$27+ Cheap flights from San Antonio to Denver (SAT - DEN)
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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — DEN
Feb 20 — Feb 271
1 adult, Economy
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Find cheap flights from San Antonio to Denver 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 San Antonio to Denver Intl are usually found in February or January, booked 45 days in advance, depart on a Thursday or Saturday and return on a Saturday
Cheap flight deals from San Antonio to Denver
Cheapest flights from San Antonio to DenverExplore the most affordable flight options available from San Antonio to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.
Explore the most affordable flight options available from San Antonio to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.
This Super.com deal was found by Cheapflights users on 1/20. 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 3/58:25 pm
SAT
- DEN
Nonstop2h 24m
Frontier
Sun 3/85:45 am
DEN
- SAT
Nonstop2h 21m
Frontier
Deal found 1/20![Frontier logo]()
$87
This Super.com deal was found by Cheapflights users on 1/19. 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.
Wed 4/87:45 am
SAT
- DEN
Nonstop2h 22m
Frontier
Mon 4/139:00 pm
DEN
- SAT
Nonstop2h 19m
Frontier
Deal found 1/19![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 1/21. 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 3/186:45 am
SAT
- DEN
Nonstop2h 23m
Frontier
Fri 3/209:00 pm
DEN
- SAT
Nonstop2h 17m
Frontier
Deal found 1/21![Frontier logo]()
$91
This Frontier deal was found by Cheapflights users on 1/19. 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 3/35:36 pm
SAT
- DEN
Nonstop2h 24m
Frontier
Wed 3/42:00 pm
DEN
- SAT
Nonstop2h 15m
Frontier
Deal found 1/19![Frontier logo]()
$92
This Orbitz deal was found by Cheapflights users on 1/19. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/17:45 am
SAT
- DEN
Nonstop2h 22m
Frontier
Sun 4/59:00 pm
DEN
- SAT
Nonstop2h 19m
Frontier
Deal found 1/19![Frontier logo]()
$93
This Super.com deal was found by Cheapflights users on 1/19. 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 2/98:24 pm
SAT
- DEN
Nonstop2h 25m
Frontier
Wed 2/111:00 pm
DEN
- SAT
Nonstop2h 17m
Frontier
Deal found 1/19![Frontier logo]()
$97
This Travelocity deal was found by Cheapflights users on 1/19. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/186:12 pm
SAT
- DEN
Nonstop2h 25m
Frontier
Wed 2/2510:49 pm
DEN
- SAT
1 stop15h 58m
Frontier
Deal found 1/19![Frontier logo]()
$98
This Super.com deal was found by Cheapflights users on 1/20. 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 2/198:25 pm
SAT
- DEN
Nonstop2h 24m
Frontier
Sat 2/213:45 pm
DEN
- SAT
Nonstop2h 16m
Frontier
Deal found 1/20![Frontier logo]()
$106
This Super.com deal was found by Cheapflights users on 1/19. 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 2/147:56 pm
SAT
- DEN
Nonstop2h 25m
Frontier
Thu 2/194:13 pm
DEN
- SAT
Nonstop2h 17m
Frontier
Deal found 1/19![Frontier logo]()
$107
Find flight deals from San Antonio to Denver
Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Denver (DEN). 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 January 21, 2026.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $87 (Super.com) |
One-way from | $27 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $177 |
Good round-trip deal | $204 or less |
Good one-way deal | $130 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Antonio to Denver 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 January 21, 2026.
Use the filters below to find and compare flights from San Antonio to Denver that are best for you.
Fly from
San Antonio
Fly to
Denver
Route
Depart
Return
Price
San AntonioDenver
SAT - DEN
SATDEN
San Antonio
Tue 2/17
7:15 pm-10:40 pm
1 stop4h 25m
Denver Intl
Tue 2/24
10:55 am-4:30 pm
1 stop4h 35m
$157
San AntonioDenver
SAT - DEN
SATDEN
San Antonio
Sat 2/21
2:35 pm-9:06 pm
1 stop7h 31m
Denver Intl
Mon 2/23
6:20 pm-12:41 am
1 stop5h 21m
$207
San AntonioDenver
SAT - DEN
SATDEN
San Antonio
Fri 2/20
5:59 pm-10:27 pm
1 stop5h 28m
Denver Intl
Mon 2/23
3:59 pm-12:41 am
1 stop7h 42m
$217
San AntonioDenver
SAT - DEN
SATDEN
San Antonio
Thu 2/26
4:50 pm-8:55 pm
1 stop5h 05m
Denver Intl
Sun 3/1
5:30 am-10:40 am
1 stop4h 10m
$217
San AntonioDenver
SAT - DEN
SATDEN
San Antonio
Wed 4/8
1:47 pm-7:57 pm
1 stop7h 10m
Denver Intl
Sun 4/12
12:55 am-9:46 am
1 stop7h 51m
$217
San AntonioDenver
SAT - DEN
SATDEN
San Antonio
Sat 2/21
6:35 am-1:20 pm
2 stops7h 45m
Denver Intl
Sat 2/28
8:25 am-2:45 pm
1 stop5h 20m
$222
San AntonioDenver
SAT - DEN
SATDEN
San Antonio
Thu 4/30
7:45 pm-10:45 pm
1 stop4h 00m
Denver Intl
Tue 5/5
10:55 am-6:15 pm
1 stop6h 20m
$227
San AntonioDenver
SAT - DEN
SATDEN
San Antonio
Sat 2/21
6:35 am-1:20 pm
2 stops7h 45m
Denver Intl
Mon 2/23
3:10 pm-8:20 pm
1 stop4h 10m
$242
San AntonioDenver
SAT - DEN
SATDEN
San Antonio
Tue 3/3
6:35 am-12:15 pm
2 stops6h 40m
Denver Intl
Mon 3/9
9:05 am-2:25 pm
1 stop4h 20m
$242
San AntonioDenver
SAT - DEN
SATDEN
San Antonio
Tue 2/10
5:12 pm-6:36 pm
Nonstop2h 24m
$27
Showing 1-10 of 20 results
Compare providers for flights from San Antonio to Denver
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 San Antonio to Denver in January.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Antonio-Denver flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on San Antonio-Denver flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from San Antonio-Denver flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Antonio-Denver flights, Cheapflights users trust CheapOair the most. CheapOair 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 San Antonio-Denver 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 San Antonio to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from San Antonio with our price prediction graph.
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 San Antonio to Denver
Prices
Airlines
How far ahead should I book a flight from San Antonio to Denver?
Use this chart to determine the optimal time to book a round-trip flight from San Antonio to Denver. Price data was last updated on January 16, 2026.
To ensure you get the cheapest price possible for a flight from San Antonio to Denver, you should look to book at least 45 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 San Antonio to Denver?
Currently, March is the cheapest month in which you can book a flight from San Antonio to Denver (average of $38). Flying from San Antonio to Denver in June is currently the most expensive (average of $98). 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 SAT to DEN?
Find hourly flight availability from San Antonio to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2026.
Unlike at noon, when flights are generally more expensive, you can save up to 54% on flights from San Antonio to Denver by exploring options for tickets in the evening.
What is the cheapest day to fly from San Antonio to Denver?
Use this chart to determine the cheapest time to fly round-trip from San Antonio to Denver. Price data was last updated on January 17, 2026.
Travelers seeking maximum savings on their San Antonio to Denver flight should consider departing on Sunday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
The best insider tips for San Antonio to Denver 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 San Antonio to Denver trip
Our travel experts
Reviews of airlines servicing Denver
Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated January 21, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from San Antonio to Denver to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from San Antonio to Denver. 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 Denver?
Book flights to Denver if you plan to visit one of these locationsThornton
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Winter Park
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Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for San Antonio to Denver
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from San Antonio to Denver
Discover the top 5 airlines that operate flights from San Antonio to Denver. 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 January 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$53 | Average$153 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$98 | Average$196 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$106 | Average$336 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$133 | Average$311 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$177 | Average$301 | FlexibilityNo cancel fee | On-time63% |