Cheapest return flights from London to Lisbon in August from 233€

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

Return flights

18 Aug - 31 Aug KLM
25 Aug - 27 Aug SWISS
21 Aug - 26 Aug SWISS
25 Aug - 28 Aug SWISS
28 Aug - 04 Sep SWISS
17 Aug - 20 Aug KLM
05 Aug - 17 Aug SWISS
28 Aug - 31 Aug SWISS
17 Aug - 19 Aug SWISS
15 Aug - 31 Aug KLM
11 Aug - 14 Aug SWISS
29 Aug - 01 Sep KLM

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

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