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.

Search and Compare cheap Flights

Enter your travel details:Step 1

Flight only
Flight + HotelSave up to 30% on vacations

From (city or airport):
Rooms: 1 2 3 4 5 6
Travelers: 1 2 3 4 5 6
To (city or airport):
Depart (mm/dd/yyyy):
Return (mm/dd/yyyy):
Weekly newsletter (optional)

Select merchants to compare:Step 2

 

From $68 / RT details

Book your flight now with Cheapoair.com and save!

Cheap Ontario airfares from $68/RT are provided by Cheapoair.com. Outbound flight is leaving on 11/06/2024, 08:20 am from Denver International Airport (DEN) airport and arrives at Ontario Int`l (ONT) at 09:46 am. The flight time is 1 hours and 26 minutes. The Returning flight departes on 11/20/2024, 06:30 am (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

• $68 Frontier Airlines 

  From	To	Departure	Time
  Denver, CO (DEN)	Ontario, CA (ONT)	11/06/2024	08:20 am
  Ontario, CA (ONT)	Denver, CO (DEN)	11/20/2024	06:30 am

  cheapoair.com check price
• $83 Frontier Airlines 

  From	To	Departure	Time
  Denver, CO (DEN)	Ontario, CA (ONT)	10/22/2024	10:38 pm
  Ontario, CA (ONT)	Denver, CO (DEN)	11/03/2024	06:30 am

  cheapoair.com check price
• $88 Frontier Airlines 

  From	To	Departure	Time
  Denver, CO (DEN)	Ontario, CA (ONT)	10/26/2024	06:00 am
  Ontario, CA (ONT)	Denver, CO (DEN)	11/01/2024	06:07 pm

  cheapoair.com check price
• $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

  cheapoair.com check price
• $98 Frontier Airlines 

  From	To	Departure	Time
  Denver, CO (DEN)	Ontario, CA (ONT)	11/16/2024	01:50 pm
  Ontario, CA (ONT)	Denver, CO (DEN)	11/25/2024	06:30 am

  cheapoair.com check price
• $34 Frontier Airlines 

  From	To	Departure	Time
  Denver, CO (DEN)	Ontario, CA (ONT)	11/06/2024	10:20 pm

  cheapoair.com check price
• $34 Frontier Airlines 

  From	To	Departure	Time
  Denver, CO (DEN)	Ontario, CA (ONT)	11/20/2024	10:38 pm

  cheapoair.com check price
• $39 Frontier Airlines 

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

  cheapoair.com check price
• $44 Frontier Airlines 

  From	To	Departure	Time
  Denver, CO (DEN)	Ontario, CA (ONT)	11/01/2024	06:00 am

  cheapoair.com check price
• $49 Frontier Airlines 

  From	To	Departure	Time
  Denver, CO (DEN)	Ontario, CA (ONT)	11/01/2024	06:00 am

  cheapoair.com check price