How does KAYAK find such low prices on flights from Ontario to Chicago O'Hare Airport?

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 O'Hare Airport.

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

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

What is the Hacker Fare option on flights from Ontario to Chicago O'Hare Airport?

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 O'Hare Airport 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 O'Hare Airport?

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 O'Hare Airport from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

C$ 183 CHEAP FLIGHTS from Ontario to Chicago O'Hare (ORD)

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Cheap Flights from Ontario to O'Hare Intl

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 O'Hare Intl

Wed, 16 Sep - Sat, 19 Sep

6:50 p.m. - 7:48 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

1h 58mdirect

11:05 a.m. - 5:33 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

5h 28m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 278Air Canada

Fri, 18 Sep - Tue, 22 Sep

12:25 p.m. - 1:23 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

1h 58mdirect

3:40 p.m. - 9:53 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

5h 13m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 278Air Canada

Thu, 24 Sep - Sun, 27 Sep

7:00 p.m. - 8:05 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 05mdirect

8:03 a.m. - 10:59 a.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 56mdirect

C$ 290British Airways

Fri, 25 Sep - Sun, 27 Sep

1:15 p.m. - 2:20 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 05mdirect

8:30 p.m. - 11:26 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 56mdirect

C$ 293American Airlines

Thu, 24 Sep - Sun, 27 Sep

11:40 a.m. - 12:45 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 05mdirect

8:30 p.m. - 11:26 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 56mdirect

C$ 293American Airlines

Tue, 8 Sep - Tue, 15 Sep

9:00 p.m. - 10:05 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 05mdirect

8:40 p.m. - 11:26 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 46mdirect

C$ 293Multiple Airlines

Fri, 11 Sep - Fri, 18 Sep

2:45 p.m. - 3:51 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 06mdirect

9:18 p.m. - 11:59 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 41mdirect

C$ 304United Airlines

Wed, 2 Sep - Tue, 8 Sep

11:00 a.m. - 12:00 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 00mdirect

9:18 p.m. - 11:59 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 41mdirect

C$ 304United Airlines

Fri, 25 Sep - Mon, 28 Sep

11:40 a.m. - 12:45 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 05mdirect

9:45 a.m. - 12:35 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 50mdirect

C$ 332Porter Airlines

Sat, 31 Oct - Tue, 3 Nov

10:10 a.m. - 11:05 a.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

1h 55mdirect

11:45 a.m. - 2:25 p.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 40mdirect

C$ 381Porter Airlines

Recent last minute flight deals from Ontario to O'Hare Intl

Tue, 18 Aug - Tue, 8 Sep

2:00 p.m. - 2:55 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

1h 55mdirect

8:40 p.m. - 11:26 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 46mdirect

C$ 403Air Canada

Tue, 18 Aug - Tue, 8 Sep

4:00 p.m. - 8:05 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

5h 05m1 stop Montreal Pierre Elliott Trudeau Intl

8:40 p.m. - 11:26 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 46mdirect

C$ 414Air Canada

Wed, 19 Aug - Fri, 18 Sep

9:45 a.m. - 4:17 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

7h 32m1 stop Detroit Metropolitan Wayne County

8:55 a.m. - 5:20 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

7h 25m1 stop Detroit Metropolitan Wayne County

C$ 456Delta

Wed, 19 Aug - Wed, 16 Sep

9:45 a.m. - 4:17 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

7h 32m1 stop Detroit Metropolitan Wayne County

7:05 a.m. - 3:15 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

7h 10m1 stop Detroit Metropolitan Wayne County

C$ 456Delta

Tue, 18 Aug - Tue, 8 Sep

10:15 a.m. - 11:21 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 06mdirect

9:18 p.m. - 11:59 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 41mdirect

C$ 475United Airlines

Tue, 18 Aug - Mon, 14 Sep

9:00 p.m. - 10:05 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 05mdirect

2:52 p.m. - 5:56 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

2h 04mdirect

C$ 500United Airlines

Wed, 19 Aug - Wed, 26 Aug

7:20 a.m. - 8:30 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 10mdirect

5:05 a.m. - 11:10 a.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

5h 05m1 stop Charlotte Douglas

C$ 547American Airlines

Tue, 18 Aug - Sat, 19 Sep

12:49 p.m. - 7:29 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

7h 40m1 stop New York LaGuardia

8:05 a.m. - 2:59 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

5h 54m1 stop Charlotte Douglas

C$ 582American Airlines

Sun, 16 Aug - Tue, 18 Aug

7:20 a.m. - 8:30 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 10mdirect

3:40 p.m. - 6:30 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 50mdirect

C$ 675Porter Airlines

Sun, 16 Aug - Wed, 19 Aug

7:20 a.m. - 8:30 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 10mdirect

8:09 a.m. - 10:59 a.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 50mdirect

C$ 675Porter Airlines

Recent direct flight deals from Ontario to O'Hare Intl

Thu, 24 Sep - Mon, 28 Sep

12:15 p.m. - 1:21 p.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

2h 06mdirect

7:25 a.m. - 10:07 a.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 42mdirect

C$ 281Air Canada

Thu, 24 Sep - Mon, 28 Sep

7:35 p.m. - 8:41 p.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

2h 06mdirect

2:00 p.m. - 4:42 p.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 42mdirect

C$ 281Air Canada

Thu, 24 Sep - Sun, 27 Sep

7:00 p.m. - 8:05 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 05mdirect

8:03 a.m. - 10:59 a.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 56mdirect

C$ 290British Airways

Fri, 25 Sep - Sun, 27 Sep

1:15 p.m. - 2:20 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 05mdirect

8:30 p.m. - 11:26 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 56mdirect

C$ 293American Airlines

Thu, 24 Sep - Sun, 27 Sep

11:40 a.m. - 12:45 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 05mdirect

8:30 p.m. - 11:26 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 56mdirect

C$ 293American Airlines

Tue, 8 Sep - Tue, 15 Sep

9:00 p.m. - 10:05 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 05mdirect

8:40 p.m. - 11:26 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 46mdirect

C$ 293Multiple Airlines

Fri, 11 Sep - Fri, 18 Sep

2:45 p.m. - 3:51 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 06mdirect

9:18 p.m. - 11:59 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 41mdirect

C$ 304United Airlines

Wed, 2 Sep - Tue, 8 Sep

11:00 a.m. - 12:00 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 00mdirect

9:18 p.m. - 11:59 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 41mdirect

C$ 304United Airlines

Fri, 25 Sep - Mon, 28 Sep

11:40 a.m. - 12:45 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 05mdirect

9:45 a.m. - 12:35 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 50mdirect

C$ 332Porter Airlines

Sat, 31 Oct - Tue, 3 Nov

10:10 a.m. - 11:05 a.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

1h 55mdirect

11:45 a.m. - 2:25 p.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 40mdirect

C$ 381Porter Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	C$ 183

Best time to beat the crowds (7% less expensive on average)

Most popular time to fly (11% more expensive on average)

Flight from Toronto Pearson Airport to Chicago O'Hare Airport

BrianFlew with Air Canada-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-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 O'Hare Airport?
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 O'Hare Airport.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Chicago O'Hare Airport?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago O'Hare Airport from Ontario is likely to change within 7 days, so travellers know whether to wait or book now.
What is the Hacker Fare option on flights from Ontario to Chicago O'Hare Airport?
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 O'Hare Airport 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 O'Hare Airport?
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 O'Hare Airport from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Rosemont

Schaumburg

Naperville

Elk Grove Village

Skokie

Downers Grove

Lisle

Hoffman Estates

Joliet

Gurnee

Elmhurst

Tinley Park

Arlington Heights

Willowbrook

Oakbrook Terrace

Des Plaines

Merrillville

Oak Brook

Kenosha

Hammond

Everything you need to know for your flight to O'Hare Intl

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Chicago O'Hare Airport (ORD)

ORD

C$ 183 Find Cheap Flights from Ontario to Chicago O'Hare Airport – Compare and Save

Cheap Flights from Ontario to O'Hare Intl

Recent round-trip flight deals from Ontario to O'Hare Intl

Recent one-way flight deals from Ontario to O'Hare Intl

Recent last minute flight deals from Ontario to O'Hare Intl

Recent direct flight deals from Ontario to O'Hare Intl

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Flights from Ontario to O'Hare Intl: the best tips from KAYAK users

FAQs for booking Ontario to Chicago O'Hare Airport flights

Travelling to a place near O'Hare Intl?

Everything you need to know for your flight to O'Hare Intl

Information on your arrival and departure airports

Cabin class types available on flights to O'Hare Intl

Complete your trip to O'Hare Intl with a hotel stay or car rental

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