Find flights
When to book
FAQs
Thailand (ภาษาไทย)
ภาษาไทย

Cheap flights from Ko Samui to the United Kingdom from ฿14,122

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 22/1. Fares are subject to change and may not be available on all flights or dates of travel.
USM — LHR
5 Jan — 12 Jan1
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 6 December 2025.

Mon 15/1220:30USM - LGW
1 stop24h 55mMultiple Airlines
Tue 10/216:55LGW - USM
3 stops20h 55mMultiple Airlines
Deal found 5/12฿32,644
Mon 15/1216:25USM - LHR
2 stops27h 35mMultiple Airlines
Tue 10/209:00LHR - USM
2 stops29h 05mMultiple Airlines
Deal found 5/12฿33,951
Mon 15/1216:25USM - LCY
2 stops23h 15mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Tue 10/209:15LCY - USM
2 stops23h 20mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Deal found 5/12฿37,330
Mon 15/1207:55USM - LHR
1 stop18h 10mEVA Air
Tue 10/221:20LHR - USM
1 stop15h 30mEVA Air
Deal found 5/12฿41,538
Mon 15/1217:40USM - LGW
1 stop18h 50mบริติชแอร์เวย์
Tue 10/221:15LGW - USM
1 stop15h 35mบริติชแอร์เวย์
Deal found 5/12฿47,914

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 6 December 2025.

Round-trip from

฿30,572

One-way from

฿14,122
18/1-25/1
  • 18/1-25/1
  • 4 total stops
  • 55h 15m total
  • Ko Samui to United Kingdom
Search Deals
22/1
  • 22/1
  • 3 total stops
  • 43h 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 6 December 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 - LHR

USMLHR

Ko Samui

Sun 18/1

21:10-17:00

2 stops26h 50m

London Heathrow

Sun 25/1

21:00-08:25

2 stops28h 25m

฿30,572

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Mon 19/1

12:40-06:30

2 stops24h 50m

London Gatwick

Mon 26/1

07:30-18:25

3 stops27h 55m

฿31,847

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 19/1

11:40-08:05

2 stops27h 25m

London Heathrow

Mon 26/1

16:40-21:05

2 stops21h 25m

฿33,505

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 19/1

11:40-15:00

1 stop34h 20m

London Heathrow

Mon 26/1

17:50-19:35

1 stop18h 45m

฿36,979

Ko SamuiLondon

USM - LCY

USMLCY

Ko Samui

Mon 19/1

16:25-08:40

2 stops23h 15m

London City

Mon 26/1

17:45-21:05

2 stops20h 20m

฿38,095

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 20/1

13:25-11:40

2 stops29h 15m

London Heathrow

Tue 27/1

09:10-18:15

2 stops26h 05m

฿40,135

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Mon 9/3

11:40-05:55

2 stops25h 15m

London Gatwick

Fri 13/3

09:00-18:15

2 stops26h 15m

฿40,486

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Mon 9/3

17:40-05:30

1 stop18h 50m

London Gatwick

Fri 13/3

21:15-20:25

1 stop16h 10m

฿41,634

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 9/3

11:40-06:25

2 stops25h 45m

London Heathrow

Fri 13/3

08:40-18:15

2 stops26h 35m

฿41,761

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 9/3

13:25-05:55

1 stop23h 30m

London Heathrow

Fri 13/3

18:40-18:15

1 stop16h 35m

฿44,662

Flights are sorted by cheapest return flights first.

Deals found on 5/12

Showing 1-10 of 39 results
1
2
3
4

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?

    Cathay Pacific can get you from Ko Samui to United Kingdom in just under 34h 20m. Your travel time can differ by up to . There are 9888 km between Ko Samui and 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 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 Frankfurt flights
Phuket City to Charles de Gaulle flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights helps you search for flights from Ko Samui to United Kingdom via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights simply makes it quick and affordable to book flights from Ko Samui to United Kingdom by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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.

Can Cheapflights notify me if prices for flights from Ko Samui to United Kingdom become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.