Cheap flights from Ontario to Denver

Travel > North America > United States > Ontario to Denver flights

Denver began as a series of Old West mining towns during the Pikes Peak Gold Rush in what was then the western part of the Kansas Territory. The first settlement on the site of modern-day Denver was founded on the banks of the South Platte River in the summer of 1858 by gold prospectors and was called Montana City. This settlement dwindled after only a year since the miners preferred some of the existing towns in the area - especially Auraria (which is still a Denver suburb today) and St.... (read more in our Denver History)

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Check our newest flight offers to Denver:

  • $131Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Denver, CO (DEN)06/08/202101:34 pm
    Denver, CO (DEN)Ontario, CA (ONT)06/22/202106:00 am
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  • $137Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Denver, CO (DEN)05/18/202112:22 pm
    Denver, CO (DEN)Ontario, CA (ONT)05/26/202109:15 am
    cheapoair.com check price
  • $165Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Denver, CO (DEN)05/11/202106:00 am
    Denver, CO (DEN)Ontario, CA (ONT)05/19/202109:15 am
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  • $172Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Denver, CO (DEN)07/28/202108:23 pm
    Denver, CO (DEN)Ontario, CA (ONT)08/04/202106:00 am
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  • $175Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)Denver, CO (DEN)08/17/202103:20 pm
    Denver, CO (DEN)Ontario, CA (ONT)08/31/202106:00 am
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