What is the Flatiron Flyer: Frequently Asked Questions

Whether you need to get to Denver or back home to Boulder, Regional Transportation District’s (RTD) Flatiron Flyer can help you get from point A to point B quickly, sustainably and stress-free!

What is the Flatiron Flyer?

The Flatiron Flyer, provided by RTD is the first Bus Rapid Transit (BRT) service to connect Denver with the northwest metro region’s businesses, federal institutions and the University of Colorado Boulder.

BRT is a type of bus service used across the nation to provide convenient, frequent and schedule-free travel options.

How often does the Flatiron Flyer Run?

The Flatiron Flyer provides commuters a reliable ride every four to 15 minutes during peak hours and every 15 minutes during off-peak hours, Monday through Friday.

On the weekends, the Flatiron Flyer offers commuters rides every 15 minutes during peak hours on Saturdays and every 30 minutes on Sundays.

How much does it cost to take the Flatiron Flyer?

As of September 2021, the Flatiron Flyer cost rates can vary depending if the trip is local, regional or a ride to the airport.

RTD’s Trip Calculator will allow you to select your route, then provide your cost with options deepening on the pass.

What are the different Flatiron Flyer routes?

The Flatiron Flyer routes include:

Route FF1: All-stations, all day

This route travels between Union Station in Denver and Downtown Boulder Station. A bus will run every 15 minutes during peak hours, and every 30 minutes during non-peak hours.

Route FF3: Broomfield to Union Station

FF3 travels from Broomfield to Union Station in Denver with stops at US 36 & Church Ranch Station and US 36 & Sheridan Station.

This mid-way route operates weekdays every 15 minutes in the morning to Union Station and every 15 minutes in the evening returning to US 36 & Broomfield Station.

Route FF5: Downtown Boulder Station to Anschutz

FF5 provides service between Downtown Boulder Station and Anschutz Medical Campus in Denver, primarily in the a.m. and p.m. peaks.

How can I commute sustainability using the Flatiron Flyer?

Using alternative modes of transportation, such as the Flatiron Flyer, is a key element to building a sustainable transportation network. But the work just doesn’t start when you get on the bus, it can begin on the first portion of your commute!

Along us the US 36 corridor, there are Bike-n-Ride Shelters at the RTD stations and Flatiron Flyer stops, which allows commuters to lock their bikes in a secure spot during the day. There are also bike paths, and routes which can be found using the Bike Northwest Interactive Map, and bike racks on the vehicles.

If you choose to ride your bike, mapping out your route with the Bike Northwest Interactive Map will help you plan the best way! If you’re catching a stop along US 36, try out the US 36 Bikeway where you can safely ride to and from the bus stop!

Wondering where to park your bike for the day? There are Bike-n-Ride Shelters throughout Boulder County and along US 36. Bike-n-Ride Shelters provide a secure area to store your bike during the day and provides an option to complete the first or final mile of your commute!

If you prefer to take your bike with you, each Flatiron flyer can carry up to eight bikes!


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