The average bus between Thornton and Longmont takes 1h 27m and the fastest bus takes 1h 21m. The bus runs, on average, 5 times per week from Thornton to Longmont. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run 5 times a week between Thornton and Longmont. The earliest departure is at 1:47 PM in the afternoon, and the last departure from Thornton is at 5:04 PM which arrives into Longmont at 6:26 PM. All services require a transfer at Union Station and take an average of 1h 27m. The schedules shown below are for the next available departures.

1h 39m • 1 change

1h 23m • 1 change

1h 21m • 1 change

1h 31m • 1 change
Want to know about travelling from Thornton to Longmont? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct bus from Thornton to Longmont. However, there are services departing from Thornton station and arriving at Longmont station via Union Station station. The journey, including transfers, takes approximately 1h 27m.
Thornton to Longmont bus services, operated by Regional Transportation District, depart from Thornton PnR Gate C station.
Thornton to Longmont bus services, operated by Regional Transportation District, arrive at Coffman St & 4th Ave station.
The distance between Thornton and Longmont is 35.1 km. The road distance is 66 km.
You can take a bus from Thornton PnR Gate C to Coffman St & 4th Ave via Union Station and Union Station Gate B16 in around 2h 10m.