AirHint found the following cheapest return flights from London (LCY) to Lisbon (LIS) in October 2026 (see full year).

Return flights

19 Oct - 23 Oct	SWISS
20 Oct - 27 Oct	SWISS
11 Oct - 20 Oct	SWISS
13 Oct - 20 Oct	SWISS
13 Oct - 03 Nov	SWISS
14 Oct - 21 Oct	SWISS
03 Oct - 10 Oct	KLM
22 Oct - 25 Oct	KLM
12 Oct - 22 Oct	KLM
05 Oct - 07 Oct	SWISS
16 Oct - 21 Oct	SWISS
28 Oct - 01 Nov	ITA Airways
29 Oct - 01 Nov	ITA Airways
30 Oct - 02 Nov	SWISS
29 Oct - 02 Nov	SWISS
26 Oct - 09 Nov	SWISS
27 Oct - 01 Nov	KLM

Also check the deals for one-way flights from London to Lisbon 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 Lisbon in October from $294

Return flights