AirHint found the following cheapest return flights from Madrid (MAD) to Athens (ATH) in September 2025 (see full year).

Return flights

16 Sep - 30 Sep	Wizz Air Malta
17 Sep - 01 Oct	Wizz Air Malta
25 Sep - 01 Oct	Wizz Air Malta
30 Sep - 08 Oct	Wizz Air Malta
16 Sep - 01 Oct	Wizz Air Malta
06 Sep - 16 Sep	Iberia
17 Sep - 24 Sep	Wizz Air Malta
24 Sep - 30 Sep	Wizz Air Malta
07 Sep - 13 Sep	Air Europa
04 Sep - 16 Sep	Air Europa
23 Sep - 01 Oct	Wizz Air Malta
16 Sep - 23 Sep	Wizz Air Malta
07 Sep - 23 Sep	Iberia
10 Sep - 16 Sep	Wizz Air Malta
18 Sep - 23 Sep	Wizz Air Malta
22 Sep - 01 Oct	Iberia
25 Sep - 06 Oct	Wizz Air Malta
30 Sep - 07 Oct	Wizz Air Malta
24 Sep - 03 Oct	Wizz Air Malta
27 Sep - 06 Oct	Wizz Air Malta

Also check the deals for one-way flights from Madrid to Athens in September.

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.

Book a cheap hotel in Athens

Cheap car rent in Athens

Cheapest return flights from Madrid to Athens in September from $141

Return flights