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Bus Service in Longmont

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Ride Free Longmont


You can enjoy buzzing about town for free – all day, every day! Ride Free Longmont provides unlimited trips on Longmont’s local buses at no charge to riders. No cards, passes, or ID are needed to ride the local routes. Ask for a transfer and receive credit towards the fare on RTD regional bus routes. The program is paid for through the City’s Street Fund.

**Free service is funded through 12/31/2021**

For rider information and trip planning, visit >



The Regional Transportation District (RTD) is the public transportation service provider for the Denver Metro region, and it includes bus service to/from Longmont. RTD services are funded through a combination of federal transportation dollars, fares and a 0.6 percent sales tax (6 cents for every $10 dollar purchase). Because one option does not fit all users, RTD attempts to provide appropriate service for different situations and users. Service types include:

  • Bus Service: Local, Express, and Regional
  • Light or Commuter Rail Service (does not currently extend to Longmont)
  • FlexRide (formerly Call-n-Ride) offers curb-to-curb service, like a taxi, within Longmont
  • Park-n-Ride
  • Bike-n-Ride
  • SkyRide (service to Denver International Airport from designated Park-n-Ride lots throughout the region)
  • Access-a-Ride provides curbside and door-to-door travel options for people with disabilities. It's free within Longmont for those who qualify
  • Transportation to special events such as Broncos and Rockies games can be accessed at designated Park-n-Ride lots for a cash-only fare

For an in depth explanation about the local and regional RTD buses, how to utilize trip planning applications, fare structures,  transfers, the MyRide Smart Card, and parking, please view the How to Ride RTD presentation by Commuting Solutions.

Eco Passes, which can be purchased by employers for their employees, provide unlimited access to all transit services with the exception of the Broncos and Rockies Rides.

Visit the RTD website to find fares, schedules, and other rider information.


The FasTracks plan includes rapid transit (commuter- or light-rail) in six corridors throughout the Denver Region. One of the corridors includes US-36 from Denver to Boulder and the Diagonal Highway (SH-119) from Boulder to Longmont. FasTracks includes a commuter-rail connection from Denver through Boulder to Longmont via the existing Burlington Northern/Santa Fe Railroad line.

The Northwest Area Mobility Study (NAMS) developed a prioritized list of mobility improvements for the northwest area of the Regional Transportation District’s (RTD) service area. The goal was to determine if there is a more cost-effective way to improve mobility in the area that could be implemented sooner than current projections for when RTD could complete the Northwest Rail Line to Longmont. The study began in the spring of 2013 and was completed in 2014. Visit RTD FasTracks to view the Northwest Area Mobility Study.

For More Information on RTD Services

Contact RTD


FLEX is a regional bus route serving stops between Fort Collins, Loveland, Berthoud and Longmont, made possible through a regional partnership and operated by Transfort.

FLEX offers a variety of options to maximize the convenience and accessibility to communities in Northern Colorado. During peak morning and evening times, FLEX provides service connecting Fort Collins, Loveland, Berthoud and Longmont. Transfers to Denver and Boulder through the RTD bus system are available in Longmont. Midday, FLEX provides service between Fort Collins and Loveland.

Visit the FLEX website to find fares, schedules, and other rider information >

Other Local Transit Options

Via Mobility offers transportation services to Longmont seniors (65+) and others of any age who cannot drive. The service is fare-based ($5 one-way) with reduced and no-fare options available for those who qualify. Learn more on the Via website >

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