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

Return flights

17 Oct - 21 Nov	AJet
10 Oct - 15 Oct	AJet
10 Oct - 19 Oct	AJet
09 Oct - 20 Oct	Wizz Air UK
28 Oct - 04 Nov	China Southern
07 Oct - 19 Oct	Wizz Air UK
07 Oct - 15 Oct	Pegasus Airlines
03 Oct - 13 Oct	AJet
03 Oct - 19 Oct	AJet
03 Oct - 15 Oct	AJet
08 Oct - 15 Oct	AJet
08 Oct - 12 Oct	AJet
03 Oct - 26 Nov	AJet
13 Oct - 26 Nov	Wizz Air UK
02 Oct - 19 Nov	AJet
28 Oct - 16 Nov	Wizz Air UK
31 Oct - 14 Nov	Wizz Air UK
28 Oct - 11 Nov	Wizz Air UK
13 Oct - 13 Nov	Wizz Air UK
31 Oct - 15 Nov	Wizz Air UK

Also check the deals for one-way flights from London to Bangkok 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 London to Bangkok in October from $601

Return flights