Best airfares from Denver to Ontario
Jetradar compares airfares from Denver to Ontario with hundreds of airlines (including Air Canada, United Airlines, American Airlines) and dozens of online travel agencies in one single place. We provide you with all the options to find the cheapest flights to Ontario, you choose where to book. Also there you can find airlines special offers from Denver to Ontario. The cheapest round-trip price found within the last week was C$105. The cheapest oneway price found within the last week was C$67.Cheapest Flights from Denver, CO to Ontario, CA
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Airline One Way One Way / Round-Trip Round-Trip 
Air Canada C$613 Find 
United Airlines C$130 C$260 
American Airlines C$107 C$232 
Alaska Airlines C$209 C$320 
Aeromexico C$632 Find -
Airline One Way One Way / Round-Trip Round-Trip 
Virgin America C$168 C$311 
Spirit Airlines C$54 C$129 
Frontier Airlines C$52 C$127 
Southwest Airlines C$69 C$1,034 
Volaris C$498 C$921 -
Airline One Way One Way / Round-Trip Round-Trip 
Great Lakes Airlines C$707 C$579
Flights from Denver to Ontario
Travelling from Denver to Ontario advices and facts
- The distance between Denver and Ontario is 802 miles (or 1290 kilometers).
- The shortest flight time is 2h 37m
- When you fly from Denver to Ontario, don't forget about the time difference. The time in Ontario is -1:00 from the Denver time. The current time in Ontario is 04:54 AM and 05:54 AM in Denver. Check this again shortly before your flight.