There are 4 ways to get from Colorado to Ontario by plane, bus (Greyhound), bus, train, or car
Select an option below to see step-by-step directions and to compare ticket prices and travel times in Rome2Rio's travel planner.
Fly
best- Fly from Denver (DEN) to Ontario International Airport (ONT)plane DEN - ONT
4h 28m$123–613Bus (Greyhound)
cheapest- Take the bus from Denver Union Station to Las Vegas BusTerminalbus Greyhound US1200
- Take the bus from Las Vegas BusTerminal to Montclair Transcenterbus Greyhound US0900
24h 11m$110–220Bus, train
- Take the bus from Denver to Las Vegas Transportation Centerbus Denver
- Take the train from Las Vegas Amtrak Station to Riversidetrain Southwest Chief
26h 43m$157–380Drive 981.4 mi
- Drive from Denver to Ontariocar 981.4 mi
15h 10m$180–259
Colorado to Ontario by bus (Greyhound)
Questions & Answers
The cheapest way to get from Colorado to Ontario is to bus which costs $110 - $220 and takes 24h 11m.
The fastest way to get from Colorado to Ontario is to fly which takes 4h 28m and costs $120 - $650.
No, there is no direct bus from Colorado to Ontario. However, there are services departing from Colfax Ave & Grant St and arriving at Mountain @ D Street via Denver Union Station, Las Vegas BusTerminal and Montclair Transit Center. The journey, including transfers, takes approximately 24h 11m.
The distance between Colorado and Ontario is 847 miles. The road distance is 987.1 miles.
The best way to get from Colorado to Ontario without a car is to bus which takes 24h 11m and costs $110 - $220.
It takes approximately 4h 28m to get from Colorado to Ontario, including transfers.
Colorado to Ontario bus services, operated by Greyhound USA, depart from Denver Union Station.
The best way to get from Colorado to Ontario is to fly which takes 4h 28m and costs $120 - $650. Alternatively, you can bus, which costs $110 - $220 and takes 24h 11m.
Colorado to Ontario bus services, operated by Greyhound USA, arrive at Las Vegas BusTerminal station.
Ontario is 1h behind Colorado. It is currently 6:24 PM in Colorado and 5:24 PM in Ontario.
What companies run services between Colorado, USA and Ontario, CA, USA?
Frontier Airlines, United Airlines, and two other airlines fly from Denver (DEN) to Ontario International Airport (ONT) every 3 hours. Alternatively, you can take a bus from Colfax Ave & Grant St to Mountain @ D Street via Denver Union Station, Las Vegas BusTerminal, Montclair Transcenter, and Montclair Transit Center in around 24h 11m.
- Website
- southwest.com
Flights from Denver to Ontario International Airport
- Ave. Duration
- 2h 30m
- When
- Every day
- Estimated price
- $110–600
Flights from Denver to Ontario International Airport via Las Vegas
- Ave. Duration
- 4h 17m
- When
- Monday to Saturday
- Estimated price
- $110–600
Flights from Denver to Ontario International Airport via Phoenix
- Ave. Duration
- 4h 20m
- When
- Monday to Friday
- Estimated price
- $110–600
- Website
- flyfrontier.com
Flights from Denver to Ontario International Airport
- Ave. Duration
- 2h 27m
- When
- Every day
- Estimated price
- $110–600
- Website
- united.com
Flights from Denver to Ontario International Airport
- Ave. Duration
- 2h 24m
- When
- Every day
- Estimated price
- $110–600
- Website
- aa.com
Flights from Denver to Ontario International Airport via Phoenix
- Ave. Duration
- 4h 17m
- When
- Thursday, Friday, and Sunday
- Estimated price
- $110–600
Rome2Rio's guide to Amtrak
Contact Details
- Phone
- +1 800-872-7245
- Website
- amtrak.com
Train from Las Vegas Amtrak Station to Riverside
- Ave. Duration
- 19h 33m
- Frequency
- Twice daily
- Estimated price
- $85–290
- Website
- https://www.amtrak.com/home.html
- Coach Seat - Advance Purchase
- $85–240
- Coach Seat short notice purchase
- $120–290
- Business - advance purchase
- $170–700
- Business Class
- $250–650
Rome2Rio's guide to Greyhound USA
Contact Details
- Phone
- +1 214-849-8100
- ifsr@greyhound.com
- Website
- greyhound.com
Bus from Denver Union Station to Las Vegas BusTerminal
- Ave. Duration
- 15h 30m
- Frequency
- Once daily
- Estimated price
- $60–150
- Website
- https://www.greyhound.com/
Bus from Las Vegas BusTerminal to Montclair Transcenter
- Ave. Duration
- 5h 25m
- Frequency
- Once daily
- Estimated price
- $45–65
- Website
- https://www.greyhound.com/
- Phone
- +1 800-923-1799
- contactus@omexusa.net
- Website
- omnibusexpress.com
Bus from Denver to Las Vegas Transportation Center
- Ave. Duration
- 4h 45m
- Frequency
- 3 times a day
- Estimated price
- $70–90
- Schedules at
- omnibusexpress.com
Want to know more about travelling around United States
Rome2Rio's Travel Guide series provide vital information for the global traveller. Filled with useful and timely travel information, the guides answer all the hard questions - such as 'How do I buy a ticket?', 'Should I book online before I travel? ', 'How much should I expect to pay?', 'Do the trains and buses have Wifi?' - to help you get the most out of your next trip.
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More Questions & Answers
Yes, the driving distance between Colorado to Ontario is 987 miles. It takes approximately 15h 10m to drive from Colorado to Ontario.
There are 209+ hotels available in Ontario.









