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Flights from Denver to Austin

Search for direct flights from Denver to Austin in the next 3 months. Based on Trip.com's latest 7-day flight data, one-way direct flights start at US$29, and round-trip direct flights start at US$58.

      • Cheapest nonstop
        DEN 06:30
        2h 13m
        Nonstop
        AUS 09:43
        Denver - Austin | Thu, Jun 4 | Frontier Airlines
        AUS 10:28
        2h 39m
        Nonstop
        DEN 12:07
        Austin - Denver | Mon, Jun 8 | Frontier Airlines
        US$58 US$194
        70% off
        70% off
        US$194 US$58
      • DEN 20:46
        2h 13m
        Nonstop
        AUS 23:59
        Denver - Austin | Fri, Jun 19 | Frontier Airlines
        AUS 06:30
        2h 25m
        Nonstop
        DEN 07:55
        Austin - Denver | Sun, Jun 21 | Frontier Airlines
        US$92 US$194
        53% off
        53% off
        US$194 US$92
      • DEN 20:46
        2h 13m
        Nonstop
        AUS 23:59
        Denver - Austin | Wed, Jul 1 | Frontier Airlines
        AUS 20:15
        2h 29m
        Nonstop
        DEN 21:44
        Austin - Denver | Tue, Jul 7 | Frontier Airlines
        US$93 US$194
        52% off
        52% off
        US$194 US$93
      • DEN 20:52
        2h 15m
        Nonstop
        AUS 00:07
        Denver - Austin | Wed, Jul 8 | Frontier Airlines
        AUS 06:30
        2h 19m
        Nonstop
        DEN 07:49
        Austin - Denver | Sun, Jul 12 | Frontier Airlines
        US$93
        52% off
        US$194 US$93
      • DEN 17:00
        2h 18m
        Nonstop
        AUS 20:18
        Denver - Austin | Thu, May 28 | Frontier Airlines
        AUS 21:13
        2h 48m
        Nonstop
        DEN 23:01
        Austin - Denver | Sun, May 31 | Frontier Airlines
        US$93
        52% off
        US$194 US$93
      • DEN 09:38
        2h 20m
        Nonstop
        AUS 12:58
        Denver - Austin | Thu, Jun 4 | Delta Air Lines
        AUS 10:28
        2h 39m
        Nonstop
        DEN 12:07
        Austin - Denver | Mon, Jun 8 | Frontier Airlines
        US$114
        41% off
        US$194 US$114
      • DEN 06:30
        2h 13m
        Nonstop
        AUS 09:43
        Denver - Austin | Fri, Jun 5 | Frontier Airlines
        AUS 21:13
        2h 48m
        Nonstop
        DEN 23:01
        Austin - Denver | Mon, Jun 8 | Frontier Airlines
        US$123
        37% off
        US$194 US$123
      • DEN 19:30
        2h 20m
        Nonstop
        AUS 22:50
        Denver - Austin | Wed, Jul 1 | Delta Air Lines
        AUS 06:30
        2h 19m
        Nonstop
        DEN 07:49
        Austin - Denver | Tue, Jul 7 | Frontier Airlines
        US$124
        36% off
        US$194 US$124
      • DEN 06:00
        2h 13m
        Nonstop
        AUS 09:13
        Denver - Austin | Sat, Jun 20 | Frontier Airlines
        AUS 09:58
        2h 34m
        Nonstop
        DEN 11:32
        Austin - Denver | Mon, Jun 22 | Frontier Airlines
        US$129
        34% off
        US$194 US$129
      • DEN 15:50
        2h 40m
        Nonstop
        AUS 19:30
        Denver - Austin | Sun, Jun 28 | Frontier Airlines
        AUS 06:30
        2h 25m
        Nonstop
        DEN 07:55
        Austin - Denver | Fri, Jul 3 | Frontier Airlines
        US$139
        28% off
        US$194 US$139
      • DEN 13:00
        17h 25m
        1 stop
        AUS 14:00
        Denver - Austin | Sat, May 23 | Normal Airline
        AUS 15:00
        6h
        Nonstop
        DEN 16:00
        Austin - Denver | Mon, May 25 | Normal Airline
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      • Cheapest nonstop
        DEN 20:46
        2h 13m
        Nonstop
        AUS 23:59
        Denver - Austin | Tue, Jun 9 | Frontier Airlines
        US$29 US$49
        41% off
        41% off
        US$49 US$29
      • DEN 20:46
        2h 13m
        Nonstop
        AUS 23:59
        Denver - Austin | Wed, Jul 1 | Frontier Airlines
        US$29 US$49
        41% off
        41% off
        US$49 US$29
      • DEN 06:30
        2h 13m
        Nonstop
        AUS 09:43
        Denver - Austin | Thu, Jun 4 | Frontier Airlines
        US$29 US$49
        41% off
        41% off
        US$49 US$29
      • DEN 15:50
        2h 40m
        Nonstop
        AUS 19:30
        Denver - Austin | Sat, Jun 20 | Frontier Airlines
        US$29
        41% off
        US$49 US$29
      • DEN 20:46
        2h 13m
        Nonstop
        AUS 23:59
        Denver - Austin | Wed, Jun 10 | Frontier Airlines
        US$29
        41% off
        US$49 US$29
      • DEN 17:00
        2h 18m
        Nonstop
        AUS 20:18
        Denver - Austin | Sat, May 23 | Frontier Airlines
        US$29
        41% off
        US$49 US$29
      • DEN 20:46
        2h 13m
        Nonstop
        AUS 23:59
        Denver - Austin | Wed, Jun 17 | Frontier Airlines
        US$30
        39% off
        US$49 US$30
      • DEN 20:46
        2h 13m
        Nonstop
        AUS 23:59
        Denver - Austin | Thu, Jun 18 | Frontier Airlines
        US$30
        39% off
        US$49 US$30
      • DEN 06:30
        2h 13m
        Nonstop
        AUS 09:43
        Denver - Austin | Wed, May 27 | Frontier Airlines
        US$35
        28% off
        US$49 US$35
      • DEN 06:30
        2h 13m
        Nonstop
        AUS 09:43
        Denver - Austin | Fri, May 29 | Frontier Airlines
        US$35
        28% off
        US$49 US$35
      • DEN 13:00
        17h 25m
        1 stop
        AUS 14:00
        Denver - Austin | Sat, May 23 | Normal Airline
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Displayed flight fares from Denver to Austin are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Trip.com Price Insights on Flights from Denver to Austin

Which month has the cheapest one-way flights from to Austin?

Average monthly one-way flight prices from to Austin, based on bookings made by Trip.com users over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from to Austin is December, with an average price of US$108; while the month with the highest flight price is usually October, with an average price of up to US$223.

US$223
US$166
US$108
US$51
    Cheapest
  • US$176
    May
  • US$141
    Jun
  • US$147
    Jul
  • US$127
    Aug
  • US$140
    Sep
  • US$223
    Oct
  • US$214
    Nov
  • US$108
    Dec
  • US$120
    Jan
  • US$154
    Feb
  • US$207
    Mar
  • US$188
    Apr

Frequently Asked Questions

  • What are the cheapest flights from Denver to Austin (DEN-AUS)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as US$29 on Cheapest nonstop routes (e.g. DEN to AUS on Tue, Jun 9), while Frontier Airlines offers Cheapest nonstop round-trips from US$58 departing on Thu, Jun 4 and returning on Mon, Jun 8.
  • At the moment, you can catch a nonstop flight from Denver to Austin with the following airlines, including: United Airlines Frontier Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 2 hours 17 minutes to fly from Denver to Austin.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Denver to Austin 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.
  • To find best deals on flights from Denver to Austin, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Jun 9, with one-way flights priced at just US$29.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Austin travel is around January.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Denver to Austin is November, when demand for travel is lower.
  • After crunching the numbers on our May flight calendar, it's currently cheapest to fly from Denver to Austin on May 28, 2026 with Frontier Airlines, with prices starting at US$56.
  • You can land at any one of the following hubs in Austin, with Denver International Airport to Austin-Bergstrom International Airport (DEN-AUS) is by far the most common option on this route: Austin-Bergstrom International Airport (AUS).
  • The time difference between Austin and Denver 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

Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.