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Cheap flights from Ko Samui to the United Kingdom from ฿12,277

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 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
USM — LHR
20 Feb — 27 Feb1
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 21 January 2026.

Fri 6/311:10
USM
-
LGW
3 stops43h 40m
Multiple Airlines
Fri 13/313:10
LGW
-
USM
3 stops24h 15m
Multiple Airlines
Deal found 20/1฿32,013
Tue 4/811:05
USM
-
LGW
2 stops32h 20m
Multiple Airlines
Fri 18/913:35
LGW
-
USM
3 stops24h 55m
Multiple Airlines
Deal found 19/1฿32,728
Sat 7/308:45
USM
-
LGW
1 stop16h 35m
Multiple Airlines
Sat 14/310:30
LGW
-
USM
2 stops38h 20m
Multiple Airlines
Deal found 21/1฿34,188
Fri 6/321:40
USM
-
LHR
2 stops27h 55m
Multiple Airlines
Fri 13/317:50
LHR
-
USM
2 stops16h 50m
Multiple Airlines
Deal found 20/1฿34,499
Sat 7/318:15
USM
-
LHR
2 stops32h 05m
Multiple Airlines
Sat 14/316:25
LHR
-
USM
3 stops21h 25m
Multiple Airlines
Deal found 21/1฿34,841
Tue 20/121:20
USM
-
LGW
1 stop28h 10m
Multiple Airlines
Tue 27/111:05
LGW
-
USM
2 stops37h 55m
Multiple Airlines
Deal found 18/1฿35,494
Tue 4/816:25
USM
-
LHR
2 stops20h 40m
Multiple Airlines
Fri 18/919:30
LHR
-
USM
2 stops16h 15m
Multiple Airlines
Deal found 19/1฿35,649
Tue 20/107:00
USM
-
LHR
2 stops20h 50m
Multiple Airlines
Tue 27/111:30
LHR
-
USM
2 stops21h 10m
Multiple Airlines
Deal found 18/1฿35,742
Mon 25/507:50
USM
-
LHR
1 stop17h 30m
Multiple Airlines
Mon 25/522:10
LHR
-
USM
2 stops27h 00m
Multiple Airlines
Deal found 19/1฿37,452
Tue 20/111:40
USM
-
LHR
1 stop24h 45m
Cathay Pacific
Tue 27/117:50
LHR
-
USM
1 stop18h 45m
Cathay Pacific
Deal found 18/1฿38,260
Fri 6/308:30
USM
-
LHR
1 stop17h 35m
EVA Air
Fri 13/321:20
LHR
-
USM
1 stop14h 20m
EVA Air
Deal found 20/1฿38,788
Mon 25/508:45
USM
-
LHR
1 stop16h 35m
EVA Air
Mon 25/521:35
LHR
-
USM
1 stop18h 00m
EVA Air
Deal found 19/1฿38,819

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 21 January 2026.

Round-trip from

฿32,013

One-way from

฿12,277
6/3-13/3
  • 6/3-13/3
  • 6 total stops
  • 67h 55m total
  • Ko Samui to United Kingdom
Search Deals
8/2
  • 8/2
  • 2 total stops
  • 30h 55m 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 21 January 2026.
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

Fri 6/3

11:10-23:50

3 stops43h 40m

London Gatwick

Fri 13/3

13:10-20:25

3 stops24h 15m

฿32,013

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Sat 7/3

08:45-18:20

1 stop16h 35m

London Gatwick

Sat 14/3

10:30-07:50

2 stops38h 20m

฿34,188

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Fri 6/3

21:40-18:35

2 stops27h 55m

London Heathrow

Fri 13/3

17:50-17:40

2 stops16h 50m

฿34,499

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Sat 7/3

18:15-19:20

2 stops32h 05m

London Heathrow

Sat 14/3

16:25-20:50

3 stops21h 25m

฿34,841

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 25/5

07:50-19:20

1 stop17h 30m

London Heathrow

Mon 25/5

22:10-07:10

2 stops27h 00m

฿37,452

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 25/5

08:45-19:20

1 stop16h 35m

London Heathrow

Mon 25/5

21:35-21:35

1 stop18h 00m

฿38,819

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Sat 7/3

19:35-19:05

1 stop30h 30m

London Heathrow

Sat 14/3

21:20-20:25

1 stop16h 05m

฿40,435

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 9/3

07:55-19:05

1 stop18h 10m

London Heathrow

Wed 11/3

21:20-21:20

1 stop17h 00m

฿40,529

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Mon 9/3

14:05-05:55

2 stops22h 50m

London Gatwick

Wed 11/3

08:40-08:25

2 stops40h 45m

฿43,606

Ko SamuiLondon

USM - LCY

USMLCY

Ko Samui

Fri 6/3

16:25-08:00

2 stops22h 35m

London City

Fri 13/3

19:20-21:05

2 stops18h 45m

฿44,849

Flights are sorted by cheapest return flights first.

Deals found on 20/1

Showing 1-10 of 40 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.

  • 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 City or Ko Samui - London Gatwick, 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

See prices for flight routes from nearby airports that may be better suited for you.
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Why should you use Cheapflights to find cheap flight tickets from Ko Samui to United Kingdom?

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