Cheap flights from Austin-Bergstrom International to Denver International from $119
Updated 2026-07-07
775 miles great-circle distance, typically flown in 1h 58m with 8 airlines operating direct service from Austin-Bergstrom International (AUS) to Denver International (DEN). Fares on this corridor stay relatively stable across the year — booking 4–8 weeks ahead and choosing a midweek departure typically secures the best price.
Flying from Austin-Bergstrom International
Austin-Bergstrom International sits about 5 miles southeast of downtown Austin on a former air force base. Southwest carries the most passengers, with American, Delta and United running large operations and British Airways, Lufthansa and KLM flying nonstop to Europe. The single Barbara Jordan Terminal is served by CapMetro Route 20 and the faster Route 100 Airport Flyer, reaching downtown in about 30 minutes for $1.25 — far below the roughly $30 rideshare fare. Fares spike around SXSW in March, ACL in October and the Formula 1 weekend, so avoid those windows for the lowest prices.
Arriving in Denver
Denver International is 25 miles northeast of downtown Denver — the most remote big-city airport in the US, deliberately sited to allow for unlimited expansion. The University of Colorado A Line commuter train runs from a dedicated station every 15 minutes to Union Station in 37 minutes for $10.50. Snow can disrupt operations from November through April; Denver fares are cheapest in shoulder seasons (April–May, September–October).
Who flies AUS to DEN?
| Airline | IATA | Flight time | Cabin |
| Southwest Airlines | WN | 1h 58m | Economy |
| American Airlines | AA | 1h 58m | Economy |
| Delta Air Lines | DL | 1h 58m | Economy |
| United Airlines | UA | 1h 58m | Economy |
| Spirit Airlines | NK | 1h 58m | Economy |
| Frontier Airlines | F9 | 1h 58m | Economy |
| JetBlue Airways | B6 | 1h 58m | Economy |
| Alaska Airlines | AS | 1h 58m | Economy |
8 carriers fly direct on this corridor. Frequencies vary by season — summer and winter holiday peaks see additional flights.
Austin to Denver FAQs
Direct flights from Austin-Bergstrom International (AUS) to Denver International (DEN) take approximately 1h 58m for the 775-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.
8 carriers operate direct service from Austin-Bergstrom International (AUS) to Denver International (DEN): Southwest Airlines, American Airlines, Delta Air Lines, United Airlines, Spirit Airlines and 3 more. Frequencies vary by season and carrier — Southwest 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.
Denver International (DEN) is the primary international airport for Denver. 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.