$69 Cheap Frontier Airlines flights Denver (DEN) to Austin (AUS)

View $69 flight on Tue, Sep 9, 2025Opens in a new window

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$69 Cheap Frontier Airlines flights Denver (DEN) to Austin (AUS)

Prices were available within the past 7 days and start at $69 for one-way flights and $109 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, Aug 26 - Sat, Sep 6
DEN
Denver
AUS
Austin
$109 Roundtrip, found 2 days ago
$109
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, Aug 26 from Denver to Austin, returning Sat, Sep 6, priced at $109 found 2 days ago
Frontier Airlines
Tue, Oct 21 - Wed, Oct 29
DEN
Denver
AUS
Austin
$109 Roundtrip, found 6 hours ago
$109
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Tue, Oct 21 from Denver to Austin, returning Wed, Oct 29, priced at $109 found 6 hours ago
Frontier Airlines
Sat, Oct 25 - Sun, Oct 26
DEN
Denver
AUS
Austin
$111 Roundtrip, found 7 hours ago
$111
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Sat, Oct 25 from Denver to Austin, returning Sun, Oct 26, priced at $111 found 7 hours ago
Frontier Airlines
Sun, Nov 9 - Sun, Nov 16
DEN
Denver
AUS
Austin
$112 Roundtrip, found 4 days ago
$112
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Sun, Nov 9 from Denver to Austin, returning Sun, Nov 16, priced at $112 found 4 days ago
Frontier Airlines
Sat, Aug 23 - Sat, Sep 6
DEN
Denver
AUS
Austin
$114 Roundtrip, found 2 days ago
$114
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Aug 23 from Denver to Austin, returning Sat, Sep 6, priced at $114 found 2 days ago
Frontier Airlines
Wed, Oct 8 - Wed, Oct 15
DEN
Denver
AUS
Austin
$117 Roundtrip, found 8 hours ago
$117
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Wed, Oct 8 from Denver to Austin, returning Wed, Oct 15, priced at $117 found 8 hours ago
Flights from Denver (DEN) to Austin (AUS)
Origin airport
Denver Intl.
Destination airport
Austin-Bergstrom Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Popular airline
Frontier Airlines
Distance
774 mi
Average flight time
3 hours 9 mins

Frequently asked questions

How much is a Frontier Airlines flight from Denver Intl. Airport (DEN) to Austin-Bergstrom Intl. Airport (AUS)?
Set the "Price (lowest to highest)" filter on Expedia to find cheap Frontier Airlines round-trip flights from $109 from DEN to AUS. Affordable one-way options from $69 are available too.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from DEN to AUS with Frontier Airlines?
Frontier Airlines flights to Austin are typically more affordable in the low-season months of January and December. Whether you're in search of a one-way or a return ticket, you could land a better deal then.
What is the cheapest time to book flights from Denver Intl. Airport (DEN) to Austin-Bergstrom Intl. Airport (AUS) with Frontier Airlines?
To find cheap Frontier Airlines fares from Denver Intl. Airport (DEN) to Austin-Bergstrom Intl. Airport (AUS), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also impact the overall cost. Sunday is usually the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your trip on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Frontier Airlines fly nonstop from Denver Intl. Airport (DEN) to Austin-Bergstrom Intl. Airport (AUS)?
Frontier Airlines has direct flights from Denver Intl. Airport (DEN) to Austin-Bergstrom Intl. Airport (AUS), with 7 departures every week. Simply select the "Nonstop" and "Airline" filters during your search on Expedia to find all direct Frontier Airlines flights to AUS.
How long does it take to fly from DEN to AUS with Frontier Airlines?
On average, it takes 2h 14m to fly nonstop from Denver Intl. Airport (DEN) to Austin-Bergstrom Intl. Airport (AUS) with Frontier Airlines.
What is the earliest Frontier Airlines flight from DEN to AUS?
Departing DEN at 11:58AM UTC-7, the first Frontier Airlines flight to AUS arrives at 3:14PM UTC-6. Flying early means you'll be less likely to experience cancellations.* Prefer to travel later? The last Frontier Airlines flight from DEN to AUS departs at 4:12PM UTC-7 and touches down at 7:26PM UTC-6.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Frontier Airlines fly into in Austin?
Austin-Bergstrom Intl. Airport (AUS) is the main Austin hub for Frontier Airlines flights from Denver Intl. Airport (DEN).
Why fly with Frontier Airlines from DEN to AUS?
Travel from DEN to AUS with Frontier Airlines and you'll enjoy a range of benefits starting with a rewarding loyalty program. When booking through Expedia as a Frontier Miles and One Key™ member, you can also earn OneKeyCash™* to redeem on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does Frontier Airlines fly from Denver Intl. Airport (DEN) to Austin-Bergstrom Intl. Airport (AUS)?
You'll likely board an Airbus A321neo or an Airbus A320neo when flying Frontier Airlines from Denver Intl. Airport (DEN) to Austin-Bergstrom Intl. Airport (AUS). However, keep in mind that a different aircraft could be assigned to your route due to operational demands.
Can I change or cancel my Frontier Airlines flight from Denver Intl. Airport (DEN) to Austin-Bergstrom Intl. Airport (AUS)?
You can usually modify or cancel your flight, although there may be additional charges if you made your booking more than 24 hours ago. Need flexible options? Use Expedia's "Changes included" or "No cancel fee" filter to find flights that won't charge you extra if you need to adjust your plans. To make changes, go to "Trips," select your flight and click on "Manage Booking" for more details.
*Available to One Key members.