Track the Buff Bus on the Transit App

Real-time location tracking for CU Boulder’s Buff Buses, RTD, HOP, B-cycle and more is available via the Transit app. The app also includes expected arrival times and service notifications. Download: From Google Play or the Apple Store.

Get Help with Transit

Bus Route Information

With 80 regional and local bus stops located on or adjacent to CU Boulder’s campus, travel is a breeze.

Bus Pass Information

Whether commuting from Denver or between campuses, your bus pass will get you on local and regional buses!

Electric Buses are here!

CU Boulder now has four battery electric Buff Buses thanks in part to a pair of U.S. Environmental Protection Agency Diesel Emissions Reduction Act grants. The four newest electric buses join the Buff Bus fleet, which currently comprises 26 diesel vehicles. 

Your Buff OneCard ID is now your transit pass

Your Buff OneCard ID is now the transit pass for all enrolled CU students and benefited employees. CU is no longer issuing CollegePasses or EcoPasses. If you have further questions or encounter problems with your card, contact

Your Buff OneCard gives you access to RTD bus and rail routes, including routes to Denver International Airport.