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

Return flights

15 Sep - 22 Sep	Delta
15 Sep - 23 Sep	Delta
30 Sep - 14 Oct	Delta
26 Sep - 11 Oct	Avianca
25 Sep - 11 Oct	Avianca
17 Sep - 21 Sep	Avianca
10 Sep - 16 Sep	Avianca
09 Sep - 16 Sep	Avianca
09 Sep - 20 Sep	Avianca
15 Sep - 18 Sep	Avianca
11 Sep - 18 Sep	Avianca
11 Sep - 03 Oct	Avianca
23 Sep - 01 Oct	Avianca
21 Sep - 30 Sep	Delta
07 Sep - 17 Sep	Delta

Also check the deals for one-way flights from Fort Lauderdale to Santiago 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 Santiago in September from $562

Return flights