$69 Cheap Flights from Austin (AUS) to Denver (DEN)

View $69 flight on Sat, Oct 18, 2025Opens in a new window

Popular airlines from Austin-Bergstrom Intl. Airport (AUS) to Denver Intl. Airport (DEN)

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Cheap Flights from Austin to Denver (AUS-DEN)

Prices were available within the past 7 days and start at $69 for one-way flights and $99 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, Oct 8 - Sat, Oct 11
AUS
Austin
DEN
Denver
$99 Roundtrip, found 9 hours ago
$99
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Wed, Oct 8 from Austin to Denver, returning Sat, Oct 11, priced at $99 found 9 hours ago
Frontier Airlines
Tue, Sep 16 - Wed, Sep 17
AUS
Austin
DEN
Denver
$109 Roundtrip, found 4 hours ago
$109
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Tue, Sep 16 from Austin to Denver, returning Wed, Sep 17, priced at $109 found 4 hours ago
Frontier Airlines
Mon, Oct 27 - Wed, Nov 12
AUS
Austin
DEN
Denver
$111 Roundtrip, found 4 hours ago
$111
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Mon, Oct 27 from Austin to Denver, returning Wed, Nov 12, priced at $111 found 4 hours ago
Frontier Airlines
Wed, Oct 8 - Mon, Oct 13
AUS
Austin
DEN
Denver
$111 Roundtrip, found 5 hours ago
$111
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Wed, Oct 8 from Austin to Denver, returning Mon, Oct 13, priced at $111 found 5 hours ago
Frontier Airlines
Thu, Nov 13 - Sat, Nov 15
AUS
Austin
DEN
Denver
$114 Roundtrip, found 6 days ago
$114
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, Nov 13 from Austin to Denver, returning Sat, Nov 15, priced at $114 found 6 days ago
Frontier Airlines
Wed, Nov 12 - Sat, Nov 15
AUS
Austin
DEN
Denver
$117 Roundtrip, found 4 hours ago
$117
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Wed, Nov 12 from Austin to Denver, returning Sat, Nov 15, priced at $117 found 4 hours ago
Frontier Airlines
Tue, Sep 9 - Tue, Sep 16
AUS
Austin
DEN
Denver
$119 Roundtrip, found 6 hours ago
$119
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Tue, Sep 9 from Austin to Denver, returning Tue, Sep 16, priced at $119 found 6 hours ago
Southwest Airlines
Wed, Oct 8 - Mon, Oct 13
AUS
Austin
DEN
Denver
$147 Roundtrip, found 5 hours ago
$147
Roundtrip
found 5 hours ago
Select Southwest Airlines flight, departing Wed, Oct 8 from Austin to Denver, returning Mon, Oct 13, priced at $147 found 5 hours ago
United
Fri, Dec 12 - Tue, Dec 16
AUS
Austin
DEN
Denver
$157 Roundtrip, just found
$157
Roundtrip
just found
Select United flight, departing Fri, Dec 12 from Austin to Denver, returning Tue, Dec 16, priced at $157 just found
American Airlines
Fri, Dec 12 - Tue, Dec 16
AUS
Austin
DEN
Denver
$177 Roundtrip, just found
$177
Roundtrip
just found
Select American Airlines flight, departing Fri, Dec 12 from Austin to Denver, returning Tue, Dec 16, priced at $177 just found

Find the cheapest month to fly from Austin (AUS) to Denver (DEN)

September is typically the cheapest month to fly

From $48 - $128 per traveler.

Graph displaying average flight prices per month

Alternative airports near Denver

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Denver Intl. DEN. Cheapest option available. Average driving time to city center is 32 minutes. Flights from $211
DEN
Denver Intl.
Cheapest
Average driving time to city center32 min
Flights from $211
Flights from Austin (AUS) to Denver (DEN)
Origin airport
Austin-Bergstrom Intl.
Destination airport
Denver Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$94
Distance
774 mi
Average flight time
1 hour 13 mins

Austin to Denver Flights

The cheapest times to fly from Austin to Denver

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Austin to Denver are during the month of October. You can find some of the cheapest flights from Austin to Denver with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Austin to Denver

Sunday is one of the best days to book for cheap flights from Austin to Denver: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Austin to Denver

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Austin to Denver in 2025. You can also book with separate airlines for your outbound and return journeys, from $69 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Austin to Denver flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Austin to Denver airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Austin-Bergstrom Intl. Airport (AUS) to Denver Intl. Airport (DEN) cost?
Cheap return flights from Austin-Bergstrom Intl. Airport (AUS) to Denver Intl. Airport (DEN) start at $107. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Frontier Airlines flight leaving AUS on August 9 2025 and touching down at DEN. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from AUS to DEN?
The cheapest flights from AUS to DEN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Austin-Bergstrom Intl. Airport (AUS) to Denver Intl. Airport (DEN)?
Take the express route to Denver Intl. Airport (DEN). 3 carriers operate direct routes from Austin-Bergstrom Intl. Airport (AUS), including:

  • Southwest Airlines
  • United Airlines
  • Frontier Airlines

What is the cheapest airline that flies from AUS to DEN?
With tickets starting at $62 for a one-way journey from AUS to DEN, Frontier Airlines is currently the cheapest carrier operating this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from AUS on September 22 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Austin-Bergstrom Intl. Airport (AUS) to Denver Intl. Airport (DEN)?
With an average of 11 nonstop flights departing from Austin-Bergstrom Intl. Airport (AUS) to Denver Intl. Airport (DEN) daily, you'll be cruising above the clouds before you know it.
What are the most popular departure times for flights from Austin-Bergstrom Intl. Airport (AUS) to Denver Intl. Airport (DEN)?
More passengers fly between AUS and DEN at 4 PM than at any other time. Prefer a quieter experience? Consider flying outside peak hours and it's possible you'll save on your fare as well.
What day of the week has the most flights from AUS to DEN?
Fly on a Friday if you're after the best choice of flights from Austin-Bergstrom Intl. Airport (AUS) to Denver Intl. Airport (DEN).
What is the earliest flight from Austin-Bergstrom Intl. Airport (AUS) to Denver Intl. Airport (DEN)?
Catch the earliest flight at around 5:50AM UTC-6, leaving from Austin-Bergstrom Intl. Airport (AUS). You'll be traveling for approximately 2h 15m, reaching Denver Intl. Airport (DEN) at approximately 7:05AM UTC-7.
How long does it take to fly from Austin-Bergstrom Intl. Airport (AUS) to Denver Intl. Airport (DEN)?
The average flight duration from AUS to DEN is 2 hours and 20 minutes, covering a total distance of 780 mi.
What airline has the least delays from AUS to DEN?
United Airlines has the strongest track record for on-time direct flights from Austin-Bergstrom Intl. Airport (AUS) to Denver Intl. Airport (DEN), with an on-time score of 82%. Use the Expedia App to look up your flight status before you leave and get notified of any changes.
What is the best time to fly from Austin-Bergstrom Intl. Airport (AUS) to Denver Intl. Airport (DEN)?
To reach Denver Intl. Airport (DEN) on schedule, select a flight that takes off from Austin-Bergstrom Intl. Airport (AUS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Denver from Austin-Bergstrom Intl. Airport (AUS)?
Explore your flight options from Austin-Bergstrom Intl. Airport (AUS) to Denver Intl. Airport (DEN). This is the only airport in Denver you can jet into if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Austin-Bergstrom Intl. Airport (AUS) to Denver Intl. Airport (DEN) last-minute?
Waiting until right before your break to book a flight from AUS to DEN often results in higher prices. While you may find some last-minute offers, they're not always guaranteed. Be flexible with your itinerary for the best chance of getting a bargain.
Is it cheaper to book an AUS to DEN flight and hotel package?
Compared with arranging hotels and flights separately, booking an AUS to DEN flight and hotel package with Expedia could result in significant savings. Better still, having everything in one easy place will take the hassle out of planning your trip. Just secure your flights and choose from our wide range of stays, then tailor your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Austin-Bergstrom Intl. Airport (AUS) to Denver Intl. Airport (DEN)?
In most cases, you can modify or cancel your AUS to DEN flight. However, additional fees may apply, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you want further details, go to our Customer Service portal.

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