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>

$130 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

...and more

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41,299,237 searches in the past 7 days on KAYAK

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$183

Overall average: $297

Multiple Airlines

Mon 2/9Sat 2/28

YYZ - ORD • Non-stop

Cheapest non-stop

$184

Typical prices: $227-$331

United Airlines

Fri 4/10Sun 4/12

YYZ - ORD • Non-stop

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Chicago!

Flight Deals

Cheap Flights 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.

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

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Ontario to Chicago

Mon, Feb 9 - Sat, Feb 28

3:30 pm - 4:40 pmYYZ-ORD

2h 10mnonstop

3:35 pm - 12:04 amORD-YYZ

7h 29m1 stop

$183Multiple Airlines

Find Deal

Fri, Apr 10 - Tue, Apr 14

9:00 pm - 9:59 pmYYZ-ORD

1h 59mnonstop

9:15 pm - 12:09 amORD-YYZ

1h 54mnonstop

$184United Airlines

Find Deal

Sat, Dec 6 - Sun, Dec 7

6:00 am - 7:15 amYYZ-ORD

2h 15mnonstop

8:10 am - 10:56 amORD-YYZ

1h 46mnonstop

$188American Airlines

Find Deal

Thu, Dec 11 - Sun, Dec 14

6:00 am - 7:15 amYYZ-ORD

2h 15mnonstop

9:39 am - 12:30 pmORD-YYZ

1h 51mnonstop

$189American Airlines

Find Deal

Sat, Jan 24 - Sun, Jan 25

9:00 am - 2:55 pmYYZ-ORD

6h 55m1 stop

8:30 pm - 11:09 pmORD-YYZ

1h 39mnonstop

$190Air Canada

Find Deal

Thu, Dec 11 - Mon, Dec 15

7:00 am - 11:18 amYYZ-ORD

5h 18m1 stop

2:00 pm - 4:39 pmORD-YYZ

1h 39mnonstop

$195Air Canada

Find Deal

Tue, Nov 25 - Sun, Dec 7

6:05 am - 10:01 amYYZ-ORD

4h 56m1 stop

8:55 am - 2:48 pmORD-YYZ

4h 53m1 stop

$210Delta

Find Deal

Thu, Nov 20 - Sat, Dec 6

12:08 pm - 4:24 pmYYZ-ORD

5h 16m1 stop

6:45 am - 11:25 amORD-YYZ

3h 40m1 stop

$222Delta

Find Deal

Wed, Dec 17 - Wed, Dec 24

9:00 am - 10:02 amYYZ-ORD

2h 02mnonstop

9:20 pm - 11:59 pmORD-YYZ

1h 39mnonstop

$225Lufthansa

Find Deal

Thu, Nov 20 - Sun, Nov 23

6:50 am - 7:56 amYYZ-ORD

2h 06mnonstop

7:10 am - 9:58 amORD-YYZ

1h 48mnonstop

$226Lufthansa

Find Deal

Useful Info

Low season	January
High season	April
Cheapest flight	$130

Best time to beat the crowds but there is an average 34% increase in price.

Most popular time to fly and prices are also 8% 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.

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

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.

Gurnee

South Haven

Merrillville

Oak Brook

Saint Joseph

Tinley Park

Elk Grove Village

Hoffman Estates

Des Plaines

Hammond

Willowbrook

Portage

Delavan

Northbrook

South Holland

Elmhurst

Lansing

Pleasant Prairie

Valparaiso

Lisle

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)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

$130 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

Everything you should know

Cheap Flights 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.

Traveling to a place near Chicago?

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