Earn point on your loyalty program!arrow arc left

Cheap flights from Knoxville (TYS) to Jacksonville (JAX)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Knoxville (TYS) to Jacksonville (JAX)

How to find the cheapest flight from Knoxville (TYS) to Jacksonville (JAX)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Knoxville (TYS) to Jacksonville (JAX)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Knoxville (TYS) to Jacksonville (JAX)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Knoxville to Jacksonville in March , April 2026

26 Mar - 12 Apr $ 76.00
TYS
Knoxville
Allegiant Air
DIRECT
JAX
Jacksonville
JAX
Jacksonville
Allegiant Air
DIRECT
TYS
Knoxville
Pick dates
05 Mar - 09 Apr $ 100.00
TYS
Knoxville
Allegiant Air
DIRECT
JAX
Jacksonville
JAX
Jacksonville
Allegiant Air
DIRECT
TYS
Knoxville
Pick dates
05 Mar - 02 Apr $ 100.00
TYS
Knoxville
Allegiant Air
DIRECT
JAX
Jacksonville
JAX
Jacksonville
Allegiant Air
DIRECT
TYS
Knoxville
Pick dates

Last minute flights from Knoxville to Jacksonville

26 Mar - 01 Apr $ 286.00
TYS
Knoxville
Allegiant Air
DIRECT
JAX
Jacksonville
JAX
Jacksonville
Allegiant Air
2 STOPS
TYS
Knoxville
Pick dates
29 Mar - 01 Apr $ 295.00
TYS
Knoxville
Allegiant Air
DIRECT
JAX
Jacksonville
JAX
Jacksonville
Allegiant Air
2 STOPS
TYS
Knoxville
Pick dates
12 Mar - 01 Apr $ 295.00
TYS
Knoxville
Allegiant Air
DIRECT
JAX
Jacksonville
JAX
Jacksonville
Allegiant Air
2 STOPS
TYS
Knoxville
Pick dates

One-way flights to Jacksonville from Knoxville

11:05 AM - 11:05 AM
Allegiant Air
0 Stops
1h 22m
TYS - JAX
$ 39
Kiwi
Pick dates
11:54 AM - 11:54 AM
Allegiant Air
0 Stops
1h 22m
TYS - JAX
$ 61
Kiwi
Pick dates
11:54 AM - 11:54 AM
Allegiant Air
0 Stops
1h 22m
TYS - JAX
$ 122
Kiwi
Pick dates

How to find the cheapest flight from Knoxville (TYS) to Jacksonville (JAX)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Knoxville (TYS) to Jacksonville (JAX)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Knoxville (TYS) to Jacksonville (JAX)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.