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 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 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 $107

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

...and more

In the last 7 days travelers have searched 42,573,820 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

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

Bundle and saveSave money when you bundle your flight + hotel.

Low season	January
High season	August
Cheapest flight	$107

Best time to beat the crowds with an average 9% drop in price.

Most popular time to fly with an average 10% increase in price.

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 travelers 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 direct 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 direct flights

Book cheap flights from Ontario to Chicago

Recent round-trip flight deals

6/4mar

1 stop

12h 10mYYZ-ORD

6/11mar

1 stop

18h 20mORD-YYZ

$201

6/4mar

2 stops

17h 40mYYZ-ORD

6/11mar

1 stop

18h 20mORD-YYZ

$204

6/13gio

nonstopUnited Airlines

2h 02mYYZ-ORD

6/16dom

nonstopUnited Airlines

1h 48mORD-YYZ

$258

7/9mar

nonstopAir Canada

1h 54mYYZ-ORD

7/12ven

nonstopAir Canada

1h 43mORD-YYZ

$260

6/4mar

1 stopAir Canada

5h 41mYYZ-ORD

6/11mar

nonstopAir Canada

1h 45mORD-YYZ

$266

6/13gio

nonstopAmerican Airlines

1h 55mYYZ-ORD

6/15sab

1 stopAmerican Airlines

9h 28mORD-YYZ

$268

8/16ven

1 stopUnited Airlines

8h 40mYYZ-ORD

8/19lun

1 stopUnited Airlines

8h 09mORD-YYZ

$287

5/25sab

nonstopAmerican Airlines

1h 56mYYZ-ORD

5/27lun

1 stopAmerican Airlines

4h 17mORD-YYZ

$301

8/27mar

1 stopDelta

6h 00mYYZ-ORD

8/30ven

1 stopDelta

3h 55mORD-YYZ

$305

9/3mar

1 stopDelta

6h 00mYYZ-ORD

9/11mer

1 stopDelta

4h 59mORD-YYZ

$324

Recent one-way flight deals

5/21mar

1 stop

17h 59mYYZ-ORD

$107

5/14mar

1 stop

12h 10mYYZ-ORD

$116

6/26mer

nonstopAir Canada

1h 57mYYZ-ORD

$145

7/2mar

1 stopAir Canada

4h 17mYHM-ORD

$145

6/4mar

nonstopAmerican Airlines

1h 56mYYZ-ORD

$154

5/27lun

1 stopAmerican Airlines

5h 26mYYZ-ORD

$168

7/5ven

1 stopUnited Airlines

6h 17mYYZ-ORD

$169

6/5mer

1 stopDelta

6h 47mYYZ-ORD

$171

6/26mer

1 stopUnited Airlines

9h 35mYYZ-ORD

$185

9/4mer

1 stopDelta

8h 13mYYZ-ORD

$189

Last minute flights from Ontario to O'Hare Intl

Last minute flight, train and bus deals

5/8mer

multi-stop

11h 05mYYZ-ORD

5/15mer

multi-stop

9h 17mORD-YYZ

$380

5/11sab

multi-stop

8h 54mYYZ-ORD

5/14mar

multi-stop

25h 35mORD-YYZ

$389

5/11sab

multi-stopWestJet

3h 56mYYZ-ORD

5/18sab

multi-stopWestJet

4h 10mORD-YYZ

$429

5/11sab

multi-stopWestJet

4h 52mYYZ-ORD

5/14mar

multi-stopWestJet

5h 00mORD-YYZ

$439

5/10ven

nonstopAir Canada

1h 54mYYZ-ORD

5/16gio

nonstopAir Canada

1h 45mORD-YYZ

$456

5/11sab

nonstopAmerican Airlines

1h 56mYYZ-ORD

5/13lun

nonstopAmerican Airlines

1h 35mORD-YYZ

$459

5/10ven

multi-stopDelta

5h 03mYYZ-ORD

5/17ven

multi-stopDelta

8h 14mORD-YYZ

$465

5/10ven

nonstopAir Canada

2h 04mYYZ-ORD

5/13lun

nonstopAir Canada

1h 42mORD-YYZ

$469

5/10ven

multi-stopAmerican Airlines

4h 55mYYZ-ORD

5/13lun

multi-stopAmerican Airlines

7h 40mORD-YYZ

$470

5/7mar

multi-stopDelta

5h 19mYYZ-ORD

5/10ven

multi-stopDelta

6h 00mORD-YYZ

$542

Flights to Chicago O'Hare Airport

Destination:

Chicago O'Hare Airport (ORD)United States

Return flight deals:

Chicago O'Hare Airport - Ontario

Cabin classes:

$978

$538

$1,263

$239

Browse origins:

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

$548

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

$354

Flights from Ottawa to Chicago O'Hare Intl Airport

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

$217

Flights from Toronto to Chicago O'Hare Intl Airport

Browse destinations:

$217

Flights to Chicago O'Hare Intl Airport, Chicago

Find cheap flights from Ontario to Chicago O'Hare Airport from $107

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 5/21. 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

Book cheap flights from Ontario to Chicago

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:

Cabin classes:

Browse origins:

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