Cheapest return flights from London to Lisbon in September from 231€

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

Return flights

28 Sep - 01 Oct KLM
21 Sep - 30 Sep Iberia
14 Sep - 16 Sep Iberia
17 Sep - 24 Sep KLM
18 Sep - 22 Sep Iberia
25 Sep - 28 Sep Luxair
01 Sep - 04 Sep Iberia
21 Sep - 25 Sep KLM
30 Sep - 04 Oct Iberia
14 Sep - 17 Sep Iberia
02 Sep - 09 Sep KLM
17 Sep - 22 Sep Iberia
26 Sep - 02 Oct KLM
30 Sep - 03 Oct KLM
26 Sep - 03 Oct KLM
26 Sep - 09 Oct KLM
26 Sep - 10 Oct KLM
24 Sep - 02 Oct KLM

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

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