Cheap flights from Colorado to Ontario, CA

Travel > North America > United States > Colorado to Ontario, CA flights

The city of Ontario has been considered as the fastest growing city in the state of California in the United States of America. The small city with its wonderful temperature and steady economic development has been able attract a lot of people to this area. The city has temperatures similar to that of the Mediterranean region with moderate temperatures and lower amount of humidity throughout the year. The rainfall in the region is also moderate and mostly you can find clear skies with bright... (read more in our Ontario Travel Guide)

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Denver 

Check our newest flight offers to Ontario, CA:

  • $121Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Denver, CO (DEN)Ontario, CA (ONT)11/03/201708:40 am
    Ontario, CA (ONT)Denver, CO (DEN)11/05/201707:00 pm
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  • $136Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Denver, CO (DEN)Ontario, CA (ONT)10/13/201708:45 am
    Ontario, CA (ONT)Denver, CO (DEN)10/17/201707:00 pm
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  • $136Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Denver, CO (DEN)Ontario, CA (ONT)10/20/201708:45 am
    Ontario, CA (ONT)Denver, CO (DEN)10/23/201710:55 am
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  • $141Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Denver, CO (DEN)Ontario, CA (ONT)10/19/201704:50 pm
    Ontario, CA (ONT)Denver, CO (DEN)10/29/201707:00 pm
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  • $243Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Denver, CO (DEN)Ontario, CA (ONT)09/22/201707:15 pm
    Ontario, CA (ONT)Denver, CO (DEN)09/30/201706:45 am
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