Flatiron Flyer: Fast. Reliable. Connected

RTD’s Bus Rapid Transit (BRT) service, the Flatiron Flyer, is the first BRT service to connect Denver with the northwest metro region’s businesses, federal institutions and the University of Colorado Boulder. Riders have access to downtown Boulder, downtown Denver, the Anschutz Medical Campus, along with connections to Denver International Airport and other parts of the Denver metro area.

The Flatiron Flyer offers commuters a reliable ride every four to 15 minutes during peak hours and every 15 minutes off-peak, Monday through Friday. On the weekends, the Flatiron Flyer offers commuters a reliable ride every 15 minutes during peak hours on Saturday and every 30 minutes on Sunday.

2021 Flatiron Flyer fares: $3.00 local three-hour pass and $5.25 regional three-hour pass. Determine your commuting costs with RTD’s fare calculator.

RTD’s Flatiron Flyer is widely used and trusted by commuters in the northwest metro region! Since its opening in 2016, the Flatiron Flyer connects more than 12,000 commuters to their final destination every day.

Fast and Frequent Service—All Day

The Flatiron Flyer offers both Express and All-Station service. Express service makes fewer stops between Boulder and Denver, with a travel time of 30 minutes,  while All-Station service provides service to all six transit stations along US 36 and takes one hour end-to-end. Improvements along US 36—including the US 36 Express Lanes and newly built shoulders that bypass slow-moving traffic—means 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 and more than 200 bike racks and lockers.



RTD Webpage – Bus Rapid Transit
Flatiron Flyer Fact Sheet
Northwest Metro Region Commuter Guide

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