Question 1

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

Accepted Answer

Currently priced at £756, Austrian Airlines will fly you from London Heathrow Airport to Ko Samui and back. In addition to Austrian Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from SWISS and EVA Air - these airlines can fly you to your destination from £759 and £764, respectively. Austrian Airlines is currently priced 17% below the average price you’ll pay for this route.

Question 2

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

Accepted Answer

The cheapest airline one-way is Qatar Airways, with whom users have recently found tickets for as low as £510. However, be on the lookout for offers from Etihad Airways and EVA Air, as they are both options that can get you from London Heathrow Airport to Ko Samui for a low price.

Question 3

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

Accepted Answer

The best time to book flights from London Heathrow Airport to Ko Samui is 58 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 4

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

Accepted Answer

Currently, August is the cheapest month in which you can book a flight from London Heathrow Airport to Ko Samui (average of £1,019). Flying from London Heathrow Airport to Ko Samui in December is currently the most expensive (average of £1,621). 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 5

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

Accepted Answer

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

Question 6

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 7

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 8

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

Accepted Answer

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

Question 9

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

Accepted Answer

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

Question 10

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

Accepted Answer

London Heathrow Airport to Ko Samui flights that have stopovers will least frequently stop in Singapore.

Question 11

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

Accepted Answer

Bangkok travellers tend to visit Pratunam, Thailand Cultural Center, and Siam Square more than anywhere else. Travelers on a layover in Bangkok can visit Pratunam, Thailand Cultural Center, and Siam Square, by traveling 14.8 mi, 13.1 mi, and 15.1 mi, respectively after landing at Bangkok Suvarnabhumi. Those looking to explore during their stopover in Bangkok can hire a car from Bangkok Suvarnabhumi for about £18 per day.

Question 12

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

Accepted Answer

It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

Question 13

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

Accepted Answer

Travelers have found it’s best to book a flight 12 days in advance to save up to 3% 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 12 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 Heathrow Airport to Ko Samui 1-2 weeks in advance for as low as £740, or £890 for flights within the next 24 hours.

Question 14

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

Accepted Answer

Our data shows that September tends to be the cheapest month to fly to Ko Samui from London Heathrow Airport. Users have commonly found prices around £939 for the month, but tickets can be as low as £639. Due to multiple factors, prepare for potentially higher prices in December.

Question 15

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

Accepted Answer

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Ko Samui at midday. If you’re flexible enough to do this you can expect to save up to 38% on your trip compared to booking a flight in the morning.

Question 16

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

Accepted Answer

Most people fly into Ko Samui (USM) if they book a flight to Ko Samui from London Heathrow. On average, Ko Samui has 0 inbound flights from London Heathrow per day from 9 airlines. Ko Samui is conveniently located just 2.1 mi from Ko Samui’s city center.

Question 17

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

Accepted Answer

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

Question 18

How can I find direct flights from Heathrow 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 Heathrow to Ko Samui.

Question 19

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

Accepted Answer

Yes. Cheapflights offers flight deals from Heathrow 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 20

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

Accepted Answer

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Ko Samui. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Question 21

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

Accepted Answer

Cheapflights simply makes it quick and affordable to book flights from Heathrow 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 22

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

Accepted Answer

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Ko Samui, users can toggle the no change fees filter when performing a flight search.

Question 23

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

Accepted Answer

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ko Samui from Heathrow today and book when prices fit your budget.

Round-trip from	£756
One-way from	£361
Popular in	December
Cheapest in	September
Average price	£1,038

Airline	Cheapest	Average	Flexibility	On-time
Air France	Cheapest£613	Average£757	FlexibilityNo cancel fee	On-time77%	Search Air France flights
KLM	Cheapest£628	Average£694	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Etihad Airways	Cheapest£640	Average£711	FlexibilityNo cancel fee	On-time75%	Search Etihad Airways flights
Austrian Airlines	Cheapest£713	Average£857	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights
EVA Air	Cheapest£735	Average£826	FlexibilityNo cancel fee	On-time74%	Search EVA Air flights
Singapore Airlines	Cheapest£738	Average£1,028	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights
British Airways	Cheapest£750	Average£1,142	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Thai Airways	Cheapest£803	Average£1,049	FlexibilityNo cancel fee	On-time77%	Search Thai Airways flights
Qatar Airways	Cheapest£824	Average£1,082	FlexibilityNo cancel fee	On-time68%	Search Qatar Airways flights

Cheap flights from London Heathrow Airport to Ko Samui from £361

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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London Heathrow to Ko Samui are usually found in September or May, booked 58 days in advance, depart on a Wednesday or Monday and return on a Friday

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Cheapest flights from Heathrow to Ko SamuiExplore the most affordable flight options available from Heathrow to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 April 2025.

Explore the most affordable flight options available from Heathrow to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 April 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Heathrow to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Heathrow with our price prediction graph.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Ko Samui. Price data was last updated on 4 April 2025.

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

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

Find hourly flight availability from Heathrow 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 12 April 2025.

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

Use this chart to determine the cheapest time to fly return from Heathrow to Ko Samui. Price data was last updated on 30 March 2025.

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

Get a feel of what it's like to fly with EVA Air, Singapore Airlines and Emirates from London to Ko Samui by reading reviews from past customers. You can also see how each airline compares 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 Heathrow 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 Heathrow?

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

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

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

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

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

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

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

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Alternative routes for Heathrow to Ko Samui

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Top 9 airlines flying from Heathrow to Ko Samui

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

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

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Cheapest flights from Heathrow to Ko Samui
Explore the most affordable flight options available from Heathrow to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 April 2025.