Cheap flights from Chicago O'Hare to Ontario

Flights tailored to your budget

Selected dates may not give results due to COVID-19. We suggest you change the dates.
Multi-city Round trip One way
Round trip
One way
Multi-city
From
No results match your search criteria
To
No results match your search criteria
{{ weekDay }}
Dates
{{ panel.label }}
Looking for a one-way flight?

Flexible dates can save you money

Explore nearby dates to find lower fares

{{ fromDate | dateToLongNamedDate }}
?
Flexible dates
Depart {{ flexibleFromDateLabel }}
{{ option.label }}
?
Return {{ flexibleToDateLabel }}
{{ option.label }}
Passengers / Class
Number of passengers
Adults
{{ adults }}
Children
{{ children }}
Infants
{{ infants }}
Class
Economy
Available for Economy only
New Multi-city experience

Discover a new Multi-city search experience from Jetcost, designed to handle more complex itineraries. By continuing, you’ll be taken to a dedicated page powered by Kiwi.com.
How do we get the info you see here? Please note that we offer an online comparison service and that all information and prices regarding services and/or products available on our website are provided by our third-party partners. We do our best to show you up-to-date information, but please note that we are not responsible for the completeness or accuracy of the information published, so please check all conditions carefully on the website of the partner before making a booking. Please check our Terms and Conditions for more details. Read more

Flight prices from Chicago O'Hare to Ontario

There’s no fixed price — fares between Chicago and Ontario can vary a lot by day or time.

Choose a date to explore the best fares now.

The lowest fares are often found with some flexibility in travel dates. If your plans are flexible, you’ll have a better chance of finding cheap flights.

Are there alternative airports near Chicago and Ontario?

The two cities are about 1697 mi apart. Looking beyond the main airport might reveal better options.

  • Airports in Chicago: There are 3 airports in Chicago - Midway, O'Hare, Rockford.
  • Airports in Ontario: Only Ontario is active at the moment.

Many smaller airports are connected by direct buses or shuttles, often at low cost. If Ontario has more than one airport, you can pick the most convenient for your destination.

Filter and compare flights from Chicago O'Hare to Ontario

Jetcost helps you manage complex searches with simple filters. Sort by airline, duration, number of stops, or even time windows for outbound and return flights.

Other popular destinations

Want more ideas for your trip to United States? Check these: Las Vegas, Los Angeles, Miami, New York City, Orlando.

Advanced filters help you skip long layovers or inconvenient times. The “airlines” filter is handy if you want to collect miles or prefer a certain onboard experience.
Frequently Asked Questions

Frequently asked questions about flights from Chicago O'Hare to Ontario.

How much does an airline ticket from Chicago O'Hare to Ontario cost?

Flight prices can vary a lot depending on the period and destination. At the moment, this information is not available for flights from Chicago O'Hare to Ontario.

How far is Chicago from Ontario?

Chicago is about 1697 mi from Ontario.

What are the airports in Ontario?

Ontario has one airport: Ontario.

What are the airports in Chicago?

Chicago has 3 airports: Midway, O'Hare, Rockford.

What are the most popular cities in United States?

The most popular cities in United States according to our users' searches are: Las Vegas, Los Angeles, Miami, New York City, Orlando.

When should I book a flight from Chicago to Ontario?

This information is not available at the moment.

What is the cheapest month to fly from Chicago to Ontario?

This information is not available at the moment.

What is the most expensive month to fly from Chicago to Ontario?

This information is not available at the moment.

What is the best day of the week to fly from Chicago to Ontario?

This information is not available at the moment.