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Cheap flights from London to Koh Samui from £300

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 30/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
LON — USM
23 Jun — 30 Jun1
1 adult
Sun 23/6
Sun 30/6

The best prices from London to Ko Samui are usually found in May or November, booked 13 days in advance, depart on a Monday or Wednesday and return on a Monday

Cheap flight deals from London to Koh Samui

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Koh Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 June 2024.

Popular in

December

Cheapest in

May

Round-trip from

£818

One-way from

£303
High demand for flights, 28% potential price rise
Search Deals
Best time to find cheap flights, 14% potential price drop
Search Deals
From London (LON) to Ko Samui
Search Deals
One-way flight from London (LON) to Ko Samui
Search Deals

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

Sunday is generally a great day to depart. Flying on this day could help you save up to 8%.

How far in advance should I book a flight from London to Koh Samui?

To save on the cost of your flight from London to Koh Samui, book at least 14 days before your planned departure. Booking around this time can save you about 2% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £769 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £1,011.

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

May can be a great time to fly to Koh Samui from London with a flight ticket averaging about £962. Cheapflights users have found deals in the month of May for as cheap as £712. The most expensive prices can be found in the month of December.

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

It’s optimal to fly from London to Koh Samui in the evening. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight in the morning.

Cheap EVA Air flights from London to Koh Samui

Explore cheap flight options specifically provided by EVA Air for the route between London and Koh Samui. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 976,051 searches. Data last updated 18 June 2024.
Check out some of the cheapest EVA Air flights we've come across from London to Koh Samui. It's recommended that users confirm their flight details before booking.
Tue 10/921:35LHR - USM
1 stop14h 55mEVA Air
Fri 20/909:15USM - LHR
1 stop16h 10mEVA Air
Deal found 17/6£818
Fri 6/921:35LHR - USM
1 stop17h 25mEVA Air
Sun 15/910:05USM - LHR
1 stop15h 20mEVA Air
Deal found 17/6£834
Fri 30/821:35LHR - USM
1 stop16h 55mEVA Air
Fri 13/908:45USM - LHR
1 stop16h 40mEVA Air
Deal found 17/6£841
Fri 30/821:35LHR - USM
1 stop14h 55mEVA Air
Fri 13/909:15USM - LHR
1 stop16h 10mEVA Air
Deal found 18/6£847
Fri 30/821:35LHR - USM
1 stop14h 55mEVA Air
Sun 8/921:30USM - LHR
1 stop27h 55mEVA Air
Deal found 17/6£848
Fri 30/821:35LHR - USM
1 stop17h 20mEVA Air
Fri 6/908:45USM - LHR
1 stop16h 40mEVA Air
Deal found 18/6£890
Thu 4/721:35LHR - USM
1 stop17h 25mEVA Air
Fri 26/708:00USM - LHR
1 stop17h 25mEVA Air
Deal found 17/6£990
Mon 1/721:35LHR - USM
1 stop14h 55mEVA Air
Mon 29/708:45USM - LHR
1 stop16h 40mEVA Air
Deal found 17/6£994
Tue 9/721:35LHR - USM
1 stop14h 55mEVA Air
Thu 25/708:45USM - LHR
1 stop16h 40mEVA Air
Deal found 17/6£1,068

Cheap Gulf Air flights from London to Koh Samui

Explore cheap flight options specifically provided by Gulf Air for the route between London and Koh Samui. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 976,051 searches. Data last updated 18 June 2024.
Have a look at some of the cheapest available Gulf Air flights departing from London and landing in Koh Samui. Check back soon if you're not seeing flights that suit your needs.
Mon 9/922:05LHR - USM
2 stops29h 15mGulf Air
Tue 24/909:15USM - LHR
3 stops27h 40mGulf Air
Deal found 17/6£796
Mon 9/922:05LHR - USM
2 stops28h 30mGulf Air
Tue 24/910:05USM - LHR
3 stops26h 50mGulf Air
Deal found 18/6£797
Sun 8/910:00LHR - USM
2 stops20h 45mGulf Air
Sat 14/911:45USM - LHR
3 stops25h 10mGulf Air
Deal found 17/6£877
Fri 30/810:00LHR - USM
3 stops46h 45mGulf Air
Fri 13/911:45USM - LHR
2 stops25h 10mGulf Air
Deal found 17/6£939
Fri 30/810:00LHR - USM
3 stops40h 35mGulf Air
Fri 13/909:15USM - LHR
2 stops27h 40mGulf Air
Deal found 18/6£940

Cheap London to Koh Samui flights in June & July 2024

Find cheap flight options from London to Koh Samui specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 976,051 searches. Prices were last updated on 18 June 2024.
Listed are some of the best fares we've found on flights departing from London to Koh Samui in 2024. Check back regularly for other flight deals.
Thu 20/618:25LGW - USM
2 stops21h 10mMultiple Airlines
Tue 25/618:55USM - LGW
2 stops26h 05mMultiple Airlines
Deal found 17/6£779
Mon 22/708:50LGW - USM
3 stops29h 35mMultiple Airlines
Tue 30/709:00USM - LGW
2 stops36h 00mMultiple Airlines
Deal found 17/6£871
Mon 8/711:35LGW - USM
2 stops23h 20mMultiple Airlines
Mon 22/715:25USM - LGW
2 stops30h 00mMultiple Airlines
Deal found 17/6£874
Tue 9/706:45LHR - USM
3 stops32h 10mMultiple Airlines
Mon 5/812:10USM - LHR
3 stops36h 30mMultiple Airlines
Deal found 16/6£895
Tue 9/711:35LGW - USM
2 stops27h 25mMultiple Airlines
Thu 25/715:40USM - LGW
2 stops29h 30mMultiple Airlines
Deal found 17/6£900
Mon 1/718:00LGW - USM
2 stops20h 55mMultiple Airlines
Mon 29/721:30USM - LGW
2 stops23h 55mMultiple Airlines
Deal found 17/6£902
Thu 20/621:10STN - USM
2 stops18h 25mMultiple Airlines
Tue 25/621:10USM - STN
2 stops21h 45mMultiple Airlines
Deal found 17/6£908
Thu 20/618:00LHR - USM
2 stops21h 15mMultiple Airlines
Tue 25/613:30USM - LHR
2 stops37h 20mMultiple Airlines
Deal found 17/6£909
Tue 9/711:35LGW - USM
2 stops23h 20mMultiple Airlines
Thu 25/719:00USM - LGW
2 stops26h 10mMultiple Airlines
Deal found 18/6£938

London to Koh Samui 2024 flight deals

Discover exclusive flight deals for travel between London and Koh Samui in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 976,051 searches. Data last updated 18 June 2024.
Listed are some of the best fares we've found on flights departing from London to Koh Samui in 2024. Check back regularly for other flight deals.
Wed 30/1020:55LHR - USM
2 stops16h 55mEtihad Airways
Tue 12/1121:25USM - LHR
2 stops21h 35mEtihad Airways
Deal found 17/6£760
Sun 20/1009:25LHR - USM
1 stop16h 40mSingapore Airlines
Tue 5/1109:00USM - LHR
1 stop37h 20mSingapore Airlines
Deal found 17/6£764
Fri 1/1109:00LHR - USM
2 stops28h 50mEtihad Airways
Sat 9/1115:05USM - LHR
2 stops46h 40mEtihad Airways
Deal found 17/6£770
Mon 7/1017:15LGW - USM
2 stops22h 00mTurkish Airlines
Tue 22/1016:25USM - LGW
2 stops23h 25mTurkish Airlines
Deal found 17/6£773
Mon 21/1021:20LHR - USM
2 stops31h 45mMultiple Airlines
Mon 4/1115:05USM - LHR
2 stops33h 25mMultiple Airlines
Deal found 17/6£775
Thu 20/618:25LGW - USM
2 stops21h 10mMultiple Airlines
Tue 25/618:55USM - LGW
2 stops26h 05mMultiple Airlines
Deal found 17/6£779
Mon 7/1008:15LHR - USM
3 stops26h 40mMultiple Airlines
Tue 22/1007:00USM - LHR
3 stops43h 00mMultiple Airlines
Deal found 17/6£780
Fri 22/1107:00LGW - USM
3 stops30h 45mMultiple Airlines
Sat 30/1109:00USM - LGW
2 stops28h 50mMultiple Airlines
Deal found 17/6£780
Fri 1/1120:55LHR - USM
2 stops16h 55mEtihad Airways
Tue 12/1121:25USM - LHR
2 stops21h 35mEtihad Airways
Deal found 17/6£780

One-way flights to Koh Samui from London

Search for one-way flight options from London to Koh Samui. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 976,051 searches. Data last updated 18 June 2024.
Users in need of a one-way flight from London to Koh Samui can choose from these deals. Users in need of a round-trip flight from London to Koh Samui instead should update the search form at the top of page.
Fri 30/808:35LTN - USM
3 stops47h 10mMultiple Airlines
Deal found 17/6£300
Fri 30/820:50LGW - USM
2 stops35h 55mMultiple Airlines
Deal found 17/6£303
Fri 30/808:35LTN - USM
3 stops48h 10mMultiple Airlines
Deal found 18/6£316
Fri 30/820:50LGW - USM
2 stops35h 55mMultiple Airlines
Deal found 18/6£335
Fri 30/822:00LGW - USM
3 stops27h 20mMultiple Airlines
Deal found 17/6£397
Wed 6/1106:20STN - USM
3 stops28h 10mMultiple Airlines
Deal found 17/6£411
Wed 17/707:15STN - USM
3 stops31h 45mMultiple Airlines
Deal found 17/6£412
Fri 30/822:00LGW - USM
3 stops27h 20mMultiple Airlines
Deal found 18/6£415
Wed 6/1107:00LGW - USM
3 stops30h 45mMultiple Airlines
Deal found 17/6£420

Find flights from London to Koh Samui within your budget

Customise your flight search to find flights from London to Koh Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 976,051 searches. Data last updated 18 June 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£781 - £1,094

Route

Depart

Return

Price

London HeathrowKo Samui

LHR - USM

LHRUSM

London Heathrow

Fri 6/9

2 stops16h 15m

Ko Samui

Sun 15/9

2 stops18h 45m

£781

London HeathrowKo Samui

LHR - USM

LHRUSM

London Heathrow

Fri 30/8

2 stops27h 30m

Ko Samui

Fri 13/9

2 stops21h 20m

£784

London HeathrowKo Samui

LHR - USM

LHRUSM

London Heathrow

Mon 9/9

1 stop29h 30m

Ko Samui

Tue 24/9

1 stop36h 40m

£788

London HeathrowKo Samui

LHR - USM

LHRUSM

London Heathrow

Mon 9/9

2 stops29h 15m

Ko Samui

Tue 24/9

3 stops27h 40m

£796

London HeathrowKo Samui

LHR - USM

LHRUSM

London Heathrow

Tue 10/9

1 stop14h 55m

Ko Samui

Fri 20/9

1 stop16h 10m

£818

London GatwickKo Samui

LGW - USM

LGWUSM

London Gatwick

Sun 8/9

2 stops19h 35m

Ko Samui

Sat 14/9

2 stops21h 50m

£832

London GatwickKo Samui

LGW - USM

LGWUSM

London Gatwick

Fri 30/8

2 stops19h 10m

Ko Samui

Fri 13/9

2 stops48h 25m

£895

London GatwickKo Samui

LGW - USM

LGWUSM

London Gatwick

Fri 30/8

2 stops19h 00m

Ko Samui

Fri 6/9

2 stops20h 50m

£1,065

London CityKo Samui

LCY - USM

LCYUSM

London City

Fri 30/8

2 stops20h 45m

Ko Samui

Fri 13/9

2 stops17h 00m

£1,094

Flights are sorted by cheapest first

Deals found on 17/6

How far ahead should I book a flight from London to Koh Samui?

Use this chart to determine the optimal time to book a return flight from London to Koh Samui. Price data was last updated on 14 June 2024.
To ensure you get the cheapest price possible for a flight from London to Koh Samui, you should look to book at least 13 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

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

Use this chart to determine the cheapest time to fly return from London to Koh Samui. Price data was last updated on 9 June 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their London to Koh Samui flight should consider departing on Thursday afternoons when fares are most often at their lowest. Saturday at midday flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from London to Koh Samui

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

Temperature and rainfall in Koh Samui by month

Plan your trip to Koh Samui by taking into account the average temperature and rainfall totals by month.

USM

Temperature

27 - 29 °C

If weather is an important factor for your trip to Koh Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 27.0 C).

Reviews of airlines servicing Koh Samui

Get insights into the airlines that provide service to Koh Samui. 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 Koh Samui. Reviews last updated 18 June 2024.
Read reviews from past customers who have flown EVA Air, Gulf Air and Austrian Airlines from London to Koh Samui. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,476 reviews
Check prices

Comfort

8.2

Entertainment

8.0

Food

7.9

Boarding

8.4

Crew

8.6

Overall

8.4

Reviews

1 / 10

I like Eva air. Kayak is my choice as well. Thanks for the good experience

EVA Air
8.4
Very Good
1,476 reviews
EVA Air
8.4
Very Good
1,476 reviews
Check prices

Comfort

8.2

Entertainment

8.0

Food

7.9

Boarding

8.4

Crew

8.6

Overall

8.4

Reviews

1 / 10

I like Eva air. Kayak is my choice as well. Thanks for the good experience

Singapore Airlines
8.3
Very Good
1,402 reviews
EVA Air
8.4
Very Good
1,476 reviews
Check prices

Comfort

8.2

Entertainment

8.0

Food

7.9

Boarding

8.4

Crew

8.6

Overall

8.4

Reviews

1 / 10

I like Eva air. Kayak is my choice as well. Thanks for the good experience

Emirates
8.1
Very Good
3,850 reviews
EVA Air
8.4
Very Good
1,476 reviews
Check prices

Comfort

8.2

Entertainment

8.0

Food

7.9

Boarding

8.4

Crew

8.6

Overall

8.4

Reviews

1 / 10

I like Eva air. Kayak is my choice as well. Thanks for the good experience

Thai Airways
8.0
Very Good
454 reviews
EVA Air
8.4
Very Good
1,476 reviews
Check prices

Comfort

8.2

Entertainment

8.0

Food

7.9

Boarding

8.4

Crew

8.6

Overall

8.4

Reviews

1 / 10

I like Eva air. Kayak is my choice as well. Thanks for the good experience

KLM
7.9
Good
1,442 reviews
EVA Air
8.4
Very Good
1,476 reviews
Check prices

Comfort

8.2

Entertainment

8.0

Food

7.9

Boarding

8.4

Crew

8.6

Overall

8.4

Reviews

1 / 10

I like Eva air. Kayak is my choice as well. Thanks for the good experience

Related info for your journey

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

    Most people fly into Ko Samui (USM) if they book a flight to Koh Samui from London. On average, Ko Samui has 0 inbound flights from London per day from 12 airlines. Ko Samui is conveniently located just 2.1 mi from Koh Samui’s city center.

  • Can I find flights from London to Koh Samui for under £800 on Cheapflights?

    Yes, there are multiple flights from London to Koh Samui for under £800. The cheapest flight booked recently is on Multiple Airlines for just £781, but on average you can expect to pay £830.

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

    Our cheapest airline available from London to Koh Samui is Etihad Airways. Our recent data shows that you can find tickets from as low as £784 on this airline. Additional options worth looking into are Singapore Airlines and Gulf Air, starting at £788 and £796 round-trip. Etihad Airways is priced at 18% lower than the current average price of a flight leaving 3 months from now.

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

    The most popular route from London to Koh Samui is London Heathrow - Ko Samui. You may also consider London Gatwick - Ko Samui or London Stansted - Ko Samui.

  • What does LHR to USM mean?

    LHR and USM are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. LHR to USM refers to a flight route from London Heathrow Airport to Ko Samui Airport. Ready for more IATA code knowledge? These are related airports for your current travel destination: London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN).

  • Can I find deals for flights from London to Koh Samui that include extra baggage allowance?

    The amount of baggage you can bring on your London to Koh Samui flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from London to Koh Samui with specific airlines?

    Yes, Cheapflights allows you to browse and filter London to Koh Samui flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

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

  • Can I find deals for flights from London to Koh Samui that allow pets onboard?

    Many airlines flying from London to Koh Samui offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from London to Koh Samui?

    Yes, you can often find last-minute deals on London to Koh Samui flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the London to Koh Samui flight deals updated?

    The London to Koh Samui flight deals you see on this page were last updated on 17/6.

  • What are the most popular airlines that fly from London to Koh Samui?

    The most popular airlines flying from London to Koh Samui are Air France, British Airways and EVA Air. Something to consider prior to booking your flight.

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

    Currently, May is the cheapest month in which you can book a flight from London to Koh Samui (average of £1,038). Flying from London to Koh Samui in December is currently the most expensive (average of £1,335). 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

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.

Fly from London to Koh Samui on these airlines
Choose from the following airlines for your flight from London to Koh Samui. Flights are based on user searches made on Cheapflights and were last updated on 18 June 2024.

EVA Air flights from London to Ko Samui
Thai Airways flights from London to Ko Samui
Etihad Airways flights from London to Ko Samui

Top 10 airlines flying from London to Koh Samui

Discover the top 10 airlines that operate flights from London to Koh Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 976,051 searches. Data last updated 18 June 2024.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest£106Average£187FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
Etihad AirwaysCheapest£665Average£743FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Air FranceCheapest£709Average£839FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£717Average£1,034FlexibilityNo cancel feeOn-time75%
Search KLM flights
Cathay PacificCheapest£730Average£836FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
EVA AirCheapest£751Average£1,015FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Singapore AirlinesCheapest£752Average£1,087FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
British AirwaysCheapest£765Average£1,099FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Qantas AirwaysCheapest£770Average£1,126FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Qatar AirwaysCheapest£844Average£1,086FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
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Search flights from London to Koh Samui by cabin class

Find flights from London to Koh Samui, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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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 London to Koh Samui?

When you search for this flight from London to Koh Samui, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from London to Koh Samui by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Need flexible booking options for your flight to Koh Samui from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Not ready to book yet? You can track prices for flights from London to Koh Samui on Cheapflights with our Price Alert feature and get notified when better prices are available.

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