Cheapest return flights from Belfast to Porto in September from $81

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

Return flights

17 Sep - 20 Sep Ryanair direct
20 Sep - 24 Sep Ryanair direct
13 Sep - 20 Sep Ryanair direct
17 Sep - 24 Sep Ryanair direct
13 Sep - 24 Sep Ryanair direct
10 Sep - 20 Sep Ryanair direct
20 Sep - 27 Sep Ryanair direct
10 Sep - 22 Oct Ryanair direct
24 Sep - 27 Sep Ryanair direct
10 Sep - 24 Sep Ryanair direct
17 Sep - 17 Sep Ryanair
20 Sep - 04 Oct Ryanair direct
27 Sep - 04 Oct Ryanair direct
13 Sep - 01 Oct Ryanair
27 Sep - 01 Oct Ryanair
17 Sep - 01 Oct Ryanair
24 Sep - 04 Oct Ryanair direct
17 Sep - 04 Oct Ryanair direct
20 Sep - 08 Oct Ryanair direct
27 Sep - 08 Oct Ryanair direct

Also check the deals for one-way flights from Belfast 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.

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