Trip.com
>
Flights
>
Flights to United States
>
Flights to Colorado
>
Flights to Denver
Hotels in Denver
>
Flights from Austin to Denver

Cheapest airlines flights from Austin to Denver

Fly from Austin to Denver with 1 carriers, including Frontier Airlines, Frontier Airlines offers the cheapest flights from Austin to Denver.
Frontier Airlines logo Frontier Airlines

Non stop flights available! Find direct flights from Austin to Denver for the next 3 months. Book one way flights from US$20 or round trip tickets from US$37.

      • Cheapest nonstop
        AUS 06:45
        2h 25m
        Nonstop
        DEN 08:10
        Austin - Denver | Wed, Dec 3 | Frontier Airlines
        DEN 20:00
        2h 12m
        Nonstop
        AUS 23:12
        Denver - Austin | Wed, Dec 3 | Frontier Airlines
        US$37 US$116
        68% OFF
        68% OFF
        US$116 US$37
      • AUS 14:44
        2h 26m
        Nonstop
        DEN 16:10
        Austin - Denver | Mon, Jan 5 | Frontier Airlines
        DEN 21:00
        2h 14m
        Nonstop
        AUS 00:14
        Denver - Austin | Thu, Jan 8 | Frontier Airlines
        US$50 US$116
        56% OFF
        56% OFF
        US$116 US$50
      • AUS 06:45
        2h 25m
        Nonstop
        DEN 08:10
        Austin - Denver | Thu, Dec 18 | Frontier Airlines
        DEN 21:00
        2h 14m
        Nonstop
        AUS 00:14
        Denver - Austin | Sun, Dec 21 | Frontier Airlines
        US$56 US$116
        52% OFF
        52% OFF
        US$116 US$56
      • AUS 14:56
        2h 26m
        Nonstop
        DEN 16:22
        Austin - Denver | Fri, Jan 9 | Frontier Airlines
        DEN 21:00
        2h 14m
        Nonstop
        AUS 00:14
        Denver - Austin | Fri, Jan 9 | Frontier Airlines
        US$58
        50% OFF
        US$116 US$58
      • AUS 08:45
        2h 27m
        Nonstop
        DEN 10:12
        Austin - Denver | Tue, Jan 6 | Frontier Airlines
        DEN 18:38
        2h 15m
        Nonstop
        AUS 21:53
        Denver - Austin | Tue, Jan 13 | Frontier Airlines
        US$59
        49% OFF
        US$116 US$59
      • AUS 06:55
        2h 25m
        Nonstop
        DEN 08:20
        Austin - Denver | Tue, Dec 9 | Frontier Airlines
        DEN 20:00
        2h 12m
        Nonstop
        AUS 23:12
        Denver - Austin | Tue, Dec 16 | Frontier Airlines
        US$60
        49% OFF
        US$116 US$60
      • AUS 06:45
        2h 25m
        Nonstop
        DEN 08:10
        Austin - Denver | Thu, Jan 8 | Frontier Airlines
        DEN 18:38
        2h 15m
        Nonstop
        AUS 21:53
        Denver - Austin | Tue, Jan 13 | Frontier Airlines
        US$61
        48% OFF
        US$116 US$61
      • AUS 06:55
        2h 25m
        Nonstop
        DEN 08:20
        Austin - Denver | Sat, Dec 6 | Frontier Airlines
        DEN 21:00
        2h 14m
        Nonstop
        AUS 00:14
        Denver - Austin | Sat, Dec 6 | Frontier Airlines
        US$61
        47% OFF
        US$116 US$61
      • AUS 06:55
        2h 25m
        Nonstop
        DEN 08:20
        Austin - Denver | Tue, Dec 16 | Frontier Airlines
        DEN 21:00
        2h 14m
        Nonstop
        AUS 00:14
        Denver - Austin | Fri, Dec 19 | Frontier Airlines
        US$76
        34% OFF
        US$116 US$76
      • AUS 08:45
        2h 27m
        Nonstop
        DEN 10:12
        Austin - Denver | Sat, Jan 10 | Frontier Airlines
        DEN 21:00
        2h 14m
        Nonstop
        AUS 00:14
        Denver - Austin | Mon, Jan 12 | Frontier Airlines
        US$93
        20% OFF
        US$116 US$93
      • AUS 13:00
        17h 25m
        1 stop
        DEN Invalid Date
        Austin - Denver | Sat, Nov 15 | Normal Airline
        DEN 15:00
        6h
        Nonstop
        AUS 16:00
        Denver - Austin | Mon, Nov 17 | Normal Airline
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Austin to Denver Flight Information

The distance between Austin and Denver is approximately 1,233.22 km. On average, a flight from Austin to Denver takes around 2 hours 34 minutes. The most popular month to fly to Denver is July. The off-season for travel is October.

Cheapest one-way flight priceUS$20
Cheapest return ticket priceUS$37
Cheapest monthOctober
Peak season for travelJuly
Flight distance1,233.22 km
Average flight time2 hours 34 minutes
Popular airlineFrontier Airlines

When is the cheapest time to book flights from Austin to Denver?

Best time for cheap flights from Austin to Denver are between Dec 28 and Jan 4 with one way fares from US$20

Cheapest flights
From price
Search
  • 916
  • 1623
  • 2330

  • Dec

    307
  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • How long is a flight from Austin to Denver?

    It takes about 2 hours 34 minutes to fly from Austin to Denver.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Austin to Denver is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • The cheapest months to fly from Austin to Denver is October, when demand for travel is lower.
  • After crunching the numbers on our November flight calendar, it's currently cheapest to fly from Austin to Denver on November 15, 2025 with Frontier Airlines, with prices starting at US$71.
  • The time difference between Denver and Austin is 1h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Explore More Popular Flights