FF4
Flatiron Flyer
Bus
Timetable valid Sep 27, 2026 to Jan 2, 2027, from RTD's published schedule.
Departures from Park Ave W & Delgany St
No saturday service in this direction.
Live arrivals on the mapWhen it runs · Saturday
No saturday service in this direction.
The Sunday schedule also runs on Nov 26, Nov 27, Dec 25, Jan 1.
Route map
Stops (14) · To Boulder Junction
- Civic Center Station Gate 8(Timepoint)
- 18th St & Glenarm Pl
- 18th St & Stout St(Timepoint)
- 20th St & Larimer St
- Park Ave W & Delgany St(Selected stop)
- US 36 & Broomfield Station Gate L(Timepoint)
- US 36 & Flatiron Station Gate B(Timepoint)
- US 36 & McCaslin Station Gate D(Timepoint)
- US 36 & Table Mesa Station Gate E(Timepoint)
- 28th St & College Ave
- 28th St & Arapahoe Ave(Timepoint)
- 28th St & Canyon Blvd(Timepoint)
- Pearl St & 29th St
- Boulder Junction at Depot Square Station Gate B3(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.