Cheapest return flights from London to Porto in September from 152€

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

Return flights

21 Sep - 05 Oct Iberia
26 Sep - 30 Sep Vueling Airlines
05 Sep - 12 Sep Iberia
09 Sep - 23 Sep Iberia
03 Sep - 08 Sep Iberia
21 Sep - 22 Sep Vueling Airlines
14 Sep - 15 Sep Vueling Airlines
07 Sep - 22 Sep Iberia
18 Sep - 22 Sep Vueling Airlines
03 Sep - 06 Sep Iberia
02 Sep - 04 Sep Iberia
30 Sep - 03 Oct Iberia
16 Sep - 08 Oct Iberia
30 Sep - 01 Oct TAP

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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