Cheapest return flights from Jacksonville to Knoxville in May from $78

Best time to book flights for Jacksonville (JAX) to Knoxville (TYS) flights at AirHint

AirHint found the following cheapest return flights from Jacksonville (JAX) to Knoxville (TYS) in May 2025 (see full year).

Return flights

30 May - 16 Jun Allegiant Air direct
30 May - 02 Jun Allegiant Air direct
30 May - 09 Jun Allegiant Air direct
30 May - 20 Jun Allegiant Air direct
19 May - 02 Jun Allegiant Air direct
19 May - 09 Jun Allegiant Air direct
26 May - 16 Jun Allegiant Air direct
26 May - 02 Jun Allegiant Air direct
26 May - 09 Jun Allegiant Air direct
16 May - 02 Jun Allegiant Air direct
16 May - 19 May Allegiant Air direct
11 May - 19 May Allegiant Air direct
11 May - 23 May Allegiant Air direct
20 May - 24 May American Airlines

Also check the deals for one-way flights from Jacksonville to Knoxville in May.

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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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