RTD Bus Service Changes Benefiting CU Boulder – Effective August 31

RTD has announced several service updates that will positively impact CU Boulder students, faculty, and staff. These changes, effective August 31, 2025, include expanded service and improved connections to key destinations:

Boulder Junction at Depot Square Station Reopens
RTD is reinstating service to Boulder Junction, bringing back key routes that connect Boulder to Denver and the airport.

AB2 – Boulder to Denver International Airport

• Weekday AB2 trips will now depart from Boulder Junction Depot Square Station instead of Downtown Boulder Station.
• Saturday service between Downtown Boulder and DIA will operate as AB3 to reduce confusion.

FF2 – Boulder to Downtown Denver Express

• New trips added:
  • Eastbound: 3 morning peak (7:00–8:30 a.m.), 2 afternoon peak (4:00–5:30 p.m.)
  • Westbound: 2 morning peak, 3 afternoon peak

FF4 – Boulder Junction to Civic Center Station

• Service reinstated with 8 peak-hour trips in each direction:
  • Morning: 7:00–8:30 a.m.
  • Afternoon: 4:00–5:30 p.m.
• Supports the reopening of Boulder Junction and RTD’s System Optimization Plan.

FF5 – Boulder to Anschutz Medical Campus

• Westbound afternoon/evening trips rerouted to avoid I-270 congestion. New route uses I-70 to I-25, then US 36.

View the full schedule and details for all upcoming changes here: https://app.rtd-denver.com/schedules/upcoming