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

Return flights

28 Oct - 14 Nov	Iberia
28 Oct - 14 Nov	TAP	direct
30 Oct - 19 Nov	British Airways	direct
28 Oct - 18 Nov	TAP	direct
28 Oct - 11 Nov	TAP	direct
28 Oct - 10 Nov	TAP	direct
30 Oct - 12 Nov	British Airways	direct
28 Oct - 07 Nov	Lufthansa
28 Oct - 09 Nov	TAP	direct
28 Oct - 06 Nov	TAP	direct
29 Oct - 30 Oct	Iberia
28 Oct - 30 Oct	Iberia
28 Oct - 31 Oct	Iberia
27 Oct - 28 Oct	Lufthansa
29 Oct - 29 Oct	SWISS
27 Oct - 29 Oct	Lufthansa
30 Oct - 30 Oct	TAP
29 Oct - 31 Oct	SWISS
28 Oct - 28 Oct	SWISS
25 Oct - 30 Oct	Iberia

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 182€

Return flights