Best airfares from Denver to Ontario
Jetradar compares airfares from Denver to Ontario with hundreds of airlines (including Spirit Airlines, American Airlines, United 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 €74. The cheapest oneway price found within the last week was €48.Cheapest Flights from Denver, CO to Ontario, CA
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Airline One Way One Way / Round-Trip Round-Trip 
Spirit Airlines €38 €92 
American Airlines €76 €165 
United Airlines €92 €185 
Air Canada €437 Find 
Aeromexico €450 Find -
Airline One Way One Way / Round-Trip Round-Trip 
Virgin America €120 €222 
Southwest Airlines €49 €737 
Great Lakes Airlines €504 €413 
Volaris €355 €657 
Alaska Airlines €149 €228 -
Airline One Way One Way / Round-Trip Round-Trip 
Frontier Airlines €37 €91
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 and 05:54 in Denver. Check this again shortly before your flight.