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

Return flights

24 Sep - 01 Oct	Delta
30 Sep - 07 Oct	Delta
23 Sep - 30 Sep	Delta
27 Sep - 08 Oct	Delta
21 Sep - 01 Oct	Delta
17 Sep - 24 Sep	Delta
22 Sep - 29 Sep	Delta
29 Sep - 06 Oct	Delta
26 Sep - 03 Oct	Delta
16 Sep - 23 Sep	Delta
25 Sep - 08 Oct	Delta
19 Sep - 30 Sep	Delta
19 Sep - 03 Oct	Delta
27 Sep - 04 Oct	Delta
26 Sep - 06 Oct	Delta
08 Sep - 15 Sep	Delta
18 Sep - 25 Sep	Delta
10 Sep - 29 Sep	Delta
11 Sep - 18 Sep	Delta
05 Sep - 09 Sep	Delta

Also check the deals for one-way flights from Fort Lauderdale to Lisbon 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 Lisbon in September from 402€

Return flights