Cheap Flights from Denver to San Antonio
No deal from Denver to San Antonio has cleared our price bar yet. What we have seen on the route is below.
Across 4 months of observations from Denver to San Antonio, the lowest round-trip fare we recorded was $86, in September. The typical fare was $158. September was the cheapest month we saw and October the dearest.
The most recent price we saw on this route was $138 on Frontier, seen Oct 16. It is an unverified observation and may have changed.
See every deal <a href="/from/denver">from Denver</a>, <a href="/to/san-antonio">to San Antonio</a>, or the return direction <a href="/from/san-antonio/to/denver">San Antonio to Denver</a>.
Latest price we saw: Denver to San Antonio
The most recent round-trip fare our sweep found on this route. It is not verified and may have changed since the date shown.
| From | Price | Per mile | Travel dates | Airline | Seen | Check price |
|---|---|---|---|---|---|---|
| Denver (DEN) to San Antonio (SAT) | $138 | 8.7¢ | Nov 2 – Nov 9 | Frontier | Oct 16 | Check price |
Price history: Denver to San Antonio
What we observed by month, from our signals database. Unverified observations, not bookable prices.
| Month | Low | Typical | Sightings |
|---|---|---|---|
| Oct 2026 | $138 | $220 | 20 |
| Sep 2026 | $86 | $144 | 24 |
| Aug 2026 | $98 | $161 | 85 |
| Jul 2026 | $108 | $108 | 1 |
Frequently asked questions
How many flight deals from Denver to San Antonio are on Sparkflights right now?
There are 0 verified deals from Denver to San Antonio on the board right now. The list refreshes hourly.
What is the lowest price ever seen from Denver to San Antonio?
The lowest fare we've recorded from Denver to San Antonio is $86, based on 130 price observations over 4 months.
How much does a flight from Denver to San Antonio cost?
The typical round-trip fare we observed from Denver to San Antonio is $158, against a recorded low of $86. These are observations, not quotes.
When is the cheapest month to fly Denver to San Antonio?
September was the cheapest month we observed from Denver to San Antonio and October the dearest, over 4 months of data.
What is the current price from Denver to San Antonio?
The most recent fare our sweep saw from Denver to San Antonio is $138, on Oct 16. It is an unverified observation rather than a verified deal, so check it before booking.