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Cheap flights from Ko Samui to the United Kingdom from ฿9,308

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 13/11. Fares are subject to change and may not be available on all flights or dates of travel.
USM — LHR
31 Aug — 7 Sep1
1 adult

Cheap flight deals from Ko Samui to United Kingdom

Keep the following information in mind while searching for Ko Samui to United Kingdom flight deals. Data was last updated 26 August 2025.

Round-trip from

฿30,259

One-way from

฿9,308

Popular in

January

Cheapest in

October

Average price

฿41,221
15/12-15/1
  • 15/12-15/1
  • 4 total stops
  • 54h 40m total
  • Ko Samui to United Kingdom
Search Deals
13/11
  • 13/11
  • 1 total stop
  • 18h 25m total
  • Ko Samui to United Kingdom
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (฿277,504 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (฿88,000 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Ko Samui to United Kingdom

Cheapest flights from Ko Samui to United Kingdom
Explore the most affordable flight options available from Ko Samui to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 August 2025.

Mon 15/1207:00USM - LGW
2 stops30h 30mMultiple Airlines
Thu 15/110:30LGW - USM
2 stops24h 10mMultiple Airlines
Deal found 24/8฿30,259
Sun 5/1019:40USM - LHR
3 stops32h 45mMultiple Airlines
Sun 12/1018:30LHR - USM
3 stops31h 20mMultiple Airlines
Deal found 26/8฿32,075
Thu 9/1012:30USM - LGW
3 stops33h 45mMultiple Airlines
Thu 16/1005:45LGW - USM
3 stops32h 40mMultiple Airlines
Deal found 25/8฿32,172
Tue 9/912:05USM - LGW
2 stops32h 55mMultiple Airlines
Tue 16/911:25LGW - USM
2 stops25h 05mMultiple Airlines
Deal found 24/8฿33,761
Mon 15/1212:15USM - LHR
2 stops25h 20mMultiple Airlines
Thu 15/120:25LHR - USM
2 stops29h 00mMultiple Airlines
Deal found 24/8฿34,442
Mon 1/919:10USM - LGW
2 stops49h 50mMultiple Airlines
Mon 8/911:35LGW - USM
2 stops27h 15mMultiple Airlines
Deal found 24/8฿34,572
Mon 1/919:25USM - LHR
2 stops29h 15mMultiple Airlines
Mon 8/922:40LHR - USM
2 stops39h 45mMultiple Airlines
Deal found 24/8฿35,350
Tue 9/919:15USM - LHR
2 stops19h 05mออสเตรียนแอร์ไลน์
Tue 16/909:05LHR - USM
2 stops27h 25mออสเตรียนแอร์ไลน์
Deal found 24/8฿35,740
Tue 9/919:15USM - LHR
1 stop30h 00mMultiple Airlines
Tue 16/910:00LHR - USM
2 stops20h 45mMultiple Airlines
Deal found 24/8฿37,134
Sun 5/1013:30USM - LGW
2 stops29h 55mMultiple Airlines
Sun 12/1014:55LGW - USM
2 stops40h 15mMultiple Airlines
Deal found 26/8฿37,945
Tue 9/908:45USM - LCY
2 stops30h 05mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Tue 16/919:20LCY - USM
2 stops19h 50mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Deal found 24/8฿38,658
Thu 9/1016:25USM - LHR
2 stops44h 25mQatar Airways
Thu 16/1008:05LHR - USM
2 stops20h 25mQatar Airways
Deal found 25/8฿39,729

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ko Samui to United Kingdom 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 17,341 searches. Data last updated 26 August 2025.
Use the filters below to find and compare flights from Ko Samui to the United Kingdom that are best for you.

Fly from

Ko Samui

Fly to

United Kingdom

Route

Depart

Return

Price

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Mon 15/12

07:00-06:30

2 stops30h 30m

London Gatwick

Thu 15/1

10:30-17:40

2 stops24h 10m

฿30,259

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Sun 5/10

19:40-22:25

3 stops32h 45m

London Heathrow

Sun 12/10

18:30-07:50

3 stops31h 20m

฿32,075

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Thu 9/10

12:30-16:15

3 stops33h 45m

London Gatwick

Thu 16/10

05:45-20:25

3 stops32h 40m

฿32,172

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Tue 9/9

12:05-15:00

2 stops32h 55m

London Gatwick

Tue 16/9

11:25-18:30

2 stops25h 05m

฿33,761

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 15/12

12:15-06:35

2 stops25h 20m

London Heathrow

Thu 15/1

20:25-08:25

2 stops29h 00m

฿34,442

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 9/9

19:15-08:20

2 stops19h 05m

London Heathrow

Tue 16/9

09:05-18:30

2 stops27h 25m

฿35,740

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 9/9

19:15-19:15

1 stop30h 00m

London Heathrow

Tue 16/9

10:00-12:45

2 stops20h 45m

฿37,134

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Sun 5/10

13:30-13:25

2 stops29h 55m

London Gatwick

Sun 12/10

14:55-13:10

2 stops40h 15m

฿37,945

Ko SamuiLondon

USM - LCY

USMLCY

Ko Samui

Tue 9/9

08:45-08:50

2 stops30h 05m

London City

Tue 16/9

19:20-21:10

2 stops19h 50m

฿38,658

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Thu 9/10

16:25-06:50

2 stops44h 25m

London Heathrow

Thu 16/10

08:05-10:30

2 stops20h 25m

฿39,729

Flights are sorted by cheapest return flights first.

Deals found on 24/8

Showing 1-10 of 37 results
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Best time to book a flight from Ko Samui to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Ko Samui 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 Ko Samui to the United Kingdom
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Ko Samui to United Kingdom. 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 from for flights from Ko Samui to United Kingdom?

    Ko Samui (USM), located 3.3 km from the city centre, is the airport you fly out of when you book flights from Ko Samui to United Kingdom.

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

    ออสเตรียนแอร์ไลน์ and สวิส อินเตอร์เนชั่นแนล แอร์ไลน์ can get you from Ko Samui to United Kingdom in just under 19h 05m. Your travel time can differ by up to 11h. There are 9888 km between Ko Samui and United Kingdom. This flight may include one or multiple stops.

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

    When deciding which route to take from Ko Samui to United Kingdom, consider Ko Samui - London City, Ko Samui - London Gatwick or Ko Samui - London Heathrow, as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ko Samui to United Kingdom 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 Ko Samui to United Kingdom?

    Currently, December is the cheapest month in which you can book a flight from Ko Samui to United Kingdom (average of ฿810). Flying from Ko Samui to United Kingdom in July is currently the most expensive (average of ฿1,019). 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

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Alternative routes for Ko Samui to United Kingdom

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