Cheapest return flights from Jacksonville to Knoxville in January from $70

AirHint found the following cheapest return flights from Jacksonville (JAX) to Knoxville (TYS) in January 2026 (see full year).

Return flights

25 Jan - 01 Feb Allegiant Air direct
08 Jan - 25 Jan Allegiant Air direct
08 Jan - 11 Jan Allegiant Air direct
25 Jan - 08 Feb Allegiant Air direct
03 Jan - 11 Jan Allegiant Air direct
15 Jan - 18 Jan Allegiant Air direct
24 Jan - 01 Feb Frontier Airlines

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

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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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