Cheap flights from London to Ko Samui from £322
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 to Ko Samui departing on 8/9. 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 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 is in September. Flight prices, which tend to average around £772, 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, when ticket prices are also cheap, with an average price of £793.
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. The lowest ticket price found for a Wednesday departure recently was £486. 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 £829.
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 to Ko Samui during this time can be as low as £493. Flights at midday are often more expensive, with an average ticket price of £801.
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 when booking 9 weeks ahead of your departure date. In general, you can expect to find flights to Ko Samui for around £894 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 for as low as £754 on momondo.
What is the cheapest airline that flies from London to Ko Samui?
SWISS, Lufthansa, and Emirates are the most popular carriers operating from London 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 according to our data. EVA Air is the first choice among our users, with 55% of people opting to fly with this airline when travelling to Ko Samui. Keep in mind that there are 11 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 to Ko Samui
Cheap London to Ko Samui (LON to USM) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London to Ko Samui
How far is London to Ko Samui by plane?
London and Ko Samui are 6131.1 mi apart from one another. In terms of flight time, this usually takes a little over 14h 05m.
When did momondo last update prices for flights from London to Ko Samui Airport?
Prices for flights from London to Ko Samui Airport are updated daily.
How many operators does momondo search for flights from London to Ko Samui Airport?
As of June 2025, there are 11 operators available to choose from for flights from London to Ko Samui Airport.
How old do you have to be to fly from London to Ko Samui Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Ko Samui Airport.
What documentation or ID do you need to fly to Ko Samui Airport?
The travel and health documents you'll need for your trip to Ko Samui Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ko Samui Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from London to Ko Samui?
momondo data reveals that the most frequently booked airline on the route from London to Ko Samui is EVA Air, representing 45% of all bookings. The subsequent popular airlines are Thai Airways at 27%, British Airways at 10%, and Singapore Airlines at 8%.
Best airlines flying from London to Ko Samui
Compare and see reviews for airlines that fly from London to Ko Samui with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £107 | Free Cancellation | Rating 7.9 111 reviews | |||
| PriceFrom £590 | Free Cancellation | Rating 7.5 1,463 reviews | |||
| PriceFrom £604 | Free Cancellation | Rating 7.8 1,358 reviews | |||
| PriceFrom £615 | Free Cancellation | Rating 8.1 3,264 reviews | |||
| PriceFrom £660 | Free Cancellation | Rating 7.4 1,211 reviews | |||
| PriceFrom £663 | Free Cancellation | Rating 7.6 802 reviews | |||
| PriceFrom £668 | Free Cancellation | Rating 8.1 1,302 reviews | |||
| PriceFrom £714 | Free Cancellation | Rating 8.4 1,202 reviews | |||
| PriceFrom £765 | Free Cancellation | Rating 7.7 335 reviews | |||
| PriceFrom £768 | Free Cancellation | Rating 7.4 3,584 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?
Finding the right flight to Ko Samui from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Ko Samui quick and easy, saving you time and money.
Can I find flights from London to Ko Samui with flexible booking policies on momondo?
Yes. All flights to Ko Samui from London on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from London to Ko Samui?
Once you have performed a search for London to Ko Samui flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from London to Ko Samui right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Ko Samui from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.