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Cheap flights from Knoxville (TYS) to San Antonio (SAT)

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Knoxville (TYS) to San Antonio (SAT)

How to find the cheapest flight from Knoxville (TYS) to San Antonio (SAT)
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How to find the cheapest flight from Knoxville (TYS) to San Antonio (SAT)
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How to find the cheapest flight from Knoxville (TYS) to San Antonio (SAT)
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Cheap flights from Knoxville to San Antonio in March , April 2026

21 Mar - 13 Apr $ 342.00
TYS
Knoxville
Frontier Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
1 STOPS
TYS
Knoxville
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23 Mar - 13 Apr $ 343.00
TYS
Knoxville
Frontier Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
1 STOPS
TYS
Knoxville
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21 Mar - 16 Apr $ 351.00
TYS
Knoxville
Allegiant Air
1 STOPS
SAT
San Antonio
SAT
San Antonio
Allegiant Air
1 STOPS
TYS
Knoxville
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Last minute flights from Knoxville to San Antonio

24 Mar - 31 Mar $ 354.00
TYS
Knoxville
United Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
United Airlines
1 STOPS
TYS
Knoxville
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24 Mar - 31 Mar $ 354.00
TYS
Knoxville
United Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
United Airlines
1 STOPS
TYS
Knoxville
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24 Mar - 31 Mar $ 369.00
TYS
Knoxville
United Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
United Airlines
1 STOPS
TYS
Knoxville
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One-way flights to San Antonio from Knoxville

9:00 AM - 12:01 PM
United Airlines
1 Stops
5h 14m
TYS - SAT
$ 171
Kiwi
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4:55 PM - 9:50 PM
United Airlines
1 Stops
7h 2m
TYS - SAT
$ 218
Kiwi
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7:05 AM - 9:34 AM
United Airlines
1 Stops
4h 42m
TYS - SAT
$ 220
Kiwi
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How to find the cheapest flight from Knoxville (TYS) to San Antonio (SAT)

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