FF4
Flatiron Flyer
Bus
Timetable valid Sep 27, 2026 to Jan 2, 2027, from RTD's published schedule.
Departures from Boulder Junction at Depot Square Station Gate B3
Departures from Boulder Junction at Depot Square Station Gate B3, the first stop.
No sunday service in this direction.
Live arrivals on the mapWhen it runs · Sunday
No sunday service in this direction.
The Sunday schedule also runs on Nov 26, Nov 27, Dec 25, Jan 1.
Route map
Stops (15) · To Civic Center
- Boulder Junction at Depot Square Station Gate B3(Timepoint)
- Pearl St & 29th St
- 28th St & Canyon Blvd(Timepoint)
- 28th St & Arapahoe Ave(Timepoint)
- 28th St & Colorado Ave
- US 36 & Table Mesa Station Gate A(Timepoint)
- US 36 & McCaslin Station Gate A(Timepoint)
- US 36 & Flatiron Station Gate D(Timepoint)
- US 36 & Broomfield Station Gate K(Timepoint)
- Park Ave West & Wewatta St
- 19th St & Market St
- 19th St & Lawrence St
- 19th St & Stout St(Timepoint)
- Broadway & Glenarm Pl
- Civic Center Station Gate 8(Timepoint)
Plan your trip and pay
- RTD's page for route FF4 (live arrivals)(opens rtd-denver.com)
- RTD trip planner(opens rtd-denver.com)
- Fares and passes(opens rtd-denver.com)
- Accessibility on RTD(opens rtd-denver.com)
- Service alerts(opens rtd-denver.com)
- Denver transit map
Source: RTD GTFS feed Sep26-37243-12-13-20261009-141920. Live arrivals come from RTD's real-time feed on the transit map.