Cheapest return flights from Knoxville to St. Petersburg in April from $86

Best time to book flights for Knoxville (TYS) to St. Petersburg (PIE) flights at AirHint

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

Return flights

04 Apr - 24 Apr Allegiant Air direct
04 Apr - 25 Apr Allegiant Air direct
04 Apr - 10 Apr Allegiant Air direct
25 Apr - 25 Apr Allegiant Air direct
13 Apr - 25 Apr Allegiant Air direct
13 Apr - 24 Apr Allegiant Air direct
25 Apr - 27 Apr Allegiant Air direct
13 Apr - 27 Apr Allegiant Air direct
04 Apr - 06 Apr Allegiant Air direct

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

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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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