Denver International Airport
Participants flying to ASSW 2025 in Boulder, Colorado must fly into Denver International Airport (DIA/DEN), one of the world’s largest airline hubs. Boulder is located approximately 65 km from the DIA/DEN Airport. (Note: Boulder’s local airport is NOT an option for travel to Boulder; it is only a small airport, mainly for recreational pilots.)
The Denver International Airport Website has extensive information about airlines flying into Denver, bus service, car rentals, flight status updates, and security wait times.
Taking a Bus between Denver International Airport and Boulder
The most convenient and “green” option for getting to/from Denver International Airport and Boulder is the regional bus service (RTD): www.rtd-denver.com.
- View Skyride schedules for the AB1 bus route between the Airport and Boulder. This is the option that will work for most travelers. The bus is large, comfortable, and has free Wi-Fi. The cost is $10.50 one-way. The ride takes approximately one hour.
- View Flatiron Flyer schedules for Denver City/Boulder routes
Booking a Shuttle
Airport shuttle service to/from Denver International Airport and Boulder is also available, with the following most used options:
- Eight Black Airport Shuttle. Phone: +1-720-223-5474. Text: +1-720-853-2272
- SuperShuttle. Phone: 1-800-258-3826
Additional shuttle companies are listed here.
Renting a Car
Denver International Airport has more than 10 major rental car companies serving travelers. See the list of car rental companies here. Most car rental companies offer shuttle service from the airport to their local car lots. It is highly recommended to reserve a car in advance of your arrival. In addition to car rental companies, participants might also consider using car share companies, including eGo CarShare or Zipcar.
The car drive from the Airport to Boulder takes approximately 45 minutes if taking the toll highway (E 470) or 65 minutes if taking non-toll roads.
If renting a car, please be prepared for the possibility of winter driving, as driving conditions in March are highly variable. Please also familiarize yourself with traffic conditions, toll highways versus non-toll highways, and parking options. Depending on your hotel, hotel parking may be free or available at a daily rate. Paid parking will have limited availability at the conference venue (see parking information below).
Parking at the University of Colorado Boulder
Parking is by paid permit or credit card pay-to-park machines. Parking is very limited in and around campus so walking or bus transportation is advised. If you choose to park on campus, participants are responsible for reading and adhering to all posted parking policies and paying accordingly. Read all signage when entering a lot to ensure you are parking in the correct lot. Individual requirements exist for each lot based on day and time.
Visit the University's parking website for complete information: www.colorado.edu/pts.
Disability and Accessibility Parking:
Campus parking permits or paying at a meter are still required for those with disability placards or license plates. Visit the following website for more information: www.colorado.edu/pts/permits/ada-accessible-parking.