Cheapest return flights from Madrid to Porto in September from $63

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

Return flights

11 Sep - 14 Sep Iberia direct
19 Sep - 03 Oct Iberia direct
06 Sep - 14 Sep Air Europa direct
25 Sep - 27 Sep Iberia direct
03 Sep - 09 Sep Ryanair direct
03 Sep - 14 Sep Ryanair direct
24 Sep - 28 Sep Ryanair direct
24 Sep - 25 Sep Ryanair direct
16 Sep - 28 Sep Ryanair direct
16 Sep - 27 Sep Ryanair direct
16 Sep - 25 Sep Ryanair direct
24 Sep - 01 Oct Ryanair direct
24 Sep - 15 Oct Ryanair direct
16 Sep - 01 Oct Ryanair direct
19 Sep - 01 Oct Ryanair direct
15 Sep - 01 Oct Ryanair direct
14 Sep - 01 Oct Ryanair direct
24 Sep - 09 Oct Ryanair direct
19 Sep - 09 Oct Ryanair direct
20 Sep - 01 Oct Ryanair direct

Also check the deals for one-way flights from Madrid 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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