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 $110

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 44,335,567 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	February
High season	August
Cheapest flight	$110

Best time to beat the crowds with an average 23% drop in price.

Most popular time to fly with an average 2% 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, +76 more

ANA, Aer Lingus, +77 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, Aeromexico, +76 more

ANA, Aer Lingus, +77 more

Sunday

ANA, Aer Lingus, Aerolineas Argentinas, +76 more

ANA, Aer Lingus, +77 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, +76 more

ANA, Aer Lingus, +77 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, Aeromexico, +76 more

ANA, Aer Lingus, +77 more

Sunday

ANA, Aer Lingus, Aerolineas Argentinas, +76 more

ANA, Aer Lingus, +77 more

See more direct flights

Book cheap flights from Ontario to Chicago

Recent round-trip flight deals

5/15mié.

1 stop

11h 05mYYZ-ORD

5/16jue.

1 stop

6h 47mORD-YYZ

$223

5/7mar.

1 stop

12h 16mYYZ-ORD

5/14mar.

2 stops

22h 35mORD-YYZ

$227

6/20jue.

nonstopAir Canada

1h 54mYYZ-ORD

6/23dom.

nonstopAir Canada

1h 48mORD-YYZ

$254

5/23jue.

nonstopUnited Airlines

1h 57mYYZ-ORD

5/30jue.

nonstopUnited Airlines

1h 52mORD-YYZ

$255

8/22jue.

nonstopAir Canada

1h 54mYYZ-ORD

8/25dom.

nonstopAir Canada

1h 48mORD-YYZ

$257

6/8sáb.

1 stopDelta

5h 18mYYZ-ORD

6/22sáb.

1 stopDelta

4h 05mORD-YYZ

$258

5/24vie.

nonstopAmerican Airlines

1h 55mYYZ-ORD

5/31vie.

1 stopAmerican Airlines

6h 00mORD-YYZ

$263

5/12dom.

nonstopUnited Airlines

2h 04mYYZ-ORD

5/31vie.

nonstopUnited Airlines

1h 48mORD-YYZ

$264

5/30jue.

1 stopDelta

7h 40mYYZ-ORD

6/12mié.

1 stopDelta

4h 38mORD-YYZ

$271

5/11sáb.

nonstopAmerican Airlines

1h 56mYYZ-ORD

5/22mié.

1 stopAmerican Airlines

5h 04mORD-YYZ

$274

Recent one-way flight deals

5/7mar.

1 stop

12h 16mYYZ-ORD

$110

5/7mar.

1 stop

12h 16mYYZ-ORD

$113

6/18mar.

1 stopAir Canada

5h 53mYTZ-ORD

$150

7/27sáb.

1 stopAir Canada

5h 20mYTZ-ORD

$151

7/27sáb.

nonstopUnited Airlines

1h 56mYYZ-ORD

$151

6/1sáb.

1 stopDelta

3h 55mYYZ-ORD

$155

5/12dom.

nonstopAmerican Airlines

1h 56mYYZ-ORD

$159

6/29sáb.

nonstopUnited Airlines

1h 56mYYZ-ORD

$160

6/1sáb.

nonstopAmerican Airlines

1h 55mYYZ-ORD

$162

5/9jue.

1 stopDelta

4h 16mYYZ-ORD

$176

Last minute flights from Ontario to O'Hare Intl

Last minute flight, train and bus deals

4/30mar.

multi-stop

10h 07mYYZ-ORD

5/21mar.

multi-stop

6h 47mORD-YYZ

$322

4/30mar.

multi-stop

10h 07mYYZ-ORD

5/10vie.

multi-stop

24h 32mORD-YYZ

$333

4/29lun.

nonstopAmerican Airlines

1h 55mYYZ-ORD

5/11sáb.

nonstopAmerican Airlines

1h 35mORD-YYZ

$384

4/29lun.

nonstopAmerican Airlines

1h 55mYYZ-ORD

5/11sáb.

multi-stopAmerican Airlines

5h 20mORD-YYZ

$392

4/30mar.

multi-stopDelta

5h 40mYYZ-ORD

5/10vie.

multi-stopDelta

8h 14mORD-YYZ

$397

4/30mar.

nonstopAir Canada

1h 54mYYZ-ORD

5/10vie.

nonstopAir Canada

1h 45mORD-YYZ

$404

4/27sáb.

nonstopAir Canada

1h 54mYYZ-ORD

5/8mié.

nonstopAir Canada

1h 45mORD-YYZ

$417

4/27sáb.

multi-stopDelta

4h 10mYYZ-ORD

5/11sáb.

multi-stopDelta

6h 24mORD-YYZ

$423

4/27sáb.

multi-stopWestJet

8h 50mYYZ-ORD

5/8mié.

multi-stopWestJet

3h 20mORD-YYZ

$427

4/30mar.

multi-stopWestJet

8h 20mYYZ-ORD

5/6lun.

multi-stopWestJet

5h 30mORD-YYZ

$443

Flights to Chicago O'Hare Airport

Destination:

Chicago O'Hare Airport (ORD)United States

Return flight deals:

Chicago O'Hare Airport - Ontario

Cabin classes:

$963

$332

$1,263

$238

Browse origins:

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

$587

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

$437

Flights from Ottawa to Chicago O'Hare Intl Airport

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

$254

Flights from Toronto to Chicago O'Hare Intl Airport

Browse destinations:

$254

Flights to Chicago O'Hare Intl Airport, Chicago

Find cheap flights from Ontario to Chicago O'Hare Airport from $110

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 5/7. 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

Search by stops

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Search by price

Recent one-way flight deals

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Search by airline

Search by price

Last minute flights from Ontario to O'Hare Intl

Last minute flight, train and bus deals

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Search by price

Flights to Chicago O'Hare Airport

Destination:

Return flight deals:

Cabin classes:

Browse origins:

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