Cheap flights from London to Koh Samui

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The best prices from London to Koh Samui are usually found in May or September, booked 13 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Return
Economy
Mon 30/11
–
Mon 7/12
From
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To
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To
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#removeLegButton($self.id("removeLeg$leg"))
Add another flight clear all
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Home Asia Thailand Koh Samui Cheap flights from London to Koh Samui

How to find the cheapest flight from
London (LON) to Koh Samui (USM)

LON - USM
Price
£590 - £1,015
USM
Temperature
29 - 33 °C
USM
Rainfall
50 - 423 mm

Popular in

December

High demand for flights, 33% potential price rise

Cheapest in

May

Best time to find cheap flights, 13% potential price drop

Average price

£606

Average for round-trip flights in November 2020

Round-trip from

£590

From London to Koh Samui

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly return from London to Koh Samui?

Flying to your destination on a Thursday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Koh Samui. Check prices with Cheapflights to find a great deal for your trip.

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

Travellers have found it’s best to book a flight 13 days in advance to save up to 0% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 13 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London to Koh Samui 1-2 weeks in advance for as low as £664, or £676 for flights within the next 24 hours.

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

Flights from London to Koh Samui lean towards being more expensive in December. Prices are generally better when you fly from London to Koh Samui in May, with the cheapest ticket starting at £522.

When is the cheapest time to fly from London to Koh Samui (LON - USM)?

One of the essential ways to save on airfare from London to Koh Samui is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at midday could potentially save you up to 12% on airfare.

Cheap flights from London to Koh Samui in November, December 2020

The best prices found for LON to USM flights in November, December
29 Nov - 28 Feb
£536pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
USM
Koh Samui
USM
Koh Samui
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
28 Nov - 19 Dec
£571pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
USM
Koh Samui
USM
Koh Samui
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
3 Dec - 26 Feb
£582pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
USM
Koh Samui
USM
Koh Samui
Multiple Airlines
   
2 STOPS
LHR
London Heathrow

London to Koh Samui 2021 flight deals

Cheap flights to Koh Samui from London found for next year
29 Nov - 28 Feb
£536pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
USM
Koh Samui
USM
Koh Samui
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
28 Nov - 19 Dec
£571pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
USM
Koh Samui
USM
Koh Samui
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
3 Dec - 26 Feb
£582pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
USM
Koh Samui
USM
Koh Samui
Multiple Airlines
   
2 STOPS
LHR
London Heathrow

Last-minute flights from London to Koh Samui

Late deals on return flights to Koh Samui from London, departing today and this week
29 Nov - 28 Feb
£536pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
USM
Koh Samui
USM
Koh Samui
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
28 Nov - 19 Dec
£571pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
USM
Koh Samui
USM
Koh Samui
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
3 Dec - 26 Feb
£582pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
USM
Koh Samui
USM
Koh Samui
Multiple Airlines
   
2 STOPS
LHR
London Heathrow

Related info for your journey

Useful info, stats and facts about London to Koh Samui flights.

Flight FAQs

From London to Koh Samui

Are flight prices decreasing from London to Koh Samui due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both London and Koh Samui for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from London to Koh Samui to control the spread of COVID-19?

New policies can now be found on Etihad Airways to help keep travellers safe while flying. Airline carriers are regularly disinfecting and sanitising their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially-distanced seating (for a limited time) will work towards keeping travellers safer while flying from London to Koh Samui. Policies will vary by airline.

Which airlines flying from London to Koh Samui have flexible cancellations due to COVID-19?

Some of our airline partners flying from London to Koh Samui have new flexible policies in place due to COVID-19. British Airways, Qatar Airways, and Emirates are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like British Airways with this kind of flexibility.

Can I find flights from London to Koh Samui for under £451 on Cheapflights?

Yes, there are multiple flights from London to Koh Samui for under £451. The cheapest flight booked recently is on Multiple Airlines for just £448, but on average you can expect to pay £545.

Are there direct flights from London to Koh Samui for under £451 on Cheapflights?

There are no direct flights from London to Koh Samui, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from London to Koh Samui for under £602?

There are currently 20+ open flights from London to Koh Samui within the next 7 days for less than £602.

Is London weather warmer or cooler than Koh Samui?

Expect the weather to be around 33 °C on average in May. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in Koh Samui is generally hotter than in London.

How long does is the flight from London to Koh Samui?

Departing from London to Koh Samui will take you 14h 40m.

What is the cheapest airline to fly from London to Koh Samui return?

Currently priced at £585, Qatar Airways will fly you from London to Koh Samui and back. In addition to Qatar Airways, many other airlines offer competitively priced options for your trip. This flight start at 13% lower than the current average price 3 months from now.

Related searches

Flights to Koh Samui from London
Flights to London Flights to Koh Samui Flights from London

Hire a Car

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Alternative routes for London to Koh Samui

Birmingham to Chiang Mai from £735 pp
Bristol to Krabi from £3,533 pp

Destination information for Koh Samui

Things to know before you go. Useful info for your trip from London to Koh Samui
Today's exchange rate
£1 = ฿40.21
Average temperature for November in Koh Samui
30.0 °C
Avg rainfall for November in Koh Samui
423.0 mm

Airports servicing London

Heathrow (LHR)
Gatwick (LGW)
City (LCY)
Stansted (STN)
Luton (LTN)
Southend (SEN)

Airports servicing Koh Samui

Koh Samui (USM)

Top 10 airlines from London to Koh Samui

The chart below displays the airlines Cheapflights users travelling from London to Koh Samui choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Airline Cheapest Average Flexibility On-time COVID-19 safety
Etihad Airways 		£687 £771 No change fee 75%
Search Etihad Airways flights
Singapore Airlines 		£667 £820 No change fee 81%
Search Singapore Airlines flights
Emirates 		£699 £835 No cancel fee 75%
Search Emirates flights
KLM 		£617 £840 No change fee 75%
Search KLM flights
EVA Air 		£722 £908 N/A 74%
Search EVA Air flights
British Airways 		£741 £982 No cancel fee 70%
Search British Airways flights
Qantas Airways 		£719 £1,005 No change fee 74%
Search Qantas Airways flights
Qatar Airways 		£700 £1,019 No cancel fee 68%
Search Qatar Airways flights
Air France 		£757 £1,068 No change fee 77%
Search Air France flights
Malaysia Airlines 		£803 £1,070 No cancel fee 67%
Search Malaysia Airlines flights

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