Cheap flights from Denver to San Antonio (DEN - SAT) from $41

This is the cheapest one-way flight price, found on 9/26. Prices may vary by date and flight preferences.
DEN — SAT
oct. 3 — oct. 101

The best prices from Denver Intl to San Antonio are usually found in January or August, booked 52 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

How to find the cheapest flight from Denver (DEN) to San Antonio (SAT)

All the information you need to plan the best DEN to SAT flight in 2023: compare Denver to San Antonio flight prices with the expected peak season, weather and rainfall in San Antonio.

Popular in

July

Cheapest in

January

Round-trip from

$294

One-way from

$77
High demand for flights, 23% potential price rise
Best time to find cheap flights, 25% potential price drop
From Denver Intl to San Antonio
One-way flight from Denver Intl to San Antonio

DEN - SAT

Price

$294 - $510

SAT

Temperature

51.8 - 84.2 °F

SAT

Rainfall

1.6 - 3.7 inches

What is the cheapest day to fly round-trip from Denver to San Antonio?

It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Denver to San Antonio?

Find a great deal and save up to 36% by booking at least 50 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Denver to San Antonio within the next two weeks, with the cheapest ticket starting at $254.

What is the cheapest month to fly from Denver to San Antonio?

January can be a great time to fly to San Antonio from Denver with a flight ticket averaging about $252. Cheapflights users have found deals in the month of January for as cheap as $79. The most expensive prices can be found in the month of July.

When is the cheapest time to fly from Denver to San Antonio (DEN - SAT)?

It’s optimal to fly from Denver to San Antonio in the afternoon. By choosing this option you can save up to 36% on the cost of your flight, compared to a flight at noon.

Cheap United Airlines flights from Denver to San Antonio

Consider these cheap United Airlines flights we've found departing from Denver to San Antonio. Deals update often to give you more flight options matching your criteria

Cheap Frontier flights from Denver to San Antonio

Browse through some of the cheapest Frontier flights traveling from Denver to San Antonio. Deals are refreshing constantly so come back soon for more options.

Cheap Denver to San Antonio flights in September & October 2023

The best prices found for DEN to SAT flights for September, October
Check out some of the best flight deals from Denver to San Antonio in 2023. Check back regularly for other flight deals.

Denver to San Antonio 2023 flight deals

Cheap flights to San Antonio from Denver found for this year
Check out some of the best flight deals from Denver to San Antonio in 2023. Check back regularly for other flight deals.

Non-stop flights to San Antonio from Denver

Save time with Denver to San Antonio direct flight deals
To help reduce your travel time, choose from one of these non-stop flights from Denver to San Antonio. Search for alternative flights from Denver to San Antonio by utilizing the search form above.

Denver to San Antonio flights leaving soon

Late deals on return flights to San Antonio from Denver, departing today and this week
Users seeking a last-minute flight from Denver to San Antonio should consider booking one of these fares. Tip: verify your flight details before completing your reservation.

One-way flights to San Antonio from Denver

The cheapest one-way flights from Denver to San Antonio
Take a look at some of the best available options we've come across on one-way flights from Denver to San Antonio. For those needing a return trip from Denver, there is a search form available above.

Find flights from Denver to San Antonio within your budget

Use the slider to find flights from Denver to San Antonio that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$48 - $207

Route

Depart

Return

Price

Denver IntlSan Antonio

DEN - SAT

DENSAT

Denver Intl

sáb. 10/28

Nonstop2h 13m

San Antonio

sáb. 11/4

Nonstop2h 21m

Denver IntlSan Antonio

DEN - SAT

DENSAT

Denver Intl

sáb. 10/28

Nonstop2h 13m

San Antonio

jue. 11/2

1 stop18h 07m

Denver IntlSan Antonio

DEN - SAT

DENSAT

Denver Intl

mar. 10/17

Nonstop2h 13m

San Antonio

mar. 10/24

Nonstop2h 19m

Denver IntlSan Antonio

DEN - SAT

DENSAT

Denver Intl

vie. 10/27

1 stop14h 38m

San Antonio

sáb. 11/4

Nonstop2h 21m

Denver IntlSan Antonio

DEN - SAT

DENSAT

Denver Intl

vie. 10/27

2 stops25h 01m

San Antonio

mar. 10/31

Nonstop2h 21m

Denver IntlSan Antonio

DEN - SAT

DENSAT

Denver Intl

mar. 10/17

1 stop14h 13m

San Antonio

mar. 10/24

Nonstop2h 19m

Denver IntlSan Antonio

DEN - SAT

DENSAT

Denver Intl

mar. 10/17

1 stop14h 13m

San Antonio

sáb. 10/21

1 stop8h 05m

Denver IntlSan Antonio

DEN - SAT

DENSAT

Denver Intl

mié. 11/15

Nonstop2h 08m

San Antonio

jue. 11/30

Nonstop2h 23m

Denver IntlSan Antonio

DEN - SAT

DENSAT

Denver Intl

lun. 10/16

1 stop7h 52m

San Antonio

sáb. 10/21

1 stop8h 19m

Flights are sorted by cheapest first

Deals found on 9/28

Reviews of airlines servicing San Antonio

Read reviews from past customers who have flown United Airlines, Frontier and Spirit Airlines from Denver to San Antonio. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
1,394 reviews

Entertainment

7.2

Food

7.2

Overall

8.1

Boarding

8.3

Crew

8.6

Comfort

8.0

Reviews

1 / 10

The seats are not very comfortable but the crew was nice!

Alaska Airlines
8.1
Very good
1,394 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Entertainment

7.2

Food

7.2

Overall

8.1

Boarding

8.3

Crew

8.6

Comfort

8.0

Reviews

1 / 10

The seats are not very comfortable but the crew was nice!

Delta
7.9
Good
3,023 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Entertainment

7.2

Food

7.2

Overall

8.1

Boarding

8.3

Crew

8.6

Comfort

8.0

Reviews

1 / 10

The seats are not very comfortable but the crew was nice!

United Airlines
7.4
Good
1,890 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Entertainment

7.2

Food

7.2

Overall

8.1

Boarding

8.3

Crew

8.6

Comfort

8.0

Reviews

1 / 10

The seats are not very comfortable but the crew was nice!

American Airlines
7.2
Good
2,635 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Entertainment

7.2

Food

7.2

Overall

8.1

Boarding

8.3

Crew

8.6

Comfort

8.0

Reviews

1 / 10

The seats are not very comfortable but the crew was nice!

Spirit Airlines
6.3
Okay
1,483 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Entertainment

7.2

Food

7.2

Overall

8.1

Boarding

8.3

Crew

8.6

Comfort

8.0

Reviews

1 / 10

The seats are not very comfortable but the crew was nice!

Related info for your journey

Useful info, stats and facts about Denver to San Antonio flights.

What airports do I use to fly from Denver to San Antonio?

San Antonio is the airport most travelers will use when flying to San Antonio from Denver Intl. Booking flights from Denver Intl (DEN) to San Antonio (SAT) should be relatively easy as there are 12 daily flights to San Antonio from 4 different airlines. 2h 05m is how long a flight from Denver to San Antonio will take if you book a nonstop flight.

Can I find flights from Denver to San Antonio for under $100 on Cheapflights?

Yes, there are multiple flights from Denver to San Antonio for under $100. The cheapest flight booked recently is on Frontier for just $48, but on average you can expect to pay $91.

Are there nonstop flights from Denver to San Antonio for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Denver to San Antonio under $100. A good price for a nonstop flight from Denver to San Antonio is less than $123.

Are there last-minute flights available from Denver to San Antonio for under $200?

There are currently 20+ open flights from Denver to San Antonio within the next 7 days for less than $200.

What days are nonstop flights available from Denver to San Antonio?

Days when nonstop flights are available for this flight are: Sunday, Monday, Tuesday, Thursday, Friday, Saturday.

How popular is this Denver to San Antonio flight route?

How many flights depart from Denver to San Antonio on average per day?

Per day, 16 flights depart from Denver to San Antonio on average.
Early Morning (Midnight to 6am) - 31% of flight departures
Morning (6am - Noon) - 25% of flight departures
Afternoon (Noon - 6pm) - 25% of flight departures
Evening (6pm - Midnight) - 19% of flight departures

How long is the flight from Denver to San Antonio?

Frontier and Spirit Airlines can get you from Denver to San Antonio in just under 2h 13m. Your travel time can differ by up to 12h. Denver and San Antonio are separated by a distance of 799 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from Denver to San Antonio round-trip?

Currently priced at $48, Frontier will fly you from Denver to San Antonio and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Spirit Airlines for as low as $125. Users have found that Frontier is 80% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Denver to San Antonio one-way?

To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $41. United Airlines flights start at $77 while deals on Spirit Airlines start at $82 one-way.

What are the most popular airlines that fly from Denver to San Antonio?

What are the most reliable airlines from Denver to San Antonio?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Denver to San Antonio on time: Air Canada (74%), United Airlines (74%), Southwest (72%).

What are the cheapest flights from Denver to San Antonio?

Looking at all options, your cheapest flight can be booked for $34. While the most popular route (Denver Intl - San Antonio) can be booked for $75 on average our data indicates $164 when flying from Denver to San Antonio.

What does DEN to SAT mean?

This is defined as Denver Intl Airport (DEN) and San Antonio Airport (SAT). Codes like San Antonio Airport are often used to just call airports uniquely.

Alternative routes for Denver to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Austinfrom $56 pp
Denver to Amarillofrom $158 pp
Denver to Midlandfrom $178 pp
Denver to Lubbockfrom $194 pp
Aspen to Austinfrom $572 pp

Top 4 airlines flying from Denver to San Antonio

The chart below displays the airlines Cheapflights users traveling from Denver to San Antonio choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$42Average$129FlexibilityNo cancel feeOn-time62%
Search Frontier flights
United AirlinesCheapest$116Average$317FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$196Average$253FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$196Average$316FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Hourly flight availability from Denver to San Antonio

See what time of day planes typically take off from Denver to San Antonio
2%of flight departuresEarly morningMidnight to 6 am
27%of flight departuresMorning6 am to noon
52%of flight departuresAfternoonNoon to 6 pm
19%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Denver to San Antonio

See how many times per day planes take to the skies headed from Denver to San Antonio
Sunday14daily flights
Monday13daily flights
Tuesday14daily flights
Wednesday13daily flights
Thursday13daily flights
Friday13daily flights
Saturday9daily flights

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How does Cheapflights help users find flights from Denver to San Antonio?

Cheapflights makes it easy to find Denver to San Antonio flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Denver to San Antonio?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Antonio from Denver.

Can Cheapflights find flights from Denver to San Antonio with no change fees?

Certainly. Search results for flights to San Antonio from Denver shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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Not ready to book yet? You can track prices for flights from Denver to San Antonio on Cheapflights with our Price Alert feature and get notified when better prices are available.

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