- Cheapest roundtrip flight
- from€698
- Flight distance
- 9,907 km
- Time difference
Flight schedule from London Heathrow (LHR) to Koh Samui (USM)
Select a travel date in the flight schedule for the route from London Heathrow (LHR) to Koh Samui (USM) and compare affordable flight deals.
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Matching outbound flightsLHR–USM · 0 of 0
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durationstopovers
- 28 Sept – 4 Oct 2026
- 5 – 11 October 2026
- 12 – 18 October 2026
No flights could be found for this week (yet). Please use the search form.
No flights could be found for this week (yet). Please use the search form.
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 Heathrow 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 %
Important flight information
Frequently Asked Questions (FAQ)
Which airports near Koh Samui are frequently chosen as a destination?
If you want to travel to Koh Samui, Phuket may also be worth considering as destination airports. These airports are frequently checked by users as an alternative. When comparing, consider whether a cheaper flight is really worth a longer onward journey.