Frontier AirlinesDepart20:20
Sat, Nov 14SAT → DEN
2h 29m · Direct
$188one way, per person
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- Cheapest fare
- $188
- Cheapest month
- November
- Direct flights
- Yes
- Flight time
- 2h 29m
Frontier Airlines · Sat, Nov 14
from $188
Frontier Airlines
1,290 km
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Cheapest month to fly from San Antonio to Denver
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in November 2026
The lowest fares we've seen for each day, cheapest first.
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About flights from San Antonio to Denver
San Antonio (SAT) and Denver (DEN) are about 1,290 km apart. Direct flights take around 2h 29m, and recent direct fares were with Frontier Airlines. Over the next few months, one-way fares start from $188, and November 2026 is currently the cheapest month to fly.
These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.
Frequently asked questions
How much is a flight from San Antonio to Denver?
The cheapest one-way fare we've seen recently is $188 with Frontier Airlines, departing Saturday, November 14, 2026.
What is the cheapest month to fly from San Antonio to Denver?
November 2026 currently has the lowest fares, from $188 one way.
Are there direct flights from San Antonio to Denver?
Yes. Recent direct fares were with Frontier Airlines.
How long is the flight from San Antonio to Denver?
A direct flight takes about 2h 29m. San Antonio and Denver are around 1,290 km apart.
Which airlines fly from San Antonio to Denver?
Recent fares on this route were with Frontier Airlines.
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