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Cheap flights from the United Kingdom to Ko Samui from £268

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — USM
1 Apr — 8 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Ko Samui

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Ko Samui
Explore the most affordable flight options available from United Kingdom to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 March 2026.

Tue 7/406:35
MAN
-
USM
3 stops43h 10m
Multiple Airlines
Tue 21/408:40
USM
-
MAN
3 stops41h 05m
Multiple Airlines
Deal found 28/2£610
Sat 25/411:50
MAN
-
USM
3 stops37h 55m
Multiple Airlines
Sat 9/508:40
USM
-
MAN
2 stops31h 25m
Multiple Airlines
Deal found 27/2£637
Sun 12/414:35
MAN
-
USM
3 stops46h 15m
Multiple Airlines
Thu 30/409:15
USM
-
MAN
2 stops30h 50m
Multiple Airlines
Deal found 1/3£650
Thu 14/512:15
MAN
-
USM
2 stops26h 15m
Multiple Airlines
Thu 28/508:45
USM
-
MAN
2 stops28h 00m
Multiple Airlines
Deal found 27/2£653
Thu 23/408:45
MAN
-
USM
3 stops41h 00m
Multiple Airlines
Sun 3/511:45
USM
-
MAN
2 stops28h 55m
Multiple Airlines
Deal found 1/3£655
Wed 3/609:20
MAN
-
USM
2 stops30h 15m
Multiple Airlines
Wed 24/608:45
USM
-
MAN
2 stops28h 10m
Multiple Airlines
Deal found 26/2£656
Mon 7/909:20
MAN
-
USM
2 stops19h 25m
Multiple Airlines
Tue 22/906:00
USM
-
MAN
2 stops30h 55m
Multiple Airlines
Deal found 26/2£662
Tue 8/910:35
MAN
-
USM
2 stops24h 00m
Lufthansa
Tue 20/1016:25
USM
-
MAN
2 stops23h 25m
Lufthansa
Deal found 26/2£668
Tue 26/512:15
MAN
-
USM
2 stops24h 15m
Multiple Airlines
Tue 9/606:00
USM
-
MAN
2 stops30h 45m
Multiple Airlines
Deal found 28/2£675
Tue 14/413:55
BHX
-
USM
3 stops35h 50m
Multiple Airlines
Tue 21/408:40
USM
-
BHX
3 stops44h 55m
Multiple Airlines
Deal found 28/2£675
Mon 20/409:05
MAN
-
USM
3 stops30h 30m
Multiple Airlines
Thu 30/406:00
USM
-
MAN
2 stops34h 05m
Multiple Airlines
Deal found 27/2£676
Wed 3/618:40
MAN
-
USM
2 stops36h 05m
SWISS
Mon 22/609:15
USM
-
MAN
2 stops29h 00m
SWISS
Deal found 2/3£677

Find flight deals from United Kingdom to Ko Samui

Keep the following information in mind while searching for United Kingdom to Ko Samui flight deals. Data was last updated 2 March 2026.

Round-trip from

£610

One-way from

£268

Popular in

December

Cheapest in

May

Average price

£899
7/4-21/4
  • 7/4-21/4
  • 6 total stops
  • 84h 15m total
  • United Kingdom to Ko Samui
Search Deals
10/3
  • 10/3
  • 2 total stops
  • 29h 35m total
  • United Kingdom to Ko Samui
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£49 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£27 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom to Ko Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 2 March 2026.
Use the filters below to find and compare flights from the United Kingdom to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BirminghamKo Samui

BHX - USM

BHXUSM

Birmingham

Sun 26/4

17:55-17:05

2 stops17h 10m

Ko Samui

Mon 11/5

18:15-08:05

2 stops19h 50m

£707

LondonKo Samui

LCY - USM

LCYUSM

London City

Fri 15/5

13:10-12:45

2 stops17h 35m

Ko Samui

Sun 24/5

10:05-09:10

2 stops29h 05m

£782

EdinburghKo Samui

EDI - USM

EDIUSM

Edinburgh Turnhouse

Wed 27/5

06:10-21:10

2 stops33h 00m

Ko Samui

Sun 31/5

09:15-18:55

2 stops39h 40m

£783

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Wed 3/6

09:00-10:30

2 stops19h 30m

Ko Samui

Sun 14/6

17:55-06:40

2 stops18h 45m

£796

LondonKo Samui

LCY - USM

LCYUSM

London City

Sat 16/5

12:10-14:45

2 stops20h 35m

Ko Samui

Tue 26/5

11:55-07:55

2 stops26h 00m

£805

BirminghamKo Samui

BHX - USM

BHXUSM

Birmingham

Fri 28/8

18:05-21:10

2 stops21h 05m

Ko Samui

Sun 13/9

11:05-08:05

2 stops27h 00m

£810

ManchesterKo Samui

MAN - USM

MANUSM

Manchester

Thu 11/6

14:30-16:35

2 stops20h 05m

Ko Samui

Mon 15/6

19:55-13:00

2 stops23h 05m

£825

LondonKo Samui

LTN - USM

LTNUSM

London Luton

Thu 25/6

15:15-10:10

3 stops36h 55m

Ko Samui

Sun 5/7

08:40-19:55

3 stops41h 15m

£829

BirminghamKo Samui

BHX - USM

BHXUSM

Birmingham

Fri 28/8

10:25-21:10

2 stops28h 45m

Ko Samui

Sun 13/9

09:15-08:05

2 stops28h 50m

£830

EdinburghKo Samui

EDI - USM

EDIUSM

Edinburgh Turnhouse

Tue 14/4

07:20-18:30

3 stops29h 10m

Ko Samui

Tue 21/4

11:05-13:55

3 stops32h 50m

£858

Flights are sorted by cheapest return flights first.

Deals found on 28/2

Showing 1-10 of 60 resultsSorted by cheapest first
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2
3
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6

Best time to book a flight from United Kingdom to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from United Kingdom with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from the United Kingdom to Ko Samui

What is the cheapest month to book a flight from United Kingdom to Ko Samui?

Currently, January is the cheapest month in which you can book a flight from United Kingdom to Ko Samui (average of £257). Flying from United Kingdom to Ko Samui in August is currently the most expensive (average of £680). 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.

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

Find hourly flight availability from United Kingdom 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 2 March 2026.

It’s typically best to fly out from United Kingdom to Ko Samui at midday. Doing so could potentially save you 27% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from United Kingdom to Ko Samui?

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

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

How often are flights from the United Kingdom to Ko Samui delayed?

About 9% of weekly flights between United Kingdom and Ko Samui have experienced delays in the past year, with the average delay time being 155 minutes.

What is the most punctual flight time for the United Kingdom to Ko Samui flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on the United Kingdom to Ko Samui flights?

Over the past year, Virgin Atlantic have had the lowest number of delays on this route, with just 4% of flights being delayed.

Reviews of airlines servicing Ko Samui

Get insights into the airlines that provide service to Ko Samui. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ko Samui. Reviews last updated 2 March 2026.
Check out reviews from past customers who have flown with EVA Air, Singapore Airlines, andThai Airways from the United Kingdom to Ko Samui to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,362 reviews
Check prices

Comfort

8.3

Boarding

8.4

Food

8.1

Crew

8.6

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
EVA Air
8.4
Very Good
1,362 reviews
EVA Air
8.4
Very Good
1,362 reviews
Check prices

Comfort

8.3

Boarding

8.4

Food

8.1

Crew

8.6

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
Singapore Airlines
8.2
Very Good
1,465 reviews
EVA Air
8.4
Very Good
1,362 reviews
Check prices

Comfort

8.3

Boarding

8.4

Food

8.1

Crew

8.6

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
Thai Airways
7.8
Good
389 reviews
EVA Air
8.4
Very Good
1,362 reviews
Check prices

Comfort

8.3

Boarding

8.4

Food

8.1

Crew

8.6

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
KLM
7.7
Good
1,461 reviews
EVA Air
8.4
Very Good
1,362 reviews
Check prices

Comfort

8.3

Boarding

8.4

Food

8.1

Crew

8.6

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.
Qatar Airways
7.4
Good
3,745 reviews
EVA Air
8.4
Very Good
1,362 reviews
Check prices

Comfort

8.3

Boarding

8.4

Food

8.1

Crew

8.6

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
8.0
Excellent

Jack,Feb 2026

TPE - SFO

Premium Economy for a.long-haul flight was worth it for the extra room. It is a 2-5-2 layout, so unless you have a family, get a seat in the 2-seat section. Nice slippers and goody bag. Food was tasty, although it seemed a bit repetitive (i.e., each meal used the same ingredients slightly re-configured). Staff were excellent.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom 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 United Kingdom?

    Ko Samui (USM), located 2.1 mi from the city center, is the airport you fly into when you book flights from United Kingdom to Ko Samui.

  • How long is the flight from United Kingdom to Ko Samui?

    Departing from United Kingdom to Ko Samui will take you 17h 35m. United Kingdom and Ko Samui are separated by a distance of 6123 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from United Kingdom to Ko Samui one-way?

    £252 is the cheapest one-way deal found within the past few days, from Lufthansa. You may also be able to find cheap deals on Qatar Airways and Etihad Airways, with prices starting from £447 and £479, respectively.

  • What are the most popular routes from United Kingdom to Ko Samui?

    Most travelers choose London Heathrow - Ko Samui, London Stansted - Ko Samui or Manchester - Ko Samui when deciding on the best route from United Kingdom to Ko Samui.

  • Can I find deals for flights from United Kingdom to Ko Samui that include hotel bookings?

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

  • How can I find direct flights from United Kingdom to Ko Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Ko Samui.

  • Can I find deals for business class flights from United Kingdom to Ko Samui?

    Yes. Cheapflights offers flight deals from United Kingdom 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.

  • What is the cheapest month to book a flight from United Kingdom to Ko Samui?

    Currently, January is the cheapest month in which you can book a flight from United Kingdom to Ko Samui (average of £257). Flying from United Kingdom to Ko Samui in August is currently the most expensive (average of £680). 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.

See more FAQs

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

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Alternative routes for United Kingdom to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Suvarnabhumi flights
Gatwick to Suvarnabhumi flights
Stansted to Suvarnabhumi flights
London City to Suvarnabhumi flights
Manchester to Suvarnabhumi flights
Heathrow to Don Mueang Intl flights
Luton to Suvarnabhumi flights
Heathrow to Phuket City flights
Gatwick to Don Mueang Intl flights
Birmingham to Suvarnabhumi flights
Gatwick to Phuket City flights
Stansted to Phuket City flights
London City to Phuket City flights
Edinburgh to Suvarnabhumi flights
Manchester to Don Mueang Intl flights
Manchester to Phuket City flights
Heathrow to Ko Samui flights
Newcastle upon Tyne to Suvarnabhumi flights
Glasgow Intl to Suvarnabhumi flights
Gatwick to Ko Samui flights
Manchester to Ko Samui flights
London City to Ko Samui flights
Luton to Phuket City flights
Stansted to Ko Samui flights
Heathrow to Chiang Mai flights
Gatwick to Chiang Mai flights
Bristol to Suvarnabhumi flights
Heathrow to Krabi flights
Stansted to Chiang Mai flights
Southampton to Suvarnabhumi flights
Gatwick to Krabi flights
Birmingham to Phuket City flights
London City to Chiang Mai flights
Stansted to Krabi flights
Southend to Suvarnabhumi flights
Belfast Intl to Suvarnabhumi flights
Belfast City to Suvarnabhumi flights
Birmingham to Don Mueang Intl flights
Newcastle upon Tyne to Don Mueang Intl flights
Manchester to Krabi flights
Norwich to Suvarnabhumi flights
Madrid to Suvarnabhumi flights
Aberdeen to Suvarnabhumi flights
London City to Krabi flights
Manchester to Chiang Mai flights
Bruxelles-National to Suvarnabhumi flights
Edinburgh to Don Mueang Intl flights

Top 10 airlines flying from United Kingdom to Ko Samui

Discover the top 10 airlines that operate flights from United Kingdom to Ko Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 2 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest£113Average£142FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
Air IndiaCheapest£432Average£489FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Etihad AirwaysCheapest£437Average£831FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Austrian AirlinesCheapest£588Average£680FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
LufthansaCheapest£599Average£726FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
SWISSCheapest£603Average£712FlexibilityNo cancel feeOn-time79%
Search SWISS flights
KLMCheapest£631Average£914FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£654Average£1,131FlexibilityNo cancel feeOn-time77%
Search Air France flights
British AirwaysCheapest£720Average£1,101FlexibilityNo cancel feeOn-time70%
Search British Airways flights
EVA AirCheapest£723Average£832FlexibilityNo cancel feeOn-time74%
Search EVA Air flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from United Kingdom 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.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from United Kingdom to Ko Samui for you. Better yet — we are completely free to use.

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

Need flexible booking options for your flight to Ko Samui from United Kingdom? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on United Kingdom to Ko Samui flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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