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Cheap flights from the United Kingdom to Ko Samui from £291

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — USM
16 Jul — 23 Jul1
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 11 July 2025.

Round-trip from

£634

One-way from

£291

Popular in

December

Cheapest in

September

Average price

£1,149
Lufthansa
  • Lufthansa
  • 18/9-22/9
  • 4 total stops
  • 45h 25m total
  • United Kingdom to Ko Samui
10/9
  • 10/9
  • 3 total stops
  • 51h 30m total
  • United Kingdom to Ko Samui
Highest demand for flights based on searches. 3% potential increase in price (£27 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£18 potential savings vs. average return price).
Average for round-trip flights in July 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 11 July 2025.

Thu 18/911:00BHX - USM
2 stops24h 45mLufthansa
Mon 22/919:30USM - BHX
2 stops20h 40mLufthansa
Deal found 9/7£634
Fri 19/918:40MAN - USM
2 stops37h 05mMultiple Airlines
Sat 27/913:30USM - MAN
2 stops27h 00mMultiple Airlines
Deal found 10/7£696
Thu 18/917:55EDI - USM
2 stops21h 15mLufthansa
Mon 22/919:15USM - EDI
2 stops24h 05mLufthansa
Deal found 9/7£701
Thu 18/906:10GLA - USM
2 stops33h 00mLufthansa
Mon 22/916:25USM - GLA
2 stops36h 25mLufthansa
Deal found 9/7£702
Sun 7/906:00LHR - USM
2 stops33h 10mMultiple Airlines
Sat 20/913:30USM - LHR
2 stops25h 10mMultiple Airlines
Deal found 10/7£715
Mon 3/1117:10LHR - USM
2 stops20h 55mSWISS
Mon 1/1210:00USM - LHR
2 stops18h 40mSWISS
Deal found 9/7£717
Mon 3/1113:30LCY - USM
2 stops24h 35mMultiple Airlines
Mon 1/1209:20USM - LCY
2 stops38h 45mMultiple Airlines
Deal found 11/7£717
Mon 20/1021:20LGW - USM
3 stops37h 25mMultiple Airlines
Sat 1/1112:25USM - LGW
3 stops34h 25mMultiple Airlines
Deal found 9/7£718
Tue 2/920:25LHR - USM
2 stops38h 25mLufthansa
Fri 12/913:30USM - LHR
2 stops25h 10mLufthansa
Deal found 10/7£722
Mon 20/1011:40LTN - USM
3 stops47h 05mMultiple Airlines
Sat 1/1112:25USM - LTN
3 stops36h 50mMultiple Airlines
Deal found 9/7£723
Mon 24/1117:05LHR - USM
2 stops21h 00mKLM
Sat 6/1207:00USM - LHR
2 stops20h 50mKLM
Deal found 10/7£724
Mon 6/1008:10LCY - USM
2 stops31h 00mSWISS
Mon 13/1008:45USM - LCY
2 stops30h 05mSWISS
Deal found 11/7£758

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 11 July 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

Thu 18/9

11:00-17:45

2 stops24h 45m

Ko Samui

Mon 22/9

19:30-10:10

2 stops20h 40m

£634

ManchesterKo Samui

MAN - USM

MANUSM

Manchester

Fri 19/9

18:40-13:45

2 stops37h 05m

Ko Samui

Sat 27/9

13:30-10:30

2 stops27h 00m

£696

EdinburghKo Samui

EDI - USM

EDIUSM

Edinburgh Turnhouse

Thu 18/9

17:55-21:10

2 stops21h 15m

Ko Samui

Mon 22/9

19:15-13:20

2 stops24h 05m

£701

GlasgowKo Samui

GLA - USM

GLAUSM

Glasgow Intl

Thu 18/9

06:10-21:10

2 stops33h 00m

Ko Samui

Mon 22/9

16:25-22:50

2 stops36h 25m

£702

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Sun 7/9

06:00-21:10

2 stops33h 10m

Ko Samui

Sat 20/9

13:30-08:40

2 stops25h 10m

£715

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Mon 3/11

17:10-21:05

2 stops20h 55m

Ko Samui

Mon 1/12

10:00-21:40

2 stops18h 40m

£717

LondonKo Samui

LCY - USM

LCYUSM

London City

Mon 3/11

13:30-21:05

2 stops24h 35m

Ko Samui

Mon 1/12

09:20-17:05

2 stops38h 45m

£717

LondonKo Samui

LGW - USM

LGWUSM

London Gatwick

Mon 20/10

21:20-16:45

3 stops37h 25m

Ko Samui

Sat 1/11

12:25-15:50

3 stops34h 25m

£718

LondonKo Samui

LHR - USM

LHRUSM

London Heathrow

Mon 5/1

19:30-21:05

2 stops42h 35m

Ko Samui

Mon 19/1

16:25-08:45

2 stops23h 20m

£718

LondonKo Samui

LTN - USM

LTNUSM

London Luton

Mon 20/10

11:40-16:45

3 stops47h 05m

Ko Samui

Sat 1/11

12:25-18:15

3 stops36h 50m

£723

Flights are sorted by cheapest return flights first.

Deals found on 9/7

Showing 1-10 of 50 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 11 July 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 11 July 2025.
Check out reviews from past customers who have flown with EVA Air, Emirates, andSingapore Airlines 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

Crew

8.6

Comfort

8.3

Food

8.1

Overall

8.4

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

Crew

8.6

Comfort

8.3

Food

8.1

Overall

8.4

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

Crew

8.6

Comfort

8.3

Food

8.1

Overall

8.4

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

Crew

8.6

Comfort

8.3

Food

8.1

Overall

8.4

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

Crew

8.6

Comfort

8.3

Food

8.1

Overall

8.4

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

Crew

8.6

Comfort

8.3

Food

8.1

Overall

8.4

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.

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

    £419 is the cheapest one-way deal found within the past few days, from SWISS. You may also be able to find cheap deals on Lufthansa and Qatar Airways, with prices starting from £458 and £525, respectively.

  • 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 the United Kingdom?

Book flights to the United Kingdom 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 11 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest£107Average£143FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
LufthansaCheapest£495Average£752FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapest£596Average£779FlexibilityNo cancel feeOn-time77%
Search Air France flights
SWISSCheapest£601Average£721FlexibilityNo cancel feeOn-time79%
Search SWISS flights
KLMCheapest£605Average£939FlexibilityNo cancel feeOn-time75%
Search KLM flights
EmiratesCheapest£615Average£875FlexibilityNo cancel feeOn-time75%
Search Emirates flights
Turkish AirlinesCheapest£654Average£832FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Austrian AirlinesCheapest£663Average£730FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Etihad AirwaysCheapest£670Average£815FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
EVA AirCheapest£714Average£810FlexibilityNo 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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