AirHint found the following cheapest return flights from Porto (OPO) to Brussels (BRU) in May 2026 (see full year).

Return flights

25 May - 05 Jun	Ryanair	direct
25 May - 28 May	Ryanair	direct
10 May - 12 May	Ryanair	direct
09 May - 12 May	Ryanair	direct
02 May - 12 May	Ryanair	direct
31 May - 05 Jun	Ryanair	direct
11 May - 12 May	Ryanair	direct
12 May - 12 May	Ryanair	direct
10 May - 28 May	Ryanair	direct
09 May - 28 May	Ryanair	direct
11 May - 28 May	Ryanair	direct
12 May - 28 May	Ryanair	direct

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

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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Cheapest return flights from Porto to Brussels in May from $252

Return flights