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

Return flights

03 May - 12 May	Iberia	direct
07 May - 14 May	Iberia	direct
07 May - 16 May	Ryanair
27 May - 30 May	Iberia
09 May - 11 May	Ryanair
14 May - 17 May	Air Serbia
23 May - 25 May	Ryanair
14 May - 18 May	Air Serbia
07 May - 16 May	Iberia	direct
28 May - 31 May	Ryanair
28 May - 01 Jun	Iberia
30 May - 06 Jun	Wizz Air Malta
30 May - 06 Jun	Croatia Airlines	direct

Also check the deals for one-way flights from Madrid to Zagreb 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 Zagreb in May from $156

Return flights