$60+ Cheap flights from Denver to San Antonio (DEN - SAT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SAT
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from Denver to San Antonio with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Denver Intl to San Antonio are usually found in January or February, booked 62 days in advance, depart on a Thursday or Wednesday and return on a Thursday
Cheap flight deals from Denver to San Antonio
Cheapest
Best
Last-minute
One-way
Cheapest flights from Denver to San AntonioExplore the most affordable flight options available from Denver to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
Explore the most affordable flight options available from Denver to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
This Frontier deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/249:34 am -
1 stop10h 42m
Wed 11/258:28 pm -
Nonstop2h 29m
Deal found 10/25![Frontier logo]()
$144
This Cheapflightsfares deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:42 pm -
1 stop25h 52m
Sat 11/211:31 pm -
Nonstop2h 26m
Deal found 10/27![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/164:06 pm -
Nonstop2h 19m
Tue 11/178:20 pm -
Nonstop2h 29m
Deal found 10/26![Frontier logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/124:06 pm -
Nonstop2h 19m
Sat 11/148:20 pm -
Nonstop2h 29m
Deal found 10/25![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/219:14 am -
Nonstop2h 22m
Mon 11/308:28 pm -
Nonstop2h 29m
Deal found 10/26![Frontier logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/104:06 pm -
Nonstop2h 19m
Wed 11/188:20 pm -
Nonstop2h 29m
Deal found 10/25![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/133:57 pm -
Nonstop2h 17m
Tue 11/178:20 pm -
Nonstop2h 29m
Deal found 10/25![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/114:06 pm -
Nonstop2h 19m
Sun 11/158:20 pm -
Nonstop2h 29m
Deal found 10/25![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2310:50 pm -
1 stop21h 26m
Thu 12/38:41 pm -
Nonstop2h 29m
Deal found 10/29![Frontier logo]()
$154
This Cheapflightsfares deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/266:42 am -
1 stop7h 36m
Thu 12/38:41 pm -
Nonstop2h 29m
Deal found 10/29![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/74:52 pm -
Nonstop2h 10m
Tue 12/156:47 pm -
Nonstop2h 22m
Deal found 10/26![Frontier logo]()
$156
This Frontier deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/194:06 pm -
Nonstop2h 19m
Thu 11/1910:29 pm -
1 stop12h 14m
Deal found 10/28![Frontier logo]()
$157
Best flights from Denver to San AntonioDiscover carefully curated flight deals from Denver to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
Discover carefully curated flight deals from Denver to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/275:40 am -
1 stop4h 10m
Wed 12/23:00 pm -
2 stops5h 30m
Deal found 10/29![Southwest logo]()
$256
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/178:34 pm -
Nonstop2h 25m
Sun 12/204:43 pm -
Nonstop2h 27m
Deal found 10/27![United Airlines logo]()
$307
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/252:24 pm -
1 stop9h 09m
Thu 11/2612:45 pm -
1 stop7h 46m
Deal found 10/26![Delta logo]()
$328
This Southwest deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/187:50 pm -
Nonstop2h 15m
Sun 12/206:50 pm -
Nonstop2h 20m
Deal found 10/26![Southwest logo]()
$330
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/18:34 pm -
Nonstop2h 25m
Tue 1/54:43 pm -
Nonstop2h 27m
Deal found 10/27![United Airlines logo]()
$357
This Southwest deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/269:05 am -
2 stops7h 40m
Thu 12/33:00 pm -
2 stops5h 30m
Deal found 10/26![Southwest logo]()
$337
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:08 am -
1 stop5h 32m
Wed 11/186:30 pm -
1 stop6h 04m
Deal found 10/26![Delta logo]()
$448
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/215:37 pm -
Nonstop2h 16m
Sun 11/298:56 am -
Nonstop2h 19m
Deal found 10/25![United Airlines logo]()
$427
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/157:05 am -
1 stop6h 45m
Tue 11/176:30 pm -
1 stop6h 04m
Deal found 10/26![Delta logo]()
$448
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/245:27 pm -
Nonstop2h 13m
Wed 12/304:43 pm -
Nonstop2h 27m
Deal found 10/29![United Airlines logo]()
$430
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/12:00 pm -
2 stops5h 40m
Sun 1/35:25 am -
1 stop4h 00m
Deal found 10/28![Southwest logo]()
$574
Last-minute flights from Denver to San AntonioDiscover last-minute flight deals from Denver to San Antonio. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to San Antonio. Data last updated October 30, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/104:06 pm -
Nonstop2h 19m
Fri 11/208:28 pm -
Nonstop2h 29m
Deal found 10/25![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/124:06 pm -
Nonstop2h 19m
Sat 11/148:20 pm -
Nonstop2h 29m
Deal found 10/25![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/133:57 pm -
Nonstop2h 17m
Mon 11/168:20 pm -
Nonstop2h 29m
Deal found 10/26![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/164:06 pm -
Nonstop2h 19m
Tue 11/178:20 pm -
Nonstop2h 29m
Deal found 10/26![Frontier logo]()
$146
This Cheapflightsfares deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:42 pm -
1 stop25h 52m
Sat 11/211:31 pm -
Nonstop2h 26m
Deal found 10/27![Frontier logo]()
$145
This Frontier deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/194:06 pm -
Nonstop2h 19m
Thu 11/1910:29 pm -
1 stop12h 14m
Deal found 10/28![Frontier logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/219:14 am -
Nonstop2h 22m
Mon 11/308:28 pm -
Nonstop2h 29m
Deal found 10/26![Frontier logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2310:50 pm -
1 stop21h 26m
Thu 12/38:41 pm -
Nonstop2h 29m
Deal found 10/29![Frontier logo]()
$154
This Frontier deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/249:34 am -
1 stop10h 42m
Wed 11/258:28 pm -
Nonstop2h 29m
Deal found 10/25![Frontier logo]()
$144
This Expedia deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:50 pm -
1 stop18h 28m
Tue 12/16:44 pm -
Nonstop2h 26m
Deal found 10/26![Frontier logo]()
$161
This Cheapflightsfares deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/266:42 am -
1 stop7h 36m
Thu 12/38:41 pm -
Nonstop2h 29m
Deal found 10/29![Frontier logo]()
$155
One-way flights from Denver to San AntonioSearch for one-way flight options from Denver to San Antonio. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Denver to San Antonio. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Super.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/34:37 pm -
Nonstop2h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Frontier logo]()
$60
This Cheapflightsfares deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/22:39 pm -
Nonstop2h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Frontier logo]()
$61
This Super.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/144:06 pm -
Nonstop2h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Frontier logo]()
$67
This Super.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/194:06 pm -
Nonstop2h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Frontier logo]()
$70
This Super.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/234:14 pm -
Nonstop2h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Frontier logo]()
$82
This Frontier deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/174:06 pm -
Nonstop2h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Frontier logo]()
$94
Find flight deals from Denver to San Antonio
Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $144 (Frontier) |
One-way from | $60 (Super.com) |
Popular in | July |
Cheapest in | January |
Average price | $284 |
Good round-trip deal | $198 or less |
Good one-way deal | $151 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Denver to San Antonio that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 30, 2026.
Use the filters below to find and compare flights from Denver to San Antonio that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverSan Antonio
DEN Denver Intl - SAT San Antonio
DENSAT
Denver Intl
Tue 12/22
4:25 pm-7:35 pm
Nonstop2h 10m
San Antonio
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$82
Quickest round-trip
DenverSan Antonio
DEN Denver Intl - SAT San Antonio
DENSAT
Denver Intl
Sat 11/21
5:10 pm-8:15 pm
Nonstop2h 05m
San Antonio
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$106
DenverSan Antonio
DEN Denver Intl - SAT San Antonio
DENSAT
Denver Intl
Wed 12/2
2:00 pm-8:40 pm
2 stops5h 40m
San Antonio
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$121
DenverSan Antonio
DEN Denver Intl - SAT San Antonio
DENSAT
Denver Intl
Wed 11/25
10:50 pm-3:18 pm
1 stop15h 28m
San Antonio
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$124
DenverSan Antonio
DEN Denver Intl - SAT San Antonio
DENSAT
Denver Intl
Fri 12/25
6:25 pm-9:45 pm
Nonstop2h 20m
San Antonio
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$129
DenverSan Antonio
DEN Denver Intl - SAT San Antonio
DENSAT
Denver Intl
Sat 2/13
3:40 pm-12:46 am
1 stop8h 06m
San Antonio
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$139
DenverSan Antonio
DEN Denver Intl - SAT San Antonio
DENSAT
Denver Intl
Mon 1/18
3:40 pm-10:30 pm
1 stop5h 50m
San Antonio
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$139
DenverSan Antonio
DEN Denver Intl - SAT San Antonio
DENSAT
Denver Intl
Thu 12/3
2:00 pm-8:40 pm
2 stops5h 40m
San Antonio
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$141
DenverSan Antonio
DEN Denver Intl - SAT San Antonio
DENSAT
Denver Intl
Sat 2/13
3:50 pm-10:50 pm
2 stops6h 00m
San Antonio
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$144
DenverSan Antonio
DEN Denver Intl - SAT San Antonio
DENSAT
Denver Intl
Fri 11/27
5:40 am-10:50 am
1 stop4h 10m
San Antonio
Wed 12/2
3:00 pm-7:30 pm
2 stops5h 30m
$256
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Denver to San Antonio
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to San Antonio in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Denver-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-San Antonio flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Denver-San Antonio flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Denver to San Antonio
Have a flexible travel schedule? Discover the best time to fly to San Antonio from Denver with our price prediction graph.
DEN-SAT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Denver to San Antonio
How far ahead should I book a flight from Denver to San Antonio?
To ensure you get the cheapest price possible for a flight from Denver to San Antonio, you should look to book at least 61 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Denver to San Antonio?
Currently, January is the cheapest month in which you can book a flight from Denver to San Antonio (average of $197). Flying from Denver to San Antonio in July is currently the most expensive (average of $387). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from DEN to SAT?
Find hourly flight availability from Denver to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2026.
It’s optimal to fly from Denver to San Antonio in the evening. By choosing this option you can save up to 38% on the cost of your flight, compared to a flight at noon.
What is the cheapest day to fly from Denver to San Antonio?
Use this chart to determine the cheapest time to fly round-trip from Denver to San Antonio. Price data was last updated on October 24, 2026.
Travelers seeking maximum savings on their Denver to San Antonio flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
The best insider tips for Denver to San Antonio flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Denver to San Antonio trip
Our travel experts
Reviews of airlines servicing San Antonio
Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated October 30, 2026.
See what other customers who have flown with Southwest,United Airlines, andFrontier from Denver to San Antonio have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.4
Overall
7.9
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.4
Overall
7.9
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.4
Overall
7.9
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.4
Overall
7.9
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Related info for your journey
Find useful and relevant information for your journey from Denver to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Antonio?
Book flights to San Antonio if you plan to visit one of these locationsNew Braunfels
Kerrville
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Top 3 airlines flying from Denver to San Antonio
Discover the top 3 airlines that operate flights from Denver to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$72 | Average$206 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$146 | Average$362 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$197 | Average$370 | FlexibilityNo cancel fee | On-time63% |