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Thornton to Keystone buses

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Trip Overview

The average bus between Thornton and Keystone takes 6h 25m and the fastest bus takes 2h 57m. The bus service runs several times per day from Thornton to Keystone. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

6h 25m
Duration
91 mi
Distance
$15
Average price
3 times a day
Frequency

Thornton to Keystone bus times

Buses run 3 times a day between Thornton and Keystone. The earliest departure is at 7:24 AM in the morning, and the last departure from Thornton is at 10:59 PM which arrives into Keystone at 8:24 AM. All services require a transfer at Union Station and take an average of 6h 25m. The schedules shown below are for the next available departures.

Departing Monday, November 2, 2026

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    Regional TransportBustangSummit Stage3h 7m • 2 changes
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    Regional TransportBustangSummit Stage3h 7m • 2 changes
  •  → 

    Arrives next day

    Regional TransportBustangSummit Stage12h 6m • 2 changes
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    Arrives next day

    Regional TransportBustangSummit Stage9h 25m • 2 changes

Departing Tuesday, November 3, 2026

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    Regional TransportBustangSummit Stage3h 7m • 2 changes
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    Regional TransportBustangSummit Stage3h 7m • 2 changes
  •  → 

    Arrives next day

    Regional TransportBustangSummit Stage12h 6m • 2 changes
  •  → 

    Arrives next day

    Regional TransportBustangSummit Stage9h 25m • 2 changes

Departing Wednesday, November 4, 2026

  •  → 

    Regional TransportBustangSummit Stage3h 7m • 2 changes
  •  → 

    Regional TransportBustangSummit Stage3h 7m • 2 changes
  •  → 

    Arrives next day

    Regional TransportBustangSummit Stage12h 6m • 2 changes
  •  → 

    Arrives next day

    Regional TransportBustangSummit Stage9h 25m • 2 changes

Departing Thursday, November 5, 2026

  •  → 

    Regional TransportBustangSummit Stage3h 7m • 2 changes
  •  → 

    Regional TransportBustangSummit Stage3h 7m • 2 changes
  •  → 

    Arrives next day

    Regional TransportBustangSummit Stage12h 6m • 2 changes
  •  → 

    Arrives next day

    Regional TransportBustangSummit Stage9h 25m • 2 changes

Departing Friday, November 6, 2026

  •  → 

    Regional TransportBustangSummit Stage3h 7m • 2 changes
  •  → 

    Regional TransportBustangSummit Stage3h 7m • 2 changes
  •  → 

    Arrives next day

    Regional TransportBustangSummit Stage12h 6m • 2 changes
  •  → 

    Arrives next day

    Regional TransportBustangSummit Stage9h 25m • 2 changes

Departing Saturday, November 7, 2026

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    Regional TransportBustangSummit Stage3h • 2 changes
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    Regional TransportBustangSummit Stage2h 57m • 2 changes
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    Regional TransportBustangSummit Stage2h 57m • 2 changes

Frequently asked questions

Want to know about travelling from Thornton to Keystone? 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.

Map of how to get from Thornton to Keystone.ExpandLaunch map view
  • Distance: 90.9 mi
  • Duration: 6h 25m

What companies run services between Thornton, CO, USA and Keystone, Summit County, CO, USA?

Bustang operates a bus from Union Station Gate B19 to Frisco Transit Center hourly. Tickets cost $12–17 and the journey takes 1h 45m.

Operators