Cheap flights from Ontario to Chicago

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

Is it worth flying from Ontario to Chicago?

It depends. Prices for flights from Ontario to Chicago fluctuate based on several factors.

Pick a travel date to see today’s available fares.

Travel agencies and airlines sometimes offer promotional prices on certain routes — it’s worth checking regularly. Also, many travelers look for weekend flights, so booking in advance is recommended.

Flying between Ontario and Chicago? Consider these airports

Depending on your destination and where you’re starting from, it might make sense to look beyond the main hubs.

  • Airports in Ontario: Ontario has only one airport in service, Ontario.
  • Airports in Chicago: Chicago has 3 airports - Midway, O'Hare, Rockford.

Check if your destination airport has a rail link — it can make getting around easier. Jetcost lets you view options from all Ontario airports in a single search.

Flights from Ontario to Chicago

Find flights from Ontario to Chicago that suit your schedule

Use Jetcost to sort and filter results based on your preferred flight time, number of stops, price range, or airline. View deals from the best airlines and travel agencies.

Other popular destinations

Interested in United States? These cities are also in demand: Las Vegas, Los Angeles, Miami, New York City, Orlando.

Connecting flights can be cheaper but often mean longer layovers. You can easily select either direct or connecting flights with a single click using the filters.
Frequently Asked Questions

Frequently asked questions about flights from Ontario to Chicago.

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

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

How far is Ontario from Chicago?

Ontario is about 2746 km from Chicago.

What are the airports in Chicago?

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

What are the airports in Ontario?

Ontario has one airport: Ontario.

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 Ontario to Chicago?

The best time to book a flight from Ontario to Chicago is 1 month in advance, while the worst time is 1 week in advance.

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

This information is not available at the moment.

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

This information is not available at the moment.

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

This information is not available at the moment.