Cheapest return flights from Knoxville to St. Petersburg in December from 89€

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

Return flights

04 Dec - 12 Dec Allegiant Air direct
05 Dec - 12 Dec Allegiant Air direct
04 Dec - 22 Dec Allegiant Air direct
04 Dec - 21 Dec Allegiant Air direct
29 Dec - 04 Jan Allegiant Air direct
04 Dec - 19 Dec Allegiant Air direct
05 Dec - 22 Dec Allegiant Air direct
05 Dec - 21 Dec Allegiant Air direct
29 Dec - 12 Jan Allegiant Air direct
05 Dec - 19 Dec Allegiant Air direct
02 Dec - 12 Dec Allegiant Air direct
04 Dec - 18 Dec Allegiant Air direct
29 Dec - 14 Jan Allegiant Air direct
29 Dec - 11 Jan Allegiant Air direct
29 Dec - 10 Jan Allegiant Air direct
29 Dec - 15 Jan Allegiant Air direct
26 Dec - 04 Jan Allegiant Air direct
26 Dec - 12 Jan Allegiant Air direct
26 Dec - 14 Jan Allegiant Air direct
26 Dec - 11 Jan Allegiant Air direct

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

Powered by

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.

Book a cheap hotel in St. Petersburg

Cheap car rent in St. Petersburg

Feel free to contact us with any feedback or request another flight research.