Aviasales.ge will find you the cheapest airfare for Chicago – Ontario by comparing the ticket prices to Ontario using 45 agencies, five booking systems, and 728 airlines. Where exactly you buy your tickets for Chicago – Ontario is up to you.

Direct flight for from Chicago to Ontario

The easiest way to to get to your destination is a direct flight. Direct flights for from Chicago to Ontario are offered by:

• Southwest Airlines (6 days per week, flight WN1324)

Ontario is served by 1 airport: Ontario International Airport. Direct flights for Chicago – Ontario are operated by:

• American Airlines, Delta Air Lines, Frontier Airlines, United Airlines, Southwest Airlines from O'Hare International Airport to Ontario International Airport
• Frontier Airlines, Southwest Airlines from Chicago Midway International Airport to Ontario International Airport

Flight with layover for the route from Chicago to Ontario

A flight with a layover on the route Chicago – Ontario will allow you to make your trip more interesting. The layover could be in:

• San Francisco (flight UA1878 United Airlines)
• Dallas (flight WN1783 Southwest Airlines)
• Austin (flight WN262 Southwest Airlines)

This is a great chance to get to know these cities. Layovers are usually at least six hours.

Aviasales.ge suggests buying tickets for Chicago – Ontario in advance in order to choose the conditions for your flight that best suit your preferences and budget.