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

Return flights

08 Sep - 26 Sep	Brussels Airlines
29 Sep - 10 Oct	Delta
10 Sep - 17 Sep	Brussels Airlines
23 Sep - 07 Oct	Delta
17 Sep - 25 Sep	Delta
21 Sep - 30 Sep	Delta
30 Sep - 14 Oct	Delta
10 Sep - 24 Sep	Delta
10 Sep - 25 Sep	Delta
07 Sep - 17 Sep	Delta
18 Sep - 25 Sep	Delta
18 Sep - 02 Oct	Delta
07 Sep - 14 Sep	Brussels Airlines
17 Sep - 28 Sep	Delta
25 Sep - 14 Oct	Delta
15 Sep - 06 Oct	Delta
20 Sep - 01 Oct	Delta
20 Sep - 19 Oct	Delta
18 Sep - 05 Oct	Delta
14 Sep - 07 Oct	jetBlue

Also check the deals for one-way flights from Fort Lauderdale to Madrid 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 Fort Lauderdale to Madrid in September from $367

Return flights