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

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

Return flights

08 Aug - 27 Aug Allegiant Air direct
21 Aug - 27 Aug Allegiant Air direct
15 Aug - 27 Aug Allegiant Air direct
07 Aug - 27 Aug Allegiant Air direct
08 Aug - 23 Aug Allegiant Air direct
08 Aug - 24 Aug Allegiant Air direct
08 Aug - 25 Aug Allegiant Air direct
29 Aug - 19 Sep Allegiant Air direct
08 Aug - 11 Aug Allegiant Air direct
29 Aug - 05 Sep Allegiant Air direct
27 Aug - 05 Sep Allegiant Air direct
21 Aug - 05 Sep Allegiant Air direct
28 Aug - 05 Sep Allegiant Air direct
15 Aug - 05 Sep Allegiant Air direct
08 Aug - 20 Aug Allegiant Air direct
08 Aug - 18 Aug Allegiant Air direct
20 Aug - 05 Sep Allegiant Air direct
29 Aug - 15 Sep Allegiant Air direct
29 Aug - 18 Sep Allegiant Air direct
29 Aug - 13 Sep Allegiant Air direct

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

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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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