Cheapest return flights from Key West to St. Petersburg in December from $86

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

Return flights

01 Dec - 15 Dec Allegiant Air direct
01 Dec - 18 Dec Allegiant Air direct
26 Dec - 27 Dec Allegiant Air direct
07 Dec - 15 Dec Allegiant Air direct
07 Dec - 26 Dec Allegiant Air direct
07 Dec - 18 Dec Allegiant Air direct
07 Dec - 24 Dec Allegiant Air direct
07 Dec - 27 Dec Allegiant Air direct
01 Dec - 04 Dec Allegiant Air direct
22 Dec - 26 Dec Allegiant Air direct
29 Dec - 09 Jan Allegiant Air direct
26 Dec - 09 Jan Allegiant Air direct
22 Dec - 09 Jan Allegiant Air direct
23 Dec - 09 Jan Allegiant Air direct
29 Dec - 11 Jan Allegiant Air direct
26 Dec - 11 Jan Allegiant Air direct
22 Dec - 11 Jan Allegiant Air direct
23 Dec - 11 Jan Allegiant Air direct
29 Dec - 16 Jan Allegiant Air direct
26 Dec - 16 Jan Allegiant Air direct

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

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