Cheap flights from Heathrow to Koh Samui

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How to find the cheapest flight from
Heathrow (LHR) to Koh Samui (USM)

All the information you need to plan the best LHR to USM flight in 2022: compare Heathrow to Koh Samui flight prices with the expected peak season, weather and rainfall in Koh Samui.
LHR - USM
Price
£778 - £1,387
USM
Temperature
27 - 29 °C
USM
Rainfall
58 - 490 mm

Popular in

December

High demand for flights, 34% potential price rise

Cheapest in

May

Best time to find cheap flights, 15% potential price drop

Average price

£623

Average for round-trip flights in May 2022

Round-trip from

£623

From London Heathrow to Ko Samui

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
When is the cheapest time to fly from London Heathrow Airport to Koh Samui (LHR - USM)?

When flying from London Heathrow Airport to Koh 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 is the cheapest month to fly from London Heathrow Airport to Koh Samui?

Our data shows that May tends to be the cheapest month to fly to Koh Samui from London Heathrow Airport. Users have commonly found prices around £722 for the month, but tickets can be as low as £555. Due to multiple factors, prepare for potentially higher prices in December.

Cheap flights from Heathrow to Koh Samui in May, June 2022

The best prices found for LHR to USM flights in May, June
27 Jun - 8 Jul
£713pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
23 May - 26 May
£720pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
27 Jun - 8 Jul
£726pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
     
3 STOPS
LHR
London Heathrow

London Heathrow to Koh Samui 2022 flight deals

Cheap flights to Koh Samui from Heathrow found for this year
11 Sep - 23 Dec
£491pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
26 Sep - 3 Oct
£494pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
11 Sep - 23 Dec
£496pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
     
3 STOPS
LHR
London Heathrow

Last-minute flights from Heathrow to Koh Samui

Late deals on return flights to Koh Samui from Heathrow, departing today and this week
1 Jun - 14 Jun
£864pp
LHR
London Heathrow
Etihad Airways
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Etihad Airways
   
2 STOPS
LHR
London Heathrow
1 Jun - 14 Jun
£865pp
LHR
London Heathrow
Etihad Airways
     
3 STOPS
USM
Ko Samui
USM
Ko Samui
Etihad Airways
     
3 STOPS
LHR
London Heathrow
30 May - 4 Jun
£940pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
   
2 STOPS
LHR
London Heathrow

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Heathrow</span> to <span class="emphasized">Koh Samui</span> flights.

Flight FAQs

From Heathrow to Koh Samui

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

Most people fly into Ko Samui (USM) if they book a flight to Koh Samui from London Heathrow. On average, Ko Samui has 0 inbound flights from London Heathrow per day from 12 airlines. Ko Samui is conveniently located just 2.1 mi from Koh Samui’s city center.

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

Some of the carriers operating flights from London Heathrow to Ko Samui that may be offering flexible cancellation policies are Thai Airways, KLM, and Qantas Airways. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from London Heathrow Airport to Koh Samui for under £500 on Cheapflights?

Yes, there are multiple flights from London Heathrow Airport to Koh Samui for under £500. The cheapest flight booked recently is on Multiple Airlines for just £491, but on average you can expect to pay £592.

Are there last-minute flights available from London Heathrow Airport to Koh Samui for under £900?

There are currently 14+ open flights from London Heathrow Airport to Koh Samui within the next 7 days for less than £900.

What are the cheapest airlines flying from London Heathrow Airport to Koh Samui round-trip?

Our cheapest airline available from London Heathrow Airport to Koh Samui is EVA Air. Our recent data shows that you can find tickets from as low as £684 on this airline. An additional option worth looking into is Etihad Airways, starting at £689. EVA Air is currently priced 6% below the average price you’ll pay for this route.

What are the most popular airlines that fly from London Heathrow Airport to Koh Samui?

The most popular airlines flying from London Heathrow Airport to Koh Samui are Air France, Finnair and British Airways. Something to consider prior to booking your flight.

What are the cheapest flights from London Heathrow Airport to Koh Samui?

On average you can expect to pay £1,414 for a flight from London Heathrow Airport to Koh Samui. The cheapest flight overall is £668 while the most popular route, (London Heathrow - Ko Samui) is currently priced at £510.

COVID Restrictions

View COVID Travel Restrictions for Koh Samui, Thailand

Do I need a COVID test to fly to Koh Samui from Heathrow?

Information is based on travel restrictions from London Heathrow to Ko Samui

Most visitors from London Heathrow need to provide a negative COVID-19 test result and/or quarantine to enter Ko Samui.

COVID-19 testing requirements
Visitors from London Heathrow are not required to present a negative COVID-19 PCR test or antigen result upon entering Ko Samui.

Quarantine requirements
Visitors from London Heathrow are not required to quarantine after entering Ko Samui.

Documents
Thailand Pass - The Thailand Pass is a web-based system for Thai and foreign travelers to fill in their travel and health information and upload the related documents before travelling. This system is operational and will replace the COE system on 1 November, 2021. However, the COE will continue to be used for certain groups of travelers.


Do I need a test to fly back to Heathrow from Koh Samui?

Returning to London Heathrow from Ko Samui

COVID-19 testing requirements
Visitors from Ko Samui are not required to present a negative COVID-19 PCR test or antigen result upon entering London Heathrow.

Quarantine requirements
Visitors from Ko Samui are not required to quarantine after entering London Heathrow.

Hide COVID Travel Restrictions for Koh Samui, Thailand

Alternative routes for Heathrow to Koh Samui

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

Destination information for Koh Samui

Things to know before you go - useful duration and weather info for your trip from Heathrow to Koh Samui.
Today's exchange rate
£1 = ฿42.87
Average temperature for May in Koh Samui
33.0 °C
Avg rainfall for May in Koh Samui
128.0 mm

Airports servicing London

Airports servicing Koh Samui

Top 10 airlines flying from London Heathrow to Ko Samui

The chart below displays the airlines Cheapflights users travelling from Heathrow 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
Bangkok Airways
£104 £140 No cancel fee 74%

We couldn't confirm the COVID-19 safety measures taken by Bangkok Airways. Please check directly on their website for additional information.

Search Bangkok Airways flights
Finnair
£462 £616 No cancel fee 76%
Search Finnair flights
KLM
£476 £560 No cancel fee 75%
Search KLM flights
Etihad Airways
£528 £668 No cancel fee 75%
Search Etihad Airways flights
Qantas Airways
£575 £805 No cancel fee 74%
Search Qantas Airways flights
Air France
£606 £855 No cancel fee 77%
Search Air France flights
Cathay Pacific
£624 £804 No cancel fee 72%
Search Cathay Pacific flights
Emirates
£637 £775 No cancel fee 75%
Search Emirates flights
Thai Airways
£646 £810 No cancel fee 77%
Search Thai Airways flights
EVA Air
£684 £871 No cancel fee 74%
Search EVA Air flights
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