Cheapest return flights from Knoxville to Jacksonville in September from 65€

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

Return flights

11 Sep - 21 Sep Allegiant Air direct
11 Sep - 25 Sep Allegiant Air direct
07 Sep - 21 Sep Allegiant Air direct
07 Sep - 25 Sep Allegiant Air direct
18 Sep - 21 Sep Allegiant Air direct
18 Sep - 25 Sep Allegiant Air direct
21 Sep - 25 Sep Allegiant Air direct
11 Sep - 28 Sep Allegiant Air direct
18 Sep - 28 Sep Allegiant Air direct
21 Sep - 28 Sep Allegiant Air direct
18 Sep - 02 Oct Allegiant Air direct
21 Sep - 02 Oct Allegiant Air direct
28 Sep - 02 Oct Allegiant Air direct
25 Sep - 02 Oct Allegiant Air direct
14 Sep - 02 Oct Allegiant Air direct

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

Skyscanner

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 Jacksonville

Cheap car rent in Jacksonville

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