AirHint found the following cheapest return flights from London (LCY) to Lisbon (LIS) in October 2025 (see full year).

Return flights

28 Oct - 04 Nov	KLM
29 Oct - 04 Nov	KLM
14 Oct - 21 Oct	SWISS
27 Oct - 29 Oct	ITA Airways
30 Oct - 05 Nov	SWISS
29 Oct - 05 Nov	KLM
15 Oct - 19 Nov	SWISS
21 Oct - 29 Oct	SWISS
13 Oct - 16 Oct	KLM
30 Oct - 12 Nov	SWISS
30 Oct - 04 Nov	KLM
04 Oct - 09 Oct	KLM
08 Oct - 15 Oct	KLM
23 Oct - 06 Nov	KLM
31 Oct - 04 Nov	Luxair
31 Oct - 05 Nov	Luxair
07 Oct - 15 Oct	SWISS
23 Oct - 29 Oct	ITA Airways
21 Oct - 28 Oct	SWISS
07 Oct - 21 Oct	SWISS

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.

Book a cheap hotel in Lisbon

Cheap car rent in Lisbon

Cheapest return flights from London to Lisbon in October from 213€

Return flights