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Cheap flights from Ko Samui to the United Kingdom from ฿11,810

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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
USM — LHR
23 Jun — 30 Jun1
1 adult

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 18 June 2025.

Round-trip from

฿33,998

One-way from

฿11,810

Popular in

January

Cheapest in

October

Average price

฿33,348
15/9-9/10
  • 15/9-9/10
  • 4 total stops
  • 42h 00m total
  • Ko Samui to United Kingdom
Search Deals
12/7
  • 12/7
  • 2 total stops
  • 33h 45m total
  • Ko Samui to United Kingdom
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (฿273,228 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (฿97,694 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 18 June 2025.

Mon 15/909:15USM - LHR
2 stops18h 30mMultiple Airlines
Thu 9/1015:00LHR - USM
2 stops23h 30mMultiple Airlines
Deal found 15/6฿33,998
Tue 1/718:25USM - LGW
2 stops26h 35mMultiple Airlines
Thu 10/718:00LGW - USM
2 stops21h 35mMultiple Airlines
Deal found 17/6฿35,397
Tue 22/708:20USM - LHR
1 stop28h 15mแควนตัสแอร์เวย์
Tue 12/820:50LHR - USM
1 stop39h 25mแควนตัสแอร์เวย์
Deal found 16/6฿40,212
Mon 15/907:00USM - LHR
1 stop18h 20mEVA Air
Thu 9/1021:35LHR - USM
1 stop17h 15mEVA Air
Deal found 15/6฿40,407
Sun 17/816:25USM - LHR
2 stops35h 20mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Fri 5/920:05LHR - USM
2 stops43h 05mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Deal found 17/6฿43,661
Mon 21/717:55USM - LHR
2 stops18h 30mQatar Airways
Wed 13/810:50LHR - USM
2 stops17h 20mQatar Airways
Deal found 16/6฿44,019
Tue 22/713:30USM - LCY
2 stops24h 40mMultiple Airlines
Tue 12/808:45LCY - USM
2 stops46h 25mMultiple Airlines
Deal found 16/6฿45,125
Wed 23/719:15USM - LHR
2 stops19h 30mออสเตรียนแอร์ไลน์
Wed 13/819:30LHR - USM
2 stops17h 25mออสเตรียนแอร์ไลน์
Deal found 16/6฿45,418
Wed 23/715:25USM - LGW
2 stops21h 15mQatar Airways
Wed 13/809:00LGW - USM
2 stops18h 20mQatar Airways
Deal found 16/6฿45,548
Wed 23/716:25USM - LHR
2 stops23h 30mลุฟท์ฮันซ่า
Tue 12/806:30LHR - USM
2 stops32h 40mลุฟท์ฮันซ่า
Deal found 16/6฿47,695
Wed 23/716:25USM - LCY
2 stops22h 25mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Thu 14/819:20LCY - USM
2 stops19h 50mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Deal found 16/6฿50,070
Wed 23/716:25USM - LGW
2 stops31h 30mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Fri 15/818:40LGW - USM
2 stops20h 35mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Deal found 16/6฿52,901

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 18 June 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

Mon 15/9

09:15-21:45

2 stops18h 30m

London Heathrow

Thu 9/10

15:00-20:30

2 stops23h 30m

฿33,998

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Tue 1/7

18:25-15:00

2 stops26h 35m

London Gatwick

Thu 10/7

18:00-21:35

2 stops21h 35m

฿35,397

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 22/7

08:20-06:35

1 stop28h 15m

London Heathrow

Tue 12/8

20:50-18:15

1 stop39h 25m

฿40,212

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 15/9

07:00-19:20

1 stop18h 20m

London Heathrow

Thu 9/10

21:35-20:50

1 stop17h 15m

฿40,407

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Sun 17/8

16:25-21:45

2 stops35h 20m

London Heathrow

Fri 5/9

20:05-21:10

2 stops43h 05m

฿43,661

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 21/7

17:55-06:25

2 stops18h 30m

London Heathrow

Wed 13/8

10:50-10:10

2 stops17h 20m

฿44,019

Ko SamuiLondon

USM - LCY

USMLCY

Ko Samui

Tue 22/7

13:30-08:10

2 stops24h 40m

London City

Tue 12/8

08:45-13:10

2 stops46h 25m

฿45,125

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Wed 23/7

19:15-08:45

2 stops19h 30m

London Heathrow

Wed 13/8

19:30-18:55

2 stops17h 25m

฿45,418

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Wed 23/7

15:25-06:40

2 stops21h 15m

London Gatwick

Wed 13/8

09:00-09:20

2 stops18h 20m

฿45,548

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Wed 23/7

16:25-09:55

2 stops23h 30m

London Heathrow

Tue 12/8

06:30-21:10

2 stops32h 40m

฿47,695

Flights are sorted by cheapest return flights first.

Deals found on 16/6

Showing 1-10 of 31 results
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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

Rainfall in United Kingdom by month

Plan your trip to United Kingdom by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in United Kingdom ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit United Kingdom when rainfall is around 40.0 mm.

Temperature in United Kingdom by month

Plan your trip to United Kingdom by taking into account the average temperature totals by month.

If weather is an important factor for your trip to United Kingdom, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to United Kingdom. Reviews last updated 18 June 2025.
Read reviews from past customers who have flown EVA Air, Emirates and Singapore Airlines from Ko Samui to United Kingdom. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,205 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Overall

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very Good
1,205 reviews
EVA Air
8.4
Very Good
1,205 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Overall

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Emirates
8.1
Very Good
3,273 reviews
EVA Air
8.4
Very Good
1,205 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Overall

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Singapore Airlines
8.1
Very Good
1,310 reviews
EVA Air
8.4
Very Good
1,205 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Overall

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์
7.8
Good
1,363 reviews
EVA Air
8.4
Very Good
1,205 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Overall

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Thai Airways
7.7
Good
336 reviews
EVA Air
8.4
Very Good
1,205 reviews
Check prices

Boarding

8.4

Entertainment

8.0

Overall

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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 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 EVA Air (฿19,553), Qatar Airways (฿20,822), and แควนตัสแอร์เวย์ (฿28,500).

  • 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.

  • 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 ฿1,025). 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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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

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

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