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>

$118 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 Flights from Ontario to Chicago

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

Thu, Mar 19 - Mon, Mar 23

9:25 am - 11:18 am

YUL

ORD

2h 53mnonstop

3:35 pm - 6:40 pm

ORD

YUL

2h 05mnonstop

$176Air Canada

Thu, Mar 26 - Mon, Mar 30

9:25 am - 11:18 am

YUL

ORD

2h 53mnonstop

8:40 am - 11:51 am

ORD

YUL

2h 11mnonstop

$177Air Canada

Tue, Mar 17 - Wed, Mar 18

4:45 pm - 6:45 pm

YUL

ORD

3h 00mnonstop

7:00 am - 3:16 pm

ORD

YUL

7h 16m

1 stop

$194United Airlines

Sat, Apr 4 - Mon, Apr 6

8:50 am - 9:50 am

YYZ

ORD

2h 00mnonstop

9:20 pm - 11:59 pm

ORD

YYZ

1h 39mnonstop

$197Lufthansa

Sat, Apr 4 - Mon, Apr 20

9:45 am - 11:37 am

YUL

ORD

2h 52mnonstop

7:13 am - 10:40 am

ORD

YUL

2h 27mnonstop

$198Lufthansa

Fri, Apr 10 - Sun, Apr 12

7:00 am - 8:03 am

YYZ

ORD

2h 03mnonstop

8:45 am - 2:19 pm

ORD

YYZ

4h 34m

1 stop

$200United Airlines

Sat, Apr 18 - Sat, Apr 25

7:00 am - 9:17 pm

YOW

ORD

15h 17m

1 stop

7:06 am - 5:25 pm

ORD

YOW

9h 19m

1 stop

$254Multiple Airlines

Sat, Apr 18 - Sat, Apr 25

3:35 pm - 11:05 pm

YOW

ORD

8h 30m

2 stops

7:06 am - 5:25 pm

ORD

YOW

9h 19m

1 stop

$295Multiple Airlines

Fri, May 22 - Mon, May 25

2:20 pm - 4:40 pm

YXU

ORD

27h 20m

2 stops

5:30 pm - 5:20 am

ORD

YXU

10h 50m

1 stop

$387WestJet

Fri, May 22 - Mon, May 25

5:55 pm - 4:40 pm

YXU

ORD

23h 45m

1 stop

5:30 pm - 5:20 am

ORD

YXU

10h 50m

1 stop

$402WestJet

Useful Info

Low season	November
High season	July
Cheapest flight	$118

Best time to beat the crowds with an average 5% drop in price.

Flight from Montreal to Chicago O'Hare Airport

BrianFlew with Air Canada

YYZ

ORD

Oct 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 Airlines

YYZ

ORD

Mar 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

Des Plaines

Hoffman Estates

Hammond

Willowbrook

Portage

South Holland

Delavan

Northbrook

Lansing

Pleasant Prairie

Elmhurst

Lisle

Valparaiso

Everything you need to know for your flight to Chicago

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Chicago (ORD)

$118 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 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

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