$39+ Cheap flights from Denver to San Antonio (DEN - SAT)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SAT
Apr 30 — May 71
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 September or January, booked 14 days in advance, depart on a Saturday or Friday 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 March 31, 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 March 31, 2026.
This Super.com deal was found by Cheapflights users on 3/28. 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.
Mon 4/139:00 pm
DEN
- SAT
Nonstop2h 19m
Frontier
Thu 4/163:00 pm
SAT
- DEN
Nonstop2h 26m
Frontier
Deal found 3/28![Frontier logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 4/1512:35 pm
DEN
- SAT
Nonstop2h 18m
Frontier
Fri 4/173:00 pm
SAT
- DEN
Nonstop2h 26m
Frontier
Deal found 3/30![Frontier logo]()
$108
This Frontier deal was found by Cheapflights users on 3/30. 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 4/2811:50 am
DEN
- SAT
Nonstop2h 19m
Frontier
Tue 5/58:59 pm
SAT
- DEN
1 stop7h 26m
Frontier
Deal found 3/30![Frontier logo]()
$110
This Super.com deal was found by Cheapflights users on 3/30. 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.
Tue 5/53:42 pm
DEN
- SAT
Nonstop2h 17m
Frontier
Fri 5/87:54 pm
SAT
- DEN
Nonstop2h 29m
Frontier
Deal found 3/30![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Thu 5/143:42 pm
DEN
- SAT
Nonstop2h 17m
Frontier
Sun 5/177:54 pm
SAT
- DEN
Nonstop2h 29m
Frontier
Deal found 3/29![Frontier logo]()
$113
This Frontier deal was found by Cheapflights users on 3/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1710:57 am
DEN
- SAT
Nonstop2h 18m
Frontier
Mon 4/203:00 pm
SAT
- DEN
Nonstop2h 26m
Frontier
Deal found 3/29![Frontier logo]()
$114
This Expedia deal was found by Cheapflights users on 3/30. 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.
Mon 4/2710:57 am
DEN
- SAT
Nonstop2h 18m
Frontier
Mon 5/46:31 pm
SAT
- DEN
1 stop9h 54m
Frontier
Deal found 3/30![Frontier logo]()
$115
This Super.com deal was found by Cheapflights users on 3/30. 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 4/1610:57 am
DEN
- SAT
Nonstop2h 18m
Frontier
Fri 4/173:00 pm
SAT
- DEN
Nonstop2h 26m
Frontier
Deal found 3/30![Frontier logo]()
$117
This Expedia deal was found by Cheapflights users on 3/30. 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.
Thu 4/163:32 pm
DEN
- SAT
1 stop16h 52m
Frontier
Mon 4/203:00 pm
SAT
- DEN
Nonstop2h 26m
Frontier
Deal found 3/30![Frontier logo]()
$118
This Super.com deal was found by Cheapflights users on 3/29. 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.
Tue 4/1411:50 am
DEN
- SAT
Nonstop2h 19m
Frontier
Wed 4/154:49 pm
SAT
- DEN
Nonstop2h 26m
Frontier
Deal found 3/29![Frontier logo]()
$123
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 March 31, 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 March 31, 2026.
This Southwest deal was found by Cheapflights users on 3/26. 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.
Sat 5/21:45 pm
DEN
- SAT
Nonstop2h 15m
Southwest
Sat 5/96:15 am
SAT
- DEN
2 stops5h 45m
Southwest
Deal found 3/26![Southwest logo]()
$212
This United Airlines deal was found by Cheapflights users on 3/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/179:44 am
DEN
- SAT
Nonstop2h 16m
United Airlines
Mon 4/204:45 pm
SAT
- DEN
Nonstop2h 22m
United Airlines
Deal found 3/26![United Airlines logo]()
$327
This Southwest deal was found by Cheapflights users on 3/26. 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 5/147:00 am
DEN
- SAT
1 stop5h 15m
Southwest
Sat 5/161:15 pm
SAT
- DEN
1 stop6h 45m
Southwest
Deal found 3/26![Southwest logo]()
$217
This Delta deal was found by Cheapflights users on 3/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/57:05 am
DEN
- SAT
1 stop9h 16m
Delta
Wed 4/86:13 am
SAT
- DEN
1 stop8h 21m
Delta
Deal found 3/29![Delta logo]()
$467
This Southwest deal was found by Cheapflights users on 3/26. 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.
Wed 5/1310:40 am
DEN
- SAT
1 stop5h 20m
Southwest
Sat 5/166:15 am
SAT
- DEN
2 stops5h 45m
Southwest
Deal found 3/26![Southwest logo]()
$252
This Southwest deal was found by Cheapflights users on 3/26. 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.
Sat 5/23:00 pm
DEN
- SAT
1 stop7h 20m
Southwest
Sun 5/106:10 am
SAT
- DEN
2 stops5h 55m
Southwest
Deal found 3/26![Southwest logo]()
$312
This Southwest deal was found by Cheapflights users on 3/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/304:50 pm
DEN
- SAT
2 stops5h 40m
Southwest
Sun 5/38:30 am
SAT
- DEN
1 stop6h 25m
Southwest
Deal found 3/27![Southwest logo]()
$322
This United Airlines deal was found by Cheapflights users on 3/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:00 am
DEN
- SAT
2 stops13h 35m
United Airlines
Mon 5/187:10 pm
SAT
- DEN
1 stop5h 48m
United Airlines
Deal found 3/28![United Airlines logo]()
$435
This United Airlines deal was found by Cheapflights users on 3/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1411:42 am
DEN
- SAT
1 stop5h 01m
United Airlines
Sat 4/187:15 pm
SAT
- DEN
1 stop5h 42m
United Airlines
Deal found 3/26![United Airlines logo]()
$463
This Southwest deal was found by Cheapflights users on 3/30. 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 4/237:10 am
DEN
- SAT
1 stop5h 55m
Southwest
Sun 4/266:10 am
SAT
- DEN
2 stops5h 55m
Southwest
Deal found 3/30![Southwest logo]()
$355
This Southwest deal was found by Cheapflights users on 3/28. 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.
Sun 6/285:15 pm
DEN
- SAT
2 stops5h 35m
Southwest
Thu 7/25:40 am
SAT
- DEN
1 stop5h 05m
Southwest
Deal found 3/28![Southwest logo]()
$462
Last-minute flights from Denver to San AntonioDiscover last-minute flight deals from Denver to San Antonio. Data last updated March 31, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to San Antonio. Data last updated March 31, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 3/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/109:00 pm
DEN
- SAT
Nonstop2h 19m
Frontier
Tue 4/144:04 pm
SAT
- DEN
Nonstop2h 26m
Frontier
Deal found 3/26![Frontier logo]()
$109
This Super.com deal was found by Cheapflights users on 3/28. 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.
Mon 4/139:00 pm
DEN
- SAT
Nonstop2h 19m
Frontier
Thu 4/163:00 pm
SAT
- DEN
Nonstop2h 26m
Frontier
Deal found 3/28![Frontier logo]()
$107
This Super.com deal was found by Cheapflights users on 3/29. 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.
Tue 4/1411:50 am
DEN
- SAT
Nonstop2h 19m
Frontier
Wed 4/154:49 pm
SAT
- DEN
Nonstop2h 26m
Frontier
Deal found 3/29![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 4/1512:35 pm
DEN
- SAT
Nonstop2h 18m
Frontier
Fri 4/173:00 pm
SAT
- DEN
Nonstop2h 26m
Frontier
Deal found 3/30![Frontier logo]()
$108
This Super.com deal was found by Cheapflights users on 3/30. 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 4/1610:57 am
DEN
- SAT
Nonstop2h 18m
Frontier
Fri 4/173:00 pm
SAT
- DEN
Nonstop2h 26m
Frontier
Deal found 3/30![Frontier logo]()
$117
This Expedia deal was found by Cheapflights users on 3/30. 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.
Thu 4/163:32 pm
DEN
- SAT
1 stop16h 52m
Frontier
Mon 4/203:00 pm
SAT
- DEN
Nonstop2h 26m
Frontier
Deal found 3/30![Frontier logo]()
$118
This Frontier deal was found by Cheapflights users on 3/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1710:57 am
DEN
- SAT
Nonstop2h 18m
Frontier
Mon 4/203:00 pm
SAT
- DEN
Nonstop2h 26m
Frontier
Deal found 3/29![Frontier logo]()
$114
This Expedia deal was found by Cheapflights users on 3/30. 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.
Mon 4/2710:57 am
DEN
- SAT
Nonstop2h 18m
Frontier
Mon 5/46:31 pm
SAT
- DEN
1 stop9h 54m
Frontier
Deal found 3/30![Frontier logo]()
$115
This Frontier deal was found by Cheapflights users on 3/30. 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 4/2811:50 am
DEN
- SAT
Nonstop2h 19m
Frontier
Tue 5/58:59 pm
SAT
- DEN
1 stop7h 26m
Frontier
Deal found 3/30![Frontier logo]()
$110
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 March 31, 2026.
Search for one-way flight options from Denver to San Antonio. Find affordable one-way fares based on user searches. Data last updated March 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Tue 4/2811:50 am
DEN
- SAT
Nonstop2h 19m
Frontier
Deal found 3/29![Frontier logo]()
$39
This Frontier deal was found by Cheapflights users on 3/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:35 pm
DEN
- SAT
Nonstop2h 18m
Frontier
Deal found 3/26![Frontier logo]()
$40
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/143:42 pm
DEN
- SAT
Nonstop2h 17m
Frontier
Deal found 3/27![Frontier logo]()
$43
This Frontier deal was found by Cheapflights users on 3/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/283:42 pm
DEN
- SAT
Nonstop2h 17m
Frontier
Deal found 3/27![Frontier logo]()
$44
This Frontier deal was found by Cheapflights users on 3/30. 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 5/263:42 pm
DEN
- SAT
Nonstop2h 17m
Frontier
Deal found 3/30![Frontier logo]()
$45
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1610:57 am
DEN
- SAT
Nonstop2h 18m
Frontier
Deal found 3/27![Frontier logo]()
$48
This Super.com deal was found by Cheapflights users on 3/29. 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.
Mon 4/139:00 pm
DEN
- SAT
Nonstop2h 19m
Frontier
Deal found 3/29![Frontier logo]()
$58
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/109:00 pm
DEN
- SAT
Nonstop2h 19m
Frontier
Deal found 3/27![Frontier logo]()
$68
This Frontier deal was found by Cheapflights users on 3/28. 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.
Fri 4/2410:57 am
DEN
- SAT
Nonstop2h 18m
Frontier
Deal found 3/28![Frontier logo]()
$69
This Super.com deal was found by Cheapflights users on 3/27. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2610:55 am
DEN
- SAT
Nonstop2h 18m
Frontier
Deal found 3/27![Frontier logo]()
$73
This Super.com deal was found by Cheapflights users on 3/27. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1711:59 pm
DEN
- SAT
1 stop16h 36m
Frontier
Deal found 3/27![Frontier logo]()
$75
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 March 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $107 (Super.com) |
One-way from | $39 (Kiwi.com) |
Popular in | June |
Cheapest in | September |
Average price | $236 |
Good round-trip deal | $175 or less |
Good one-way deal | $128 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 2,558,603 searches. Data last updated March 31, 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 - SAT
DENSAT
Denver Intl
Sat 5/2
1:45 pm-5:00 pm
Nonstop2h 15m
San Antonio
Sat 5/9
6:15 am-11:00 am
2 stops5h 45m
$212
DenverSan Antonio
DEN - SAT
DENSAT
Denver Intl
Thu 5/14
7:00 am-1:15 pm
1 stop5h 15m
San Antonio
Sat 5/16
1:15 pm-7:00 pm
1 stop6h 45m
$217
DenverSan Antonio
DEN - SAT
DENSAT
Denver Intl
Wed 5/13
10:40 am-5:00 pm
1 stop5h 20m
San Antonio
Sat 5/16
6:15 am-11:00 am
2 stops5h 45m
$252
DenverSan Antonio
DEN - SAT
DENSAT
Denver Intl
Sat 5/2
3:00 pm-11:20 pm
1 stop7h 20m
San Antonio
Sun 5/10
6:10 am-11:05 am
2 stops5h 55m
$312
DenverSan Antonio
DEN - SAT
DENSAT
Denver Intl
Thu 4/30
4:50 pm-11:30 pm
2 stops5h 40m
San Antonio
Sun 5/3
8:30 am-1:55 pm
1 stop6h 25m
$322
Quickest round-trip
DenverSan Antonio
DEN - SAT
DENSAT
Denver Intl
Fri 4/17
9:44 am-1:00 pm
Nonstop2h 16m
San Antonio
Mon 4/20
4:45 pm-6:07 pm
Nonstop2h 22m
$327
DenverSan Antonio
DEN - SAT
DENSAT
Denver Intl
Thu 4/23
7:10 am-2:05 pm
1 stop5h 55m
San Antonio
Sun 4/26
6:10 am-11:05 am
2 stops5h 55m
$355
DenverSan Antonio
DEN - SAT
DENSAT
Denver Intl
Wed 5/13
6:00 am-8:35 pm
2 stops13h 35m
San Antonio
Mon 5/18
7:10 pm-11:58 pm
1 stop5h 48m
$435
DenverSan Antonio
DEN - SAT
DENSAT
Denver Intl
Sun 6/28
5:15 pm-11:50 pm
2 stops5h 35m
San Antonio
Thu 7/2
5:40 am-9:45 am
1 stop5h 05m
$462
DenverSan Antonio
DEN - SAT
DENSAT
Denver Intl
Tue 4/14
11:42 am-5:43 pm
1 stop5h 01m
San Antonio
Sat 4/18
7:15 pm-11:57 pm
1 stop5h 42m
$463
Showing 1-10 of 21 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 March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 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.
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Everything you need to know about your flight from Denver to San Antonio
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How far ahead should I book a flight from Denver to San Antonio?
Use this chart to determine the optimal time to book a round-trip flight from Denver to San Antonio. Price data was last updated on March 13, 2026.
To ensure you get the cheapest price possible for a flight from Denver to San Antonio, you should look to book at least 14 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, April is the cheapest month in which you can book a flight from Denver to San Antonio (average of $48). Flying from Denver to San Antonio in June is currently the most expensive (average of $95). 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 March 31, 2026.
It’s optimal to fly from Denver to San Antonio in the afternoon. By choosing this option you can save up to 18% on the cost of your flight, compared to a flight in the morning.
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 March 28, 2026.
Travelers seeking maximum savings on their Denver to San Antonio flight should consider departing on Saturday at noon when fares are most often at their lowest. Monday afternoons 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 March 31, 2026.
See what other customers who have flown with Southwest,United Airlines, andAmerican Airlines 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.
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
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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Denver and San Antonio flights
Browse other Denver and San Antonio flight options. Last updated on March 31, 2026.
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Explore flights to San Antonio departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on March 31, 2026.
Top 4 airlines flying from Denver to San Antonio
Discover the top 4 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 2,558,603 searches. Data last updated March 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$66 | Average$177 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$143 | Average$313 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$190 | Average$284 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$196 | Average$286 | FlexibilityNo cancel fee | On-time71% |