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

Return flights

13 Oct - 05 Nov	easyJet
13 Oct - 27 Oct	easyJet
15 Oct - 29 Oct	easyJet
06 Oct - 29 Oct	easyJet
13 Oct - 03 Nov	KLM
15 Oct - 27 Oct	easyJet
22 Oct - 06 Nov	Hainan Airlines
06 Oct - 03 Nov	Wizz Air UK
20 Oct - 03 Nov	Hainan Airlines
22 Oct - 05 Nov	Hainan Airlines
22 Oct - 27 Oct	Hainan Airlines
07 Oct - 27 Oct	Wizz Air Malta
02 Oct - 06 Nov	Wizz Air UK
20 Oct - 27 Oct	Hainan Airlines
24 Oct - 03 Nov	Hainan Airlines
03 Oct - 27 Oct	Wizz Air UK
24 Oct - 05 Nov	Hainan Airlines
15 Oct - 06 Nov	easyJet
24 Oct - 27 Oct	Hainan Airlines
15 Oct - 30 Oct	easyJet

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 392€

Return flights