Bus Routes and Schedules
Rider Announcements
- No Buff service to/from Williams Village from Thursday, Dec. 19 through Wed. Jan. 8.
- Late night service on is offered throughout the spring semester when classes are in session on Thursday, Friday and Saturday evenings from 11pm - 1am. Late night service from WillVill to main campus is provided by Via Mobility Services (small black buses which say VIA on them, not larger Buff Buses).
Spring 2025 Bus Routes and Schedules
This map is not fully accessible for users who employ screen readers.If you use assistive technology and need information on Buff Bus routes or schedules please call 303-492-7152 for assistance.
operates Monday - Friday, 7am - 3pm (approximately 12 minutes between buses) throughout the fall and spring semesters when classes are in session. There is no summer, fall or winter break service. The route runs clockwise with stops at Williams Village, Engineering Center, C4C, Physics, Math and babyÖ±²¥app/30th Southside. After 3pm Route W and Route B provides service.
Schedule
Spring 2025
- Regular Spring Buff Bus service begins Monday January 13
- No service on Mon. Jan. 20 (MLK, Jr. Holiday - campus closed)
- Regular service ends Thursday, May 1 at 11pm
Spring Break 2025:
- Regular service ends Friday, March 21 at 11pm
- No Buff service from Saturday, March 22 through Saturday, March 29
- Regular service resumes Monday, April 1
Summer 2025
- No Buff Bus service starting Thursday, May 8 through the summer
Late night service on Route W is offered Thursday, Friday and Saturday evenings from 11pm - 1am. Late night service from WillVill to main campus is provided by Via Mobility Services (small black buses which say VIA on them, not larger Buff Buses).
- There will be no late night service on January 9, 10 or 11.
- Late night service ends Saturday, May 3.
- There will be no late night service through the summer
operates throughout the fall and spring semesters when classes are in session from Monday through Friday 3pm - 11pm (approximately 10-15 minutes between buses) and Saturday and Sunday 10am - 11pm (approximately 30 minutes between buses). There is no summer service. The route runs clockwise with stops at Bear Creek, Williams Village, Engineering Center, C4C, Music, Physics, Math and babyÖ±²¥app/30th Southside. Service before 3pm is available via Route B or Route WL. Late night service on Route W is offered Thursday, Friday and Saturday evenings from 11pm - 1am. Late night service from WillVill to main campus is provided by Via Mobility Services (small black buses which say VIA on them, not larger Buff Buses).
Schedule
Spring 2025
- Spring Welcome (limited) Buff Bus Service will run Thurs. Jan 9, 10am - 11pm and Friday, Jan. 10 from 8am - 11pm.
- Regular Spring Buff Bus service begins on Saturday, January 11.
- No service on Mon. Jan. 20 (MLK, Jr. Holiday - campus closed)
- Regular service ends Thursday, May 1 at 11pm
Spring Break 2025:
- Regular service ends Friday, March 21 at 11pm
- No Buff Bus service from Saturday, March 22 through Saturday, March 29
- Regular service resumes Sunday, March 30
Spring Finals 2025:
- Finals service begins Friday, May 2 and continues through Wednesday, May 7 at 11pm
Summer 2025
- No Buff Bus service starting Thursday, May 8 through the summer
operates Monday - Friday from 7am - 3pm (approximately 12 minutes between buses) throughout the fall and spring semesters when classes are in session. There is no summer service. The route runs out and back from Bear Creek directly to UMC/Case with no other stops. After 3pm Route W provides service.
Schedule
Spring 2025
- Regular Spring Buff Bus service begins on Monday, Jan. 13
- No service on Mon. Jan. 20 (MLK, Jr. Holiday - campus closed)
- Regular service ends Thursday, May 1.
Spring Break 2025:
- Regular service ends Friday, March 21
- No Buff Bus service from Saturday, March 22 through Saturday, March 29
- Regular service resumes Monday, April 1
Spring Finals 2025:
- Finals service is offered only on Route W and begins Friday, May 2 and continues through Wednesday, May 7 at 11pm
Summer 2025
- No Route B service starting Thursday, May 1 through the summer
Route RX connects Williams Village to the Buff Bus Plaza near Folsom Field on Main Campus. This route runs Monday through Thursday, leaving Williams Village (Darley stop) at 5:45am and arriving at the Buff Plaza in front of Folsom Field by 6am. There are two stops on this route, one at Williams Village (Darley stop) and one at the Buff Plaza in front of Folsom Field. There is no Friday, Saturday or Sunday service.
Schedule
Spring 2025
- Regular Spring Buff Bus service begins on Monday, Jan. 13
- No service on Mon. Jan. 20 (MLK, Jr. Holiday - campus closed)
- Regular service ends Thursday, May 1
Spring Break 2025:
- Regular service ends Friday, March 21 at 11pm
- No Buff Bus service from Saturday, March 22 through Saturday, March 29
- Regular service resumes Monday, April 1
Summer 2025
- No Buff Bus service starting Thursday, May 8 through the summer
connects Williams Village to the Discovery Drive area of East Campus. This route runs Tuesdays and Thursdays from 3:40pm-7:40pm (last pickup at Aerospace) and Mondays and Wednesdays from 8:20am - 3:10pm (last pickup at Aerospace). There are two stops on this route, one at Williams Village and one at the SEEC building. Route ECX: Discovery operates Monday through Thursday when classes are in session as detailed below. There is no Friday, Saturday or Sunday service.
Schedule
Spring 2025
- Regular Spring Buff Bus service begins on Monday, Jan. 13
- No service on Mon. Jan. 20 (MLK, Jr. Holiday - campus closed)
- Regular service ends Thursday, May 1
Spring Break 2025:
- Regular service ends Thursday, March 20
- No Buff Bus service from Friday, March 21 through Saturday, March 29
- Regular service resumes Monday, April 1
Summer 2025
- No Buff Bus service starting Friday, May 9 through the summer
connects Main Campus to the Discovery Drive area of East Campus. Stampede operates throughout the year, Monday through Friday from 7am - 10:45pm (approximately 15 minutes between buses, 30 minutes between buses in the late evenings). There is no Saturday or Sunday service.
Schedule
Spring and Summer 2025:
- Monday through Friday from 7am - 10:45pm (approximately 15 mins between buses, 30 minutes between buses in the late evenings)
- Saturday - Sunday: no service
- Campus holidays: no service
is a campus shuttle route connecting the Marine Street and Exposition Drive areas of East Campus to Main Campus. This route serves two stops along Marine Street, one at the CINC building on Exposition Drive, and three on Main Campus: the Engineering Center/Lot 436, the Center for Community (C4C) and 18th Street (just south of Euclid Ave). Marine Street operates Monday through Friday from 9:15am - 3pm (approximately 45 minutes between buses). There is no Saturday or Sunday service.
Schedule
Spring 2025:
- Service begins Monday, January 13, 2025
- Monday through Friday from 9:15am - 3pm (approximately 45 mins between buses)
- Saturday - Sunday: no service
Summer 2025
- Service ends Friday, May 2
- No service through the summer
On home football game days, Buff Buses run on slightly altered routes to accommodate game day traffic and parking. For weekend (Saturday game days), Buff Buses run the Weekend Football game day re-route (click to view the weekend game day route map). For weekday games (Monday through Friday game days), Buff Buses run the Weekday football game day re-route (click to view the weekday football game day route map).
On home basketball game days, Buff Buses run on slightly altered routes to accommodate game day traffic and parking.
Complimentary Buff Bus shuttle bus service will be available from 7:00 a.m. to 4:30 p.m. on Thursday, May 8, 2025 (in 15 minute intervals) to provide transportation from the public parking areas to the Stadium before the Commencement Ceremony, and from the stadium back to the parking areas after the ceremony:
- Regent Shuttle: Lot 436/Regent Parking Garage, Buffalo Walk, Technology Learning Ctr., Center for Community/Regent Hall, CU Events Center
- East Campus/Discovery Express: SEEC building, Space Science, Biotech, Buffalo Walk
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 or the .
Buff Bus FAQs
On the day you lost the item, you may check with any Buff Bus driver to see if the item has been turned in. Found items are turned into Transportation Services' main office at 3205 Marine St. at the end of each day. Call us at 303-735-6244. Found items will be kept for 30 days, after which all unclaimed items will be donated or discarded.
- No alcohol, smoking, drugs or illegal activities
- No pets, bicycles or flammables
- Drivers will not stop at unauthorized locations
- For your safety, do not chase after the bus
- Be courteous to the drivers and other passengers
- Listen to the drivers
- Stay behind the yellow standing line
- Allow passengers to unload before boarding
- Use trash receptacles
Buff Buses are available for charter to CU affiliated groups and non-profits. All Buff Buses are ADA compliant and rental rates include a professional driver. There are three bus sizes available to accommodate from 22-59 passengers. For information on who is eligible to charter a Buff Bus and rental rates, please visit our Buff Bus Charter webpage.
The buses will continue to operate during inclement weather, however, severe weather conditions that cause the university to close, may impact Buff Bus service. Give yourself extra time to get to your destination as road conditions and traffic may make the ride take longer than usual. Under certain conditions the Buff Bus may need to take alternate routes. Download the Transit app to stay updated on delays and reroutes.
There is no Buff Bus service on Labor Day, fall break, winter break, Martin Luther King Jr. Day, spring break, or Memorial Day. Williams Village/Bear Creek and Marine Street Express buses do not run over summer break. Stampede buses run through summer break with one exception: there is no service on the 4th of July holiday.
There is no Buff Bus service on Labor Day, fall break, winter break, Martin Luther King Jr. Day, spring break, Juneteenth and summer break. Route S: Stampede runs through summer break. Real-time Buff Bus tracking for all routes is available via the Transit app.
City and Regional Routes
A variety of local transit routes connect campus with key Boulder locations. For hours, schedules and route details, or use to plan your commute.
Key Bus Routes
- HOP - Twenty Ninth Street Retail District, Downtown, and University Hill
- SKIP - Broadway Avenue
- JUMP - Arapahoe Avenue
- BOUND - 30th Street
- DASH - Table Mesa Drive / South Boulder
Don’t see a route for you? See the , or for more options.
The Flatiron Flyer (FF) is RTD’s Bus Rapid Transit service along Highway 36. For specific routes, schedules and details, .
With one stop adjacent to CU Boulder at 16th and Broadway, the SkyRide leaves hourly from Boulder Station. Free with an EcoPass or College Pass. Visit for more details.
If you are commuting to Longmont the following bus services provide the best options. Visit the or use to plan your commute.
- 205 - Boulder to Gunbarrel
- BOLT - Longmont via 28th then Diagonal Hwy
- - Fort Collins - Loveland - Longmont - Boulder
- service is provided by TransFort out of Fort Collins. RTD EcoPasses are accepted on FLEX.
- For details and schedule, .
For other options between Boulder and Longmont, see the
- N (RTD Ski-n-Ride) – to Nederland and Eldora from Boulder Station
- CU SKI BUS – Students only. Destinations vary. Visit the for more information.
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 buspass@colorado.edu
Your Buff OneCard gives you access to RTD bus and rail routes, including routes to Denver International Airport.
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 or the .
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.