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

Return flights

01 Dec - 10 Dec	United
03 Dec - 10 Dec	American Airlines
04 Dec - 09 Dec	Delta
05 Dec - 10 Dec	Delta
11 Dec - 24 Dec	Delta
28 Dec - 17 Jan	Air Transat
14 Dec - 24 Dec	Delta
15 Dec - 10 Jan	KLM
28 Dec - 06 Jan	Frontier Airlines
17 Dec - 20 Dec	Delta
08 Dec - 03 Jan	Spirit Airlines
19 Dec - 10 Jan	Spirit Airlines
16 Dec - 28 Dec	Delta
15 Dec - 06 Jan	Delta
16 Dec - 30 Dec	Air Canada
10 Dec - 03 Jan	Spirit Airlines
09 Dec - 03 Jan	Spirit Airlines
13 Dec - 26 Dec	Delta
27 Dec - 03 Jan	Spirit Airlines
16 Dec - 03 Jan	Spirit Airlines

Also check the deals for one-way flights from Fort Lauderdale to Lisbon 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 Lisbon in December from 424€

Return flights