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Cheap flight deals from London to Koh Samui Starting at MYR 1,897

Discover our range of affordable one-way and round-trip flights from London to Koh Samui and kick-start your next adventure today!

  • One way
  • Round-trip
      • LHR21:50
        35h 30m
        1 stop
        USM16:20
        Fri, Mar 14|London - Koh Samui|Tianjin Airlines
        MYR 1,897MYR 3,458
        45% OFF
        45% OFF
        MYR 3,458MYR 1,897

        Choose Tianjin Airlines flights from London to Koh Samui. The one-way connecting flight with Tianjin Airlines departs from Heathrow Airport on Fri, Mar 14, arriving at Samui International Airport. One-way Prices start from MYR 1,897 including taxes and charges.

      • LHR21:50
        35h 30m
        1 stop
        USM16:20
        Fri, Mar 7|London - Koh Samui|Tianjin Airlines
        MYR 1,902MYR 3,458
        45% OFF
        45% OFF
        MYR 3,458MYR 1,902

        Choose Tianjin Airlines flights from London to Koh Samui. The one-way connecting flight with Tianjin Airlines departs from Heathrow Airport on Fri, Mar 7, arriving at Samui International Airport. One-way Prices start from MYR 1,902 including taxes and charges.

      • LHR21:50
        35h 30m
        1 stop
        USM16:20
        Fri, Mar 21|London - Koh Samui|Tianjin Airlines
        MYR 1,995MYR 3,458
        42% OFF
        42% OFF
        MYR 3,458MYR 1,995

        Choose Tianjin Airlines flights from London to Koh Samui. The one-way connecting flight with Tianjin Airlines departs from Heathrow Airport on Fri, Mar 21, arriving at Samui International Airport. One-way Prices start from MYR 1,995 including taxes and charges.

      • LHR21:50
        35h 30m
        1 stop
        USM16:20
        Fri, Feb 21|London - Koh Samui|Tianjin Airlines
        MYR 1,996
        MYR 1,996

        Choose Tianjin Airlines flights from London to Koh Samui. The one-way connecting flight with Tianjin Airlines departs from Heathrow Airport on Fri, Feb 21, arriving at Samui International Airport. One-way Prices start from MYR 1,996 including taxes and charges.

      • LHR21:50
        35h 30m
        1 stop
        USM16:20
        Fri, Feb 28|London - Koh Samui|Tianjin Airlines
        MYR 2,013
        MYR 2,013

        Choose Tianjin Airlines flights from London to Koh Samui. The one-way connecting flight with Tianjin Airlines departs from Heathrow Airport on Fri, Feb 28, arriving at Samui International Airport. One-way Prices start from MYR 2,013 including taxes and charges.

      • LHR09:25
        27h 5m
        1 stop
        USM18:30
        Tue, Apr 22|London - Koh Samui|Singapore Airlines
        MYR 2,394
        MYR 2,394

        Choose Singapore Airlines flights from London to Koh Samui. The one-way connecting flight with Singapore Airlines departs from Heathrow Airport on Tue, Apr 22, arriving at Samui International Airport. One-way Prices start from MYR 2,394 including taxes and charges.

      • LHR09:10
        26h 20m
        1 stop
        USM18:30
        Mon, Mar 17|London - Koh Samui|Singapore Airlines
        MYR 2,486
        MYR 2,486

        Choose Singapore Airlines flights from London to Koh Samui. The one-way connecting flight with Singapore Airlines departs from Heathrow Airport on Mon, Mar 17, arriving at Samui International Airport. One-way Prices start from MYR 2,486 including taxes and charges.

      • LHR09:25
        27h 5m
        1 stop
        USM18:30
        Sun, May 11|London - Koh Samui|Singapore Airlines
        MYR 2,500
        MYR 2,500

        Choose Singapore Airlines flights from London to Koh Samui. The one-way connecting flight with Singapore Airlines departs from Heathrow Airport on Sun, May 11, arriving at Samui International Airport. One-way Prices start from MYR 2,500 including taxes and charges.

      • LGW09:25
        26h 5m
        1 stop
        USM18:30
        Mon, Mar 10|London - Koh Samui|Singapore Airlines
        MYR 2,543
        MYR 2,543

        Choose Singapore Airlines flights from London to Koh Samui. The one-way connecting flight with Singapore Airlines departs from London Gatwick Airport on Mon, Mar 10, arriving at Samui International Airport. One-way Prices start from MYR 2,543 including taxes and charges.

      • LHR09:10
        26h 20m
        1 stop
        USM18:30
        Mon, Mar 24|London - Koh Samui|Singapore Airlines
        MYR 2,548
        MYR 2,548

        Choose Singapore Airlines flights from London to Koh Samui. The one-way connecting flight with Singapore Airlines departs from Heathrow Airport on Mon, Mar 24, arriving at Samui International Airport. One-way Prices start from MYR 2,548 including taxes and charges.

      • LON01:00 pm
        3h 5m
        Nonstop
        USM02:00 pm
        Fri, Feb 28|London - Koh Samui|Tianjin Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

London to Koh Samui flight time & flight schedules

Flight info.
Departure
Arrival
Weekly Schedule

  1. W96306

    Wizz Air UK

    06:05

    LGW

    2.0h

    09:05

    MXP

    S-T-T--
    Search

  2. TG941

    Thai Airways

    14:05

    MXP

    10.8h

    05:55

    BKK

    SMTWTFS

  3. PG121

    Bangkok Airways

    07:30

    BKK

    1.1h

    08:35

    USM

    SMTWTFS

  4. W95329

    Wizz Air UK

    06:10

    LTN

    4.1h

    13:15

    IST

    S-T-T--
    Search

  5. TG901

    Thai Airways

    16:30

    IST

    9.2h

    05:40

    BKK

    SMTWTFS

  6. PG125

    Bangkok Airways

    09:00

    BKK

    1.2h

    10:10

    USM

    SMTWTFS

  7. W95329

    Wizz Air UK

    06:10

    LTN

    4.1h

    13:15

    IST

    S-T-T--
    Search

  8. TG901

    Thai Airways

    16:30

    IST

    9.2h

    05:40

    BKK

    SMTWTFS

  9. TG5910

    Thai Airways

    09:00

    BKK

    1.2h

    10:10

    USM

    SMTWTFS

  10. U26357

    easyJet

    06:25

    LGW

    3.7h

    12:05

    ATH

    -MTWT--
    Search

  11. TR721

    Scoot

    09:35

    ATH

    11.3h

    01:50

    SIN

    SMTWTFS

  12. TR648

    Scoot

    17:35

    SIN

    1.9h

    18:30

    USM

    SMTWTFS

  13. W95771

    Wizz Air UK

    06:40

    LGW

    3.9h

    13:35

    IST

    SMTWTFS
    Search

  14. TG901

    Thai Airways

    16:30

    IST

    9.2h

    05:40

    BKK

    SMTWTFS

  15. TG5984

    Thai Airways

    10:25

    BKK

    1.6h

    12:00

    USM

    SMTWTFS

  16. W95771

    Wizz Air UK

    06:40

    LGW

    3.9h

    13:35

    IST

    SMTWTFS
    Search

  17. TG901

    Thai Airways

    16:30

    IST

    9.2h

    05:40

    BKK

    SMTWTFS

  18. PG125

    Bangkok Airways

    09:00

    BKK

    1.2h

    10:10

    USM

    SMTWTFS

  19. W95771

    Wizz Air UK

    06:40

    LGW

    3.9h

    13:35

    IST

    SMTWTFS
    Search

  20. TG901

    Thai Airways

    16:30

    IST

    9.2h

    05:40

    BKK

    SMTWTFS

  21. TG5910

    Thai Airways

    09:00

    BKK

    1.2h

    10:10

    USM

    SMTWTFS

  22. FR2757

    Ryanair

    07:30

    STN

    1.8h

    10:20

    MXP

    SMTWTFS
    Search

  23. TG941

    Thai Airways

    14:05

    MXP

    10.8h

    05:55

    BKK

    SMTWTFS

  24. TG5902

    Thai Airways

    07:30

    BKK

    1.1h

    08:35

    USM

    SMTWTFS

  25. U28303

    easyJet

    09:00

    LGW

    2.0h

    12:00

    MXP

    SMT-TFS
    Search

  26. TG941

    Thai Airways

    14:05

    MXP

    10.8h

    05:55

    BKK

    SMTWTFS

  27. TG5902

    Thai Airways

    07:30

    BKK

    1.1h

    08:35

    USM

    SMTWTFS

  28. SQ305

    Singapore Airlines

    09:10

    LHR

    12.8h

    06:00

    SIN

    SMTWTFS
    Search

  29. TR648

    Scoot

    17:35

    SIN

    1.9h

    18:30

    USM

    SMTWTFS
Find more flights and airlines

When is the cheapest time to fly from London to Koh Samui?

These price trend charts carefully monitor and predict how flight prices from London to Koh Samui will change. Keep a close eye on them to understand when the best time to buy your tickets is.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from London (LON) to Koh Samui (USM) the cheapest?

    Airlines adjust prices for flights from London to Koh Samui based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from London (LON) to Koh Samui (USM) cost?

    According to Trip.com's data, the lowest price is around MYR 5,337.

  • What is the transportation method from the main airport to downtown in Koh Samui?

    • The distance from Samui International Airport to downtown is about 3 km, by taxi about 20 minutes.

  • How many airports are there in Koh Samui (USM)?

    There are 1 airport(s) near Koh Samui (USM): Samui International Airport.

How to find a cheap flight from London to Koh Samui

If you don’t know some of the key things to look out for when buying flight tickets, prices can often end up sky high or, worse, sold out! We’ve carefully compiled our six most important steps to help ensure you’re getting the best deals when planning your next journey.
1
Being flexible with your dates to get the cheapest London to Koh Samui ticket.
Tap "Date" on flight search bar to scan through the calender for London to Koh Samui airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Fri, Mar 14 at MYR 1897 for one-way flights.
2
Compare cheap London to Koh Samui flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from London to Koh Samui. The cheapest airline operating is Tianjin Airlines.
3
Set up a Price Alert
By setting up a Price Alert for your London to Koh Samui route, you can easily track the price of your airline tickets from without manually checking every day.
4
Don't miss cheap London to Koh Samui flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights. If registering a free membership, you can receive more deals for your flights.
5
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
6
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com and search for cheap flight tickets from London to Koh Samui to get exclusive deals for you.

Flight Info | London to Koh Samui

Cheapest direct flight priceMYR 1,896
Off-season for travelMarch
Peak season for travelMay
Flight distance9,874.84 km
Popular airlineEVA Air

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