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

Return flights

20 May - 24 May	Iberia	direct
29 May - 30 May	Ryanair	direct
15 May - 30 May	Ryanair	direct
29 May - 06 Jun	Ryanair	direct
15 May - 18 May	Ryanair	direct
29 May - 07 Jun	Ryanair	direct
17 May - 30 May	Ryanair	direct
17 May - 06 Jun	Ryanair	direct
25 May - 30 May	Ryanair	direct
25 May - 06 Jun	Ryanair	direct
17 May - 18 May	Ryanair	direct
25 May - 07 Jun	Ryanair	direct
03 May - 11 May	Ryanair	direct
03 May - 13 May	Ryanair	direct
03 May - 18 May	Ryanair	direct

Also check the deals for one-way flights from Madrid 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 Madrid to Brussels in May from $140

Return flights