How does KAYAK find such low prices on flights from Ontario to Chicago?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Chicago. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Chicago?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from Ontario is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Ontario to Chicago?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back to Ontario with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Chicago?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$116 CHEAP FLIGHTS from Ontario to Chicago (ORD)

KAYAK searches hundreds of travel sites at once for deals on flights to Chicago O'Hare Intl Airport

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Cheap Flight Deals from Ontario to Chicago

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Chicago that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Ontario to Chicago

KAYAK's recommended round-trip deals from the most popular airlines that fly from Ontario to Chicago.

Discover the best prices for you by selecting your travel dates on KAYAK.

1:25 pm - 9:20 pmYYZ-ORD

8h 55m1 stop

11:05 am - 11:55 pmORD-YYZ

11h 50m1 stop

$132WestJet

Find Deal

Fri, May 30 - Sat, May 31

2:10 pm - 3:05 pmYYZ-ORD

1h 55mnonstop

8:25 pm - 11:07 pmORD-YYZ

1h 42mnonstop

$192Air Canada

Find Deal

Fri, May 30 - Sat, May 31

12:30 pm - 2:05 pmYUL-ORD

2h 35mnonstop

8:24 am - 11:44 amORD-YUL

2h 20mnonstop

$232American Airlines

Find Deal

Thu, May 22 - Mon, May 26

6:20 pm - 7:15 pmYYZ-ORD

1h 55mnonstop

5:00 am - 11:05 amORD-YYZ

5h 05m1 stop

$233American Airlines

Find Deal

Wed, May 21 - Sun, May 25

2:10 pm - 3:05 pmYYZ-ORD

1h 55mnonstop

9:08 pm - 12:30 pmORD-YYZ

14h 22m1 stop

$247

Find Deal

Thu, May 29 - Mon, Jun 2

6:15 am - 7:59 amYUL-ORD

2h 44mnonstop

7:19 am - 10:40 amORD-YUL

2h 21mnonstop

$252United Airlines

Find Deal

Fri, May 23 - Mon, May 26

6:30 am - 12:05 amYYZ-ORD

18h 35m1 stop

9:08 pm - 12:30 pmORD-YYZ

14h 22m1 stop

$253

Find Deal

Thu, May 29 - Mon, Jun 2

6:15 am - 7:59 amYUL-ORD

2h 44mnonstop

8:52 am - 7:45 pmORD-YUL

9h 53m1 stop

$262United Airlines

Find Deal

Fri, May 23 - Tue, May 27

6:30 am - 12:41 pmYYZ-ORD

7h 11m1 stop

1:45 pm - 10:58 pmORD-YYZ

8h 13m1 stop

$264Delta

Find Deal

Thu, Jun 5 - Fri, Jun 6

6:30 am - 12:41 pmYYZ-ORD

7h 11m1 stop

5:41 pm - 11:23 pmORD-YYZ

4h 42m1 stop

$268Delta

Find Deal

Fri, Jun 6 - Mon, Jun 9

Useful Info

Low season	January
High season	April
Cheapest flight	$116

Best time to beat the crowds with an average 2% drop in price.

Most popular time to fly and prices are also 3% lower on average.

Flight from Toronto Pearson Airport to Chicago O'Hare Airport

BrianFlew with Air CanadaYYZ-ORDOct 2024

Be prepared for a labyrinthine experience traversing the various levels and passages of the Toronto airport. Bring quality walking shoes, as it is likely well over a km in total walking time.

Jo AnnFlew with Air CanadaYYZ-ORDJun 2024

It seemed that anyone who checked a bag was able to retrieve it quickly.

Verified travelerFlew with United AirlinesYYZ-ORDMar 2024

Carry-on baggage sizing for United US bound flights appears to be much smaller than for Canadian flights, which forced me to check my bag at the last minute. So check online ahead of time

Verified travelerFlew with Air CanadaYYZ-ORDFeb 2024

I would definitely choose Air Canada over dirty old United airplanes any day.

Verified travelerFlew with United AirlinesYYZ-ORDDec 2023

The departure time was very convenient with the United.

How does KAYAK find such low prices on flights from Ontario to Chicago?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Chicago.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Chicago?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Ontario to Chicago?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back to Ontario with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Chicago?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Chicago

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Information on your arrival and departure airports

Chicago (ORD)

$116 Find Cheap Flights from Ontario to Chicago

KAYAK searches hundreds of travel sites at once for deals on flights to Chicago O'Hare Intl Airport

Cheap Flight Deals from Ontario to Chicago

Recent round-trip flight deals from Ontario to Chicago

Recent one-way flight deals from Ontario to Chicago

Recent last minute flight deals from Ontario to Chicago

Recent direct flight deals from Ontario to Chicago

Good to know

Flights from Ontario to Chicago: the best tips from KAYAK users

FAQs for booking Ontario to Chicago flights

How does KAYAK find such low prices on flights from Ontario to Chicago?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Chicago.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Chicago?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Ontario to Chicago?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back to Ontario with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Chicago?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Chicago

Information on your arrival and departure airports

Cabin class types available on flights to Chicago

Complete your trip to Chicago with a hotel stay or car rental

Find direct flights for Chicago

Flights to other popular destinations

Flights from domestic origins to Ontario

Choose which airport to fly into in Chicago