Cheap flights from Ontario to Chicago
Travel > North America > United States > Ontario to Chicago flights
The rich cultural heritage of Chicago is depicted in its famous sights. Other tourist attractions in the city can be seen in zoos and parks as well. If you are thinking about visiting, it will help if you take a look at some of the travel guides for this remarkable place.... (read more in our Chicago Sightseeing)
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Cheapest flights found for the next 6 months
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Check our newest flight offers to Chicago:
- $140
Frontier Airlines
cheapoair.com check priceFrom To Departure Time Ontario, CA (ONT) Chicago, IL (ORD) 05/08/2025 10:52 am Chicago, IL (ORD) Ontario, CA (ONT) 05/09/2025 08:14 pm - $196
Multiple Airlines
cheapoair.com check priceFrom To Departure Time Ontario, CA (ONT) Chicago, IL (ORD) 05/08/2025 06:35 pm Chicago, IL (ORD) Ontario, CA (ONT) 05/09/2025 06:18 pm - $333
Porter Airlines
cheapoair.com check priceFrom To Departure Time Ottawa, ON (YOW) Chicago, IL (MDW) 04/05/2025 09:20 am Chicago, IL (MDW) Ottawa, ON (YOW) 04/16/2025 05:35 pm - $464 Porter Airlines
cheapoair.com check priceFrom To Departure Time Windsor, ON (YQG) Chicago, IL (MDW) 05/14/2025 07:00 am Chicago, IL (MDW) Windsor, ON (YQG) 05/28/2025 11:15 am - $673 Multiple Airlines
cheapoair.com check priceFrom To Departure Time Ottawa, ON (YOW) Chicago, IL (MDW) 04/05/2025 05:55 am Chicago, IL (MDW) Ottawa, ON (YOW) 04/16/2025 05:35 pm
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