Bus Route AB1 – Boulder / Denver Airport
Schedule | Fare Info | Free for Youth*
CU Boulder is about an hour away from the Denver International Airport (DIA) via the RTD SkyRide. Scheduled bus service between Denver Airport and CU Boulder runs about every hour.
Cost
Adults: $10.50 | Youth: Free *
* From September 1, 2023 – August 31, 2024, Youth 19 and under can just hop on board. To ride at no cost as part of this program, all you need to do is show one of the following to the bus operator or fare inspector: current school ID, valid government-issued ID, alien registration/permanent resident card, Military ID/dependent card with DOB, RTD-issued youth special discount card.
CU Boulder to Denver Airport (DIA)
Pick up at Broadway – Euclid (University of Colorado)
AB1 bus service from Boulder to DIA (eastbound) typically begins around 3:00 a.m. and runs through 9:00 p.m.
Denver Airport (DIA) to CU Boulder
Pick up the AB1 at the Transit Center which is located at the south end of the airport near the Westin Hotel.
Westbound service from Denver Airport to Boulder via the AB1 bus starts around 5:00 a.m. with the last bus departing DIA around 11:00 p.m.
NOTE: These times are approximate and Weekday, Saturday and Sunday/Holiday schedules apply. For exact times, please see the latest RTD schedule for the AB1 Bus.