Cheap flights from Chicago to Ontario, CA
Travel > North America > United States > Chicago to Ontario, CA flights
Travel tip: Visit Ontario on your holidays!Check our current prices for flights from Chicago 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 Chicago to Ontario, CA, you will need to run a search below.
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Cheap Ontario airfares from $740/RT are provided by Cheapoair.com. Outbound flight is leaving on 06/25/2025, 06:15 am from Chicago Midway (MDW) airport and arrives at Ontario Int`l (ONT) at 10:28 am. The flight time is 4 hours and 13 minutes. The Returning flight departes on 07/09/2025, 10:17 pm (other return dates are also available). Date posted: 14 Feb 2025
Price evolution for flights From Chicago To Ontario, CA
Recent Deals on Flights from Chicago to Ontario, CA:Roundtrip / Oneway
- $740
Frontier Airlines
cheapoair.com check priceFrom To Departure Time Chicago, IL (MDW) Ontario, CA (ONT) 06/25/2025 06:15 am Ontario, CA (ONT) Chicago, IL (MDW) 07/09/2025 10:17 pm - We are sorry but currently there are no oneway offers for flights from Chicago to Ontario, CA.
Please visit this page again later or try out our merchant comparison search. Good luck!
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Know what to do when flying to Ontario, CA?
Ontario Travel Guide A city in the San Bernardino County in California, Ontario offers wonderful living conditions for its residents. Over the years its reputation as a significant tourist attraction has also grown considerably. The city got the name of Ontario [...]Ontario History Ontario City is situated in the San Bernardino County (California) which is in United States. According to 2000 census, recorded population in Ontario was 170,373. The lands of Ontario were earlier used for foraging and hunting by the [...]
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