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Cheap flights from Ko Samui to the United Kingdom from ฿14,028

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
USM — LHR
1 Sep — 8 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap 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 2 August 2026.

Sun 13/915:25
USM
-
LHR
2 stops26h 05m
Multiple Airlines
Sun 20/912:30
LHR
-
USM
2 stops22h 05m
Multiple Airlines
Deal found 30/7฿32,700
Thu 17/911:05
USM
-
LGW
2 stops25h 35m
Multiple Airlines
Thu 1/1009:00
LGW
-
USM
2 stops27h 50m
Multiple Airlines
Deal found 31/7฿33,902
Wed 16/918:25
USM
-
LHR
2 stops23h 40m
Multiple Airlines
Sun 27/912:35
LHR
-
USM
2 stops38h 45m
Multiple Airlines
Deal found 2/8฿34,403
Fri 11/915:25
USM
-
LHR
2 stops26h 05m
Multiple Airlines
Sun 13/920:35
LHR
-
USM
2 stops29h 50m
Multiple Airlines
Deal found 1/8฿34,570
Thu 17/917:35
USM
-
LHR
2 stops23h 55m
Multiple Airlines
Thu 1/1020:45
LHR
-
USM
2 stops28h 25m
Multiple Airlines
Deal found 31/7฿34,704
Thu 27/818:15
USM
-
LHR
2 stops32h 10m
Multiple Airlines
Sun 30/819:00
LHR
-
USM
2 stops30h 45m
Multiple Airlines
Deal found 1/8฿36,006
Tue 15/915:50
USM
-
LHR
2 stops21h 05m
กัลฟ์แอร์
Tue 6/1022:05
LHR
-
USM
2 stops35h 05m
กัลฟ์แอร์
Deal found 29/7฿36,507
Thu 27/818:15
USM
-
LGW
2 stops29h 50m
Multiple Airlines
Sun 30/818:00
LGW
-
USM
2 stops31h 45m
Multiple Airlines
Deal found 1/8฿36,775
Sun 13/913:30
USM
-
LGW
2 stops23h 10m
Multiple Airlines
Sun 20/911:35
LGW
-
USM
2 stops21h 35m
Multiple Airlines
Deal found 30/7฿37,944
Wed 23/916:25
USM
-
LGW
2 stops26h 10m
Emirates
Sat 26/910:05
LGW
-
USM
2 stops29h 05m
Emirates
Deal found 28/7฿40,282
Wed 23/919:15
USM
-
LGW
1 stop16h 40m
บริติชแอร์เวย์
Sat 26/922:15
LGW
-
USM
1 stop16h 15m
บริติชแอร์เวย์
Deal found 30/7฿45,626
Sun 13/908:45
USM
-
LCY
2 stops28h 40m
สวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Sun 20/914:20
LCY
-
USM
2 stops17h 25m
สวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Deal found 30/7฿52,206

Find 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 2 August 2026.

Round-trip from

฿32,700

One-way from

฿14,028
13/9-20/9
  • 13/9-20/9
  • 4 total stops
  • 48h 10m total
  • Ko Samui to United Kingdom
Search Deals
2/10
  • 2/10
  • 3 total stops
  • 57h 00m total
  • Ko Samui to United Kingdom
Search Deals

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 2 August 2026.
Use the filters below to find and compare flights from Ko Samui to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Thu 27/8

18:15-20:25

2 stops32h 10m

London Heathrow

Sun 30/8

19:00-07:45

2 stops30h 45m

฿36,006

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Thu 27/8

18:15-18:05

2 stops29h 50m

London Gatwick

Sun 30/8

18:00-07:45

2 stops31h 45m

฿36,775

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Wed 23/9

16:25-12:35

2 stops26h 10m

London Gatwick

Sat 26/9

10:05-21:10

2 stops29h 05m

฿40,282

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Thu 12/11

16:25-07:10

2 stops21h 45m

London Heathrow

Mon 16/11

13:40-21:05

2 stops24h 25m

฿41,284

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 15/9

09:15-19:20

1 stop16h 05m

London Heathrow

Tue 6/10

21:35-21:35

1 stop18h 00m

฿44,457

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 26/10

15:50-06:25

2 stops21h 35m

London Heathrow

Wed 28/10

09:25-10:40

2 stops18h 15m

฿44,490
Fastest return journey

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Wed 23/9

19:15-05:55

1 stop16h 40m

London Gatwick

Sat 26/9

22:15-20:30

1 stop16h 15m

฿45,626

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 26/10

07:00-19:05

1 stop19h 05m

London Heathrow

Wed 28/10

21:20-20:25

1 stop16h 05m

฿45,893

Ko SamuiLondon

USM - LCY

USMLCY

Ko Samui

Sun 13/9

08:45-07:25

2 stops28h 40m

London City

Sun 20/9

14:20-13:45

2 stops17h 25m

฿52,206

Ko SamuiLondon

USM - LCY

USMLCY

Ko Samui

Thu 17/9

16:25-08:40

2 stops22h 15m

London City

Thu 1/10

13:10-12:45

2 stops17h 35m

฿53,442

Flights are sorted by cheapest return flights first.

Deals found on 2/8

Showing 1-10 of 47 resultsSorted by cheapest first
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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?

    Emirates, EVA Air, and Qatar Airways can get you from Ko Samui to United Kingdom in just under 16h 05m. Your travel time can differ by up to 10h 05m. 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 Heathrow, Ko Samui - London Gatwick or Ko Samui - London City, 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ko Samui to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
Phuket City to Charles de Gaulle flights

Fly with Cheapflights

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

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

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ko Samui to United Kingdom flexibly with Cheapflights today.

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