Cheap flights from Denver to Ontario, CA

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

Check our current prices for flights from Denver to Ontario, CA. Please note that we also give you historical search data for this city connection. These are all airfares that people found in the past, in order to find more current flight information from Denver to Ontario, CA, you will need to run a search below.

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From $96 / RT details

Book your flight now with Cheapoair.com and save!

Cheap Ontario airfares from $96/RT are provided by Cheapoair.com. Outbound flight is leaving on 02/04/2025, 10:52 am from Denver International Airport (DEN) airport and arrives at Ontario Int`l (ONT) at 12:15 pm. The flight time is 1 hours and 23 minutes. The Returning flight departes on 02/11/2025, 01:00 pm (other return dates are also available). Date posted: 29 Sep 2024

Price evolution for flights From Denver To Ontario, CA

Recent Deals on Flights from Denver to Ontario, CA:Roundtrip / Oneway

• $96 Frontier Airlines 

  From	To	Departure	Time
  Denver, CO (DEN)	Ontario, CA (ONT)	02/04/2025	10:52 am
  Ontario, CA (ONT)	Denver, CO (DEN)	02/11/2025	01:00 pm

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• $113 Frontier Airlines 

  From	To	Departure	Time
  Denver, CO (DEN)	Ontario, CA (ONT)	01/13/2025	08:07 am
  Ontario, CA (ONT)	Denver, CO (DEN)	01/19/2025	09:02 am

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• $118 Frontier Airlines 

  From	To	Departure	Time
  Denver, CO (DEN)	Ontario, CA (ONT)	12/09/2024	08:10 pm
  Ontario, CA (ONT)	Denver, CO (DEN)	12/14/2024	06:45 am

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• $119 Frontier Airlines 

  From	To	Departure	Time
  Denver, CO (DEN)	Ontario, CA (ONT)	12/16/2024	08:07 am
  Ontario, CA (ONT)	Denver, CO (DEN)	12/25/2024	12:59 am

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• $134 Frontier Airlines 

  From	To	Departure	Time
  Denver, CO (DEN)	Ontario, CA (ONT)	12/08/2024	08:07 am
  Ontario, CA (ONT)	Denver, CO (DEN)	12/20/2024	09:19 pm

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• $39 Frontier Airlines 

  From	To	Departure	Time
  Denver, CO (DEN)	Ontario, CA (ONT)	01/07/2025	11:12 am

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• $44 Frontier Airlines 

  From	To	Departure	Time
  Denver, CO (DEN)	Ontario, CA (ONT)	12/25/2024	10:29 pm

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• $49 Frontier Airlines 

  From	To	Departure	Time
  Denver, CO (DEN)	Ontario, CA (ONT)	12/14/2024	10:15 pm

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• $50 Frontier Airlines 

  From	To	Departure	Time
  Denver, CO (DEN)	Ontario, CA (ONT)	11/26/2024	06:55 am

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• $69 Frontier Airlines 

  From	To	Departure	Time
  Denver, CO (DEN)	Ontario, CA (ONT)	12/05/2024	10:15 pm

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