Cheap flights from London Heathrow Airport to Ko Samui from £361
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Ko Samui departing on 15/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from London Heathrow Airport to Ko Samui
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Ko Samui?
The cheapest month to fly to Ko Samui from London Heathrow Airport is in September. Flight prices, which tend to average around £766, are often lower during this time because this is during the off-season. If you don’t want to visit Ko Samui in September, then you should wait until May to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £791.
What is the cheapest day to depart on your flight to Ko Samui?
According to our data, Wednesday is the cheapest day to fly to Ko Samui from London Heathrow Airport. The lowest ticket price found for a Wednesday departure recently was £495. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Ko Samui on Sunday is £843.
What is the cheapest time of day to depart on your flight to Ko Samui?
Our most recent data shows that the best time of day to fly to Ko Samui is in the afternoon. Flights from London Heathrow Airport to Ko Samui during this time can be as low as £501. Flights at midday are often more expensive, with an average ticket price of £814.
How far in advance should I book a flight to Ko Samui?
You are more likely to see cheaper flights to Ko Samui from London Heathrow Airport when booking 9 weeks ahead of your departure date. In general, you can expect to find flights to Ko Samui for around £902 when searching 9 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ko Samui from London Heathrow Airport for as low as £781 on momondo.
What is the cheapest airline that flies from London Heathrow to Ko Samui?
Etihad Airways, Thai Airways, and EVA Air are the most popular carriers operating from London Heathrow to Ko Samui
Which airlines fly to Ko Samui?
EVA Air, Thai Airways and Singapore Airlines are the top three most popular airlines that fly to Ko Samui from London Heathrow Airport according to our data. EVA Air is the first choice among our users, with 58% of people opting to fly with this airline when travelling to Ko Samui. Keep in mind that there are 9 different airlines that fly to Ko Samui on a routine basis, so you have a few additional options to choose from.
When to book flights from London Heathrow Airport to Ko Samui
Cheap London Heathrow Airport to Ko Samui (LHR to USM) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Ko Samui
How far is London Heathrow to Ko Samui by plane?
The straight-line distance from London Heathrow to Ko Samui is 6145.4 mi. Flights usually cover this in 14h 55m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from London Heathrow Airport to Ko Samui Airport?
Prices for flights from London Heathrow Airport to Ko Samui Airport were last updated today.
How many operators does momondo search for flights from London Heathrow Airport to Ko Samui Airport?
As of May 2025, there are 9 operators available to choose from for flights from London Heathrow Airport to Ko Samui Airport.
How old do you have to be to fly from London Heathrow Airport to Ko Samui Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Ko Samui Airport.
What documentation or ID do you need to fly to Ko Samui Airport?
The required travel and health documents for your Ko Samui Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ko Samui Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from London Heathrow Airport to Ko Samui?
momondo data reveals that the most frequently booked airline on the route from London Heathrow Airport to Ko Samui is EVA Air, representing 54% of all bookings. The subsequent popular airlines are Thai Airways at 26%, Singapore Airlines at 7%, and British Airways at 7%.
Best airlines flying from London Heathrow Airport to Ko Samui
Compare and see reviews for airlines that fly from London Heathrow Airport to Ko Samui with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £600 | Free Cancellation | Rating 7.4 1,446 reviews | |||
| PriceFrom £614 | Free Cancellation | Rating 7.8 1,334 reviews | |||
| PriceFrom £641 | Free Cancellation | Rating 7.4 1,203 reviews | |||
| PriceFrom £675 | Free Cancellation | Rating 7.6 781 reviews | |||
| PriceFrom £721 | Free Cancellation | Rating 8.4 1,186 reviews | |||
| PriceFrom £732 | Free Cancellation | Rating 6.6 6,845 reviews | |||
| PriceFrom £733 | Free Cancellation | Rating 8.1 1,292 reviews | |||
| PriceFrom £786 | Free Cancellation | Rating 7.7 325 reviews | |||
| PriceFrom £810 | Free Cancellation | Rating 7.4 3,563 reviews |
Travelling to a place near Ko Samui?
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Why should I use momondo to find a flight deal from London to Ko Samui?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Ko Samui for you.
Can I find flights from London to Ko Samui with flexible booking policies on momondo?
momondo does allow users to show only those flights to Ko Samui from London which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from London to Ko Samui?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Ko Samui.
I’m not ready to book a flight from London to Ko Samui right now. Can momondo alert me if prices change?
If you are not ready to book a flight from London to Ko Samui now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ko Samui and let you know when they change.