AirHint found the following cheapest return flights from Bangkok (DMK) to London (LHR) in October 2025 (see full year).

Return flights

02 Oct - 09 Oct	Nok Air
18 Oct - 28 Oct	AirAsia
04 Oct - 28 Oct	Thai AirAsia
25 Oct - 15 Nov	Thai AirAsia
09 Oct - 16 Oct	AirAsia
24 Oct - 29 Oct	Thai AirAsia
07 Oct - 14 Oct	Nok Air
08 Oct - 20 Oct	AirAsia
26 Oct - 02 Nov	Thai AirAsia
30 Oct - 07 Nov	Nok Air
01 Oct - 21 Oct	Thai AirAsia
20 Oct - 27 Oct	Nok Air
02 Oct - 10 Oct	Nok Air
25 Oct - 01 Nov	Thai AirAsia
31 Oct - 08 Nov	Nok Air
31 Oct - 09 Nov	Nok Air
18 Oct - 03 Nov	Batik Air Malaysia
25 Oct - 03 Nov	Thai AirAsia

Also check the deals for one-way flights from Bangkok to London in October.

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.

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Cheapest return flights from Bangkok to London in October from 665€

Return flights