Cheapest return flights from Knoxville to Fort Lauderdale in December from $78

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

Return flights

20 Dec - 05 Jan Allegiant Air direct
31 Dec - 14 Jan Allegiant Air direct
31 Dec - 05 Jan Allegiant Air direct
22 Dec - 05 Jan Allegiant Air direct
19 Dec - 05 Jan Allegiant Air direct
20 Dec - 21 Dec Allegiant Air direct
31 Dec - 15 Jan Allegiant Air direct
20 Dec - 23 Dec Allegiant Air direct
20 Dec - 24 Dec Allegiant Air direct
20 Dec - 04 Jan Allegiant Air direct
30 Dec - 14 Jan Allegiant Air direct
30 Dec - 05 Jan Allegiant Air direct
10 Dec - 18 Dec Allegiant Air direct
11 Dec - 21 Dec Allegiant Air direct
20 Dec - 31 Dec Allegiant Air direct
20 Dec - 22 Dec Allegiant Air direct
11 Dec - 18 Dec Allegiant Air direct
20 Dec - 28 Dec Allegiant Air direct
20 Dec - 06 Jan Allegiant Air direct
11 Dec - 20 Dec Allegiant Air direct

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

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