FFL Helper
San Antonio SAT
$125
DEN → SAT · Frontier Airlines
FFL Helper / Denver / San Antonio
DEN → SAT
Denver (DEN) to San Antonio (SAT)
Compare one-way fares for flights from Denver to San Antonio.
Lowest fare
$125
Distance
802 mi
Flight time
24h 15m
Airports
DEN–SAT
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By month: December 2026 from $125
Price calendar
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Upcoming dates
About this route
This calendar shows dated one-way fares from Denver to San Antonio. Use it to see which days are cheaper before you search tickets.
Flight time and airport codes on this page are for the sample itinerary we have on file. Always confirm the live routing when you book Denver to San Antonio.