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Flights from Denver to Austin

Find cheap airlines flights from Denver to Austin

You can choose from 3 airlines that fly from Denver to Austin, including Frontier Airlines, Delta Air Lines, and United Airlines. Frontier Airlines has lowest fares on this route.
Frontier Airlines logo Frontier Airlines
Delta Air Lines logo Delta Air Lines
United Airlines logo United Airlines
Airlines are determined based on actual purchased flight tickets from Denver to Austin according to previous 12 months data from Trip.com.

Book direct flights from Denver to Austin: One way flights from $29, round trip flights from $71. Find flight deals for the next 3 months below.

      • Cheapest nonstop
        DEN 6:45 AM
        2h 20m
        Nonstop
        AUS 10:05 AM
        Denver - Austin | Sun, Apr 12 | Frontier Airlines
        AUS 1:00 PM
        2h 29m
        Nonstop
        DEN 2:29 PM
        Austin - Denver | Tue, Apr 14 | Frontier Airlines
        $71 $145
        51% off
        51% off
        $145 $71
      • DEN 9:00 PM
        2h 21m
        Nonstop
        AUS 12:21 AM
        Denver - Austin | Wed, May 6 | Frontier Airlines
        AUS 6:45 AM
        2h 24m
        Nonstop
        DEN 8:09 AM
        Austin - Denver | Sun, May 10 | Frontier Airlines
        $74 $145
        49% off
        49% off
        $145 $74
      • DEN 9:00 PM
        2h 21m
        Nonstop
        AUS 12:21 AM
        Denver - Austin | Wed, Apr 22 | Frontier Airlines
        AUS 6:45 AM
        2h 24m
        Nonstop
        DEN 8:09 AM
        Austin - Denver | Mon, Apr 27 | Frontier Airlines
        $75 $145
        48% off
        48% off
        $145 $75
      • DEN 6:45 AM
        2h 20m
        Nonstop
        AUS 10:05 AM
        Denver - Austin | Mon, Apr 13 | Frontier Airlines
        AUS 6:13 PM
        2h 31m
        Nonstop
        DEN 7:44 PM
        Austin - Denver | Wed, Apr 15 | Frontier Airlines
        $77
        47% off
        $145 $77
      • DEN 5:00 PM
        2h 18m
        Nonstop
        AUS 8:18 PM
        Denver - Austin | Fri, May 8 | Frontier Airlines
        AUS 9:13 PM
        2h 48m
        Nonstop
        DEN 11:01 PM
        Austin - Denver | Mon, May 11 | Frontier Airlines
        $79
        46% off
        $145 $79
      • DEN 5:29 PM
        2h 23m
        Nonstop
        AUS 8:52 PM
        Denver - Austin | Mon, Apr 27 | Frontier Airlines
        AUS 9:47 PM
        2h 28m
        Nonstop
        DEN 11:15 PM
        Austin - Denver | Mon, May 4 | Frontier Airlines
        $90
        38% off
        $145 $90
      • DEN 9:00 PM
        2h 21m
        Nonstop
        AUS 12:21 AM
        Denver - Austin | Fri, Apr 17 | Frontier Airlines
        AUS 6:45 AM
        2h 24m
        Nonstop
        DEN 8:09 AM
        Austin - Denver | Sun, Apr 19 | Frontier Airlines
        $91
        37% off
        $145 $91
      • DEN 4:35 PM
        2h 20m
        Nonstop
        AUS 7:55 PM
        Denver - Austin | Sat, May 2 | Frontier Airlines
        AUS 9:13 PM
        2h 48m
        Nonstop
        DEN 11:01 PM
        Austin - Denver | Tue, May 5 | Frontier Airlines
        $96
        34% off
        $145 $96
      • DEN 5:00 PM
        2h 18m
        Nonstop
        AUS 8:18 PM
        Denver - Austin | Sun, May 10 | Frontier Airlines
        AUS 9:13 PM
        2h 48m
        Nonstop
        DEN 11:01 PM
        Austin - Denver | Wed, May 13 | Frontier Airlines
        $111
        23% off
        $145 $111
      • DEN 5:13 PM
        2h 23m
        Nonstop
        AUS 8:36 PM
        Denver - Austin | Thu, Apr 30 | Frontier Airlines
        AUS 9:47 PM
        2h 28m
        Nonstop
        DEN 11:15 PM
        Austin - Denver | Mon, May 4 | Frontier Airlines
        $123
        15% off
        $145 $123
      • DEN 1:00 PM
        17h 25m
        1 stop
        AUS Invalid Date
        Denver - Austin | Mon, Apr 13 | Normal Airline
        AUS 3:00 PM
        6h
        Nonstop
        DEN 4:00 PM
        Austin - Denver | Wed, Apr 15 | Normal Airline
        Find more flights
        Find more flights
      • Cheapest nonstop
        DEN 5:00 PM
        2h 18m
        Nonstop
        AUS 8:18 PM
        Denver - Austin | Wed, May 20 | Frontier Airlines
        $29 $55
        47% off
        47% off
        $55 $29
      • DEN 5:00 PM
        2h 18m
        Nonstop
        AUS 8:18 PM
        Denver - Austin | Tue, May 5 | Frontier Airlines
        $29 $55
        47% off
        47% off
        $55 $29
      • DEN 9:00 PM
        2h 21m
        Nonstop
        AUS 12:21 AM
        Denver - Austin | Wed, May 6 | Frontier Airlines
        $29 $55
        47% off
        47% off
        $55 $29
      • DEN 9:00 PM
        2h 21m
        Nonstop
        AUS 12:21 AM
        Denver - Austin | Sat, May 9 | Frontier Airlines
        $30
        45% off
        $55 $30
      • DEN 9:00 PM
        2h 21m
        Nonstop
        AUS 12:21 AM
        Denver - Austin | Tue, May 12 | Frontier Airlines
        $30
        45% off
        $55 $30
      • DEN 9:00 PM
        2h 21m
        Nonstop
        AUS 12:21 AM
        Denver - Austin | Wed, May 13 | Frontier Airlines
        $30
        45% off
        $55 $30
      • DEN 5:13 PM
        2h 23m
        Nonstop
        AUS 8:36 PM
        Denver - Austin | Thu, Apr 30 | Frontier Airlines
        $30
        45% off
        $55 $30
      • DEN 2:00 PM
        2h 18m
        Nonstop
        AUS 5:18 PM
        Denver - Austin | Wed, Apr 15 | Frontier Airlines
        $30
        45% off
        $55 $30
      • DEN 9:00 PM
        2h 21m
        Nonstop
        AUS 12:21 AM
        Denver - Austin | Thu, May 7 | Frontier Airlines
        $46
        16% off
        $55 $46
      • DEN 9:00 PM
        2h 21m
        Nonstop
        AUS 12:21 AM
        Denver - Austin | Mon, May 11 | Frontier Airlines
        $46
        16% off
        $55 $46
      • DEN 1:00 PM
        17h 25m
        1 stop
        AUS Invalid Date
        Denver - Austin | Mon, Apr 13 | Normal Airline
        Find more flights
        Find more flights

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.

Flight Info | Denver to Austin

The distance between Denver and Austin is approximately 1,233.22 km. It takes around 2 hours 21 minutes on average to fly from Denver to Austin. Based on Trip.com's data travel demand peaks in January. The off-season for travel is November.

Cheapest one-way flight price$29
Cheapest round-trip ticket price$71
Off-season for travelNovember
Peak season for travelJanuary
Flight distance1,233.22 km
Average flight time2 hours 21 minutes
Popular airlineFrontier Airlines
Flight statistics for the Denver–Austin route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com price insights on flights from Denver to Austin

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

The average price of one-way flights from Denver to Austin purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Denver to Austin is April, with an average price of $79; while the month with the highest flight price is usually October, with an average price of up to $222.

$222
$151
$79
$8
  • $79
    Apr
  • $161
    May
  • $141
    Jun
  • $146
    Jul
  • $127
    Aug
  • $139
    Sep
  • $222
    Oct
  • $213
    Nov
  • $108
    Dec
  • $120
    Jan
  • $153
    Feb
  • $206
    Mar

When is the cheapest day to fly from Denver to Austin during TWICE <THIS IS FOR> WORLD TOUR IN AUSTIN?

Data is based on the lowest one-way price from Denver to Austin during TWICE WORLD TOUR IN AUSTIN on Trip.com in the past 3 days.

TWICE <THIS IS FOR> WORLD TOUR IN AUSTIN is scheduled for Apr 17. The cheapest flights from Denver to Austin are available on Apr 15, with fares starting at $35.

$87
$61
$35
$9
  • $86
    14
    Apr
  • $35
    15
  • $87
    16
  • $47
    17
  • $77
    18
  • $85
    19

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 $29 on Cheapest nonstop routes (e.g. DEN to AUS on Wed, May 20), while Frontier Airlines offers Cheapest nonstop round-trips from $71 departing on Sun, Apr 12 and returning on Tue, Apr 14.
  • At the moment, you can catch a nonstop flight from Denver to Austin with the following airlines, including: Frontier Airlines Delta Air Lines United Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes around 2 hours 21 minutes to fly from Denver (DEN) to Austin (AUS).
  • 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.
  • Based on Trip.com data in the past 4 weeks, there is 52 flight per week flying from Denver to Austin. You can check the weekly schedule for popular airlines on this route below: Delta Air Lines: S/M/T/W/T/F/S -- DL3876 (10:03) United Airlines: S/M/T/W/T/F/S -- UA1026 (10:08)
  • 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 Wed, May 20, with one-way flights priced at just $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 April flight calendar, it's currently cheapest to fly from Denver to Austin on April 13, 2026 with Frontier Airlines, with prices starting at $58.
  • 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.

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

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Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
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.
Cancellation/change due to a flight schedule change:
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.