Cheap flights from London to Koh Samui from £399
This is the cheapest one-way flight price, found on 5/12. Prices may vary by date and flight preferences.
The best prices from London to Ko Samui are usually found in May or September, booked 79 days in advance, depart on a Monday or Sunday and return on a Wednesday
Flights from Koh Samui to London
How to find the cheapest flight from London (LON) to Koh Samui (USM)
Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Koh Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 6 December 2023.
Popular in | December |
|---|---|
Cheapest in | May |
Round-trip from | £666 |
One-way from | £441 |
What is the cheapest day to fly round-trip from London to Koh Samui?
Sunday is generally a great day to depart. Flying on this day could help you save up to 6%.
How far in advance should I book a flight from London to Koh Samui?
To save on the cost of your flight from London to Koh Samui, book at least 25 days before your planned departure. Booking around this time can save you about 25% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £981 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £1,090.
What is the cheapest month to fly from London to Koh Samui?
May can be a great time to fly to Koh Samui from London with a flight ticket averaging about £1,013. Cheapflights users have found deals in the month of May for as cheap as £730. The most expensive prices can be found in the month of December.
When is the cheapest time to fly from London to Koh Samui (LON - USM)?
It’s optimal to fly from London to Koh Samui in the evening. By choosing this option you can save up to 18% on the cost of your flight, compared to a flight in the morning.
Cheap Cathay Pacific flights from London to Koh Samui
Explore cheap flight options specifically provided by Cathay Pacific for the route between London and Koh Samui. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 815,420 searches. Data last updated 6 December 2023.
Check out some of the cheapest Cathay Pacific flights we've come across from London to Koh Samui. It's recommended that users confirm their flight details before booking.
Cheap EVA Air flights from London to Koh Samui
Explore cheap flight options specifically provided by EVA Air for the route between London and Koh Samui. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 815,420 searches. Data last updated 6 December 2023.
Have a look at some of the cheapest available EVA Air flights departing from London and landing in Koh Samui. Check back soon if you're not seeing flights that suit your needs.
Cheap London to Koh Samui flights in December & January 2023
Find cheap flight options from London to Koh Samui specifically for the months of December and January 2023. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 815,420 searches. Prices were last updated on 6 December 2023.
Listed are some of the best fares we've found on flights departing from London to Koh Samui in 2023. Check back regularly for other flight deals.
London to Koh Samui 2023 flight deals
Discover exclusive flight deals for travel between London and Koh Samui in 2023. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 815,420 searches. Data last updated 6 December 2023.
Listed are some of the best fares we've found on flights departing from London to Koh Samui in 2023. Check back regularly for other flight deals.
London to Koh Samui flights leaving soon
Find last-minute flight options from London to Koh Samui for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 815,420 searches. Data last updated 6 December 2023.
Have a look at some of the last-minute flights available departing from London to Koh Samui. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
One-way flights to Koh Samui from London
Search for one-way flight options from London to Koh Samui. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 815,420 searches. Data last updated 6 December 2023.
Users in need of a one-way flight from London to Koh Samui can choose from these deals. Users in need of a round-trip flight from London to Koh Samui instead should update the search form at the top of page.
Find flights from London to Koh Samui within your budget
Customise your flight search to find flights from London to Koh Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 815,420 searches. Data last updated 6 December 2023.
Fly from
Fly to
Budget
£717 - £1,039
Route
Depart
Return
Price
London GatwickKo Samui
LGW - USM
LGWUSM
London Gatwick
Thu 9/5
2 stops23h 20m
Ko Samui
Fri 24/5
2 stops35h 15m
London HeathrowKo Samui
LHR - USM
LHRUSM
London Heathrow
Thu 18/4
2 stops27h 25m
Ko Samui
Thu 9/5
2 stops23h 00m
London HeathrowKo Samui
LHR - USM
LHRUSM
London Heathrow
Tue 2/4
2 stops23h 40m
Ko Samui
Tue 9/4
2 stops29h 35m
London HeathrowKo Samui
LHR - USM
LHRUSM
London Heathrow
Sun 25/2
1 stop15h 25m
Ko Samui
Thu 30/5
1 stop16h 35m
London HeathrowKo Samui
LHR - USM
LHRUSM
London Heathrow
Fri 8/3
1 stop18h 45m
Ko Samui
Mon 18/3
1 stop24h 55m
London StanstedKo Samui
STN - USM
STNUSM
London Stansted
Sun 25/2
2 stops20h 05m
Ko Samui
Thu 30/5
2 stops23h 25m
London HeathrowKo Samui
LHR - USM
LHRUSM
London Heathrow
Fri 1/3
3 stops38h 40m
Ko Samui
Wed 13/3
2 stops28h 15m
London HeathrowKo Samui
LHR - USM
LHRUSM
London Heathrow
Thu 18/4
2 stops20h 15m
Ko Samui
Thu 9/5
1 stop24h 15m
London HeathrowKo Samui
LHR - USM
LHRUSM
London Heathrow
Sat 6/1
1 stop16h 40m
Ko Samui
Sat 20/1
1 stop18h 15m
Average price of flights to Koh Samui by month
Plan your trip from London to Koh Samui by taking into account the cheapest months to travel. The average price of a one-way flight from London to Koh Samui is currently 436.05 GBP while a return flight costs 864.26 GBP. Price data was last updated on 3 December 2023.
Currently, May is the cheapest month in which you can book a flight from London to Koh Samui (average of £1,060). Flying from London to Koh Samui in July is currently the most expensive (average of £1,398). 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.
January
£968
February
£911
March
£938
April
£890
May
£840
June
£915
July
£1,108
August
£907
September
£859
October
£917
November
£896
December
£977
Reviews of airlines servicing Koh Samui
Get insights into the airlines that provide service to Koh Samui. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Koh Samui. Reviews last updated 6 December 2023.
Read reviews from past customers who have flown Cathay Pacific, EVA Air and Etihad Airways from London to Koh Samui. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Crew
Overall
Entertainment
Comfort
Food
Reviews
Very expensive for seat selections, $50 for a seat from Hong Kong to Taipei, and $170 from Taipei to San Francisco.
Boarding
Crew
Overall
Entertainment
Comfort
Food
Reviews
Very expensive for seat selections, $50 for a seat from Hong Kong to Taipei, and $170 from Taipei to San Francisco.
Boarding
Crew
Overall
Entertainment
Comfort
Food
Reviews
Very expensive for seat selections, $50 for a seat from Hong Kong to Taipei, and $170 from Taipei to San Francisco.
Boarding
Crew
Overall
Entertainment
Comfort
Food
Reviews
Very expensive for seat selections, $50 for a seat from Hong Kong to Taipei, and $170 from Taipei to San Francisco.
Boarding
Crew
Overall
Entertainment
Comfort
Food
Reviews
Very expensive for seat selections, $50 for a seat from Hong Kong to Taipei, and $170 from Taipei to San Francisco.
Boarding
Crew
Overall
Entertainment
Comfort
Food
Reviews
Very expensive for seat selections, $50 for a seat from Hong Kong to Taipei, and $170 from Taipei to San Francisco.
Average temperature in Koh Samui by month
Plan your trip to Koh Samui by selecting the month that matches your preferred temperature. January sees the highest average temperature while April sees the lowest average temperature. Temperature data was last updated on 3 December 2023.
USM Temperature | 27 - 29 °C |
|---|
Average rainfall in Koh Samui by month
Keep in mind the precipitation totals in Koh Samui by selecting the month that matches your preferred temperature. Koh Samui sees an average of 163.25 precipitation per year with the most occurring in November. Precipitation data was last updated on 3 December 2023.
USM Rainfall | 58 - 490 mm |
|---|
Related info for your journey
Find useful and relevant information for your journey from London to Koh 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 Koh Samui from London?
Most people fly into Ko Samui (USM) if they book a flight to Koh Samui from London. On average, Ko Samui has 0 inbound flights from London per day from 12 airlines. Ko Samui is conveniently located just 2.1 mi from Koh Samui’s city center.
Can I find flights from London to Koh Samui for under £800 on Cheapflights?
Yes, there are multiple flights from London to Koh Samui for under £800. The cheapest flight booked recently is on Multiple Airlines for just £717, but on average you can expect to pay £784.
Are there last-minute flights available from London to Koh Samui for under £900?
There are currently 10+ open flights from London to Koh Samui within the next 7 days for less than £900.
What are the cheapest airlines flying from London to Koh Samui round-trip?
Our cheapest airline available from London to Koh Samui is Etihad Airways. Our recent data shows that you can find tickets from as low as £758 on this airline. Additional options worth looking into are Air France and EVA Air, starting at £792 and £809 round-trip. Etihad Airways is priced at 25% lower than the current average price of a flight leaving 3 months from now.
What are the most popular routes from London to Koh Samui?
The most popular route from London to Koh 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 Koh Samui?
The most popular airlines flying from London to Koh Samui are Air France, British Airways and EVA Air. Something to consider prior to booking your flight.
What does LHR to USM mean?
LHR and USM are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. LHR to USM refers to a flight route from London Heathrow Airport to Ko Samui Airport. Ready for more IATA code knowledge? These are related airports for your current travel destination: London Gatwick Airport (LGW), London City Airport (LCY), London Stansted Airport (STN), London Luton Airport (LTN), London Southend Airport (SEN).
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Fly from London to Koh Samui on these airlinesChoose from the following airlines for your flight from London to Koh Samui. Flights are based on user searches made on Cheapflights and were last updated on 6 December 2023.
Choose from the following airlines for your flight from London to Koh Samui. Flights are based on user searches made on Cheapflights and were last updated on 6 December 2023.
Top 10 airlines flying from London to Koh Samui
Discover the top 10 airlines that operate flights from London to Koh Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 815,420 searches. Data last updated 6 December 2023.
Search flights to Koh Samui by cabin class
Book a flight to one of these trending destinations
User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from London to Koh Samui?
When you search for this flight from London to Koh 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 Koh Samui?
Cheapflights simply makes it quick and affordable to book flights from London to Koh 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 Koh Samui with no change fees?
Need flexible booking options for your flight to Koh 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 Koh Samui become cheaper?
Not ready to book yet? You can track prices for flights from London to Koh Samui on Cheapflights with our Price Alert feature and get notified when better prices are available.