Cheapest return flights from Ko Samui to London in September from $1061

AirHint found the following cheapest return flights from Ko Samui (USM) to London (LHR) in September 2026 (see full year).

Return flights

18 Sep - 06 Oct Bangkok Airways
21 Sep - 08 Oct Bangkok Airways
22 Sep - 08 Oct Bangkok Airways
22 Sep - 12 Oct Bangkok Airways
22 Sep - 13 Oct Bangkok Airways
17 Sep - 08 Oct Qatar Airways
22 Sep - 09 Oct Bangkok Airways
19 Sep - 08 Oct Bangkok Airways
20 Sep - 08 Oct Qatar Airways
18 Sep - 08 Oct Qatar Airways

Also check the deals for one-way flights from Ko Samui to London in September.

Powered by

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in London

Cheap car rent in London

Feel free to contact us with any feedback or request another flight research.