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Cheap flights from Ko Samui to the United Kingdom from ฿9,932

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 24/11. Fares are subject to change and may not be available on all flights or dates of travel.
USM — LHR
17 Nov — 24 Nov1
1 adult
1 adult, Economy

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 18 October 2025.

Round-trip from

฿26,138

One-way from

฿9,932

Popular in

January

Cheapest in

June

Average price

฿48,028
22/12-10/1
  • 22/12-10/1
  • 3 total stops
  • 58h 55m total
  • Ko Samui to United Kingdom
Search Deals
24/11
  • 24/11
  • 2 total stops
  • 40h 20m total
  • Ko Samui to United Kingdom
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (฿202,814 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (฿90,155 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from Ko Samui to United Kingdom

Enter your travel dates to find the best prices.

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 18 October 2025.

Mon 22/1219:00USM - LGW
1 stop26h 25mMultiple Airlines
Sat 10/115:40LGW - USM
2 stops32h 30mMultiple Airlines
Deal found 16/10฿26,138
Mon 22/1219:00USM - LGW
1 stop26h 25mMultiple Airlines
Mon 12/110:05LGW - USM
2 stops38h 05mMultiple Airlines
Deal found 16/10฿26,432
Wed 24/1207:55USM - LGW
1 stop17h 35mMultiple Airlines
Sat 10/115:40LGW - USM
2 stops32h 30mMultiple Airlines
Deal found 16/10฿26,628
Sun 30/1118:15USM - LGW
2 stops31h 15mMultiple Airlines
Sun 7/1207:30LGW - USM
3 stops41h 30mMultiple Airlines
Deal found 16/10฿27,869
Mon 22/1219:00USM - LGW
1 stop26h 25mMultiple Airlines
Wed 14/117:00LGW - USM
2 stops21h 20mMultiple Airlines
Deal found 16/10฿29,307
Mon 22/1219:00USM - LGW
1 stop26h 25mMultiple Airlines
Sun 11/117:00LGW - USM
2 stops21h 20mMultiple Airlines
Deal found 16/10฿29,666
Wed 24/1207:55USM - LGW
1 stop17h 35mMultiple Airlines
Wed 14/117:00LGW - USM
2 stops21h 20mMultiple Airlines
Deal found 16/10฿29,797
Wed 24/1207:55USM - LGW
1 stop17h 35mMultiple Airlines
Mon 12/111:25LGW - USM
1 stop14h 15mMultiple Airlines
Deal found 16/10฿29,829
Wed 24/1207:55USM - LGW
1 stop17h 35mMultiple Airlines
Sun 11/117:00LGW - USM
2 stops21h 20mMultiple Airlines
Deal found 16/10฿30,156
Tue 23/1217:05USM - LHR
2 stops28h 25mเอทิฮัดแอร์เวย์
Sun 11/120:55LHR - USM
2 stops33h 10mเอทิฮัดแอร์เวย์
Deal found 16/10฿33,260
Sun 30/1116:25USM - LHR
2 stops22h 40mMultiple Airlines
Sun 7/1209:00LHR - USM
2 stops29h 05mMultiple Airlines
Deal found 16/10฿33,293
Mon 22/1208:20USM - LHR
2 stops40h 50mMultiple Airlines
Mon 12/108:45LHR - USM
2 stops29h 35mMultiple Airlines
Deal found 16/10฿33,521

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 18 October 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 22/12

19:00-14:25

1 stop26h 25m

London Gatwick

Sat 10/1

15:40-07:10

2 stops32h 30m

฿26,138

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Sun 30/11

18:15-23:55

3 stops36h 40m

London Gatwick

Sun 7/12

07:30-08:00

3 stops41h 30m

฿28,000

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Mon 22/12

19:00-14:25

1 stop26h 25m

London Gatwick

Sun 11/1

17:00-21:20

2 stops21h 20m

฿29,666

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Wed 24/12

07:55-18:30

1 stop17h 35m

London Gatwick

Mon 12/1

11:25-08:40

1 stop14h 15m

฿29,829

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Wed 24/12

08:30-18:30

1 stop17h 00m

London Gatwick

Wed 14/1

16:00-13:05

1 stop14h 05m

฿31,561

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Sat 20/12

07:15-18:20

1 stop18h 05m

London Gatwick

Sat 10/1

15:40-17:00

2 stops18h 20m

฿33,162

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 23/12

17:05-14:30

2 stops28h 25m

London Heathrow

Sun 11/1

20:55-13:05

2 stops33h 10m

฿33,260

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Sun 30/11

16:25-08:05

2 stops22h 40m

London Heathrow

Sun 7/12

09:00-21:05

2 stops29h 05m

฿33,293

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Mon 22/12

09:00-18:30

1 stop16h 30m

London Gatwick

Wed 14/1

16:00-13:05

1 stop14h 05m

฿33,391

Ko SamuiLondon

USM - LCY

USMLCY

Ko Samui

Mon 22/12

09:20-17:05

2 stops38h 45m

London City

Tue 13/1

09:50-13:05

2 stops44h 15m

฿33,619

Flights are sorted by cheapest return flights first.

Deals found on 16/10

Showing 1-10 of 55 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?

    เอทิฮัดแอร์เวย์ can get you from Ko Samui to United Kingdom in just under 28h 25m. Your travel time can differ by up to . There are 9888 km between Ko Samui and United Kingdom.

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

    The cheapet airlines for a one-way flight from Ko Samui to United Kingdom are เอทิฮัดแอร์เวย์ (฿15,813), Thai Airways (฿18,231), and สวิส อินเตอร์เนชั่นแนล แอร์ไลน์ (฿18,688).

  • 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.

See more FAQs

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Alternative routes for Ko Samui to United Kingdom

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