Cheapest return flights from Brussels to Porto in September from $99

Best time to book flights for Brussels (BRU) to Porto (OPO) flights at AirHint

AirHint found the following cheapest return flights from Brussels (BRU) to Porto (OPO) in September 2025 (see full year).

Return flights

21 Sep - 09 Oct Ryanair direct
28 Sep - 09 Oct Ryanair direct
28 Sep - 16 Oct Ryanair direct
29 Sep - 09 Oct Ryanair direct
29 Sep - 16 Oct Ryanair direct
30 Sep - 09 Oct Ryanair direct
30 Sep - 16 Oct Ryanair direct
22 Sep - 09 Oct Ryanair direct
21 Sep - 11 Oct Ryanair direct
28 Sep - 11 Oct Ryanair direct
21 Sep - 24 Sep Ryanair direct
14 Sep - 24 Sep Ryanair direct
12 Sep - 24 Sep Ryanair direct
05 Sep - 24 Sep Ryanair direct
22 Sep - 24 Sep Ryanair direct
21 Sep - 26 Sep Ryanair direct
21 Sep - 30 Sep Ryanair
28 Sep - 30 Sep Ryanair
29 Sep - 30 Sep Ryanair
30 Sep - 30 Sep Ryanair

Also check the deals for one-way flights from Brussels to Porto in September.

Skyscanner

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.

Book a cheap hotel in Porto

Cheap car rent in Porto