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

According to our current data, Thai Airways (£907), SWISS (£1,298), and Singapore Airlines (£1,511) offers the cheapest pricing from Koh Samui to London. You may be able to fly from Koh Samui to London for 3% less than the average price by searching for these airlines.

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

£464 is the cheapest one-way deal found within the past few days, from EVA Air. You may also be able to find cheap deals on Emirates and Thai Airways, with prices starting from £466 and £485, respectively.

What is the cheapest month to book a flight from Koh Samui to London?

Currently, January is the cheapest month in which you can book a flight from Koh Samui to London (average of £112). Flying from Koh Samui to London in August is currently the most expensive (average of £163). 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.

What is the cheapest day to fly from Koh Samui to London?

Travellers seeking maximum savings on their Koh Samui to London flight should consider departing on Monday mornings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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.

What is the cheapest day to fly round-trip from Koh Samui to London?

Travelers have found that booking a Monday departure is the best way to save up to 25% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

What is the cheapest month to fly from Koh Samui to London?

The best pricing can be found in the month of October. Prices to London from Koh Samui average £942. You can even find prices in October for less than £942, as users have found deals to London from as low as £430. The month of January appears to be one of the more expensive times to travel to London from Koh Samui. Flying in the targeted month can save you up to 75%.

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

If you book a flight to London from Koh Samui, you will be flying from Ko Samui, which is the city’s only airport. Ko Samui (USM) is located 2.1 mi from the center of Koh Samui. There are 0 flights from Ko Samui to London per day from 0 different airlines.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Koh 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.

£464+ Flights from Koh Samui to London

Cheap flight deals from Koh Samui to London

Round-trip from	£888
One-way from	£464
Popular in	January
Cheapest in	October
Average price	£841

Gulf Air
15/6-15/6
3 total stops
49h 05m total
Koh Samui to London

Search Deals

EVA Air
6/6
1 total stop
16h 05m total
Koh Samui to London

Search Deals

Highest demand for flights based on searches. 20% potential increase in price (£187 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease (£52 potential savings vs. average return price).

Search Deals

Average for round-trip flights in February 2025

Search Deals

Find flight deals from Koh Samui to London

Cheapest flights from Koh Samui to London
Explore the most affordable flight options available from Koh Samui to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 February 2025.

Sun 15/608:45USM - LHR

1 stop16h 25mMultiple Airlines

Sun 15/622:05LHR - USM

2 stops32h 40mMultiple Airlines

Deal found 21/2£888

Sun 15/607:00USM - LHR

1 stop18h 10mThai Airways

Sun 15/621:25LHR - USM

1 stop32h 15mThai Airways

Deal found 21/2£907

Wed 16/419:25USM - LGW

2 stops32h 55mMultiple Airlines

Sun 20/412:35LGW - USM

2 stops25h 50mMultiple Airlines

Deal found 22/2£923

Wed 26/216:25USM - LHR

1 stop20h 50mQantas Airways

Tue 4/320:10LHR - USM

1 stop33h 55mQantas Airways

Deal found 21/2£1,216

Wed 16/409:15USM - LCY

2 stops29h 35mSWISS

Sun 20/419:20LCY - USM

2 stops19h 50mSWISS

Deal found 22/2£1,298

Wed 26/211:40USM - LCY

2 stops28h 45mMultiple Airlines

Tue 4/319:10LCY - USM

2 stops18h 55mMultiple Airlines

Deal found 21/2£1,309

Wed 16/419:25USM - LGW

1 stop17h 00mSingapore Airlines

Sun 20/410:15LGW - USM

1 stop26h 15mSingapore Airlines

Deal found 22/2£1,511

Best flights from Koh Samui to London
Discover carefully curated flight deals from Koh Samui to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 February 2025.

Sun 15/608:45USM - LHR

1 stop16h 25mMultiple Airlines

Sun 15/622:05LHR - USM

2 stops32h 40mMultiple Airlines

Deal found 21/2£888

Sun 15/607:00USM - LHR

1 stop18h 10mThai Airways

Sun 15/621:25LHR - USM

1 stop32h 15mThai Airways

Deal found 21/2£907

Wed 16/409:15USM - LCY

2 stops29h 35mSWISS

Sun 20/419:20LCY - USM

2 stops19h 50mSWISS

Deal found 22/2£1,298

Wed 16/419:25USM - LGW

1 stop17h 00mSingapore Airlines

Sun 20/410:15LGW - USM

1 stop26h 15mSingapore Airlines

Deal found 22/2£1,511

Wed 16/419:25USM - LGW

2 stops32h 55mMultiple Airlines

Sun 20/412:35LGW - USM

2 stops25h 50mMultiple Airlines

Deal found 22/2£923

Last-minute flights from Koh Samui to London
Discover last-minute flight deals from Koh Samui to London. Data last updated 22 February 2025 and is based on user searches.

Wed 26/219:25USM - LHR

3 stops29h 25mMultiple Airlines

Tue 4/317:40LHR - USM

3 stops31h 20mMultiple Airlines

Deal found 21/2£900

Wed 26/216:25USM - LHR

1 stop20h 50mQantas Airways

Tue 4/320:10LHR - USM

1 stop33h 55mQantas Airways

Deal found 21/2£1,216

Wed 26/221:05USM - LGW

2 stops40h 25mMultiple Airlines

Tue 4/310:30LGW - USM

2 stops23h 40mMultiple Airlines

Deal found 21/2£931

Wed 26/211:40USM - LCY

2 stops28h 45mMultiple Airlines

Tue 4/319:10LCY - USM

2 stops18h 55mMultiple Airlines

Deal found 21/2£1,309

One-way flights from Koh Samui to London
Search for one-way flight options from Koh Samui to London. Find affordable one-way fares based on user searches. Data last updated 22 February 2025.

Fri 6/609:15USM - LHR

1 stop16h 05mEVA Air

Deal found 21/2£464

Sat 21/608:45USM - LGW

2 stops28h 35mEmirates

Deal found 21/2£466

Fri 6/616:25USM - LGW

2 stops51h 00mMultiple Airlines

Deal found 21/2£467

Sat 21/610:05USM - LHR

1 stop15h 05mThai Airways

Deal found 21/2£485

Thu 6/308:15USM - LHR

1 stop29h 00mQantas Airways

Deal found 21/2£508

Fri 6/609:15USM - LCY

2 stops29h 30mSWISS

Deal found 21/2£519

Sat 26/408:20USM - LHR

2 stops29h 10mQatar Airways

Deal found 21/2£634

Fri 6/612:05USM - LGW

1 stop24h 20mSingapore Airlines

Deal found 21/2£761

Fri 18/421:30USM - LHR

1 stop27h 50mMultiple Airlines

Deal found 21/2£918

Find flights from Koh Samui to London within your budget

Fly from

Fly to

Route

Depart

Return

Price

Koh SamuiLondon

USM - LHR

USMLHR

Ko Samui

Sun 15/6

08:45-19:10

1 stop16h 25m

London Heathrow

Sun 15/6

22:05-12:45

2 stops32h 40m

£888

Koh SamuiLondon

USM - LHR

USMLHR

Ko Samui

Sun 15/6

07:00-19:10

1 stop18h 10m

London Heathrow

Sun 15/6

21:25-11:40

1 stop32h 15m

£907

Koh SamuiLondon

USM - LGW

USMLGW

Ko Samui

Wed 16/4

19:25-22:20

2 stops32h 55m

London Gatwick

Sun 20/4

12:35-20:25

2 stops25h 50m

£923

Koh SamuiLondon

USM - LCY

USMLCY

Ko Samui

Wed 16/4

09:15-08:50

2 stops29h 35m

London City

Sun 20/4

19:20-21:10

2 stops19h 50m

£1,298

Koh SamuiLondon

USM - LGW

USMLGW

Ko Samui

Wed 16/4

19:25-06:25

1 stop17h 00m

London Gatwick

Sun 20/4

10:15-18:30

1 stop26h 15m

£1,511

Koh SamuiLondon

USM - LHR

USMLHR

Ko Samui

Fri 6/6

09:15-19:20

1 stop16h 05m

£464

Koh SamuiLondon

USM - LGW

USMLGW

Ko Samui

Sat 21/6

08:45-07:20

2 stops28h 35m

£466

Koh SamuiLondon

USM - LGW

USMLGW

Ko Samui

Fri 6/6

16:25-13:25

2 stops51h 00m

£467

Koh SamuiLondon

USM - LHR

USMLHR

Ko Samui

Sat 21/6

10:05-19:10

1 stop15h 05m

£485

Koh SamuiLondon

USM - LHR

USMLHR

Ko Samui

Thu 6/3

08:15-06:15

1 stop29h 00m

£508

Flights are sorted by cheapest return flights first.

Deals found on 21/2

Showing 1-10 of 14 results

Best time to book a flight from Koh Samui to London

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

Travel insights for flights from Koh Samui to London

Get recent, data-driven insights about flights from Koh Samui to London including ideal travel times, pricing trends, and more.

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

When flying from Koh Samui to London, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 10% versus a flight in the afternoon.

Rainfall in London by month

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.

Temperature in London by month

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).

Reviews of airlines servicing London

EVA Air

8.4

Very Good

1,199 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

EVA Air

8.4

Very Good

1,199 reviews

EVA Air

8.4

Very Good

1,199 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Emirates

8.1

Very Good

3,276 reviews

EVA Air

8.4

Very Good

1,199 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Singapore Airlines

8.1

Very Good

1,297 reviews

EVA Air

8.4

Very Good

1,199 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Thai Airways

7.8

Good

317 reviews

EVA Air

8.4

Very Good

1,199 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

SWISS

7.5

Good

1,566 reviews

EVA Air

8.4

Very Good

1,199 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Related info for your journey

What airport do you fly from for flights from Koh Samui to London?
If you book a flight to London from Koh Samui, you will be flying from Ko Samui, which is the city’s only airport. Ko Samui (USM) is located 2.1 mi from the center of Koh Samui. There are 0 flights from Ko Samui to London per day from 0 different airlines.
What are the cheapest airlines flying from Koh Samui to London round-trip?
According to our current data, Thai Airways (£907), SWISS (£1,298), and Singapore Airlines (£1,511) offers the cheapest pricing from Koh Samui to London. You may be able to fly from Koh Samui to London for 3% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Koh Samui to London one-way?
£464 is the cheapest one-way deal found within the past few days, from EVA Air. You may also be able to find cheap deals on Emirates and Thai Airways, with prices starting from £466 and £485, respectively.
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.
Can I find deals for flights from Koh Samui to London that include hotel bookings?
Yes. In addition to deals on Koh Samui to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Koh Samui to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Koh Samui to London.
Can I find deals for business class flights from Koh Samui to London?
Yes. Cheapflights offers flight deals from Koh 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.
What is the cheapest month to book a flight from Koh Samui to London?
Currently, January is the cheapest month in which you can book a flight from Koh Samui to London (average of £112). Flying from Koh Samui to London in August is currently the most expensive (average of £163). 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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Croydon

Gatwick

Slough

Luton

Ilford

Hayes

Eastbourne

Wembley

Southend-on-Sea

Ipswich

Winchester

Maidstone

Crawley

Southall

Watford

Dartford

Stansted

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Koh 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 Koh Samui to London?

Cheapflights helps you find that perfect flight to London from Koh 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 Koh Samui to London with no change fees?

Yes! Cheapflights helps users easily find flights from Koh Samui to London with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Koh Samui today and book when prices fit your budget.

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Cheap flights from Koh Samui to London from £464

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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Koh Samui to London

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Koh Samui to London

Cheapest flights from Koh Samui to LondonExplore the most affordable flight options available from Koh Samui to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 February 2025.

Explore the most affordable flight options available from Koh Samui to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 February 2025.

Find flights from Koh Samui to London within your budget

Best time to book a flight from Koh Samui to London

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

Travel insights for flights from Koh Samui to London

Get recent, data-driven insights about flights from Koh Samui to London including ideal travel times, pricing trends, and more.

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

Find hourly flight availability from Koh Samui to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 February 2025.

Rainfall in London by month

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

Temperature in London by month

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

Reviews of airlines servicing London

Related info for your journey

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

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

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

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

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

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

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

What is the cheapest month to book a flight from Koh Samui to London?

Travelling to a place near Koh Samui?

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 Koh Samui to London

See prices for flight routes from nearby airports that may be better suited for you.

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 Koh Samui to London?

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

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

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

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Travel Smart

Cheapest flights from Koh Samui to London
Explore the most affordable flight options available from Koh Samui to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 February 2025.