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

Return flights

24 Sep - 29 Sep	Ryanair
27 Sep - 01 Oct	Ryanair
24 Sep - 27 Sep	Ryanair
26 Sep - 28 Sep	Ryanair
24 Sep - 25 Sep	Ryanair
30 Sep - 03 Oct	Air Europa
19 Sep - 22 Sep	Air Europa
22 Sep - 27 Sep	Air Europa
22 Sep - 24 Sep	Air Europa
24 Sep - 26 Sep	Ryanair
18 Sep - 22 Sep	Ryanair
18 Sep - 23 Sep	Ryanair

Also check the deals for one-way flights from Madrid to Bratislava 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.

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Cheapest return flights from Madrid to Bratislava in September from 158€

Return flights