Cheap flights from Denver International to Austin-Bergstrom from $119
Updated 2026-05-27
776 miles great-circle distance, typically flown in 1h 58m with 6 airlines operating direct service from Denver International (DEN) to Austin-Bergstrom (AUS). Cheapest fares are usually in Jun (around $119 return), with peak prices in Jun (around $357). Departures on a Tuesday tend to undercut weekend prices on this corridor.
Flying from Denver International
Denver International sits 25 miles northeast of downtown Denver — a deliberately remote site that allows for six runways and almost unlimited expansion. The A Line commuter train runs every 15 minutes from the airport directly to Union Station downtown in 37 minutes for $10.50. United dominates the schedule with its largest non-Newark hub; Southwest and Frontier add heavy domestic capacity. Snow disruption is common between November and March, but the airport's ground-stop policy is faster than ORD's.
Arriving in Austin
Austin-Bergstrom International is 6 miles southeast of downtown Austin. CapMetro Route 20 runs every 30 minutes between the airport and downtown for $1.25. Fares to Austin peak sharply for South by Southwest (mid-March), the Austin City Limits Festival (early October) and University of Texas football weekends; January and late summer are the cheapest. ULCC carriers Spirit and Frontier run heavy capacity.
Who flies DEN to AUS?
| Airline | IATA | Flight time | Cabin |
| United Airlines | UA | 1h 58m | Economy |
| Southwest Airlines | WN | 1h 58m | Economy |
| Frontier Airlines | F9 | 1h 58m | Economy |
| Spirit Airlines | NK | 1h 58m | Economy |
| American Airlines | AA | 1h 58m | Economy |
| Delta Air Lines | DL | 1h 58m | Economy |
6 carriers fly direct on this corridor. Frequencies vary by season — summer and winter holiday peaks see additional flights.
Best time to fly DEN→AUS
Aggregated from 12 months of Travelpayouts fare data. Cheapest months in green, peak in red.
Source: Travelpayouts route data, refreshed every 30 days. Cheapest day-of-week typically Tuesday.
Denver to Austin FAQs
Direct flights from Denver International (DEN) to Austin-Bergstrom (AUS) take approximately 1h 58m for the 776-mile journey, plus 30–60 minutes of taxi, climb and descent. Total airport-to-airport time depends on cruise winds and air-traffic queueing on approach.
Jun is typically the cheapest month on this route, with one-way fares from $119. Jun is the peak — expect prices 2–3× higher. Book 4–8 weeks ahead for best fares; last-minute prices on this corridor rise sharply inside two weeks of departure.
6 carriers operate direct service from Denver International (DEN) to Austin-Bergstrom (AUS): United Airlines, Southwest Airlines, Frontier Airlines, Spirit Airlines, American Airlines and 1 more. Frequencies vary by season and carrier — United Airlines typically operates the highest weekly count on this corridor.
No — United States is domestic travel for US citizens. A US passport is not required for the 50 states, DC or US territories (Puerto Rico, US Virgin Islands, Guam, American Samoa, Northern Mariana Islands), though Real ID-compliant ID is required at TSA from May 2025.
Austin-Bergstrom (AUS) is the primary international airport for Austin. Allow 30–60 minutes for the ground transfer by train, express bus, taxi or rideshare depending on traffic and time of day. See the airport's official website for current train and shuttle timetables.