$55 Cheap Frontier Airlines flights Denver (DEN) to Austin (AUS)

Set the “Price (lowest to highest)” filter on Expedia to find cheap Frontier Airlines round-trip flights from $105 from DEN to AUS. Affordable one-way options from $55 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.

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.

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.

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.

On average, it takes 2h 14m to fly nonstop from Denver Intl. Airport (DEN) to Austin-Bergstrom Intl. Airport (AUS) with Frontier Airlines.

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.

Austin-Bergstrom Intl. Airport (AUS) is the main Austin hub for Frontier Airlines flights from Denver Intl. Airport (DEN).

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.

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.

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.