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

Return flights

13 May - 20 May	Iberia Express	direct
01 May - 03 May	Iberia	direct
01 May - 07 May	Ryanair	direct
13 May - 03 Jun	Ryanair	direct
01 May - 13 May	Ryanair	direct
13 May - 02 Jun	Ryanair	direct
05 May - 07 May	Ryanair	direct
05 May - 13 May	Ryanair	direct
03 May - 07 May	Ryanair	direct
01 May - 20 May	Ryanair	direct
03 May - 13 May	Ryanair	direct
13 May - 27 May	Ryanair	direct

Also check the deals for one-way flights from Madrid to Dublin 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 Dublin in May from $137

Return flights