Cheapest return flights from London to Lisbon in August from $287

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

Return flights

04 Aug - 06 Aug SWISS
27 Aug - 01 Sep SWISS
13 Aug - 20 Aug SWISS
27 Aug - 31 Aug SWISS
28 Aug - 31 Aug SWISS
21 Aug - 24 Aug SWISS
14 Aug - 17 Aug SWISS
04 Aug - 17 Aug SWISS
24 Aug - 08 Sep KLM
17 Aug - 08 Sep KLM
17 Aug - 21 Aug SWISS
22 Aug - 25 Aug SWISS
17 Aug - 30 Aug KLM

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

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