Cheapest return flights from Key West to St. Petersburg in October from $89

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

Return flights

17 Oct - 30 Oct Allegiant Air direct
17 Oct - 02 Nov Allegiant Air direct
10 Oct - 30 Oct Allegiant Air direct
10 Oct - 15 Oct Allegiant Air direct
17 Oct - 18 Oct Allegiant Air direct
11 Oct - 30 Oct Allegiant Air direct
11 Oct - 15 Oct Allegiant Air direct
10 Oct - 13 Oct Allegiant Air direct
17 Oct - 01 Nov Allegiant Air direct
11 Oct - 13 Oct Allegiant Air direct
20 Oct - 30 Oct Allegiant Air direct
20 Oct - 02 Nov Allegiant Air direct
10 Oct - 18 Oct Allegiant Air direct
11 Oct - 01 Nov Allegiant Air direct
20 Oct - 01 Nov Allegiant Air direct
19 Oct - 02 Nov Allegiant Air direct
19 Oct - 01 Nov Allegiant Air direct
13 Oct - 02 Nov Allegiant Air direct
13 Oct - 01 Nov Allegiant Air direct
12 Oct - 01 Nov Allegiant Air direct

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

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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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