There are 4 ways to get from Casper to Ontario by plane, bus (Greyhound), 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 Casper (CPR) to Ontario International Airport (ONT)plane CPR - ONT
5h 7m$123–615Bus via South Greeley
- Take the bus from Casper Amtrak Station to Cheyenne, WYbus
- Take the bus from Cheyenne to Denver Union Stationbus
- Take the bus from Denver Union Station to Las Vegas Bus Terminalbus
- Take the bus from Las Vegas Bus Terminal to Montclair Transcenterbus
29h 47m$197–386Drive 1,029.1 mi
- Drive from Casper to Ontariocar 1,029.1 mi
17h 7m$188–272Bus
- Take the bus from Casper 144 East A St to Denver Union Stationbus
- Take the bus from Denver Union Station to Las Vegas Bus Terminalbus
- Take the bus from Las Vegas Bus Terminal to Montclair Transcenterbus
30h 3m$202–354
Casper to Ontario by bus
Questions & Answers
The cheapest way to get from Casper to Ontario is to drive which costs $180 - $280 and takes 17h 7m.
The fastest way to get from Casper to Ontario is to fly which takes 5h 7m and costs $120 - $650.
No, there is no direct bus from Casper station to Ontario. However, there are services departing from Casper Amtrak Station and arriving at Mountain @ G Street via Cheyenne, Denver Union Station, Las Vegas Bus Terminal and Montclair Transit Center. The journey, including transfers, takes approximately 29h 47m.
The distance between Casper and Ontario is 873 miles. The road distance is 1035.1 miles.
The best way to get from Casper to Ontario without a car is to bus via South Greeley which takes 29h 47m and costs $190 - $390.
It takes approximately 5h 7m to get from Casper to Ontario, including transfers.
Casper to Ontario bus services, operated by Express Arrow, depart from Casper Amtrak Station.
The best way to get from Casper to Ontario is to fly which takes 5h 7m and costs $120 - $650. Alternatively, you can bus via South Greeley, which costs $190 - $390 and takes 29h 47m.
Casper to Ontario bus services, operated by Express Arrow, arrive at Cheyenne, WY station.
Ontario is 1h behind Casper. It is currently 5:30 PM in Casper and 4:30 PM in Ontario.
What companies run services between Casper, WY, USA and Ontario, CA, USA?
United Airlines and Southwest Airlines fly from Casper (CPR) to Ontario International Airport (ONT) 4 times a day. Alternatively, you can take a bus from Casper Amtrak Station to Mountain @ G Street via Cheyenne, Denver Union Station, Las Vegas Bus Terminal, Montclair Transcenter, and Montclair Transit Center in around 29h 47m.
- Website
- southwest.com
Flights from Casper to Ontario International Airport via Denver
- Ave. Duration
- 5h 37m
- When
- Every day
- Estimated price
- $110–600
- Website
- united.com
Flights from Casper to Ontario International Airport via Denver
- Ave. Duration
- 5h 44m
- When
- Every day
- Estimated price
- $110–600
- Phone
- +1-877-779-2999
- tony@expressarrow.com
- Website
- expressarrow.com
Bus from Casper Amtrak Station to Cheyenne, WY
- Ave. Duration
- 3h
- Frequency
- Once a week
- Estimated price
- $65–80
- Website
- https://expressarrow.com
Bus from Cheyenne to Denver Union Station
- Ave. Duration
- 2h 20m
- Frequency
- 4 times a week
- Estimated price
- $45–60
- Website
- https://expressarrow.com
Bus from Casper 144 East A St to Denver Union Station
- Ave. Duration
- 6h 5m
- Frequency
- 4 times a week
- Estimated price
- $90–110
- Website
- https://expressarrow.com
Rome2Rio's guide to Greyhound USA
Contact Details
- Phone
- +1 214-849-8100
- ifsr@greyhound.com
- Website
- greyhound.com
Bus from Cheyenne to Denver Union Station
- Ave. Duration
- 1h 50m
- Frequency
- Once daily
- Estimated price
- $19–55
- Website
- https://www.greyhound.com/
Bus from Denver Union Station to Las Vegas Bus Terminal
- Ave. Duration
- 15h 30m
- Frequency
- Once daily
- Estimated price
- $70–160
- Website
- https://www.greyhound.com/
Bus from Las Vegas Bus Terminal to Montclair Transcenter
- Ave. Duration
- 5h 25m
- Frequency
- Once daily
- Estimated price
- $40–85
- Website
- https://www.greyhound.com/
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More Questions & Answers
Yes, the driving distance between Casper to Ontario is 1035 miles. It takes approximately 17h 7m to drive from Casper to Ontario.
There are 238+ hotels available in Ontario.




