£417

Fri 5/917:30LHR - USM

2 stops21h 40mLufthansa

Deal found 11/6£434

Tue 2/917:00LCY - USM

2 stops22h 10mLufthansa

Deal found 11/6£441

Tue 11/1114:05STN - USM

2 stops18h 30mEmirates

Deal found 11/6£480

Fri 27/609:30LHR - USM

2 stops26h 45mEtihad Airways

Deal found 10/6£535

Mon 23/621:35LHR - USM

1 stop16h 55mEVA Air

Deal found 10/6£550

Fri 15/809:20LCY - USM

3 stops23h 20mMultiple Airlines

Deal found 12/6£561

Fri 5/910:15LGW - USM

1 stop26h 15mSingapore Airlines

Deal found 11/6£567

Cheapflights Fare Finder

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

Fly from

Fly to

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

LHR - USM

LHRUSM

London Heathrow

Sun 31/8

07:25-21:10

2 stops31h 45m

Ko Samui

Fri 12/9

16:25-15:40

2 stops29h 15m

£712

LondonKo Samui

STN - USM

STNUSM

London Stansted

Wed 2/7

07:25-20:25

3 stops31h 00m

Ko Samui

Mon 7/7

08:45-19:35

3 stops40h 50m

£715

LondonKo Samui

LCY - USM

LCYUSM

London City

Wed 3/9

13:05-13:45

2 stops18h 40m

Ko Samui

Wed 1/10

16:25-08:50

2 stops22h 25m

£716

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

LHR - USM

LHRUSM

London Heathrow

Tue 2/9

19:15-13:45

3 stops36h 30m

Ko Samui

Wed 8/10

08:45-08:15

3 stops29h 30m

£723

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Thu 30/10

20:35-08:00

1 stop28h 25m

Ko Samui

Fri 7/11

19:25-19:10

1 stop30h 45m

£738

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Mon 3/11

17:10-21:05

2 stops20h 55m

Ko Samui

Mon 1/12

20:20-08:05

2 stops18h 45m

£743

LondonKo Samui

LCY - USM

LCYUSM

London City

Tue 2/9

17:00-21:10

2 stops22h 10m

Ko Samui

Tue 30/9

16:25-08:10

2 stops21h 45m

£746

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 44 results

...

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.

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

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 82 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.

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

Currently, August is the cheapest month in which you can book a flight from London to Ko Samui (average of £1,019). Flying from London 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 LON to USM?

It’s optimal to fly from London to Ko Samui in the afternoon. By choosing this option you can save up to 39% on the cost of your flight, compared to a flight at midday.

What is the cheapest day to fly from London to Ko Samui?

Travellers seeking maximum savings on their London to Ko Samui flight should consider departing on Wednesday at midday when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Ko Samui 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

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

Read reviews from past customers who have flown EVA Air, Emirates and Singapore Airlines from London to Ko Samui. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

EVA Air

8.4

Very Good

1,202 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

EVA Air

8.4

Very Good

1,202 reviews

EVA Air

8.4

Very Good

1,202 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Emirates

8.1

Very Good

3,265 reviews

EVA Air

8.4

Very Good

1,202 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Singapore Airlines

8.1

Very Good

1,304 reviews

EVA Air

8.4

Very Good

1,202 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

KLM

7.8

Good

1,358 reviews

EVA Air

8.4

Very Good

1,202 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Thai Airways

7.7

Good

335 reviews

EVA Air

8.4

Very Good

1,202 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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 11 airlines. Ko Samui is conveniently located just 2.1 mi from Ko Samui’s city center.
What are the cheapest airlines flying from London to Ko Samui round-trip?
According to our current data, SWISS (£711), Lufthansa (£712), and Singapore Airlines (£738) offers the cheapest pricing from London to Ko Samui. Users have found that SWISS is 21% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from London to Ko Samui one-way?
The cheapest airline one-way is SWISS, with whom users have recently found tickets for as low as £417. However, be on the lookout for offers from Lufthansa and Emirates, as they are both options that can get you from London to Ko Samui for a low price.
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 City - 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, Thailand Cultural Center, and Patpong Night Market are currently the most popular points of interest in Bangkok at the moment. Pratunam, Thailand Cultural Center, and Patpong Night Market are located about 14.8 mi, 13.1 mi, and 14.9 mi, respectively from Bangkok Suvarnabhumi. Travellers in need of a car in Bangkok can hire one for about £21 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, August is the cheapest month in which you can book a flight from London to Ko Samui (average of £1,019). Flying from London 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

Ko Tao

Ko Pha Ngan

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from London to Ko Samui

Airline	Cheapest	Average	Flexibility	On-time
Bangkok Airways	Cheapest£107	Average£143	FlexibilityNo cancel fee	On-time74%	Search Bangkok Airways flights
Air France	Cheapest£590	Average£727	FlexibilityNo cancel fee	On-time77%	Search Air France flights
KLM	Cheapest£604	Average£667	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Emirates	Cheapest£615	Average£817	FlexibilityNo cancel fee	On-time75%	Search Emirates flights
Etihad Airways	Cheapest£660	Average£723	FlexibilityNo cancel fee	On-time75%	Search Etihad Airways flights
Austrian Airlines	Cheapest£663	Average£819	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights
Singapore Airlines	Cheapest£668	Average£985	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights
EVA Air	Cheapest£714	Average£802	FlexibilityNo cancel fee	On-time74%	Search EVA Air flights
Thai Airways	Cheapest£765	Average£962	FlexibilityNo cancel fee	On-time77%	Search Thai Airways flights
Qatar Airways	Cheapest£768	Average£1,126	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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Cheap flights from London to Ko Samui from £322

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London to Ko Samui are usually found in September or May, booked 82 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Cheap flight deals from London to Ko Samui

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 13 June 2025.

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 13 June 2025.

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

Everything you need to know about your flight from London to Ko Samui

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

Use this chart to determine the optimal time to book a return flight from London to Ko Samui. Price data was last updated on 9 June 2025.

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

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

Find hourly flight availability from London 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.

What is the cheapest day to fly from London to Ko Samui?

Use this chart to determine the cheapest time to fly return from London to Ko Samui. Price data was last updated on 16 December 2024.

Rainfall in Ko Samui by month

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

Temperature in Ko Samui by month

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

Reviews of airlines servicing Ko Samui

Read reviews from past customers who have flown EVA Air, Emirates and Singapore Airlines from London to Ko Samui. 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

Find useful and relevant information for your journey from London 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?

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

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

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?

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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 13 June 2025.

Top 10 airlines flying from London to Ko Samui

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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 13 June 2025.