How long is the flight from Ko Samui to London?

A quick flight from Ko Samui to London can take about 17h 40m. Qatar Airways provides one of the quickest options available for as low as ฿38,005. The distance between Ko Samui and London is about 9878 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What are the cheapest airlines to fly from Ko Samui to London one-way?

The cheapet airlines for a one-way flight from Ko Samui to London are เอทิฮัดแอร์เวย์ (฿11,779), สวิส อินเตอร์เนชั่นแนล แอร์ไลน์ (฿17,408), and ลุฟท์ฮันซ่า (฿17,408).

In terms of precipitation, rainfall in London 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 London when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, 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).

What are the most popular routes from Ko Samui to London?

When deciding which route to take from Ko Samui to London, consider Ko Samui - London Heathrow, Ko Samui - London City or Ko Samui - London Gatwick, as they are the most popular.

What is the cheapest time of day to fly from USM to LON?

When flying from Ko Samui to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly from for flights from Ko Samui to London?

For a flight from Ko Samui to London, you will be flying from Ko Samui. Ko Samui (USM) is just 3.3 km from the centre of the city. Ko Samui is the only Ko Samui airport and it handles 0 outbound flights to London per day. 0 airlines have flights to London from Ko Samui on a regular basis.

Can I find deals for flights from Ko Samui to London that include hotel bookings?

Yes. In addition to deals on Ko Samui to London flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Ko Samui to London?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ko Samui to London.

Can I find deals for business class flights from Ko Samui to London?

Yes. Cheapflights offers flight deals from Ko Samui to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

฿10,347+ Cheap Flights from Ko Samui to London

Cheap flight deals from Ko Samui to London

Round-trip from	฿32,083
One-way from	฿10,347
Popular in	January
Cheapest in	June
Average price	฿38,005

สวิส อินเตอร์เนชั่นแนล แอร์ไลน์
17/11-24/11
4 total stops
39h 50m total
Ko Samui to London

Search Deals

11/12
3 total stops
46h 40m total
Ko Samui to London

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (฿201,167 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease (฿89,399 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2025

Search Deals

Find flight deals from Ko Samui to London

Enter your travel dates to find the best prices.

Cheapest flights from Ko Samui to London
Explore the most affordable flight options available from Ko Samui to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 November 2025.

Mon 17/1108:15USM - LHR

2 stops20h 25mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์

Mon 24/1118:40LHR - USM

2 stops19h 25mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์

Deal found 2/11฿32,083

Mon 17/1113:25USM - LCY

2 stops26h 50mMultiple Airlines

Mon 24/1119:10LCY - USM

2 stops18h 55mMultiple Airlines

Deal found 2/11฿32,603

Mon 17/1113:25USM - LGW

2 stops30h 10mQatar Airways

Mon 24/1109:00LGW - USM

2 stops26h 15mQatar Airways

Deal found 2/11฿34,783

Mon 17/1111:40USM - LHR

1 stop34h 20mCathay Pacific

Mon 24/1116:50LHR - USM

1 stop19h 45mCathay Pacific

Deal found 2/11฿37,516

Mon 17/1119:45USM - LGW

1 stop17h 40mSingapore Airlines

Mon 24/1109:25LGW - USM

1 stop18h 35mSingapore Airlines

Deal found 2/11฿38,005

Wed 31/1210:00USM - LHR

1 stop16h 35mMultiple Airlines

Wed 31/1222:05LHR - USM

2 stops26h 30mMultiple Airlines

Deal found 3/11฿62,636

Best flights from Ko Samui to London
Discover carefully curated flight deals from Ko Samui to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 November 2025.

Mon 17/1113:25USM - LGW

2 stops30h 10mQatar Airways

Mon 24/1109:00LGW - USM

2 stops26h 15mQatar Airways

Deal found 2/11฿34,783

Mon 17/1119:45USM - LGW

1 stop17h 40mSingapore Airlines

Mon 24/1109:25LGW - USM

1 stop18h 35mSingapore Airlines

Deal found 2/11฿38,005

Fri 19/1217:40USM - LHR

2 stops24h 50mMultiple Airlines

Fri 26/1213:00LHR - USM

2 stops35h 45mMultiple Airlines

Deal found 4/11฿45,065

Fri 19/1221:10USM - LHR

1 stop28h 55mEVA Air

Fri 26/1221:20LHR - USM

1 stop27h 25mEVA Air

Deal found 4/11฿57,332

Wed 31/1210:00USM - LHR

1 stop16h 35mMultiple Airlines

Wed 31/1222:05LHR - USM

2 stops26h 30mMultiple Airlines

Deal found 3/11฿62,636

Last-minute flights from Ko Samui to London
Discover last-minute flight deals from Ko Samui to London. Data last updated 4 November 2025 and is based on user searches.

Mon 17/1113:25USM - LGW

2 stops30h 10mQatar Airways

Mon 24/1109:00LGW - USM

2 stops26h 15mQatar Airways

Deal found 2/11฿34,783

Mon 17/1119:45USM - LGW

1 stop17h 40mSingapore Airlines

Mon 24/1109:25LGW - USM

1 stop18h 35mSingapore Airlines

Deal found 2/11฿38,005

Fri 19/1217:40USM - LHR

2 stops24h 50mMultiple Airlines

Fri 26/1213:00LHR - USM

2 stops35h 45mMultiple Airlines

Deal found 4/11฿45,065

Fri 19/1221:10USM - LHR

1 stop28h 55mEVA Air

Fri 26/1221:20LHR - USM

1 stop27h 25mEVA Air

Deal found 4/11฿57,332

Wed 31/1210:00USM - LHR

1 stop16h 35mMultiple Airlines

Wed 31/1222:05LHR - USM

2 stops26h 30mMultiple Airlines

Deal found 3/11฿62,636

One-way flights from Ko Samui to London
Search for one-way flight options from Ko Samui to London. Find affordable one-way fares based on user searches. Data last updated 4 November 2025.

Thu 11/1208:15USM - LGW

3 stops46h 40mMultiple Airlines

Deal found 2/11฿10,347

Thu 13/1118:15USM - LGW

3 stops36h 40mMultiple Airlines

Deal found 2/11฿10,900

Wed 12/1112:50USM - LGW

3 stops40h 15mMultiple Airlines

Deal found 3/11฿11,258

Thu 11/1219:00USM - LHR

3 stops29h 30mMultiple Airlines

Deal found 2/11฿11,584

Thu 13/1113:25USM - LHR

2 stops24h 15mเอทิฮัดแอร์เวย์

Deal found 3/11฿11,779

Wed 12/1120:45USM - LHR

2 stops43h 35mMultiple Airlines

Deal found 2/11฿12,267

Sat 15/1119:45USM - LHR

3 stops53h 10mMultiple Airlines

Deal found 3/11฿13,048

Thu 13/1119:00USM - LHR

3 stops52h 25mMultiple Airlines

Deal found 2/11฿13,145

Wed 17/1220:20USM - LHR

2 stops41h 20mเอทิฮัดแอร์เวย์

Deal found 2/11฿14,024

Sun 15/212:25USM - LHR

3 stops39h 50mMultiple Airlines

Deal found 4/11฿14,902

Wed 12/1109:35USM - LCY

2 stops30h 05mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์

Deal found 3/11฿17,343

Thu 13/1116:25USM - LCY

2 stops23h 20mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์

Deal found 4/11฿17,408

Fly from

Fly to

Route

Depart

Return

Price

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Mon 17/11

13:25-12:35

2 stops30h 10m

London Gatwick

Mon 24/11

09:00-18:15

2 stops26h 15m

฿34,783

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Mon 17/11

19:45-06:25

1 stop17h 40m

London Gatwick

Mon 24/11

09:25-11:00

1 stop18h 35m

฿38,005

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Fri 19/12

17:40-11:30

2 stops24h 50m

London Heathrow

Fri 26/12

13:00-07:45

2 stops35h 45m

฿45,065

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Fri 19/12

21:10-19:05

1 stop28h 55m

London Heathrow

Fri 26/12

21:20-07:45

1 stop27h 25m

฿57,332

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Wed 31/12

10:00-19:35

1 stop16h 35m

London Heathrow

Wed 31/12

22:05-07:35

2 stops26h 30m

฿62,636

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Thu 13/11

08:15-23:55

3 stops46h 40m

฿11,063

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Wed 12/11

12:50-22:05

3 stops40h 15m

฿11,258

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Thu 11/12

19:00-17:30

3 stops29h 30m

฿11,584

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Thu 13/11

13:25-06:40

2 stops24h 15m

฿11,779

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Sat 15/11

12:25-23:40

3 stops42h 15m

฿12,950

Flights are sorted by cheapest return flights first.

Deals found on 3/11

Showing 1-10 of 26 results

Best time to book a flight from Ko Samui to London

Have a flexible travel schedule? Discover the best time to fly to London 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 London

What’s the top stopover airport for flights from Ko Samui to London?

Singapore (SIN) – chosen by Cheapflights users on 75% of one-stop itineraries from Ko Samui to London on Cheapflights.

What’s the cheapest stopover airport for flights from Ko Samui to London?

Singapore (SIN) is the most affordable one-stop option, with an average return flight price of ฿41,899.

What’s the fastest stopover option from Ko Samui to London?

Flights via Bangkok (BKK) have the shortest average one-way travel time for one-stop routes: 16h 35m.

Which airport typically offers the quickest stopover for flights from Ko Samui to London?

Flights via Bangkok (BKK) offer the fastest connection on this route, with an average stopover time of 3h 20m.

Related info for your journey

What airport do you fly from for flights from Ko Samui to London?
For a flight from Ko Samui to London, you will be flying from Ko Samui. Ko Samui (USM) is just 3.3 km from the centre of the city. Ko Samui is the only Ko Samui airport and it handles 0 outbound flights to London per day. 0 airlines have flights to London from Ko Samui on a regular basis.
How long is the flight from Ko Samui to London?
A quick flight from Ko Samui to London can take about 17h 40m. Qatar Airways provides one of the quickest options available for as low as ฿38,005. The distance between Ko Samui and London is about 9878 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines to fly from Ko Samui to London one-way?
The cheapet airlines for a one-way flight from Ko Samui to London are เอทิฮัดแอร์เวย์ (฿11,779), สวิส อินเตอร์เนชั่นแนล แอร์ไลน์ (฿17,408), and ลุฟท์ฮันซ่า (฿17,408).
What are the most popular routes from Ko Samui to London?
When deciding which route to take from Ko Samui to London, 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 London that include hotel bookings?
Yes. In addition to deals on Ko Samui to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Ko Samui to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ko Samui to London.
Can I find deals for business class flights from Ko Samui to London?
Yes. Cheapflights offers flight deals from Ko Samui to London 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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Why should you use Cheapflights to find cheap flight tickets from Ko Samui to London?

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Can Cheapflights find flights from Ko Samui to London with no change fees?

Certainly. Search results for flights to London from Ko Samui shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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Cheap flights from Ko Samui to London from ฿10,347

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ko Samui to London

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ko Samui to London

Cheapest flights from Ko Samui to LondonExplore the most affordable flight options available from Ko Samui to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 November 2025.

Explore the most affordable flight options available from Ko Samui to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 November 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ko Samui to London that are best for you.

Best time to book a flight from Ko Samui to London

Have a flexible travel schedule? Discover the best time to fly to London from Ko Samui with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Ko Samui to London

What’s the top stopover airport for flights from Ko Samui to London?

Share of one-stop return flights from Ko Samui to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.

What’s the cheapest stopover airport for flights from Ko Samui to London?

Average return fare for one-stop flights from Ko Samui to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

What’s the fastest stopover option from Ko Samui to London?

Shortest average travel time for one-stop one-way flights from Ko Samui to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Which airport typically offers the quickest stopover for flights from Ko Samui to London?

Average stopover duration for one-stop one-way flights from Ko Samui to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Related info for your journey

Find useful and relevant information for your journey from Ko Samui to London. 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 London?

How long is the flight from Ko Samui to London?

What are the cheapest airlines to fly from Ko Samui to London one-way?

What are the most popular routes from Ko Samui to London?

Can I find deals for flights from Ko Samui to London that include hotel bookings?

How can I find direct flights from Ko Samui to London?

Can I find deals for business class flights from Ko Samui to London?

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

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

Can Cheapflights find flights from Ko Samui to London with no change fees?

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

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Cheapest flights from Ko Samui to London
Explore the most affordable flight options available from Ko Samui to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 November 2025.