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>

C$ 155 CHEAP FLIGHTS from Ontario to Chicago O'Hare (ORD)

ORD

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

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Cheapest round-trip

C$ 239

Typical prices: C$ 412-C$ 677

Air Canada

Thu 26/3Mon 30/3

YUL - ORD • Direct

Cheapest one-way flights

C$ 155

Typical prices: C$ 222-C$ 407

Air Canada

Tue 17/3

YUL - ORD • Direct

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We hope you love your trip to O'Hare Intl!

Flight Deals

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

Thu, 26 Mar - Mon, 30 Mar

1:10 p.m. - 2:55 p.m.

YUL

ORD

2h 45mdirect

12:50 p.m. - 4:05 p.m.

ORD

YUL

2h 15mdirect

C$ 239Air Canada

Wed, 25 Mar - Mon, 30 Mar

6:25 p.m. - 8:10 p.m.

YUL

ORD

2h 45mdirect

12:50 p.m. - 4:05 p.m.

ORD

YUL

2h 15mdirect

C$ 241Air Canada

Thu, 2 Apr - Mon, 6 Apr

6:10 a.m. - 8:00 a.m.

YUL

ORD

2h 50mdirect

7:13 a.m. - 10:40 a.m.

ORD

YUL

2h 27mdirect

C$ 242United Airlines

Sun, 8 Mar - Sun, 15 Mar

1:10 p.m. - 2:55 p.m.

YUL

ORD

2h 45mdirect

7:15 a.m. - 10:20 a.m.

ORD

YUL

2h 05mdirect

C$ 249Air Canada

Fri, 1 May - Mon, 4 May

9:45 a.m. - 11:28 a.m.

YUL

ORD

2h 43mdirect

4:25 p.m. - 12:13 a.m.

ORD

YUL

6h 48m

1 stop

C$ 253United Airlines

Thu, 12 Mar - Mon, 16 Mar

3:45 p.m. - 5:45 p.m.

YUL

ORD

3h 00mdirect

6:44 p.m. - 1:45 p.m.

ORD

YUL

18h 01m

1 stop

C$ 263American Airlines

Fri, 27 Feb - Sun, 1 Mar

8:45 a.m. - 9:50 a.m.

YYZ

ORD

2h 05mdirect

6:28 p.m. - 9:21 p.m.

ORD

YYZ

1h 53mdirect

C$ 283Lufthansa

Thu, 26 Feb - Sun, 1 Mar

6:45 a.m. - 8:00 a.m.

YYZ

ORD

2h 15mdirect

11:11 a.m. - 2:01 p.m.

ORD

YYZ

1h 50mdirect

C$ 284Lufthansa

Mon, 9 Mar - Thu, 12 Mar

3:00 p.m. - 12:40 a.m.

YTZ

ORD

10h 40m

1 stop

6:01 p.m. - 10:35 a.m.

ORD

YTZ

15h 34m

1 stop

C$ 375Multiple Airlines

Wed, 18 Mar - Wed, 25 Mar

6:15 p.m. - 12:22 a.m.

YTZ

ORD

7h 07m

1 stop

6:01 p.m. - 10:35 a.m.

ORD

YTZ

15h 34m

1 stop

C$ 376Multiple Airlines

Useful Info

Low season	January
High season	May
Cheapest flight	C$ 155

Best time to beat the crowds but there is an average 9% increase in price.

Most popular time to fly and prices are also 2% lower on average.

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 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

Skokie

Deerfield

Vernon Hills

Elk Grove Village

Downers Grove

Orland Park

Romeoville

Beloit

Hoffman Estates

Bolingbrook

Northbrook

Aurora

Gurnee

Oak Brook

Tinley Park

Munster

Itasca

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

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Chicago O'Hare Airport (ORD)

ORD

C$ 155 Find Cheap Flights from Ontario to Chicago O'Hare Airport

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

Everything you should know

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

Good to know

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

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?

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.

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

Flights to other popular destinations

Flights from domestic origins to Ontario

Choose which airport to fly into in Chicago