Cheapest return flights from Belfast to Porto in September from 169€

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

Return flights

21 Sep - 25 Sep Ryanair
21 Sep - 25 Sep Ryanair direct
14 Sep - 18 Sep Ryanair
04 Sep - 08 Sep Ryanair
07 Sep - 11 Sep Ryanair
11 Sep - 15 Sep Ryanair
14 Sep - 18 Sep Ryanair direct
04 Sep - 18 Sep Ryanair direct
21 Sep - 02 Oct Ryanair direct
25 Sep - 28 Sep Ryanair
14 Sep - 25 Sep Ryanair direct
14 Sep - 02 Oct Ryanair direct
21 Sep - 12 Oct Ryanair direct
18 Sep - 02 Oct Ryanair direct
11 Sep - 02 Oct Ryanair direct
25 Sep - 02 Oct Ryanair direct
25 Sep - 12 Oct Ryanair direct

Also check the deals for one-way flights from Belfast 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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