Title: Cheap Frontier Airlines flights from Austin to Denver (AUS→DEN) - Expedia.co.uk ![Denver Colorado downtown with City Park](https://images.trvl-media.com/place/178254/7cc57818-0302-43a8-831e-86e04b8cc6a7.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178254/7cc57818-0302-43a8-831e-86e04b8cc6a7.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Frontier Airlines flights from Austin to Denver (AUS→DEN) - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 25% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Find the cheapest month to fly from Austin (AUS) to Denver (DEN) ### January is typically the cheapest month to fly From £41 - £112 per traveller. ## Frequently asked questions ### How much is a Frontier Airlines flight from Austin-Bergstrom Intl. Airport (AUS) to Denver Intl. Airport (DEN)? ### What is the cheapest month to fly from AUS to DEN with Frontier Airlines? ### Does Frontier Airlines fly nonstop from Austin-Bergstrom Intl. Airport (AUS) to Denver Intl. Airport (DEN)? ### How long does it take to fly from AUS to DEN with Frontier Airlines? ### What airports does Frontier Airlines fly into in Denver? ### What type of plane does Frontier Airlines fly from Austin-Bergstrom Intl. Airport (AUS) to Denver Intl. Airport (DEN)? ### Can I change or cancel my Frontier Airlines flight from Austin-Bergstrom Intl. Airport (AUS) to Denver Intl. Airport (DEN)? ## Travel information | Origin airport | Austin-Bergstrom Intl. | | ------------------- | -------------------------------- | | Destination airport | Denver Intl. | | Airlines serving | Alaska Airlines, JetBlue Airways | | Popular airline | Alaska Airlines | | Distance | 1239 km | | Average flight time | 1 hour 18 mins | \*Available to Expedia members.