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Cheap flights from Denver (DEN) to San Antonio (SAT)

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0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Denver (DEN) to San Antonio (SAT)

How to find the cheapest flight from Denver (DEN) to San Antonio (SAT)
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How to find the cheapest flight from Denver (DEN) to San Antonio (SAT)
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How to find the cheapest flight from Denver (DEN) to San Antonio (SAT)
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Cheap flights from Denver to San Antonio in December 2025 , January 2026

24 Dec - 06 Jan $ 122.00
DEN
Denver
Frontier Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
DIRECT
DEN
Denver
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31 Dec - 06 Jan $ 154.00
DEN
Denver
Frontier Airlines
DIRECT
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
DIRECT
DEN
Denver
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18 Dec - 05 Jan $ 280.00
DEN
Denver
Frontier Airlines
DIRECT
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
DIRECT
DEN
Denver
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Last minute flights from Denver to San Antonio

24 Dec - 31 Dec $ 224.00
DEN
Denver
Frontier Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
DIRECT
DEN
Denver
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30 Dec - 31 Dec $ 250.00
DEN
Denver
Frontier Airlines
DIRECT
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
DIRECT
DEN
Denver
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24 Dec - 31 Dec $ 673.00
DEN
Denver
United Airlines
DIRECT
SAT
San Antonio
SAT
San Antonio
United Airlines
DIRECT
DEN
Denver
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One-way flights to San Antonio from Denver

10:29 PM - 6:15 AM
Frontier Airlines
1 Stops
9h 54m
DEN - SAT
$ 92
Kiwi
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10:00 AM - 10:00 AM
Frontier Airlines
0 Stops
2h 14m
DEN - SAT
$ 125
Kiwi
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1:45 PM - 1:45 PM
United Airlines
0 Stops
2h 12m
DEN - SAT
$ 411
Kiwi
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How to find the cheapest flight from Denver (DEN) to San Antonio (SAT)

Related info for your journey
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How to find the cheapest flight from Denver (DEN) 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 Denver (DEN) to San Antonio (SAT)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.