Cheapest return flights from Knoxville to St. Petersburg in December from 111€

AirHint found the following cheapest return flights from Knoxville (TYS) to St. Petersburg (PIE) in December 2025 (see full year).

Return flights

31 Dec - 05 Jan Allegiant Air direct
31 Dec - 08 Jan Allegiant Air direct
21 Dec - 29 Dec Allegiant Air direct
20 Dec - 29 Dec Allegiant Air direct
31 Dec - 07 Jan Allegiant Air direct
21 Dec - 05 Jan Allegiant Air direct
21 Dec - 24 Dec Allegiant Air direct
20 Dec - 24 Dec Allegiant Air direct
21 Dec - 08 Jan Allegiant Air direct
20 Dec - 08 Jan Allegiant Air direct
31 Dec - 11 Jan Allegiant Air direct
31 Dec - 16 Jan Allegiant Air direct
31 Dec - 04 Jan Allegiant Air direct
31 Dec - 09 Jan Allegiant Air direct
31 Dec - 31 Dec Allegiant Air direct
21 Dec - 31 Dec Allegiant Air direct
20 Dec - 31 Dec Allegiant Air direct
21 Dec - 28 Dec Allegiant Air direct
20 Dec - 28 Dec Allegiant Air direct
19 Dec - 29 Dec Allegiant Air direct

Also check the deals for one-way flights from Knoxville to St. Petersburg in December.

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