Cheap flights from the United Kingdom to Ko Samui from £301

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 14/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — USM
3 9월 — 10 9월1
1 adult

Cheap 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 29 8월 2025.

Round-trip from

£644

One-way from

£301

Popular in

December

Cheapest in

September

Average price

£1,055
SWISS
  • SWISS
  • 6/12-16/12
  • 4 total stops
  • 43h 05m total
  • United Kingdom to Ko Samui
14/11
  • 14/11
  • 3 total stops
  • 41h 35m total
  • United Kingdom to Ko Samui
Highest demand for flights based on searches. 4% potential increase in price (£32 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£19 potential savings vs. average return price).
Average for round-trip flights in August 2025

Find flight deals from United Kingdom to Ko Samui

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 29 8월 2025.

토 6/1217:45BHX - USM
2 stops20h 20mMultiple Airlines
화 16/1216:25USM - BHX
2 stops22h 45mMultiple Airlines
Deal found 28/8£644
일 30/1118:50BHX - USM
2 stops19h 15mSWISS
화 9/1216:25USM - BHX
2 stops22h 45mSWISS
Deal found 26/8£649
월 1/1209:00BHX - USM
2 stops29h 05mMultiple Airlines
수 10/1211:40USM - BHX
2 stops32h 05mMultiple Airlines
Deal found 26/8£674
월 1/1217:45BHX - USM
2 stops20h 20mMultiple Airlines
화 9/1216:25USM - BHX
2 stops22h 45mMultiple Airlines
Deal found 26/8£677
월 27/1015:45LHR - USM
3 stops21h 40mMultiple Airlines
금 28/1108:15USM - LHR
2 stops28h 40mMultiple Airlines
Deal found 26/8£699
화 30/911:35LGW - USM
2 stops26h 55mMultiple Airlines
수 29/1007:00USM - LGW
2 stops30h 30mMultiple Airlines
Deal found 27/8£700
일 12/1009:30LHR - USM
2 stops29h 20mMultiple Airlines
일 19/1007:00USM - LHR
2 stops35h 45mMultiple Airlines
Deal found 28/8£702
토 25/1016:25LHR - USM
2 stops22h 40mMultiple Airlines
목 6/1110:00USM - LHR
2 stops29h 20mMultiple Airlines
Deal found 28/8£703
월 6/1006:00LHR - USM
2 stops29h 45mMultiple Airlines
월 13/1008:45USM - LHR
2 stops29h 10mMultiple Airlines
Deal found 28/8£704
일 28/910:00LHR - USM
2 stops20h 45mMultiple Airlines
금 17/1013:30USM - LHR
2 stops23h 25mMultiple Airlines
Deal found 28/8£705
월 27/1019:55STN - USM
2 stops31h 55mMultiple Airlines
금 28/1117:40USM - STN
2 stops26h 30mMultiple Airlines
Deal found 26/8£705
일 30/1114:30BHX - USM
2 stops23h 35mMultiple Airlines
수 10/1208:30USM - BHX
2 stops19h 50mMultiple Airlines
Deal found 26/8£705

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 29 8월 2025.
Use the filters below to find and compare flights from the United Kingdom to Ko Samui that are best for you.

Fly from

United Kingdom

Fly to

Ko Samui

Route

Depart

Return

Price

BirminghamKo Samui

BHX - USM

BHXUSM

Birmingham

토 6/12

17:45-21:05

2 stops20h 20m

Ko Samui

화 16/12

16:25-08:10

2 stops22h 45m

£644

BirminghamKo Samui

BHX - USM

BHXUSM

Birmingham

일 30/11

18:50-21:05

2 stops19h 15m

Ko Samui

화 9/12

16:25-08:10

2 stops22h 45m

£649

BirminghamKo Samui

BHX - USM

BHXUSM

Birmingham

월 1/12

09:00-21:05

2 stops29h 05m

Ko Samui

수 10/12

11:40-12:45

2 stops32h 05m

£674

BirminghamKo Samui

BHX - USM

BHXUSM

Birmingham

월 1/12

17:45-21:05

2 stops20h 20m

Ko Samui

화 9/12

16:25-08:10

2 stops22h 45m

£677

BirminghamKo Samui

BHX - USM

BHXUSM

Birmingham

화 2/12

17:45-21:05

2 stops20h 20m

Ko Samui

화 9/12

16:25-08:10

2 stops22h 45m

£677

EdinburghKo Samui

EDI - USM

EDIUSM

Edinburgh Turnhouse

목 22/1

12:45-13:05

2 stops41h 20m

Ko Samui

금 6/2

13:25-12:20

2 stops29h 55m

£686

EdinburghKo Samui

EDI - USM

EDIUSM

Edinburgh Turnhouse

화 20/1

12:45-13:05

2 stops41h 20m

Ko Samui

수 4/2

13:25-12:00

2 stops29h 35m

£698

EdinburghKo Samui

EDI - USM

EDIUSM

Edinburgh Turnhouse

화 20/1

12:45-13:05

2 stops41h 20m

Ko Samui

수 4/2

13:25-23:15

2 stops40h 50m

£699

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

월 27/10

15:45-20:25

3 stops21h 40m

Ko Samui

금 28/11

08:15-05:55

2 stops28h 40m

£699

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

화 30/9

11:35-20:30

2 stops26h 55m

Ko Samui

수 29/10

07:00-06:30

2 stops30h 30m

£700

Flights are sorted by cheapest return flights first.

Deals found on 28/8

Showing 1-10 of 60 results
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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, August is the cheapest month in which you can book a flight from United Kingdom to Ko Samui (average of £1,019). Flying from United Kingdom to Ko Samui in December is currently the most expensive (average of £1,669). 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 29 8월 2025.

When flying from United Kingdom to Ko Samui, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 29 8월 2025.
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.

Entertainment

8.0

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Entertainment

8.0

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Entertainment

8.0

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Entertainment

8.0

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Entertainment

8.0

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Entertainment

8.0

Comfort

8.3

Food

8.1

Overall

8.4

Crew

8.6

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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 19h 15m. United Kingdom and Ko Samui are separated by a distance of 6180 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes 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, August is the cheapest month in which you can book a flight from United Kingdom to Ko Samui (average of £1,019). Flying from United Kingdom to Ko Samui in December is currently the most expensive (average of £1,669). 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

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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.

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 29 8월 2025.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest£112Average£142FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
LufthansaCheapest£552Average£733FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Austrian AirlinesCheapest£596Average£721FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Air FranceCheapest£600Average£963FlexibilityNo cancel feeOn-time77%
Search Air France flights
SWISSCheapest£601Average£688FlexibilityNo cancel feeOn-time79%
Search SWISS flights
EmiratesCheapest£619Average£901FlexibilityNo cancel feeOn-time75%
Search Emirates flights
KLMCheapest£630Average£943FlexibilityNo cancel feeOn-time75%
Search KLM flights
Etihad AirwaysCheapest£675Average£836FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Turkish AirlinesCheapest£722Average£830FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
EVA AirCheapest£726Average£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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