Cheapest return flights from London to Porto in September from $180

AirHint found the following cheapest return flights from London (LHR) to Porto (OPO) in September 2026 (see full year).

Return flights

26 Sep - 15 Oct Vueling Airlines
26 Sep - 06 Oct Vueling Airlines
26 Sep - 07 Oct Vueling Airlines
26 Sep - 01 Oct Vueling Airlines
26 Sep - 14 Oct Vueling Airlines
01 Sep - 29 Sep Vueling Airlines
01 Sep - 05 Sep Iberia
18 Sep - 07 Oct Vueling Airlines
26 Sep - 08 Oct Vueling Airlines
18 Sep - 01 Oct Vueling Airlines
22 Sep - 06 Oct Vueling Airlines
22 Sep - 07 Oct Vueling Airlines
05 Sep - 17 Sep Iberia
20 Sep - 22 Sep Iberia
18 Sep - 22 Sep Vueling Airlines
18 Sep - 25 Sep Vueling Airlines
11 Sep - 16 Sep Vueling Airlines
02 Sep - 06 Sep Iberia
01 Sep - 16 Sep Vueling Airlines
22 Sep - 25 Sep Vueling Airlines

Also check the deals for one-way flights from London to Porto 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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