Flights to Ko Samui

£272 Cheap flights to Ko Samui

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Ko Samui departing on 24/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from the United Kingdom to Ko Samui

Cheap return flights

Enter your travel dates to find the best prices.
SWISS Logo
18:50 - 13:45
BHX
-
USM
36h 55m
2 stops
SWISS Logo
09:15 - 08:05
USM
-
BHX
28h 50m
2 stops
£639SWISS
Mon, 25 May - Thu, 25 Jun
Multiple Airlines Logo
17:55 - 16:35
BHX
-
USM
16h 40m
2 stops
Multiple Airlines Logo
16:25 - 08:05
USM
-
BHX
21h 40m
2 stops
£644Multiple Airlines
Tue, 26 May - Tue, 23 Jun
SWISS Logo
18:50 - 21:10
BHX
-
USM
20h 20m
2 stops
SWISS Logo
10:05 - 08:05
USM
-
BHX
28h 00m
2 stops
£648SWISS
Thu, 23 Apr - Mon, 22 Jun
Lufthansa Logo
12:00 - 21:10
NCL
-
USM
27h 10m
2 stops
Lufthansa Logo
16:25 - 10:45
USM
-
NCL
24h 20m
2 stops
£728Lufthansa
Mon, 4 May - Mon, 25 May
Singapore Airlines Logo
20:35 - 18:50
LHR
-
USM
16h 15m
1 stop
Singapore Airlines Logo
08:40 - 19:30
USM
-
LHR
16h 50m
1 stop
£731Singapore Airlines
Mon, 11 May - Sat, 16 May
Singapore Airlines Logo
10:15 - 17:20
LGW
-
USM
25h 05m
1 stop
Singapore Airlines Logo
19:45 - 06:55
USM
-
LGW
17h 10m
1 stop
£741Singapore Airlines
Mon, 11 May - Sat, 16 May
KLM Logo
13:10 - 16:35
EDI
-
USM
21h 25m
2 stops
KLM Logo
08:45 - 08:30
USM
-
EDI
29h 45m
2 stops
£842KLM
Wed, 27 May - Sun, 31 May
KLM Logo
13:10 - 12:45
EDI
-
USM
17h 35m
2 stops
KLM Logo
09:15 - 08:30
USM
-
EDI
29h 15m
2 stops
£842KLM
Wed, 27 May - Sun, 31 May
Qatar Airways Logo
21:30 - 18:15
MAN
-
USM
37h 45m
2 stops
Qatar Airways Logo
19:35 - 12:20
USM
-
MAN
23h 45m
2 stops
£898Qatar Airways
Mon, 23 Feb - Mon, 2 Mar
Qatar Airways Logo
21:45 - 10:30
MAN
-
USM
30h 45m
2 stops
Qatar Airways Logo
13:30 - 06:25
USM
-
MAN
22h 55m
2 stops
£901Qatar Airways
Sat, 4 Apr - Fri, 24 Apr

momondo Fare Finder

 
Locate flights to Ko Samui that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 279,928 searches and data was last updated on 28 January 2026.
Use the filters below to find and compare flights to Ko Samui that are best for you.

Fly from

Route

Depart

Return

Price

BirminghamKo Samui

BHX - USM

BHXUSM

Birmingham

Mon 25/5

18:50-13:45

2 stops36h 55m

Ko Samui

Thu 25/6

09:15-08:05

2 stops28h 50m

£639

BirminghamKo Samui

BHX - USM

BHXUSM

Birmingham

Tue 26/5

17:55-16:35

2 stops16h 40m

Ko Samui

Tue 23/6

16:25-08:05

2 stops21h 40m

£644

BirminghamKo Samui

BHX - USM

BHXUSM

Birmingham

Thu 23/4

18:50-21:10

2 stops20h 20m

Ko Samui

Mon 22/6

10:05-08:05

2 stops28h 00m

£648

Newcastle upon TyneKo Samui

NCL - USM

NCLUSM

Newcastle upon Tyne

Mon 4/5

12:00-21:10

2 stops27h 10m

Ko Samui

Mon 25/5

16:25-10:45

2 stops24h 20m

£728

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Mon 11/5

20:35-18:50

1 stop16h 15m

Ko Samui

Sat 16/5

08:40-19:30

1 stop16h 50m

£731

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Mon 11/5

10:15-17:20

1 stop25h 05m

Ko Samui

Sat 16/5

19:45-06:55

1 stop17h 10m

£741

EdinburghKo Samui

EDI - USM

EDIUSM

Edinburgh Turnhouse

Wed 27/5

13:10-16:35

2 stops21h 25m

Ko Samui

Sun 31/5

08:45-08:30

2 stops29h 45m

£842

EdinburghKo Samui

EDI - USM

EDIUSM

Edinburgh Turnhouse

Wed 27/5

13:10-12:45

2 stops17h 35m

Ko Samui

Sun 31/5

09:15-08:30

2 stops29h 15m

£842

ManchesterKo Samui

MAN - USM

MANUSM

Manchester

Mon 23/2

21:30-18:15

2 stops37h 45m

Ko Samui

Mon 2/3

19:35-12:20

2 stops23h 45m

£898

ManchesterKo Samui

MAN - USM

MANUSM

Manchester

Sat 4/4

21:45-10:30

2 stops30h 45m

Ko Samui

Fri 24/4

13:30-06:25

2 stops22h 55m

£901

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Ko Samui from

Ko Samui flights insights and trends

Explore insights for your Ko Samui flight to craft the best travel plan

What is the cheapest month to fly to Ko Samui?

The cheapest month to fly to Ko Samui from United Kingdom is in May. Flight prices, which tend to average around £775, are often lower during this time because this is during the off-season. If you don’t want to visit Ko Samui in May, then you should wait until November to fly from United Kingdom, when ticket prices are also cheap, with an average price of £783.

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 United Kingdom. The lowest ticket price found for a Wednesday departure recently was £481. 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 £821.

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 United Kingdom to Ko Samui during this time can be as low as £487. Flights at midday are often more expensive, with an average ticket price of £792.

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

You are more likely to see cheaper flights to Ko Samui from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Ko Samui for around £880 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ko Samui from United Kingdom for as low as £757 on momondo.

Cheapest flights to Ko Samui

Find the cheapest flights to Ko Samui from your nearest city or airport
CHEAPEST MONTH TO FLY TO KO SAMUI FROM LONDON HEATHROW AIRPORTMay13% cheaperFlying from London Heathrow Airport to Ko Samui costs on average just £767 in May
MOST EXPENSIVE MONTH TO FLY TO KO SAMUI FROM LONDON HEATHROW AIRPORTDecember37% more expensiveIt costs about £1,212 for flights to Ko Samui from London Heathrow Airport in December
MOST POPULAR MONTH TO FLY TO KO SAMUI FROM LONDON HEATHROW AIRPORTMarch565% more users visitedMore momondo users searched in flights to Ko Samui from London Heathrow Airport in March than any other month

Cheap Ko Samui flight deals and tips

Summary info about Ko Samui flight prices, duration and airlines

Best One-Way Price

£272

Best Round-Trip Price

£639

Fastest flight time

18h 55m

Popular in

July
The best one-way flight price to Ko Samui from United Kingdom in the last 72 hours is £272 (Birmingham to Ko Samui).
The best round-trip flight price to Ko Samui from United Kingdom in the last 72 hours is £639 (Birmingham to Ko Samui).
The fastest flight to Ko Samui from United Kingdom takes 18h 55m (London City to Ko Samui).
July has the highest demand for flights to Ko Samui, with a 7% price increase on average.

Frequently asked questions about flying to Ko Samui

What is there to do in Ko Samui when it’s raining?

When planning your flight to Ko Samui, it is important to be aware that some months are not as ideal as others. Specifically, the months of January, May, or October could carry a higher chance of rain, as Ko Samui sees up to 5.1 inches (130 mm) or more. There are still things to do in Ko Samui even when it's raining, but be aware that rain is highly probable in the area. Many tourists kill time during rain and storms by going to shopping centres in the area, like Fishermans Village.

When is the best time to plan a beach trip to Ko Samui?

Visitors planning their holidays in Ko Samui should book their flights for February, March, or April if they are planning on visiting Lamai Beach. Another popular beach in the area is Chaweng Beach.

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

Most flyers found that booking tickets 80 days in advance of their planned departure date is the best time to get cheap flights to Ko Samui. During this timeframe, flight prices are around £879. Keep in mind that you might also find cheap flights to Ko Samui outside of this time window. In fact, momondo users recently found flights from United Kingdom to Ko Samui for £766.

Is there an alternative airport near Ko Samui?

Finding an alternative and possibly cheaper destination airport near Ko Samui is possible. If you are planning a flight to Ko Samui, consider booking flights to Surat Thani Airport (67 mi from Ko Samui city centre), Nakhon Si Thammarat Airport (73 mi from Ko Samui city centre) or Chumphon Airport (95 mi from Ko Samui city centre).

Is there a cheaper alternative to flying into Ko Samui?

Prices vary based on where travellers are departing from, but on average, the cheapest airport to fly to in Ko Samui is Chumphon Airport where the average price is £25. Users typically find the best prices when using momondo’s Airport-to-Airport Pricing Tool.

What is the absolute cheapest flight to Ko Samui?

Users booking trips to Ko Samui from Bangkok found flights 30% cheaper than the average price of flights to Ko Samui. To find the cheapest price to Ko Samui from your area, use momondo’s Airport-to-Airport Pricing Tool.

When did momondo last update prices for flights to Ko Samui Airport?

Prices for flights to Ko Samui Airport refresh daily.

How many operators does momondo search for flights to Ko Samui Airport?

How old do you have to be to fly 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 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.

Travelling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Pha Ngan
Ko Tao
Khanom

Why use momondo?

Why should I use momondo to find a flight deal to Ko Samui?

Finding the right flight to Ko Samui is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. These options 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 to Ko Samui with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ko Samui which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights to Ko Samui?

momondo provides multiple filters to help you find the best flight to Ko Samui. Filter by price, airline, airport, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight to Ko Samui right now. Can momondo alert me if prices change?

Price alerts on flights to Ko Samui are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ko Samui trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 27/2
Fri 6/3

Find better results for your trip to Ko Samui