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

Return flights

09 May - 23 May	Ryanair	direct
11 May - 23 May	Ryanair	direct
12 May - 23 May	Ryanair	direct
09 May - 26 May	Ryanair	direct
11 May - 26 May	Ryanair	direct
12 May - 26 May	Ryanair	direct
26 May - 26 May	Ryanair	direct
22 May - 26 May	Air Europa
13 May - 23 May	Air Europa
09 May - 29 May	Ryanair	direct
29 May - 02 Jun	Brussels Airlines	direct

Also check the deals for one-way flights from Brussels to Porto 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 Brussels to Porto in May from 143€

Return flights