How long is the flight from Ko Samui to London?

A quick flight from Ko Samui to London can take about 34h 10m. Emirates provides one of the quickest options available for as low as ฿39,116. The distance between Ko Samui and London is about 9831 km.

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 Gatwick, Ko Samui - London Heathrow or Ko Samui - London City, 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.

฿10,959+ Cheap Flights from Ko Samui to London

Cheap flight deals from Ko Samui to London

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 31 October 2026.

Tue 8/1207:55 -

1 stop20h 10m

Mon 11/114:25 -

2 stops45h 30m

Deal found 30/10฿25,965

Thu 5/1107:00 -

2 stops31h 45m

Wed 11/1108:45 -

2 stops27h 50m

Deal found 29/10฿28,292

Thu 5/1121:30 -

2 stops27h 30m

Wed 11/1112:30 -

2 stops24h 05m

Deal found 29/10฿29,910

Tue 8/1210:00 -

2 stops32h 30m

Mon 11/121:00 -

2 stops27h 35m

Deal found 30/10฿33,754

Thu 5/1115:05 -

2 stops34h 20m

Mon 9/1123:55 -

2 stops30h 55m

Deal found 28/10฿38,374

Thu 5/1118:15 -

2 stops26h 35m

Mon 9/1109:10 -

2 stops21h 40m

Deal found 28/10฿39,521

Thu 5/1115:50 -

2 stops21h 05m

Mon 9/1108:35 -

2 stops43h 05m

Deal found 29/10฿39,554

Thu 5/1115:50 -

2 stops27h 15m

Mon 9/1113:55 -

2 stops20h 35m

Deal found 26/10฿40,195

Thu 12/1114:05 -

2 stops23h 35m

Mon 16/1113:55 -

2 stops18h 25m

Deal found 30/10฿40,263

Thu 10/1207:55 -

1 stop20h 10m

Thu 17/1206:55 -

3 stops28h 30m

Deal found 26/10฿40,330

Sun 13/1213:45 -

3 stops33h 40m

Sun 20/1213:05 -

3 stops35h 40m

Deal found 29/10฿41,173

Tue 8/1221:10 -

2 stops21h 55m

Mon 11/120:15 -

2 stops31h 25m

Deal found 30/10฿41,713

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 31 October 2026.

Tue 8/1207:55 -

1 stop20h 10m

Mon 11/114:25 -

2 stops45h 30m

Deal found 30/10฿25,965

Mon 25/115:05 -

2 stops34h 10m

Thu 28/120:15 -

2 stops31h 25m

Deal found 27/10฿39,116

Thu 12/1114:05 -

2 stops23h 35m

Mon 16/1113:55 -

2 stops18h 25m

Deal found 30/10฿40,263

Mon 25/110:00 -

1 stop16h 35m

Thu 28/111:50 -

1 stop14h 30m

Deal found 27/10฿44,781

Wed 13/108:55 -

2 stops28h 45m

Wed 20/108:40 -

2 stops27h 15m

Deal found 28/10฿31,900

Mon 25/108:55 -

2 stops28h 45m

Thu 28/108:40 -

2 stops27h 15m

Deal found 27/10฿33,350

Tue 8/1210:00 -

2 stops32h 30m

Mon 11/121:00 -

2 stops27h 35m

Deal found 30/10฿33,754

Tue 8/1221:10 -

2 stops21h 55m

Mon 11/120:15 -

2 stops31h 25m

Deal found 30/10฿41,713

Sun 13/1219:10 -

2 stops26h 20m

Sun 20/1219:20 -

2 stops28h 50m

Deal found 29/10฿44,039

Wed 3/307:55 -

1 stop18h 40m

Wed 3/321:35 -

1 stop15h 15m

Deal found 26/10฿44,815

Wed 13/119:00 -

1 stop31h 35m

Wed 20/121:35 -

1 stop15h 50m

Deal found 28/10฿45,928

Sun 13/1215:05 -

2 stops34h 10m

Sun 20/1220:15 -

2 stops31h 25m

Deal found 29/10฿46,838

Thu 10/1207:55 -

1 stop20h 10m

Thu 17/1206:55 -

3 stops28h 30m

Deal found 26/10฿40,330

Sun 13/1213:45 -

3 stops33h 40m

Sun 20/1213:05 -

3 stops35h 40m

Deal found 29/10฿41,173

Sun 13/1217:00 -

2 stops24h 35m

Sun 20/1206:30 -

3 stops27h 30m

Deal found 29/10฿42,050

Thu 10/1215:05 -

2 stops34h 10m

Thu 17/1220:15 -

2 stops31h 25m

Deal found 26/10฿57,393

Wed 3/308:30 -

1 stop18h 05m

Wed 3/322:00 -

2 stops26h 35m

Deal found 26/10฿43,028

Thu 10/1215:05 -

2 stops22h 35m

Thu 17/1219:20 -

2 stops30h 05m

Deal found 26/10฿43,129

Mon 25/117:05 -

3 stops28h 55m

Thu 28/110:25 -

2 stops17h 15m

Deal found 27/10฿45,321

Sun 13/1215:35 -

2 stops21h 50m

Sun 20/1213:45 -

2 stops35h 25m

Deal found 29/10฿45,860

Fri 11/1217:40 -

2 stops19h 15m

Fri 18/1207:00 -

3 stops26h 15m

Deal found 27/10฿48,457

Sun 3/121:10 -

1 stop25h 25m

Sat 27/313:00 -

2 stops24h 50m

Deal found 28/10฿57,325

Fri 11/1220:30 -

2 stops22h 35m

Fri 18/1220:15 -

2 stops31h 25m

Deal found 27/10฿57,359

Sun 3/118:15 -

3 stops22h 50m

Sat 27/308:15 -

3 stops24h 30m

Deal found 28/10฿59,450

Find flight deals from Ko Samui to London

Round-trip from	฿25,965
One-way from	฿10,959

8/12-11/1
3 total stops
65h 40m total
Ko Samui to London

Search Deals

13/12-31/12
2 total stops
44h 45m total
Ko Samui to London

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Ko SamuiLondon

USM Ko Samui - STN London Stansted

USMSTN

Ko Samui

Sun 13/12

08:15-22:00

2 stops44h 45m

London Stansted

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿10,959

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Tue 17/11

08:50-18:10

2 stops40h 20m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿12,274

Ko SamuiLondon

USM Ko Samui - LGW London Gatwick

USMLGW

Ko Samui

Tue 17/11

12:00-14:10

3 stops33h 10m

London Gatwick

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿12,308

Ko SamuiLondon

USM Ko Samui - STN London Stansted

USMSTN

Ko Samui

Tue 17/11

08:50-21:50

3 stops44h 00m

London Stansted

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿12,544

Ko SamuiLondon

USM Ko Samui - LGW London Gatwick

USMLGW

Ko Samui

Wed 18/11

08:50-21:00

3 stops43h 10m

London Gatwick

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿12,612

Ko SamuiLondon

USM Ko Samui - LHR London Heathrow

USMLHR

Ko Samui

Wed 18/11

15:35-18:10

3 stops33h 35m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿13,691

Ko SamuiLondon

USM Ko Samui - STN London Stansted

USMSTN

Ko Samui

Wed 18/11

18:05-22:35

2 stops35h 30m

London Stansted

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿14,669

Ko SamuiLondon

USM Ko Samui - LGW London Gatwick

USMLGW

Ko Samui

Tue 16/2

12:00-09:10

3 stops52h 10m

London Gatwick

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿16,894

Ko SamuiLondon

USM Ko Samui - LGW London Gatwick

USMLGW

Ko Samui

Mon 22/3

15:05-07:45

2 stops23h 40m

London Gatwick

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿17,231

Ko SamuiLondon

USM Ko Samui - STN London Stansted

USMSTN

Ko Samui

Wed 31/3

19:45-20:10

2 stops30h 25m

London Stansted

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿17,805

Flights are sorted by cheapest return flights first.

Deals found on 29/10

Showing 1-10 of 48 resultsSorted by cheapest first

...

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.

USM-LON

USM-STN

USM-LGW

USM-LHR

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

USM-LON

USM-STN

USM-LGW

USM-LHR

No data available for this route at this time. Please check back soon.

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 34h 10m. Emirates provides one of the quickest options available for as low as ฿39,116. The distance between Ko Samui and London is about 9831 km.
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 Gatwick, Ko Samui - London Heathrow or Ko Samui - London City, 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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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ko Samui to London. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights helps you find that perfect flight to London from Ko Samui by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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.

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

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Cheap flights from Ko Samui to London from ฿10,959

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/12. 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

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 31 October 2026.

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 31 October 2026.

Best flights from Ko Samui to LondonDiscover 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 31 October 2026.

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 31 October 2026.

Last-minute flights from Ko Samui to LondonDiscover last-minute flight deals from Ko Samui to London. Data last updated 31 October 2026 and is based on user searches.

Discover last-minute flight deals from Ko Samui to London. Data last updated 31 October 2026 and is based on user searches.

One-way flights from Ko Samui to LondonSearch for one-way flight options from Ko Samui to London. Find affordable one-way fares based on user searches. Data last updated 31 October 2026.

Search for one-way flight options from Ko Samui to London. Find affordable one-way fares based on user searches. Data last updated 31 October 2026.

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Related info for your journey

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 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?

Travelling to a place near London?

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Alternative routes for Ko Samui to London

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Complete your trip

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Direct flights to England

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Search flights from Ko Samui to London by cabin class

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Other flights to London

Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 31 October 2026.

Ko Samui and London flights

Browse other Ko Samui and London flight options. Last updated on 31 October 2026.

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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 31 October 2026.

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 31 October 2026.

Last-minute flights from Ko Samui to London
Discover last-minute flight deals from Ko Samui to London. Data last updated 31 October 2026 and is based on user searches.

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 31 October 2026.