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

Flying on Austrian Airlines is currently your cheapest option to London, with prices starting at £823. Additional return tickets that might be worth considering are offered by EVA Air and SWISS, with the lowest prices starting at £854 and £855, respectively. You may be able to fly from Ko Samui to London for 11% less than the average price by searching for these airlines.

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 Emirates (£433), EVA Air (£447), and SWISS (£476).

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

Currently, January is the cheapest month in which you can book a flight from Ko Samui to London (average of £112). Flying from Ko Samui to London in August is currently the most expensive (average of £164). 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 Ko Samui to London?

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

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 City, Ko Samui - London Gatwick or Ko Samui - London Heathrow as they are the most popular.

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

Travelers have found that booking a Thursday departure is the best way to save up to 22% 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 Ko Samui to London?

The best pricing can be found in the month of October. Prices to London from Ko Samui average £930. You can even find prices in October for less than £930, as users have found deals to London from as low as £406. The month of January appears to be one of the more expensive times to travel to London from Ko Samui. Flying in the targeted month can save you up to 67%.

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

If you book a flight to London from Ko 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 Ko Samui. There are 0 flights from Ko Samui to London per day from 0 different airlines.

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.

£433+ Flights from Ko Samui to London - Compare & Save Big

Cheap flight deals from Ko Samui to London

Round-trip from	£705
One-way from	£433
Popular in	January
Cheapest in	October
Average price	£984

11/6-30/6
4 total stops
56h 55m total
Ko Samui to London

Search Deals

Emirates
6/6
2 total stops
33h 50m total
Ko Samui to London

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£149 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease (£47 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Find flight deals from Ko Samui to London

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 30 April 2025.

Wed 11/607:00USM - LGW

2 stops29h 40mMultiple Airlines

Mon 30/611:35LGW - USM

2 stops27h 15mMultiple Airlines

Deal found 29/4£705

Sun 8/607:00USM - LHR

1 stop18h 10mMultiple Airlines

Mon 30/622:00LHR - USM

3 stops40h 30mMultiple Airlines

Deal found 28/4£778

Mon 9/619:15USM - LHR

2 stops19h 05mAustrian Airlines

Tue 1/710:25LHR - USM

2 stops25h 20mAustrian Airlines

Deal found 29/4£823

Tue 10/607:00USM - LHR

1 stop18h 20mEVA Air

Wed 2/721:35LHR - USM

1 stop18h 00mEVA Air

Deal found 28/4£854

Wed 11/610:05USM - LHR

2 stops17h 40mSWISS

Wed 2/712:10LHR - USM

2 stops19h 35mSWISS

Deal found 28/4£855

Tue 10/616:25USM - LGW

2 stops20h 55mEmirates

Tue 1/714:30LGW - USM

2 stops24h 40mEmirates

Deal found 29/4£870

Sun 8/609:30USM - LCY

2 stops28h 05mSWISS

Wed 2/713:05LCY - USM

2 stops18h 40mSWISS

Deal found 28/4£873

Thu 12/613:30USM - LHR

2 stops25h 10mLufthansa

Wed 2/717:50LHR - USM

2 stops17h 15mLufthansa

Deal found 28/4£884

Fri 13/616:25USM - LHR

2 stops20h 40mEmirates

Tue 1/714:25LHR - USM

2 stops24h 45mEmirates

Deal found 29/4£914

Mon 23/614:30USM - LGW

2 stops22h 10mQatar Airways

Thu 24/709:00LGW - USM

2 stops19h 30mQatar Airways

Deal found 29/4£929

Tue 10/613:50USM - LGW

2 stops23h 05mGulf Air

Wed 2/711:25LGW - USM

2 stops24h 20mGulf Air

Deal found 28/4£949

Wed 11/613:30USM - LCY

2 stops24h 40mLufthansa

Mon 30/617:00LCY - USM

2 stops22h 10mLufthansa

Deal found 29/4£955

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 30 April 2025.

Wed 11/607:00USM - LGW

2 stops29h 40mMultiple Airlines

Mon 30/611:35LGW - USM

2 stops27h 15mMultiple Airlines

Deal found 29/4£705

Mon 9/619:15USM - LHR

2 stops19h 05mAustrian Airlines

Tue 1/710:25LHR - USM

2 stops25h 20mAustrian Airlines

Deal found 29/4£823

Tue 10/607:00USM - LHR

1 stop18h 20mEVA Air

Wed 2/721:35LHR - USM

1 stop18h 00mEVA Air

Deal found 28/4£854

Wed 11/610:05USM - LHR

2 stops17h 40mSWISS

Wed 2/712:10LHR - USM

2 stops19h 35mSWISS

Deal found 28/4£855

Tue 10/616:25USM - LGW

2 stops20h 55mEmirates

Tue 1/714:30LGW - USM

2 stops24h 40mEmirates

Deal found 29/4£870

Thu 12/613:30USM - LHR

2 stops25h 10mLufthansa

Tue 1/707:25LHR - USM

2 stops28h 20mLufthansa

Deal found 28/4£884

Mon 23/614:30USM - LGW

2 stops22h 10mQatar Airways

Thu 24/709:00LGW - USM

2 stops19h 30mQatar Airways

Deal found 29/4£929

Tue 10/613:50USM - LGW

2 stops23h 05mGulf Air

Wed 2/711:25LGW - USM

2 stops24h 20mGulf Air

Deal found 28/4£949

Thu 12/610:55USM - LHR

1 stop34h 20mCathay Pacific

Tue 1/712:20LHR - USM

2 stops26h 10mCathay Pacific

Deal found 28/4£1,025

Fri 13/615:50USM - LHR

2 stops33h 20mOman Air

Thu 3/720:50LHR - USM

2 stops32h 15mOman Air

Deal found 28/4£1,093

Thu 26/613:30USM - LHR

1 stop23h 05mQantas Airways

Sun 27/720:50LHR - USM

1 stop18h 20mQantas Airways

Deal found 29/4£1,098

Tue 10/610:05USM - LHR

1 stop15h 05mThai Airways

Mon 30/612:30LHR - USM

1 stop14h 05mThai Airways

Deal found 28/4£1,248

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 30 April 2025.

Fri 6/608:45USM - LGW

2 stops33h 50mEmirates

Deal found 29/4£433

Fri 30/506:55USM - LGW

2 stops36h 30mMultiple Airlines

Deal found 29/4£436

Wed 3/919:15USM - LHR

1 stop29h 55mMultiple Airlines

Deal found 29/4£444

Sat 21/608:00USM - LHR

1 stop17h 20mEVA Air

Deal found 29/4£447

Wed 25/610:05USM - LCY

2 stops28h 45mSWISS

Deal found 29/4£476

Wed 3/919:30USM - LHR

2 stops23h 45mQatar Airways

Deal found 29/4£524

Mon 30/609:30USM - LHR

3 stops28h 45mSWISS

Deal found 29/4£603

Sat 21/617:40USM - LGW

1 stop18h 45mSingapore Airlines

Deal found 29/4£673

Tue 24/616:25USM - LCY

2 stops22h 50mKLM

Deal found 29/4£685

Tue 20/508:00USM - LCY

3 stops54h 10mMultiple Airlines

Deal found 30/4£746

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Wed 11/6

07:00-06:40

2 stops29h 40m

London Gatwick

Mon 30/6

11:35-20:50

2 stops27h 15m

£705

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Sun 8/6

07:00-19:10

1 stop18h 10m

London Heathrow

Mon 30/6

22:00-20:30

3 stops40h 30m

£778

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Mon 9/6

19:15-08:20

2 stops19h 05m

London Heathrow

Tue 1/7

10:25-17:45

2 stops25h 20m

£823

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Tue 10/6

07:00-19:20

1 stop18h 20m

London Heathrow

Wed 2/7

21:35-21:35

1 stop18h 00m

£854

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Wed 11/6

10:05-21:45

2 stops17h 40m

London Heathrow

Wed 2/7

12:10-13:45

2 stops19h 35m

£855

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Tue 10/6

16:25-07:20

2 stops20h 55m

London Gatwick

Tue 1/7

14:30-21:10

2 stops24h 40m

£870

Ko SamuiLondon

USM - LCY

USMLCY

Ko Samui

Sun 8/6

09:30-07:35

2 stops28h 05m

London City

Wed 2/7

13:05-13:45

2 stops18h 40m

£873

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Thu 12/6

13:30-08:40

2 stops25h 10m

London Heathrow

Tue 1/7

07:25-17:45

2 stops28h 20m

£884

Ko SamuiLondon

USM - LHR

USMLHR

Ko Samui

Fri 13/6

16:25-07:05

2 stops20h 40m

London Heathrow

Tue 1/7

14:25-21:10

2 stops24h 45m

£914

Ko SamuiLondon

USM - LGW

USMLGW

Ko Samui

Mon 23/6

14:30-06:40

2 stops22h 10m

London Gatwick

Thu 24/7

09:00-10:30

2 stops19h 30m

£929

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 32 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 is the cheapest time of day to fly from USM to LON?

When flying from Ko 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 11% versus a flight at midday.

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

Peruse reviews from past customers who have flown with EVA Air, Singapore Airlines and Emirates from Ko Samui to London to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

EVA Air

8.4

Very Good

1,186 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend

EVA Air

8.4

Very Good

1,186 reviews

EVA Air

8.4

Very Good

1,186 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend

Singapore Airlines

8.1

Very Good

1,292 reviews

EVA Air

8.4

Very Good

1,186 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend

Emirates

8.0

Very Good

3,215 reviews

EVA Air

8.4

Very Good

1,186 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend

KLM

7.8

Good

1,334 reviews

EVA Air

8.4

Very Good

1,186 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend

Related info for your journey

What airport do you fly from for flights from Ko Samui to London?
If you book a flight to London from Ko 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 Ko Samui. There are 0 flights from Ko Samui to London per day from 0 different airlines.
What are the cheapest airlines flying from Ko Samui to London round-trip?
Flying on Austrian Airlines is currently your cheapest option to London, with prices starting at £823. Additional return tickets that might be worth considering are offered by EVA Air and SWISS, with the lowest prices starting at £854 and £855, respectively. You may be able to fly from Ko Samui to London for 11% less than the average price by searching for these airlines.
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 Emirates (£433), EVA Air (£447), and SWISS (£476).
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 City, Ko Samui - London Gatwick or Ko Samui - London Heathrow 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.
What is the cheapest month to book a flight from Ko Samui to London?
Currently, January is the cheapest month in which you can book a flight from Ko Samui to London (average of £112). Flying from Ko Samui to London in August is currently the most expensive (average of £164). 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

Deal

Hounslow

Milton Keynes

Gatwick

Luton

Slough

Croydon

Eastbourne

Ilford

Hayes

Southend-on-Sea

Crawley

Wembley

Ipswich

Maidstone

Winchester

Folkestone

Dartford

Watford

Chichester

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

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?

Yes! Cheapflights helps users easily 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?

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

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Cheap flights from Ko Samui to London from £433

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 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 30 April 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 30 April 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 is the cheapest time of day to fly from USM to LON?

Find hourly flight availability from Ko 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 30 April 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

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 30 April 2025.

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?

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

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?

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

Travelling to a place near Ko Samui?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ko 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 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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Travel Smart

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 30 April 2025.