There are 5 ways to get from Colorado to Ontario by plane, bus (Greyhound), bus, train, car, or bus (Greyhound, Flixbus)
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 30m$95–320Bus (Greyhound)
- Take the bus from Denver Union Station to Las Vegas Bus Terminalbus Greyhound US1200
- Take the bus from Las Vegas Bus Terminal to Montclair Transcenterbus Greyhound US0901
23h 12m$182–274Bus, 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 44m$573–941Drive 981.4 mi
- Drive from Denver to Ontariocar 981.4 mi
15h 16m$168–243Bus via San Bernardino
- Take the bus from Denver Union Station to Las Vegas Bus Terminalbus Greyhound US1200
- Take the bus from Las Vegas Strip to San Bernardino Downtown Transit Centerbus FlixBus 2030 / ...
24h 59m$180–268
Colorado to Ontario by bus (Greyhound)
Comparing Your Travel Options
The cheapest way to get from Colorado to Ontario is to fly which costs $95 - $320 and takes 4h 30m.
The fastest way to get from Colorado to Ontario is to fly which takes 4h 30m and costs $95 - $320.
No, there is no direct bus from Colorado to Ontario. However, there are services departing from Civic Center Loop and arriving at Mountain @ D Street via Denver Union Station, Las Vegas Bus Terminal and Montclair Transit Center. The journey, including transfers, takes approximately 23h 12m.
The distance between Colorado and Ontario is 852 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 23h 12m and costs $180 - $280.
It takes approximately 4h 30m 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 30m and costs $95 - $320. Alternatively, you can bus, which costs $180 - $280 and takes 23h 12m.
Colorado to Ontario bus services, operated by Greyhound USA, arrive at Las Vegas Bus Terminal station.
Ontario is 1h behind Colorado. It is currently 4:14 AM in Colorado and 3:14 AM 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 Civic Center Loop to Mountain @ D Street via 16th Street & Wewatta St, Denver Union Station, Las Vegas Bus Terminal, Montclair Transcenter, and Montclair Transit Center in around 23h 12m.
- Website
- southwest.com
Flights from Denver to Ontario International Airport
- Ave. Duration
- 2h 22m
- When
- Every day
- Estimated price
- $65–350
Flights from Denver to Ontario International Airport via Las Vegas
- Ave. Duration
- 4h 10m
- When
- Every day
- Estimated price
- $65–350
Flights from Denver to Ontario International Airport via Phoenix
- Ave. Duration
- 4h 10m
- When
- Tuesday and Wednesday
- Estimated price
- $70–370
- Website
- flyfrontier.com
Flights from Denver to Ontario International Airport
- Ave. Duration
- 2h 23m
- When
- Every day
- Estimated price
- $95–320
Flights from Denver to Ontario International Airport via Las Vegas
- Ave. Duration
- 4h 16m
- When
- Every day
- Estimated price
- $95–320
- Website
- united.com
Flights from Denver to Ontario International Airport
- Ave. Duration
- 2h 22m
- When
- Every day
- Estimated price
- $65–350
- Website
- aa.com
Flights from Denver to Ontario International Airport via Phoenix
- Ave. Duration
- 4h 10m
- When
- Thursday and Sunday
- Estimated price
- $70–370
Rome2Rio's guide to Amtrak
Contact Details
- Phone
- +1 800-872-7245
- Website
- Amtrak
Train from Las Vegas Amtrak Station to Riverside
- Ave. Duration
- 19h 33m
- Frequency
- Once daily
- Estimated price
- $500–850
- Website
- Amtrak
Rome2Rio's guide to Greyhound USA
Contact Details
- Phone
- +1 214-849-8100
- ifsr@greyhound.com
- Website
- Greyhound
Bus from Denver Union Station to Las Vegas Bus Terminal
- Ave. Duration
- 15h 25m
- Frequency
- Twice daily
- Estimated price
- $140–210
- Website
- Greyhound
Bus from Las Vegas Bus Terminal to Montclair Transcenter
- Ave. Duration
- 4h 30m
- Frequency
- Twice daily
- Estimated price
- $40–65
- Website
- Greyhound
Bus from Denver Union Station to Las Vegas Bus Terminal
- Ave. Duration
- 15h 25m
- Frequency
- Twice daily
- Estimated price
- $140–210
- Website
- Greyhound
- Phone
- +1 800-923-1799
- contactus@omexusa.net
- Website
- Omnibus Express
Bus from Denver to Las Vegas Transportation Center
- Ave. Duration
- 4h 46m
- Frequency
- 4 times a day
- Estimated price
- $70–95
- Schedules at
- Omnibus Express
- Phone
- +1 (855) 626-8585
- Website
- Flixbus USA
Bus from Las Vegas Strip to San Bernardino Downtown Transit Center
- Ave. Duration
- 4h
- Frequency
- 3 times a day
- Estimated price
- $35–55
- Schedules at
- Flixbus USA
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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Booking & Getting There
Yes, the driving distance between Colorado to Ontario is 987 miles. It takes approximately 15h 16m to drive from Colorado to Ontario.
There are 252+ hotels available in Ontario.











