The average bus between Thornton and Aspen takes 7h 25m and the fastest bus takes 5h 50m. The bus service runs several times per day from Thornton to Aspen. 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 every 4 hours between Thornton and Aspen. The earliest departure is at 7:24 AM in the morning, and the last departure from Thornton is at 11:07 PM which arrives into Aspen at 11:45 AM. All services require a transfer at Union Station and take an average of 7h 25m. The schedules shown below are for the next available departures.


6h 28m • 2 changes


6h 43m • 2 changes


6h 26m • 2 changes
Arrives next day


12h 46m • 2 changes


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6h 21m • 2 changes


5h 55m • 2 changes


6h 25m • 2 changes


6h 48m • 2 changes


5h 50m • 2 changes


6h 5m • 2 changes


6h 28m • 2 changes


6h 28m • 2 changes


5h 50m • 2 changes


6h 5m • 2 changes


6h 28m • 2 changes


6h 28m • 2 changes


5h 50m • 2 changes


6h 5m • 2 changes


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6h 28m • 2 changes
Want to know about travelling from Thornton to Aspen? 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 Aspen. However, there are services departing from Thornton station and arriving at Aspen station via West Glenwood Park & Ride. The journey, including transfers, takes approximately 7h 25m.
Thornton to Aspen bus services, operated by Regional Transportation District, depart from Union Station Gate B19.
Thornton to Aspen bus services, operated by Regional Transportation District, arrive at Garmisch St + Hopkins Ave station.
The distance between Thornton and Aspen is 175.7 km. The road distance is 349 km.
You can take a bus from Thornton PnR Gate C to Garmisch St + Hopkins Ave via Union Station, Union Station Gate B19, and West Glenwood Park & Ride in around 6h 44m.