AirHint found the following cheapest return flights from Fort Lauderdale (FLL) to Istanbul (IST) in December 2025 (see full year).

Return flights

17 Dec - 10 Jan	Brussels Airlines
30 Dec - 13 Jan	Delta
09 Dec - 16 Dec	Delta
23 Dec - 30 Dec	Spirit Airlines
11 Dec - 18 Dec	Delta
05 Dec - 27 Dec	American Airlines
31 Dec - 07 Jan	Delta
30 Dec - 06 Jan	Delta
21 Dec - 28 Dec	Frontier Airlines
08 Dec - 22 Dec	LOT
01 Dec - 31 Dec	Delta
22 Dec - 22 Jan	Delta
02 Dec - 04 Jan	Delta
03 Dec - 04 Jan	Delta
12 Dec - 04 Jan	Delta
16 Dec - 30 Dec	Delta
16 Dec - 06 Jan	Delta
06 Dec - 27 Dec	jetBlue
04 Dec - 27 Dec	jetBlue
22 Dec - 06 Jan	Delta

Also check the deals for one-way flights from Fort Lauderdale to Istanbul in December.

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 Istanbul in December from $923

Return flights