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Cheap flights from Ko Samui to the United Kingdom from ฿12,015

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
16 Oct — 23 Oct1
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 16 September 2025.

Round-trip from

฿26,154

One-way from

฿12,015

Popular in

January

Cheapest in

October

Average price

฿48,884
9/11-26/11
  • 9/11-26/11
  • 3 total stops
  • 48h 05m total
  • Ko Samui to United Kingdom
Search Deals
24/11
  • 24/11
  • 3 total stops
  • 42h 50m total
  • Ko Samui to United Kingdom
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (฿239,016 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (฿81,457 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 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 16 September 2025.

Sun 9/1119:00USM - LGW
1 stop30h 30mMultiple Airlines
Wed 26/1106:35LGW - USM
2 stops17h 35mMultiple Airlines
Deal found 16/9฿26,154
Sun 9/1119:00USM - LGW
1 stop30h 30mMultiple Airlines
Sat 29/1106:40LGW - USM
2 stops18h 30mMultiple Airlines
Deal found 16/9฿26,217
Mon 10/1107:00USM - LGW
1 stop18h 30mMultiple Airlines
Wed 26/1106:35LGW - USM
2 stops17h 35mMultiple Airlines
Deal found 16/9฿26,344
Mon 10/1107:00USM - LGW
1 stop18h 30mMultiple Airlines
Tue 25/1106:35LGW - USM
2 stops19h 45mMultiple Airlines
Deal found 16/9฿26,376
Thu 13/1107:00USM - LGW
1 stop18h 25mMultiple Airlines
Wed 26/1116:00LGW - USM
1 stop14h 05mMultiple Airlines
Deal found 16/9฿26,946
Sun 9/1119:00USM - LGW
1 stop30h 30mMultiple Airlines
Sun 30/1106:35LGW - USM
2 stops18h 35mMultiple Airlines
Deal found 16/9฿27,073
Sun 9/1119:00USM - LGW
1 stop30h 30mMultiple Airlines
Mon 1/1206:35LGW - USM
2 stops18h 35mMultiple Airlines
Deal found 16/9฿27,168
Mon 10/1107:00USM - LGW
1 stop18h 30mMultiple Airlines
Sun 30/1106:35LGW - USM
2 stops19h 05mMultiple Airlines
Deal found 16/9฿27,232
Mon 10/1107:00USM - LGW
1 stop18h 30mMultiple Airlines
Mon 1/1206:35LGW - USM
2 stops19h 05mMultiple Airlines
Deal found 16/9฿27,327
Thu 13/1107:00USM - LGW
1 stop18h 25mMultiple Airlines
Fri 28/1106:20LGW - USM
2 stops18h 50mMultiple Airlines
Deal found 16/9฿28,753
Thu 13/1107:00USM - LGW
1 stop18h 25mMultiple Airlines
Sun 30/1106:35LGW - USM
2 stops18h 35mMultiple Airlines
Deal found 16/9฿29,609
Mon 10/1107:00USM - LHR
2 stops29h 35mMultiple Airlines
Fri 28/1110:25LHR - USM
2 stops22h 15mMultiple Airlines
Deal found 16/9฿31,511

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 16 September 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

Sun 9/11

19:00-18:30

1 stop30h 30m

London Gatwick

Thu 27/11

06:35-08:10

2 stops18h 35m

฿26,217

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Sun 9/11

19:00-18:30

1 stop30h 30m

London Gatwick

Sat 29/11

06:40-08:10

2 stops18h 30m

฿26,217

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Mon 10/11

07:00-18:30

1 stop18h 30m

London Gatwick

Fri 28/11

06:20-08:10

2 stops18h 50m

฿26,344

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Mon 10/11

07:00-18:30

1 stop18h 30m

London Gatwick

Sun 30/11

06:35-08:40

2 stops19h 05m

฿27,232

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Thu 13/11

07:00-18:25

1 stop18h 25m

London Gatwick

Mon 1/12

06:35-08:10

2 stops18h 35m

฿29,704

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Fri 7/11

13:25-06:40

2 stops24h 15m

London Heathrow

Thu 27/11

19:20-13:05

2 stops34h 45m

฿31,702

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Thu 30/10

08:30-18:30

1 stop17h 00m

London Gatwick

Thu 6/11

10:30-07:10

2 stops37h 40m

฿31,765

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Sun 9/11

09:35-21:40

2 stops19h 05m

London Heathrow

Fri 28/11

09:00-10:40

2 stops18h 40m

฿32,082

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Fri 7/11

13:25-06:40

2 stops24h 15m

London Heathrow

Sun 30/11

19:20-18:15

2 stops39h 55m

฿32,209

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Sat 8/11

08:15-06:40

2 stops29h 25m

London Heathrow

Sun 30/11

20:55-18:15

2 stops38h 20m

฿32,209

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 49 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 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 5h 10m. There are 9888 km between Ko Samui and United Kingdom. This flight may include one or multiple stops.

  • 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 Qatar Airways (฿17,373), Emirates (฿19,592), and สวิส อินเตอร์เนชั่นแนล แอร์ไลน์ (฿24,093).

  • 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 ฿1,014). 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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