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

Return flights

19 Mar - 22 Mar	Ryanair	direct
19 Mar - 27 Mar	Ryanair
25 Mar - 27 Mar	Ryanair
19 Mar - 07 Apr	Ryanair	direct
19 Mar - 06 Apr	Ryanair	direct
25 Mar - 07 Apr	Ryanair	direct
25 Mar - 06 Apr	Ryanair	direct
19 Mar - 05 Apr	Ryanair	direct
19 Mar - 03 Apr	Ryanair	direct
25 Mar - 05 Apr	Ryanair	direct
25 Mar - 03 Apr	Ryanair	direct

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

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 March from $116

Return flights