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

Return flights

30 Aug - 16 Sep	Ryanair
30 Aug - 15 Sep	Ryanair
28 Aug - 16 Sep	Ryanair
28 Aug - 15 Sep	Ryanair
31 Aug - 16 Sep	Ryanair
31 Aug - 15 Sep	Ryanair
30 Aug - 14 Sep	Ryanair
26 Aug - 15 Sep	Ryanair
28 Aug - 14 Sep	Ryanair
29 Aug - 16 Sep	Ryanair
28 Aug - 31 Aug	Ryanair
04 Aug - 05 Aug	easyJet	direct
27 Aug - 31 Aug	Ryanair
25 Aug - 31 Aug	Ryanair
03 Aug - 11 Aug	Vueling Airlines
05 Aug - 10 Aug	Vueling Airlines
04 Aug - 11 Aug	Wizz Air UK
12 Aug - 13 Aug	easyJet	direct
03 Aug - 17 Aug	Vueling Airlines
18 Aug - 19 Aug	easyJet	direct

Also check the deals for one-way flights from London to Lisbon in August.

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 August from 90€

Return flights