Cheap flights from Illinois to Ontario, CA
Travel > North America > United States > Illinois to Ontario, CA flights
Ontario has been noted for its unmatchable nightlife throughout the world. When the sun sets, the city starts radiating with an overweening vigor. All the travelers who have a taste for nightlife swear that Ontario is a city where life starts only after sunset. And do not be amazed if you get to bump into one of the tinsel stars.... (read more in our Ontario Nightlife)
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Cheapest flights found for the next 6 months
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Check our newest flight offers to Ontario, CA:
- $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
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