Cheap flights from Ontario
to Chicago from $314

Today's Popular Cheap Flights and Airfares between Ontario and Chicago:

• Ontario (ONT) to Chicago (CHI)

Did you know on your flight between Ontario and Chicago:

• The best days to find cheap flights and discount airfares between Ontario and Chicago are Tuesday afternoons, Wednesdays and Thursdays?
• The cheapest travel days between Ontario and Chicago are usually Tuesdays, Wednesdays, and Saturdays?
• Some international airlines offer, children flying on international routes, child fares up to 25% off from Ontario and Chicago airports?
• The cheapest months to travel from Ontario to Chicago are January, February, May, September and October?
• The nonstop one-way air miles between Ontario and Chicago is 1,710 miles?
• Frequent flyers can earn 3,420 miles on a roundtrip nonstop flight between Ontario and Chicago?
• You can maximize your frequent flyer miles and earn up to 2,138 air miles one-way if you make a one-stop connecting flight between Ontario and Chicago?
• That most major airlines for travel between Ontario and Chicago charge up to $150 per person change fee to each airline ticket?
• Airlines that serve Ontario and Chicago are American Airlines, AirTran Airways, Southwest Airlines, Delta Airlines, United Airlines, JetBlue Airways, Alaska Airlines, Midwest Airlines Continental Airlines, and US Airways?
• The car rental companies that can be found at both the Ontario and Chicago airports are Hertz, Avis, Budget, Enterprise, National, and Alamo?
• You can book cheap last minute weekend getaways, and last minute deals between Ontario and Chicago?
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