Flight Routes from London to Koh Samui

Trip type

Our cheapest offers for flights from London to Koh Samui

Here you can compare cheap flights from London (LON) to Koh Samui (USM) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Koh Samui. Prices and availability may change at any time.

Flight schedule from London (LON) to Koh Samui (USM)

Select a travel date in the flight schedule for the route from London (LON) to Koh Samui (USM) and compare affordable flight deals.

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  1. 24 – 30 August 2026
  2. 31 Aug – 6 Sept 2026
  3. 7 – 13 September 2026
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        No flights could be found for this week (yet). Please use the search form.

        Tips and tricks to help you find cheap flights from London to Koh Samui

        Favourite airline: Etihad Airways
        61 % of bookings on this flight route are made with Etihad Airways, EVA Airways and Emirates.
        Etihad Airways
        29 %
        EVA Airways
        16 %
        Emirates
        16 %
        Favourite connection: via Abu Dhabi and Bangkok
        The most popular flights on this route are via Abu Dhabi and Bangkok and are booked by 36 % of all travellers.
        Route
        bookings
        2 stopovers Abu Dhabi Bangkok Suvarnabhumi
        27h 25min, from 918 £
        36 %
        1 stopover Bangkok Suvarnabhumi
        18h 00min, from 1 005 £
        26 %
        2 stopovers Dubai Bangkok Suvarnabhumi
        31h 25min, from 1 191 £
        14 %

        Important flight information

        Frequently Asked Questions (FAQ)

        Flight information: London - Koh Samui

        Outbound and return from 697,99 £
        Distance 9886 km
        Departure airport Airport London (LCY, LGW, LHR, LTN, STN, SEN) (LON)
        Arrival airport Airport Koh Samui (USM)
        Destination country Flights to Thailand
        Departure airport - Destination country London (LCY, LGW, LHR, LTN, STN, SEN) - Thailand
        Alternative routes to Thailand
        Alternative flights to Koh Samui
        Popular destinations for onward travel
        Flight destinations with a similar price