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Cheap flights from Ko Samui to the United Kingdom from ฿10,472

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 26/5. Fares are subject to change and may not be available on all flights or dates of travel.
USM — LHR
7 Mar — 14 Mar1
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 5 February 2026.

Wed 11/318:30
USM
-
LHR
2 stops31h 05m
Multiple Airlines
Sat 14/321:00
LHR
-
USM
2 stops28h 25m
Multiple Airlines
Deal found 3/2฿34,011
Wed 18/317:40
USM
-
LHR
2 stops31h 55m
Multiple Airlines
Wed 19/813:30
LHR
-
USM
2 stops25h 40m
Multiple Airlines
Deal found 3/2฿34,802
Sun 1/321:40
USM
-
LHR
2 stops26h 20m
Multiple Airlines
Wed 11/319:25
LHR
-
USM
2 stops16h 30m
Multiple Airlines
Deal found 4/2฿35,340
Fri 6/319:00
USM
-
LGW
3 stops35h 50m
Multiple Airlines
Fri 13/316:35
LGW
-
USM
3 stops21h 15m
Multiple Airlines
Deal found 4/2฿37,175
Thu 19/314:30
USM
-
LHR
2 stops23h 05m
Multiple Airlines
Wed 19/815:30
LHR
-
USM
2 stops23h 40m
Multiple Airlines
Deal found 3/2฿37,618
Thu 19/307:15
USM
-
LHR
1 stop18h 50m
EVA Air
Wed 19/821:35
LHR
-
USM
1 stop27h 55m
EVA Air
Deal found 3/2฿38,788
Fri 6/307:55
USM
-
LHR
2 stops29h 00m
Multiple Airlines
Fri 13/317:40
LHR
-
USM
2 stops31h 45m
Multiple Airlines
Deal found 4/2฿39,516
Fri 6/307:55
USM
-
LHR
1 stop18h 10m
EVA Air
Fri 13/321:20
LHR
-
USM
1 stop16h 05m
EVA Air
Deal found 4/2฿39,547
Fri 20/319:35
USM
-
LGW
2 stops28h 45m
Multiple Airlines
Fri 27/307:00
LGW
-
USM
3 stops28h 25m
Multiple Airlines
Deal found 3/2฿39,737
Fri 20/321:10
USM
-
LGW
2 stops27h 10m
Multiple Airlines
Wed 19/811:25
LGW
-
USM
2 stops19h 20m
Multiple Airlines
Deal found 3/2฿39,864
Sun 1/318:40
USM
-
LHR
1 stop31h 25m
EVA Air
Wed 11/321:20
LHR
-
USM
1 stop14h 20m
EVA Air
Deal found 4/2฿39,895
Sun 1/319:45
USM
-
LGW
2 stops22h 55m
Multiple Airlines
Wed 11/316:55
LGW
-
USM
3 stops20h 55m
Multiple Airlines
Deal found 4/2฿41,034

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 5 February 2026.

Round-trip from

฿34,011

One-way from

฿10,472
11/3-14/3
  • 11/3-14/3
  • 4 total stops
  • 59h 30m total
  • Ko Samui to United Kingdom
Search Deals
26/5
  • 26/5
  • 2 total stops
  • 39h 25m 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 5 February 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 - LHR

USMLHR

Ko Samui

Sun 1/3

21:40-17:00

2 stops26h 20m

London Heathrow

Wed 11/3

19:25-18:55

2 stops16h 30m

฿35,340

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Fri 6/3

19:00-23:50

3 stops35h 50m

London Gatwick

Fri 13/3

16:35-20:50

3 stops21h 15m

฿37,175

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Fri 6/3

07:55-05:55

2 stops29h 00m

London Heathrow

Fri 13/3

17:40-08:25

2 stops31h 45m

฿39,516

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Wed 18/3

09:00-19:05

1 stop17h 05m

London Heathrow

Wed 19/8

21:35-07:10

1 stop27h 35m

฿39,769

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 17/3

09:00-19:05

1 stop17h 05m

London Heathrow

Wed 19/8

21:35-07:10

1 stop27h 35m

฿39,769

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 16/3

08:30-19:05

1 stop17h 35m

London Heathrow

Wed 19/8

21:35-07:10

1 stop27h 35m

฿39,769

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Sun 1/3

18:40-19:05

1 stop31h 25m

London Heathrow

Wed 11/3

21:20-18:40

1 stop14h 20m

฿39,895

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

฿40,845

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Sun 1/3

19:45-11:40

2 stops22h 55m

London Gatwick

Wed 11/3

16:55-20:50

3 stops20h 55m

฿41,034

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Thu 19/3

09:00-19:05

1 stop17h 05m

London Heathrow

Thu 26/3

06:40-18:25

2 stops28h 45m

฿42,869

Flights are sorted by cheapest return flights first.

Deals found on 2/2

Showing 1-10 of 52 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?

    EVA Air and สวิส อินเตอร์เนชั่นแนล แอร์ไลน์ can get you from Ko Samui to United Kingdom in just under 17h 05m. Your travel time can differ by up to 12h 35m. 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.

See more FAQs

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Alternative routes for Ko Samui to United Kingdom

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Fly with Cheapflights

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

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