Cheapest return flights from Knoxville to Jacksonville in January from $76

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

Return flights

25 Jan - 29 Jan Allegiant Air direct
11 Jan - 29 Jan Allegiant Air direct
11 Jan - 22 Jan Allegiant Air direct
25 Jan - 05 Feb Allegiant Air direct

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