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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 September , October 2026

29 Sep - 20 Oct $ 351.00
DEN
Denver
Frontier Airlines
DIRECT
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
DIRECT
DEN
Denver
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29 Sep - 05 Oct $ 453.00
DEN
Denver
Frontier Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
1 STOPS
DEN
Denver
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30 Sep - 10 Oct $ 529.00
DEN
Denver
Frontier Airlines
DIRECT
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
DIRECT
DEN
Denver
Pick dates

Last minute flights from Denver to San Antonio

29 Sep - 01 Oct $ 458.00
DEN
Denver
Frontier Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
1 STOPS
DEN
Denver
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29 Sep - 30 Sep $ 561.00
DEN
Denver
Frontier Airlines
DIRECT
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
DIRECT
DEN
Denver
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29 Sep - 30 Sep $ 1,046.00
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

7:30 AM - 9:32 AM
Frontier Airlines
1 Stops
5h 50m
DEN - SAT
$ 225
Kiwi
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4:13 PM - 4:13 PM
Frontier Airlines
0 Stops
2h 12m
DEN - SAT
$ 279
Kiwi
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9:49 AM - 9:49 AM
United Airlines
0 Stops
2h 9m
DEN - SAT
$ 518
Kiwi
Pick dates

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.