AirHint found the following cheapest return flights from Madrid (MAD) to Iasi (IAS) in December 2025 (see full year).

Return flights

06 Dec - 13 Dec	Wizz Air Malta	direct
30 Dec - 03 Jan	Wizz Air Malta	direct
06 Dec - 25 Dec	Wizz Air Malta	direct
06 Dec - 23 Dec	Wizz Air Malta	direct
30 Dec - 05 Jan	Wizz Air Malta
26 Dec - 01 Jan	Iberia
25 Dec - 01 Jan	Wizz Air Malta	direct
26 Dec - 03 Jan	Iberia
25 Dec - 03 Jan	Iberia
26 Dec - 04 Jan	Iberia
25 Dec - 03 Jan	Wizz Air Malta	direct
20 Dec - 04 Jan	Ryanair

Also check the deals for one-way flights from Madrid to Iasi in December.

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 Iasi in December from $170

Return flights