Q: 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 £833 and £1,005 in November. The cheapest return flight price found within the last 3 days was £705 on Multiple Airlines (10 Nov-30 Nov).

Question 1

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

Accepted Answer

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

Question 2

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

Accepted Answer

Airfare is below average for this route at the moment.London to Ko Samui flights typically cost between £833 and £1,005 in November.
The cheapest return flight price found within the last 3 days was £705 on Multiple Airlines (10 Nov-30 Nov).

Question 3

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

Accepted Answer

Flights via Vienna (VIE) offer the fastest connection on this route, with an average stopover time of 1h 05m.

Question 4

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

Accepted Answer

New Delhi (DEL) is the most affordable one-stop option, with an average return flight price of £410.

Question 5

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

Accepted Answer

Bangkok (BKK) – chosen by Cheapflights users on 81% of one-stop itineraries from London to Ko Samui on Cheapflights.

Question 6

How long is the flight from London to Ko Samui?

Accepted Answer

Departing from London to Ko Samui will take you 17h 50m. The distance between London and Ko Samui is about 6109 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

Question 7

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

Accepted Answer

According to our current data, Bangkok Airways (£112), Air France (£603), and SWISS (£605) 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.

Question 8

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

Accepted Answer

The best time to book flights from London to Ko Samui is 80 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.

Question 9

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

Accepted Answer

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 £1,669). 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.

Question 10

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

Accepted Answer

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.

Question 11

E

Accepted Answer

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.

Question 12

E

Accepted Answer

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).

Question 13

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

Accepted Answer

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.

Question 14

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

Accepted Answer

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.

Question 15

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

Accepted Answer

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

Question 16

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

Accepted Answer

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

Question 17

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

Accepted Answer

Siam Square, Pratunam, and Thailand Cultural Center are currently the most popular points of interest in Bangkok at the moment. Siam Square, Pratunam, and Thailand Cultural Center are located about 15.1 mi, 14.8 mi, and 13.1 mi, respectively from Bangkok Suvarnabhumi. Travellers in need of a car in Bangkok can hire one for about £20 per day.

Question 18

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

Accepted Answer

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

Question 19

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

Accepted Answer

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 5% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £827 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £875.

Question 20

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

Accepted Answer

September can be a great time to fly to Ko Samui from London with a flight ticket averaging about £922. Cheapflights users have found deals in the month of September for as cheap as £629. The most expensive prices can be found in the month of December.

Question 21

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

Accepted Answer

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.

Question 22

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

Accepted Answer

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.

Question 23

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

Accepted Answer

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

Question 24

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

Accepted Answer

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.

Question 25

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

Accepted Answer

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.

Question 26

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

Accepted Answer

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.

Question 27

Why should you use Cheapflights to find cheap flight tickets from London to Ko Samui?

Accepted Answer

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.

Question 28

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

Accepted Answer

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.

Question 29

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

Accepted Answer

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.

Round-trip from	£705
One-way from	£312
Popular in	December
Cheapest in	September
Average price	£1,066

Airline	Cheapest	Average	Flexibility	On-time
Bangkok Airways	Cheapest£112	Average£142	FlexibilityNo cancel fee	On-time74%	Search Bangkok Airways flights
Air France	Cheapest£603	Average£802	FlexibilityNo cancel fee	On-time77%	Search Air France flights
SWISS	Cheapest£605	Average£718	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Emirates	Cheapest£622	Average£827	FlexibilityNo cancel fee	On-time75%	Search Emirates flights
KLM	Cheapest£633	Average£764	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Lufthansa	Cheapest£635	Average£702	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Austrian Airlines	Cheapest£657	Average£725	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights
Etihad Airways	Cheapest£679	Average£736	FlexibilityNo cancel fee	On-time75%	Search Etihad Airways flights
EVA Air	Cheapest£729	Average£836	FlexibilityNo cancel fee	On-time74%	Search EVA Air flights
British Airways	Cheapest£740	Average£1,085	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Cheap flights from London to Ko Samui from £312

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 13/9. 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 80 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Cheap flight deals from London to Ko Samui

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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 22 August 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 22 August 2025.

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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 8 August 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 22 August 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.

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

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.

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.

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.

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.

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

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?

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?

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Top 10 airlines flying from London to Ko Samui

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Why should you use Cheapflights to find cheap flight tickets from London to Ko Samui?

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

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

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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 22 August 2025.