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

Return flights

31 Dec - 20 Jan	United
26 Dec - 12 Jan	Delta
26 Dec - 11 Jan	Delta
29 Dec - 09 Jan	American Airlines
25 Dec - 04 Jan	American Airlines
22 Dec - 27 Dec	Delta
26 Dec - 02 Jan	American Airlines
19 Dec - 03 Jan	American Airlines

Also check the deals for one-way flights from Fort Lauderdale to Sydney 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 Sydney in December from $1340

Return flights