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)

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## Alternative airports near Denver

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

[](https://www.expedia.co.uk/Flights-Search?leg1=from:AUS,to:DEN,departure:24/03/2026TANYT&leg2=from:DEN,to:AUS,departure:28/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE)

DEN

Denver Intl.

Cheapest

32 min

[Flights from £406

](https://www.expedia.co.uk/Flights-Search?leg1=from:AUS,to:DEN,departure:24/03/2026TANYT&leg2=from:DEN,to:AUS,departure:28/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 

## 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)?

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## Travel information

| Origin airport      | Austin-Bergstrom Intl. |
| ------------------- | ---------------------- |
| Destination airport | Denver Intl.           |
| Airlines serving    | Alaska Airlines        |
| Popular airline     | Alaska Airlines        |
| Distance            | 1239 km                |
| Average flight time | 1 hour 18 mins         |

\*Available to Expedia members.