Cheapest return flights from London to Lisbon in September from 223€

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

Return flights

21 Sep - 24 Sep KLM
09 Sep - 13 Sep KLM
04 Sep - 07 Sep KLM
19 Sep - 26 Sep KLM
01 Sep - 18 Sep SWISS
09 Sep - 12 Sep KLM
18 Sep - 23 Sep KLM
07 Sep - 15 Sep KLM
22 Sep - 26 Sep KLM
30 Sep - 05 Oct Luxair
23 Sep - 28 Sep KLM
25 Sep - 09 Oct KLM
30 Sep - 04 Oct KLM

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

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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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