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Cheap flights from London to Koh Samui from £365

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 Koh Samui departing on 15/1. 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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Find the cheapest flights from London to Koh Samui

Cheap return flights

These are some of the best return flight deals from London to Koh Samui that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from London to Koh Samui.

Cheap last-minute flights

Planning a quick getaway from London to Koh Samui? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Koh Samui, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from London to Koh Samui

Find recent round-trip train or bus tickets from London to Koh Samui.

All round-trip flight deals to Koh Samui

The cheapest plane tickets to Koh Samui found on KAYAK recently.
17:40 - 20:45LHR-USM
20h 05m2 stops
19:00 - 15:55USM-LHR
27h 55m2 stops
Thu, 13 Mar - Thu, 27 Mar
21:55 - 07:20LHR-USM
27h 25m2 stops
19:30 - 12:45USM-LHR
23h 15m2 stops
£696Etihad Airways
Find Deal
Mon, 28 Apr - Mon, 26 May
17:40 - 10:40LHR-USM
34h 00m2 stops
08:00 - 17:45USM-LHR
39h 45m2 stops
Wed, 12 Mar - Sat, 5 Apr
20:35 - 08:00LHR-USM
28h 25m1 stop
08:55 - 15:35USM-LHR
37h 40m1 stop
£816Singapore Airlines
Find Deal
Tue, 21 Jan - Tue, 28 Jan
21:20 - 19:50LHR-USM
15h 30m1 stop
09:20 - 19:20USM-LHR
17h 00m1 stop
£817EVA Air
Find Deal
Fri, 7 Mar - Fri, 14 Mar
21:20 - 20:40LHR-USM
16h 20m1 stop
09:20 - 19:20USM-LHR
17h 00m1 stop
£819EVA Air
Find Deal
Sun, 16 Feb - Mon, 10 Mar
10:55 - 18:30LHR-USM
24h 35m1 stop
19:25 - 15:45USM-LHR
26h 20m1 stop
£832Singapore Airlines
Find Deal
Mon, 10 Mar - Fri, 11 Apr
21:25 - 21:35LHR-USM
18h 10m1 stop
07:00 - 19:10USM-LHR
18h 10m1 stop
£842Thai Airways
Find Deal
Wed, 28 May - Wed, 2 Jul
21:15 - 20:45LGW-USM
16h 30m1 stop
20:20 - 05:30USM-LGW
16h 10m1 stop
£999British Airways
Find Deal
Mon, 10 Mar - Sat, 29 Mar
21:15 - 19:50LGW-USM
15h 35m1 stop
19:10 - 05:30USM-LGW
17h 20m1 stop
£1,200British Airways
Find Deal
Mon, 20 Jan - Mon, 3 Feb
16:10 - 08:00LTN-USM
56h 50m3 stops
Wed, 15 Jan
08:00 - 18:25STN-USM
51h 25m3 stops
Wed, 15 Jan
19:55 - 10:25LTN-USM
55h 30m3 stops
Thu, 9 Jan
21:20 - 19:50LHR-USM
15h 30m1 stop
£536EVA Air
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Tue, 18 Mar
20:55 - 08:10LHR-USM
28h 15m2 stops
£553Etihad Airways
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Fri, 21 Feb
21:35 - 08:10LHR-USM
27h 35m1 stop
£591Thai Airways
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Fri, 21 Feb
11:50 - 20:55LHR-USM
26h 05m1 stop
£595Thai Airways
Find Deal
Wed, 15 Jan
21:20 - 19:50LHR-USM
15h 30m1 stop
£597EVA Air
Find Deal
Mon, 10 Feb
19:20 - 07:45LHR-USM
29h 25m2 stops
£756Etihad Airways
Find Deal
Wed, 8 Jan
21:15 - 10:35LGW-USM
30h 20m1 stop
£1,860British Airways
Find Deal
Thu, 9 Jan
18:55 - 18:15LHR-USM
16h 20m1 stop
08:15 - 05:40USM-LHR
28h 25m1 stop
£1,556
Find Deal
Tue, 24 Dec - Tue, 7 Jan
10:45 - 16:45LGW-USM
23h 00m3 stops
09:20 - 21:35USM-LGW
43h 15m3 stops
£1,566
Find Deal
Tue, 24 Dec - Tue, 7 Jan
07:10 - 12:00LTN-USM
21h 50m3 stops
09:20 - 21:15USM-LTN
42h 55m3 stops
£1,601
Find Deal
Tue, 24 Dec - Tue, 7 Jan
18:55 - 08:00LHR-USM
30h 05m1 stop
08:55 - 15:55USM-LHR
38h 00m2 stops
£1,622
Find Deal
Tue, 24 Dec - Tue, 7 Jan
20:25 - 08:00LHR-USM
52h 35m2 stops
08:40 - 19:35USM-LHR
17h 55m1 stop
£1,698
Find Deal
Sat, 21 Dec - Fri, 27 Dec
10:55 - 12:25LHR-USM
18h 30m1 stop
19:25 - 15:35USM-LHR
27h 10m1 stop
£1,706Singapore Airlines
Find Deal
Mon, 23 Dec - Mon, 13 Jan
20:35 - 18:25LHR-USM
38h 50m1 stop
19:25 - 15:35USM-LHR
27h 10m1 stop
£1,861Singapore Airlines
Find Deal
Sat, 21 Dec - Sat, 28 Dec
17:50 - 19:35LHR-USM
18h 45m1 stop
11:40 - 13:30USM-LHR
32h 50m2 stops
£2,171Cathay Pacific
Find Deal
Mon, 23 Dec - Mon, 13 Jan
13:35 - 18:15LGW-USM
21h 40m2 stops
17:40 - 06:40USM-LGW
20h 00m2 stops
£2,492Emirates
Find Deal
Tue, 24 Dec - Tue, 7 Jan
14:05 - 17:00STN-USM
19h 55m2 stops
19:10 - 12:05USM-STN
23h 55m2 stops
£9,889Emirates
Find Deal
Tue, 24 Dec - Tue, 7 Jan

SWISS flights from London to Koh Samui

Our best SWISS deals on London to Koh Samui flight tickets
SWISS
12 May
LHR12:10London Heathrow
27h 05m
2 stops
USM21:15Ko Samui
29 May
USM09:15Ko Samui
28h 40m
2 stops
LHR07:55London Heathrow
SWISS
20 May
LHR18:40London Heathrow
20h 35m
2 stops
USM21:15Ko Samui
3 Jun
USM10:05Ko Samui
27h 50m
2 stops
LHR07:55London Heathrow
SWISS
20 May
LHR18:40London Heathrow
20h 35m
2 stops
USM21:15Ko Samui
3 Jun
USM09:15Ko Samui
28h 40m
2 stops
LHR07:55London Heathrow

Emirates flights from London to Koh Samui

Our best Emirates deals on London to Koh Samui flight tickets
Emirates
19 Mar
STN20:15London Stansted
28h 55m
2 stops
USM08:10Ko Samui
6 Apr
USM08:45Ko Samui
34h 10m
2 stops
STN12:55London Stansted
Emirates
20 May
LGW10:05London Gatwick
20h 40m
2 stops
USM12:45Ko Samui
3 Jun
USM16:25Ko Samui
20h 55m
2 stops
LGW07:20London Gatwick
Emirates
31 Mar
LGW21:45London Gatwick
30h 25m
2 stops
USM10:10Ko Samui
8 Apr
USM08:45Ko Samui
28h 35m
2 stops
LGW07:20London Gatwick

See travel insights to Koh Samui from

How to get the cheapest flight ticket from London to Koh 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 typical price of a round-trip flight between London and Koh Samui?

What is the cheapest month to fly to Koh Samui?

The month of September is, on average, the cheapest month to fly to Koh Samui from London, with most prices found around £820. If you aren’t able to travel during the month of September, then book flights to Koh Samui from London during May instead. Flights to Koh Samui in May, while not as cheap as those in September, still average around £844.

What is the cheapest day to depart on your flight to Koh Samui?

Our data shows that Monday is the least expensive day to fly to Koh Samui. Tickets to fly out on this day can be as low as £872. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from London to Koh Samui for around £950.

What is the cheapest time of day to depart on your flight to Koh Samui?

Our data shows that the cheapest London to Koh Samui flights are usually those with departure times in the evening. Our users have found flights to Koh Samui in the evening for as low as £874. Try not to purchase tickets in the morning because they tend to be around £1,065. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

In general, most travellers find the cheapest time to book a flight to Koh Samui is about 4 days prior to their departure date, when tickets on average are £950. Don’t hesitate to check prices now though, because momondo users recently found tickets for as low as £604.

Can stopping save me money on London to Koh Samui flights?

You could potentially save up to 21% on your flight if you consider stops on a London to Koh Samui flight.

How have London to Koh Samui flight prices changed over time?

As of December 2024, prices for London to Koh Samui flights are approximately 9% cheaper when compared to flights at the same time last year.

When to book flights from London to Koh Samui

Are you open to changing your travel dates? Check out the ideal times to fly from London to Koh Samui according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London to Koh Samui (LON to USM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Koh Samui

Best price found

£365

Fastest flight time

14h 20m

Direct flights

None

Airports in Koh Samui

1 airport
The best one-way flight to Koh Samui from London in the past 72 hours is £365. The best return flight deal from London to Koh Samui found on momondo in the last 72 hours is £691.
The fastest flight from London to Koh Samui takes 14h 20m
There are no direct flights from London to Koh Samui. Popular non-direct routes for this connection are London Gatwick Airport - Ko Samui Airport, London Luton Airport - Ko Samui Airport and London Stansted Airport - Ko Samui Airport.
There is 1 airport near Koh Samui: Ko Samui (USM)

  • 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 20m.

  • 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?

  • 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 Koh Samui?


Best airlines flying from London to Koh Samui

Compare and see reviews for airlines that fly from London to Koh Samui with momondo
Airline
Rating
Free Cancellation
Price
Bangkok AirwaysPriceFrom £106Free CancellationRating
8.1
133 reviews
Search Bangkok Airways flights
Air FrancePriceFrom £632Free CancellationRating
7.4
1,505 reviews
Search Air France flights
KLMPriceFrom £647Free CancellationRating
7.8
1,349 reviews
Search KLM flights
Etihad AirwaysPriceFrom £661Free CancellationRating
7.3
1,206 reviews
Search Etihad Airways flights
Cathay PacificPriceFrom £679Free CancellationRating
7.6
839 reviews
Search Cathay Pacific flights
Singapore AirlinesPriceFrom £731Free CancellationRating
8.1
1,331 reviews
Search Singapore Airlines flights
EVA AirPriceFrom £754Free CancellationRating
8.4
1,273 reviews
Search EVA Air flights
British AirwaysPriceFrom £765Free CancellationRating
6.6
6,817 reviews
Search British Airways flights
Qatar AirwaysPriceFrom £824Free CancellationRating
7.5
3,792 reviews
Search Qatar Airways flights
EmiratesPriceFrom £838Free CancellationRating
8.1
3,410 reviews
Search Emirates flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Koh Samui?

Finding the right flight to Koh 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 Koh Samui quick and easy, saving you time and money.

Can I find flights from London to Koh Samui with flexible booking policies on momondo?

Yes. All flights to Koh 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 Koh Samui?

Once you have performed a search for London to Koh 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 Koh Samui right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Koh 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.


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