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

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

The best prices from San Antonio to Denver Intl are usually found in September or October, booked 48 days in advance, depart on a Tuesday or Wednesday and return on a Saturday

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

All the information you need to plan the best SAT to DEN flight in 2021: compare San Antonio to Denver flight prices with the expected peak season, weather and rainfall in Denver.
SAT - DEN
Price
$97 - $262
DEN
Temperature
30.2 - 73.4 °F
DEN
Precipitation
0.5 - 2.3 inches

Popular in

December

High demand for flights, 35% potential price rise

Cheapest in

September

Best time to find cheap flights, 43% potential price drop

Round-trip from

$97

From San Antonio to Denver Intl

One-way from

$88

One-way flight from San Antonio to Denver Intl

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest month to fly from San Antonio to Denver?

The best pricing can be found in the month of September. Prices to Denver from San Antonio average $169. You can even find prices in September for less than $169, as users have found deals to Denver from as low as $77. The month of December appears to be one of the more expensive times to travel to Denver from San Antonio. Flying in the targeted month can save you up to 54%.

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

Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 72% on the overall cost on flights from San Antonio to Denver.

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

Unlike at noon, when flights are generally more expensive, you can save up to 34% on flights from San Antonio to Denver by exploring options for tickets in the morning.

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

Travelers have found it’s best to book a flight 45 days in advance to save up to 16% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 45 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from San Antonio to Denver 1-2 weeks in advance for as low as $156, or $179 for flights within the next 24 hours.

Cheap flights from San Antonio to Denver in October, November 2021

The best prices found for SAT to DEN flights for October, November
5 Nov - 6 Nov
$83pp
SAT
San Antonio
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAT
San Antonio
12 Nov - 15 Nov
$84pp
SAT
San Antonio
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAT
San Antonio
12 Nov - 19 Nov
$93pp
SAT
San Antonio
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAT
San Antonio

San Antonio to Denver 2021 flight deals

Cheap flights to Denver from San Antonio found for this year
5 Nov - 6 Nov
$83pp
SAT
San Antonio
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAT
San Antonio
12 Nov - 15 Nov
$84pp
SAT
San Antonio
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAT
San Antonio
12 Nov - 19 Nov
$93pp
SAT
San Antonio
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAT
San Antonio

Non-stop flights to Denver from San Antonio

Save time with San Antonio to Denver direct flight deals
5 Nov - 6 Nov
$83pp
SAT
San Antonio
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAT
San Antonio
12 Nov - 15 Nov
$84pp
SAT
San Antonio
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAT
San Antonio
12 Nov - 19 Nov
$93pp
SAT
San Antonio
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAT
San Antonio

Last minute flights from San Antonio to Denver

Late deals on round-trip flights to Denver from San Antonio, departing today and this week
23 Oct - 25 Oct
$93pp
SAT
San Antonio
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAT
San Antonio
25 Oct - 27 Oct
$113pp
SAT
San Antonio
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
 
1 STOP
SAT
San Antonio
23 Oct - 25 Oct
$147pp
SAT
San Antonio
Multiple Airlines
 
1 STOP
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAT
San Antonio

One-way flights to Denver Intl from San Antonio

The cheapest one-way flights from San Antonio to Denver
8:10 am - 12:56 pm
Delta
1 Stop
5h 46m
SAT - DEN
Delta
$88
Delta
10:13 am - 11:36 am
Frontier
Nonstop
2h 23m
SAT - DEN
Frontier
$104
Orbitz
2:05 am - 6:03 am
American Airlines
1 Stop
4h 58m
SAT - DEN
American Airlines

Related info for your journey

Useful info, stats and facts about <span class="emphasized">San Antonio</span> to <span class="emphasized">Denver</span> flights.

Flight FAQs

From San Antonio to Denver

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

If you wish to fly to Denver from San Antonio, then you need to book flights from San Antonio to Denver Intl. There are 14 flights from San Antonio (SAT) to Denver Intl (DEN) per day to choose from. Flights to Denver from San Antonio are available from 6 different airlines, which means you should have some options if you want to compare airfare deals. 2h 18m is how long a nonstop flight from San Antonio to Denver Intl typically takes.

Which airlines flying from San Antonio to Denver Intl have flexible cancellations due to COVID-19?

Some of our airline partners flying from San Antonio to Denver Intl have new flexible policies in place due to COVID-19. Frontier, United Airlines, and American Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Frontier with this kind of flexibility.

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

Yes, there are multiple flights from San Antonio to Denver for under $100. The cheapest flight booked recently is on Frontier for just $83, but on average you can expect to pay $107.

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

Cheapflights has at least 20 direct flights from San Antonio to Denver under $100. A good price for a nonstop flight from San Antonio to Denver is less than $112.

Are there last-minute flights available from San Antonio to Denver for under $100?

There are currently 20+ open flights from San Antonio to Denver within the next 7 days for less than $100.

How popular is this San Antonio to Denver flight route?

The San Antonio to Denver Intl flight path was viewed by 341 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

Currently priced at $83, Frontier will fly you from San Antonio to Denver and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $112. You may be able to fly from San Antonio to Denver for 50% less than the average price by searching for these airlines.

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

One-way options have recently been found by users for as low as $42 on Frontier. Other airlines that offer cheap prices include United Airlines from $59 and American Airlines from $76 one-way.

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

Before booking your flight from San Antonio to Denver check out the most popular airlines for this route: Major Airline, American Airlines or Delta.

What are the cheapest flights from San Antonio to Denver?

Looking for the cheapest flight from San Antonio to Denver? While on average our users pay $406, our data indicates the cheapest price to be $38. The most popular route (San Antonio - Denver Intl), is priced around $78.

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

The top 3 most reliable airlines when flying from San Antonio to Denver are Frontier (98%), SkyWest Airlines (96%) and United Airlines (94%).

COVID Restrictions

View COVID Travel Restrictions for Denver, CO

Do I need a COVID test to fly to Denver from San Antonio?

Information is based on travel restrictions for travel to Denver Intl within the United States

Most visitors from San Antonio need to provide a negative COVID-19 test result and/or quarantine to enter Denver Intl.

COVID-19 testing requirements
Visitors from San Antonio must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Denver Intl.

Quarantine requirements
Visitors from San Antonio are not required to quarantine after entering Denver Intl.

Do I need a test to fly back to San Antonio from Denver?

Returning to San Antonio from Denver Intl

COVID-19 testing requirements
Visitors from Denver Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to San Antonio.

Quarantine requirements
Visitors from Denver Intl are not required to quarantine after entering San Antonio.

Hide COVID Travel Restrictions for Denver, CO

Alternative routes for San Antonio to Denver

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Denver

Things to know before you go - useful duration and weather info for your trip from San Antonio to Denver.
Flight duration from SAT to DEN
2h 16m
Average temperature for October in Denver
66.2 °F
Avg rainfall for October in Denver
0.9 ″

Airports servicing San Antonio

Airports servicing Denver

Top 5 airlines flying from San Antonio to Denver Intl

The chart below displays the airlines Cheapflights users traveling from San Antonio to Denver choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Spirit Airlines
$35 $91 No cancel fee 65%
Frontier
$48 $127 No cancel fee 62%
American Airlines
$57 $213 No cancel fee 71%
Delta
$77 $174 No cancel fee N/A
United Airlines
$97 $249 No cancel fee 69%

Hourly flight availability from San Antonio to Denver

See what time of day planes typically take off from San Antonio towards Denver.
Afternoon Noon to 6 PM 46% of SAT to DEN departures
Morning 6 AM to noon 44% of SAT to DEN departures
Evening 6 PM to midnight 6% of SAT to DEN departures
Early morning Midnight to 6 AM 4% of SAT to DEN departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from San Antonio to Denver
See how many times per day planes take to the skies headed from San Antonio to Denver.
Sunday
14 daily flights
Monday
15 daily flights
Tuesday
12 daily flights
Wednesday
12 daily flights
Thursday
14 daily flights
Friday
15 daily flights
Saturday
16 daily flights
Home North America USA Colorado Denver Cheap flights from San Antonio to Denver