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

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

Return flights

16 Apr - 19 Apr Allegiant Air direct
02 Apr - 16 Apr Allegiant Air direct
02 Apr - 19 Apr Allegiant Air direct
16 Apr - 30 Apr Allegiant Air direct
26 Apr - 17 May Allegiant Air direct
01 Apr - 08 Apr Southwest Airlines
26 Apr - 28 Apr Southwest Airlines
26 Apr - 29 Apr Southwest Airlines
16 Apr - 16 Apr Southwest Airlines

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

Powered by

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.

Book a cheap hotel in Knoxville

Cheap car rent in Knoxville

Feel free to contact us with any feedback or request another flight research.