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

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

Can I find flights from Koh Samui to London for under ฿39,100 on Cheapflights?

Yes, there are multiple flights from Koh Samui to London for under ฿39,100. The cheapest flight booked recently is on กาตาร์แอร์เวย์ for just ฿39,073, but on average you can expect to pay ฿42,344. Find deals

When is the cheapest time to fly from Koh Samui to London (USM - LON)?

It’s typically best to fly out from Koh Samui to London in the morning. Doing so could potentially save you 31% on the flight price compared to flying at midday, which is usually more expensive. Find deals

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

For a flight from Koh 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 Koh 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.

What does USM to LHR mean?

This is defined as Ko Samui Airport (USM) and London Heathrow Airport (LHR). Codes like London Heathrow Airport are often used to just call airports uniquely. London Gatwick Airport (LGW), London City Airport (LCY), London Stansted Airport (STN), London Luton Airport (LTN), London Southend Airport (SEN) are other airports near this flight route and their unique identifiers/IATA codes.

Cheap Flights from Koh Samui to London from ฿17,327

How to find the cheapest flight from Koh Samui (USM) to London (LON)

Round-trip from	฿1,018,547
One-way from	฿21,050

From Ko Samui to London (LON)

Search Deals

One-way flight from Ko Samui to London (LON)

Search Deals

USM - LON Price	฿29,274 - ฿49,741
LON Temperature	4 - 17 °C
LON Rainfall	40 - 70 mm

USM - LON

Price

฿29,274 - ฿49,741

LON

Temperature

4 - 17 °C

LON

Rainfall

40 - 70 mm

Cheap flights from Koh Samui to London in June, July 2023

Listed are some of the best fares we've found on flights departing from Koh Samui to London in 2023. For more flight deals, be sure to check back very soon.

9 Jul - 20 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

21h 40m

LHR

London Heathrow

USM

Ko Samui

3 stops

23h 15m

฿39,804

เอทิฮัดแอร์เวย์

Deal found 4/6

9 Jul - 17 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

21h 40m

LHR

London Heathrow

USM

Ko Samui

2 stops

19h 35m

฿40,326

เอทิฮัดแอร์เวย์

Deal found 4/6

6 Jul - 20 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

18h 30m

LHR

London Heathrow

USM

Ko Samui

2 stops

18h 05m

฿40,604

กาตาร์แอร์เวย์

Deal found 4/6

7 Jul - 20 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

18h 30m

LHR

London Heathrow

USM

Ko Samui

2 stops

17h 35m

฿41,126

กาตาร์แอร์เวย์

Deal found 4/6

7 Jul - 19 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

18h 05m

LHR

London Heathrow

USM

Ko Samui

2 stops

19h 15m

฿41,683

เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์

Deal found 4/6

11 Jul - 16 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

18h 55m

LHR

London Heathrow

USM

Ko Samui

2 stops

30h 30m

฿42,379

ออสเตรียนแอร์ไลน์

Deal found 4/6

11 Jul - 16 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

21h 40m

LHR

London Heathrow

USM

Ko Samui

3 stops

23h 15m

฿42,970

เอทิฮัดแอร์เวย์

Deal found 4/6

7 Jul - 21 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

21h 40m

LHR

London Heathrow

USM

Ko Samui

2 stops

20h 10m

฿43,492

เอทิฮัดแอร์เวย์

Deal found 4/6

8 Jul - 19 Sep

USM

Ko Samui

LHR

London Heathrow

1 stop

29h 40m

LHR

London Heathrow

USM

Ko Samui

1 stop

14h 40m

฿43,736

เอวาแอร์

Deal found 4/6

Koh Samui to London 2023 flight deals

Listed are some of the best fares we've found on flights departing from Koh Samui to London in 2023. For more flight deals, be sure to check back very soon.

9 Jul - 18 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

21h 40m

LHR

London Heathrow

USM

Ko Samui

2 stops

19h 35m

฿39,804

เอทิฮัดแอร์เวย์

Deal found 4/6

9 Jul - 17 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

21h 40m

LHR

London Heathrow

USM

Ko Samui

2 stops

19h 35m

฿40,326

เอทิฮัดแอร์เวย์

Deal found 4/6

6 Jul - 20 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

18h 30m

LHR

London Heathrow

USM

Ko Samui

2 stops

18h 05m

฿40,604

กาตาร์แอร์เวย์

Deal found 4/6

7 Jul - 20 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

18h 30m

LHR

London Heathrow

USM

Ko Samui

2 stops

17h 35m

฿41,126

กาตาร์แอร์เวย์

Deal found 4/6

7 Jul - 19 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

18h 05m

LHR

London Heathrow

USM

Ko Samui

2 stops

19h 15m

฿41,683

เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์

Deal found 4/6

11 Jul - 16 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

18h 55m

LHR

London Heathrow

USM

Ko Samui

2 stops

30h 30m

฿42,379

ออสเตรียนแอร์ไลน์

Deal found 4/6

11 Jul - 16 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

21h 40m

LHR

London Heathrow

USM

Ko Samui

3 stops

23h 15m

฿42,970

เอทิฮัดแอร์เวย์

Deal found 4/6

7 Jul - 18 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

21h 40m

LHR

London Heathrow

USM

Ko Samui

3 stops

23h 15m

฿43,492

เอทิฮัดแอร์เวย์

Deal found 4/6

8 Jul - 19 Sep

USM

Ko Samui

LHR

London Heathrow

1 stop

29h 40m

LHR

London Heathrow

USM

Ko Samui

1 stop

14h 40m

฿43,736

เอวาแอร์

Deal found 4/6

Cheap เอทิฮัดแอร์เวย์ flights from Koh Samui to London

Peruse some of the lowest-priced เอทิฮัดแอร์เวย์ flights we've found from Koh Samui to London. Come back soon if you're not finding the exact deal you're looking for.

9 Jul - 18 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

21h 40m

LHR

London Heathrow

USM

Ko Samui

2 stops

19h 35m

฿39,804

เอทิฮัดแอร์เวย์

Deal found 4/6

9 Jul - 17 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

21h 40m

LHR

London Heathrow

USM

Ko Samui

2 stops

19h 35m

฿40,326

เอทิฮัดแอร์เวย์

Deal found 4/6

11 Jul - 16 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

21h 40m

LHR

London Heathrow

USM

Ko Samui

3 stops

23h 15m

฿42,970

เอทิฮัดแอร์เวย์

Deal found 4/6

7 Jul - 18 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

21h 40m

LHR

London Heathrow

USM

Ko Samui

3 stops

23h 15m

฿43,492

เอทิฮัดแอร์เวย์

Deal found 4/6

7 Jul - 17 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

21h 40m

LHR

London Heathrow

USM

Ko Samui

2 stops

20h 50m

฿44,014

เอทิฮัดแอร์เวย์

Deal found 4/6

6 Jul - 16 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

18h 55m

LHR

London Heathrow

USM

Ko Samui

2 stops

20h 50m

฿47,354

เอทิฮัดแอร์เวย์

Deal found 4/6

8 Jul - 20 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

21h 25m

LHR

London Heathrow

USM

Ko Samui

3 stops

23h 15m

฿47,876

เอทิฮัดแอร์เวย์

Deal found 4/6

8 Jul - 17 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

21h 25m

LHR

London Heathrow

USM

Ko Samui

3 stops

23h 15m

฿48,363

เอทิฮัดแอร์เวย์

Deal found 4/6

Cheap เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์ flights from Koh Samui to London

Some of the best deals we've found on เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์ flights traveling from Koh Samui to London. Check back soon if you're not seeing flights that suit your needs.

7 Jul - 19 Sep

USM

Ko Samui

LHR

London Heathrow

2 stops

18h 05m

LHR

London Heathrow

USM

Ko Samui

2 stops

19h 15m

฿41,683

เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์

Deal found 4/6

7 Jul - 18 Sep

USM

Ko Samui

LCY

London City

2 stops

17h 25m

LCY

London City

USM

Ko Samui

2 stops

19h 15m

฿44,640

เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์

Deal found 4/6

7 Jul - 20 Sep

USM

Ko Samui

LCY

London City

2 stops

17h 25m

LCY

London City

USM

Ko Samui

2 stops

20h 20m

฿45,928

เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์

Deal found 4/6

7 Jul - 19 Sep

USM

Ko Samui

LCY

London City

2 stops

17h 25m

LCY

London City

USM

Ko Samui

2 stops

19h 15m

฿47,807

เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์

Deal found 4/6

8 Jul - 18 Sep

USM

Ko Samui

LCY

London City

2 stops

29h 05m

LCY

London City

USM

Ko Samui

2 stops

19h 15m

฿50,208

เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์

Deal found 4/6

8 Jul - 20 Sep

USM

Ko Samui

LCY

London City

2 stops

29h 05m

LCY

London City

USM

Ko Samui

2 stops

20h 20m

฿51,495

เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์

Deal found 4/6

8 Jul - 19 Sep

USM

Ko Samui

LCY

London City

2 stops

29h 05m

LCY

London City

USM

Ko Samui

2 stops

19h 15m

฿53,374

เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์

Deal found 4/6

One-way flights to London from Koh Samui

Users traveling one-way from Koh Samui to London can select one of these great deals. Users can also find round-trip Koh Samui to London flights by using the search form above.

18 Jun

USM

Ko Samui

LGW

London Gatwick

3 stops

56h 05m

฿17,327

Multiple Airlines

Deal found 4/6

18 Jun

USM

Ko Samui

LHR

London Heathrow

3 stops

39h 30m

฿18,406

Multiple Airlines

Deal found 4/6

18 Jun

USM

Ko Samui

LHR

London Heathrow

2 stops

40h 40m

฿19,032

Multiple Airlines

Deal found 4/6

30 Jun

USM

Ko Samui

LHR

London Heathrow

2 stops

25h 25m

฿19,171

เอทิฮัดแอร์เวย์

Deal found 5/6

9 Jul

USM

Ko Samui

LHR

London Heathrow

2 stops

21h 40m

฿19,867

เอทิฮัดแอร์เวย์

Deal found 4/6

10 Jul

USM

Ko Samui

LHR

London Heathrow

2 stops

24h 55m

฿19,972

Multiple Airlines

Deal found 4/6

8 Jul

USM

Ko Samui

LHR

London Heathrow

2 stops

21h 35m

฿20,285

Multiple Airlines

Deal found 4/6

6 Jul

USM

Ko Samui

LHR

London Heathrow

3 stops

23h 55m

฿20,563

Multiple Airlines

Deal found 3/6

11 Jul

USM

Ko Samui

LHR

London Heathrow

2 stops

24h 55m

฿20,633

Multiple Airlines

Deal found 4/6

Find flights from Koh Samui to London within your budget

Fly from

Fly to

Budget

฿39,073 - ฿54,452

Route

Depart

Return

Price

Ko SamuiLondon Gatwick

USM - LGW

USMLGW

Ko Samui

Thu 6/7

2 stops18h 50m

London Gatwick

Thu 21/9

2 stops19h 10m

฿39,073

Pick Dates

Ko SamuiLondon Gatwick

USM - LGW

USMLGW

Ko Samui

Sat 8/7

2 stops18h 50m

London Gatwick

Tue 19/9

2 stops19h 25m

฿39,213

Pick Dates

Ko SamuiLondon Heathrow

USM - LHR

USMLHR

Ko Samui

Sun 9/7

2 stops21h 40m

London Heathrow

Mon 18/9

2 stops19h 35m

฿39,804

Pick Dates

Ko SamuiLondon Heathrow

USM - LHR

USMLHR

Ko Samui

Fri 7/7

2 stops18h 05m

London Heathrow

Tue 19/9

2 stops19h 15m

฿41,683

Pick Dates

Ko SamuiLondon Heathrow

USM - LHR

USMLHR

Ko Samui

Tue 11/7

2 stops18h 55m

London Heathrow

Sat 16/9

2 stops30h 30m

฿42,379

Pick Dates

Ko SamuiLondon Heathrow

USM - LHR

USMLHR

Ko Samui

Sat 8/7

1 stop29h 40m

London Heathrow

Tue 19/9

1 stop14h 40m

฿43,736

Pick Dates

Ko SamuiLondon Heathrow

USM - LHR

USMLHR

Ko Samui

Sat 8/7

3 stops23h 55m

London Heathrow

Tue 19/9

2 stops19h 35m

฿44,327

Pick Dates

Ko SamuiLondon Heathrow

USM - LHR

USMLHR

Ko Samui

Mon 10/7

1 stop20h 10m

London Heathrow

Sun 17/9

1 stop18h 25m

฿48,224

Pick Dates

Ko SamuiLondon Heathrow

USM - LHR

USMLHR

Ko Samui

Thu 6/7

1 stop24h 45m

London Heathrow

Mon 18/9

1 stop18h 15m

฿54,452

Pick Dates

Flights are sorted by cheapest first

Deals found on 4/6

Related info for your journey

Currently priced at ฿39,073, กาตาร์แอร์เวย์ will fly you from Koh Samui to London and back. In addition to กาตาร์แอร์เวย์, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from เอทิฮัดแอร์เวย์ and เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์ - these airlines can fly you to your destination from ฿39,804 and ฿41,683, respectively.

Cheap flights from Koh Samui to London from ฿17,327

This is the cheapest one-way flight price, found on 4/6. Prices may vary by date and flight preferences.

How to find the cheapest flight from Koh Samui (USM) to London (LON)

All the information you need to plan the best USM to LON flight in 2023: compare Koh Samui to London flight prices with the expected peak season, weather and rainfall in London.

Round-trip from

One-way from

When is the cheapest time to fly from Koh Samui to London (USM - LON)?

Cheap flights from Koh Samui to London in June, July 2023

The best prices found for USM to LON flights in June, July

Listed are some of the best fares we've found on flights departing from Koh Samui to London in 2023. For more flight deals, be sure to check back very soon.

Koh Samui to London 2023 flight deals

Cheap flights to London from Koh Samui found for this year

Listed are some of the best fares we've found on flights departing from Koh Samui to London in 2023. For more flight deals, be sure to check back very soon.

Cheap เอทิฮัดแอร์เวย์ flights from Koh Samui to London

Peruse some of the lowest-priced เอทิฮัดแอร์เวย์ flights we've found from Koh Samui to London. Come back soon if you're not finding the exact deal you're looking for.

Cheap เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์ flights from Koh Samui to London

Some of the best deals we've found on เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์ flights traveling from Koh Samui to London. Check back soon if you're not seeing flights that suit your needs.

One-way flights to London from Koh Samui

The cheapest one-way flights from Koh Samui to London

Users traveling one-way from Koh Samui to London can select one of these great deals. Users can also find round-trip Koh Samui to London flights by using the search form above.

Find flights from Koh Samui to London within your budget

Use the slider to find flights from Koh Samui to London that fit your budget.

Related info for your journey

Useful info, stats and facts about Koh Samui to London flights.

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

Can I find flights from Koh Samui to London for under ฿39,100 on Cheapflights?

What are the cheapest airlines flying from Koh Samui to London round-trip?

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

What does USM to LHR mean?

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