Cheapest return flights from Jacksonville to Knoxville in September from 65€
AirHint found the following cheapest return flights from Jacksonville (JAX) to Knoxville (TYS)
in September 2025 (see full year ).
Return flights
04 Sep
- 07 Sep
Allegiant Air
65 €
direct
25 Sep
- 28 Sep
Allegiant Air
65 €
direct
01 Sep
- 07 Sep
Allegiant Air
67 €
direct
04 Sep
- 11 Sep
Allegiant Air
67 €
direct
04 Sep
- 25 Sep
Allegiant Air
67 €
direct
01 Sep
- 11 Sep
Allegiant Air
69 €
direct
18 Sep
- 28 Sep
Allegiant Air
75 €
direct
18 Sep
- 25 Sep
Allegiant Air
77 €
direct
11 Sep
- 28 Sep
Allegiant Air
84 €
direct
11 Sep
- 25 Sep
Allegiant Air
86 €
direct
25 Sep
- 05 Oct
Allegiant Air
117 €
direct
28 Sep
- 05 Oct
Allegiant Air
120 €
direct
18 Sep
- 05 Oct
Allegiant Air
127 €
direct
Also check the deals for one-way flights from Jacksonville to Knoxville in September .
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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