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

Return flights

17 Sep - 28 Sep	Air Canada
24 Sep - 01 Oct	Air Canada
18 Sep - 01 Oct	Air Canada
11 Sep - 27 Sep	Air Canada
12 Sep - 27 Sep	Air Canada
20 Sep - 27 Sep	Air Canada
20 Sep - 28 Sep	Air Canada
28 Sep - 08 Oct	Air Canada
21 Sep - 28 Sep	Air Canada
12 Sep - 20 Sep	Air Canada
11 Sep - 19 Sep	Air Canada
01 Sep - 07 Sep	TAP

Also check the deals for one-way flights from Madrid to Nassau 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 Nassau in September from $544

Return flights