Flatiron Flyer: Fast. Reliable. Connected.

The Flatiron Flyer, RTD’s new bus rapid transit (BRT) service, launched January 3, 2016. With reliable, efficient and convenient travel for commuters along US 36, it offers bus service every 4 to 15 minutes during peak hours and every 15 minutes off-peak, Monday through Friday. The Flatiron Flyer is the first service of its kind to connect the Denver metro area with the northwest region’s businesses, federal institutions and the University of Colorado–Boulder. Riders also have convenient and frequent access to downtown Boulder, downtown Denver, the Anschutz Medical Campus, along with connections to Denver International Airport and other parts of the metro area.

The Flatiron Flyer provides modern bus rapid transit service for commuters along the US 36 corridor.


2016 Flatiron Flyer fares: $2.60 local one-way and $4.50 regional one-way. Determine your commuting costs with RTD’s fare calculator.

2016 Flatiron Flyer fares, effective January 1, 2015
2016 Flatiron Flyer fares, effective January 1, 2016

Fast and Frequent Service—All Day

The Flatiron Flyer offers Express and All-Station service: Express service makes fewer stops between Boulder and Denver. All-Station service provides service to all six transit stations along US 36, providing easy access to all the communities between Denver and Boulder. Improvements along US 36—including the US 36 Express Lanes and newly built wide shoulders that bypass slow moving traffic—mean the Flatiron Flyer will provide more reliable, frequent and predictable service. Passengers can park their cars or bikes at any one of the six transit stations along the route, which features 4,200 parking spaces, plus 200+ bike racks and lockers.

New (Route) Names

If you currently use RTD for your US 36 commute, your route has a new name and schedule. Take a look at the Basic Route & Station Patterns illustration to see the new route names.

For detailed conversion information, including a table that allows you to click on your old route to see details on the new recommended replacement route, visit RTD’s website or use the conversion table below.

Upcoming Service Changes

Beginning April 24, service on the 90L from US 36 & Sheridan Station to Civic Center Station will be expanded. Rush-hour service will operate from 6-9 a.m. and 3:30- 6:30 p.m., with frequency of approximately every 20 minutes. View the future schedule here.

New Rides: Spring 2016

Flatiron Flyer conversion table.

Starting April 22, 2016, travelers will be able to take the University of Colorado A Line electric commuter rail between Denver Union Station and Denver International Airport, traveling 23 miles in 37 minutes. The fare will be $9 and can be purchased as a one-way ticket or as a Regional Day Pass. Also expected to be completed next summer is the Northwest Rail B Line, bringing RTD rail service through the heart of original Westminster.


Updated (Hi-Tech) Stations

The Flatiron Flyer makes it easy for passengers to connect to local RTD service, and walk or bike to their destinations. The six stations conveniently located along US 36 include: US 36 & Table Mesa, US 36 & McCaslin, US 36 & Flatiron, US 36 & Broomfield, US 36 & Church Ranch and US 36 & Sheridan stations.

New canopies improve the transit experience.
New canopies improve the transit experience.
TVM with girl
Ticket vending machines offer a quick-and-easy option for paying fares prior to boarding.

Easy Connections—By Bike, Car or on Foot

First-and-Final Mile Improvements: The US 36 Bikeway and local trail extensions provide easy bike and pedestrian access to the stations.

Bike-n-Ride Shelters: Local partners are working together to add secure bike parking at the stations.

Wayfinding: Emergency markers and wayfinding signs guide bicyclists to nearby bike paths and trail systems along the US 36 corridor.

Bike Share: 36 Commuting Solutions is working with local partners to develop bike-sharing resources along US 36

New Vehicles

There are 59 new, branded buses that comprise the Flatiron Flyer fleet. Each bus carries up to eight bikes and seats 57 passengers. These modern buses are wheelchair accessible, offer plenty of storage, and feature USB ports and 120-volt outlets at each seat.

BRT: Part of the US 36 Express Lanes Project

As economic development, employment and population increase along the US 36 corridor, so does the demand for our main arteries to easily move people between the Front Range and metro Denver. It’s anticipated that by 2035, RTD ridership along US 36 will increase from current levels of 10,600 trips daily to 20,400 trips daily.


January 2016 US 36 Route Name Changes
RTD Press Release – New Brand Identity for US 36 BRT
RTD Webpage – Bus Rapid Transit
US 36 Final Environmental Impact Statement (EIS)