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. 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 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. Visit our flight page for the latest deals!>/a>

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. 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 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. Visit our flight page for the latest deals!>/a>

Cheap Flights from Ontario to Chicago O'Hare (ORD) from C$ 159

ORD

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In the last 7 days, travellers have searched 42,830,901 times on KAYAK, and here is why:

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Low season	January
High season	May
Cheapest flight	C$ 159

Best time to beat the crowds (8% less expensive on average)

Most popular time to fly (6% more expensive on average)

Flight from Toronto Pearson Airport to Chicago O'Hare Airport

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.

See more FAQs

Nonstop departures

Ontario to Chicago O'Hare Intl

Monday

ANA, Aer Lingus, Aeromexico, +77 more

ANA, Aer Lingus, +78 more

Tuesday

ANA, Aer Lingus, Aerolineas Argentinas, +77 more

ANA, Aer Lingus, +78 more

Wednesday

ANA, Aer Lingus, Aeromexico, +77 more

ANA, Aer Lingus, +78 more

Thursday

ANA, Aer Lingus, Aeromexico, +76 more

ANA, Aer Lingus, +77 more

Friday

ANA, Aer Lingus, Aerolineas Argentinas, +78 more

ANA, Aer Lingus, +79 more

Saturday

ANA, Aer Lingus, Aerolineas Argentinas, +77 more

ANA, Aer Lingus, +78 more

Sunday

ANA, Aer Lingus, Aerolineas Argentinas, +77 more

ANA, Aer Lingus, +78 more

See more nonstop flights

Nonstop returns

Chicago O'Hare Intl to Ontario

Monday

ANA, Aer Lingus, Aeromexico, +77 more

ANA, Aer Lingus, +78 more

Tuesday

ANA, Aer Lingus, Aerolineas Argentinas, +77 more

ANA, Aer Lingus, +78 more

Wednesday

ANA, Aer Lingus, Aeromexico, +77 more

ANA, Aer Lingus, +78 more

Thursday

ANA, Aer Lingus, Aeromexico, +76 more

ANA, Aer Lingus, +77 more

Friday

ANA, Aer Lingus, Aerolineas Argentinas, +78 more

ANA, Aer Lingus, +79 more

Saturday

ANA, Aer Lingus, Aerolineas Argentinas, +77 more

ANA, Aer Lingus, +78 more

Sunday

ANA, Aer Lingus, Aerolineas Argentinas, +77 more

ANA, Aer Lingus, +78 more

See more nonstop flights

Book cheap flights from Ontario to Chicago

Recent round-trip flight deals

29/5Wed

1 stop

11h 05mYYZ-ORD

5/6Wed

1 stop

18h 20mORD-YYZ

C$ 268

4/6Tue

1 stop

12h 10mYYZ-ORD

11/6Tue

1 stop

18h 20mORD-YYZ

C$ 275

4/6Tue

2 stops

17h 40mYYZ-ORD

11/6Tue

1 stop

18h 20mORD-YYZ

C$ 279

29/5Wed

directAir Canada

1h 56mYYZ-ORD

31/5Fri

directAir Canada

1h 45mORD-YYZ

C$ 352

29/5Wed

directAir Canada

2h 02mYYZ-ORD

5/6Wed

directAir Canada

1h 45mORD-YYZ

C$ 356

25/5Sat

directLufthansa

2h 02mYYZ-ORD

26/5Sun

directLufthansa

1h 45mORD-YYZ

C$ 368

1/6Sat

1 stopUnited Airlines

5h 07mYYZ-ORD

8/6Sat

directUnited Airlines

1h 43mORD-YYZ

C$ 374

25/7Thu

directUnited Airlines

1h 57mYYZ-ORD

29/7Mon

directUnited Airlines

1h 43mORD-YYZ

C$ 376

23/5Thu

directAmerican Airlines

1h 55mYYZ-ORD

27/5Mon

directAmerican Airlines

1h 40mORD-YYZ

C$ 398

31/5Fri

directAmerican Airlines

1h 55mYYZ-ORD

3/6Mon

directAmerican Airlines

1h 40mORD-YYZ

C$ 409

Recent one-way flight deals

14/5Tue

1 stop

17h 59mYYZ-ORD

C$ 159

22/5Wed

1 stop

12h 10mYYZ-ORD

C$ 168

22/5Wed

1 stop

11h 05mYYZ-ORD

C$ 170

2/8Fri

directUnited Airlines

1h 57mYYZ-ORD

C$ 209

18/6Tue

1 stopAir Canada

5h 53mYTZ-ORD

C$ 209

8/6Sat

directUnited Airlines

1h 57mYYZ-ORD

C$ 211

8/6Sat

1 stopAir Canada

7h 13mYTZ-ORD

C$ 212

10/6Mon

directLufthansa

2h 02mYYZ-ORD

C$ 226

18/6Tue

1 stopAmerican Airlines

6h 52mYYZ-ORD

C$ 229

13/6Thu

1 stopAmerican Airlines

5h 09mYYZ-ORD

C$ 230

Last minute flights from Ontario to O'Hare Intl

Last minute flight, train and bus deals

10/5Fri

multi-stop

19h 25mYYZ-ORD

13/5Mon

multi-stop

23h 42mORD-YYZ

C$ 472

10/5Fri

multi-stop

30h 18mYYZ-ORD

13/5Mon

multi-stop

23h 42mORD-YYZ

C$ 478

10/5Fri

directAir Canada

2h 04mYYZ-ORD

15/5Wed

directAir Canada

1h 45mORD-YYZ

C$ 534

7/5Tue

directAir Canada

2h 01mYYZ-ORD

8/6Sat

directAir Canada

1h 43mORD-YYZ

C$ 546

6/5Mon

multi-stopWestJet

7h 31mYYZ-ORD

31/5Fri

multi-stopWestJet

5h 00mORD-YYZ

C$ 550

10/5Fri

multi-stopWestJet

3h 57mYYZ-ORD

15/5Wed

multi-stopWestJet

3h 20mORD-YYZ

C$ 572

6/5Mon

multi-stopUnited Airlines

13h 11mYYZ-ORD

31/5Fri

directUnited Airlines

1h 45mORD-YYZ

C$ 579

10/5Fri

directAmerican Airlines

1h 56mYYZ-ORD

15/5Wed

directAmerican Airlines

1h 35mORD-YYZ

C$ 597

7/5Tue

directAmerican Airlines

1h 56mYYZ-ORD

13/5Mon

directAmerican Airlines

1h 50mORD-YYZ

C$ 613

7/5Tue

multi-stopUnited Airlines

5h 41mYYZ-ORD

8/5Wed

directUnited Airlines

1h 45mORD-YYZ

C$ 673

Flights to Chicago O'Hare Airport

Destination:

Chicago O'Hare Airport (ORD)United States

Return flight deals:

Chicago O'Hare Airport - Ontario

Cabin classes:

C$ 989

C$ 829

C$ 848

C$ 395

Browse origins:

Flights from Hamilton, Ontario to Chicago O'Hare Intl Airport

C$ 1,304

Flights from Kingston, Ontario to Chicago O'Hare Intl Airport

C$ 821

Flights from London, Ontario to Chicago O'Hare Intl Airport

C$ 541

Flights from Ottawa to Chicago O'Hare Intl Airport

C$ 1,032

Flights from Sudbury, Ontario to Chicago O'Hare Intl Airport

Flights from Toronto Pearson Intl Airport to Chicago O'Hare Intl Airport

C$ 268

Flights from Toronto to Chicago O'Hare Intl Airport

Browse destinations:

C$ 268

Flights to Chicago O'Hare Intl Airport, Chicago

ORD

Find cheap flights from Ontario to Chicago O'Hare Airport from C$ 159

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to O'Hare Intl departing on 14/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.

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

Good to know

Low season

High season

Cheapest flight

FAQs for booking Ontario to Chicago O'Hare Airport flights

How does KAYAK find such low prices 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?

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

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

Prefer to fly non-stop from Ontario to Chicago O'Hare Airport?

Ontario to Chicago O'Hare Intl

Chicago O'Hare Intl to Ontario

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Recent round-trip flight deals

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Recent one-way flight deals

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Last minute flights from Ontario to O'Hare Intl

Last minute flight, train and bus deals

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Flights to Chicago O'Hare Airport

Destination:

Return flight deals:

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