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

Return flights

09 Apr - 11 Apr	Iberia	direct
02 Apr - 09 Apr	Air Serbia
02 Apr - 09 May	Air Serbia
23 Apr - 27 Apr	Iberia
21 Apr - 25 Apr	Iberia Express
01 Apr - 08 Apr	Air Serbia
24 Apr - 26 Apr	Lufthansa
22 Apr - 26 Apr	Lufthansa
02 Apr - 09 Apr	Iberia	direct
02 Apr - 09 May	Iberia	direct
10 Apr - 17 Apr	Iberia Express
03 Apr - 05 Apr	LOT

Also check the deals for one-way flights from Madrid to Zagreb in April.

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 April from $140

Return flights