Cheapest return flights from Porto to London in September from $164

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

Return flights

10 Sep - 15 Sep Ryanair direct
10 Sep - 26 Sep Ryanair direct
09 Sep - 15 Sep Ryanair direct
15 Sep - 05 Oct Ryanair direct
10 Sep - 13 Sep Ryanair direct
22 Sep - 11 Oct Ryanair direct
29 Sep - 11 Oct Ryanair direct
22 Sep - 12 Oct Ryanair direct
29 Sep - 12 Oct Ryanair direct
22 Sep - 05 Oct Ryanair direct
29 Sep - 05 Oct Ryanair direct
22 Sep - 07 Oct Ryanair direct
09 Sep - 26 Sep Ryanair direct
26 Sep - 11 Oct Ryanair direct
29 Sep - 07 Oct Ryanair direct
15 Sep - 15 Sep Ryanair direct
15 Sep - 26 Sep Ryanair direct
09 Sep - 13 Sep Ryanair direct
10 Sep - 25 Sep Ryanair direct
10 Sep - 18 Sep Ryanair direct

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