How long does it take to fly to Chicago O'Hare Intl Airport?

Flight times vary depending on what airport in Region of Ontario you fly out of and what airport in Chicago O'Hare Intl Airport you fly into. For example, flying from Ottawa to Chicago O'Hare Intl Airport takes 2h 08m on average. On the other hand, flying from Toronto to Chicago O'Hare Intl Airport takes 5h 11m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo to see if there are any available for your route.

Which airlines fly to Chicago O'Hare Intl Airport?

Air Canada, United Airlines and American Airlines are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from Region of Ontario according to our data. Air Canada is the first choice among our users, with 64% of people opting to fly with this airline when travelling to Chicago O'Hare Intl Airport. Keep in mind that there are 5 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Ontario to Chicago O'Hare Intl?

United Airlines, Air Canada, and American Airlines are the most popular carriers operating from Ontario to Chicago O'Hare Intl

When did momondo last update prices for flights from Ontario to Chicago O'Hare Intl Airport?

Prices for flights from Ontario to Chicago O'Hare Intl Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Ontario to Chicago O'Hare Intl Airport?

There are 5 operators available for flights from Ontario to Chicago O'Hare Intl Airport as of December 2025.

How old do you have to be to fly from Ontario to Chicago O'Hare Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Chicago O'Hare Intl Airport.

What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

The travel and health documents you'll need for your trip to Chicago O'Hare Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago O'Hare Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 164 Cheap Flights from Region of Ontario to Chicago O'Hare Intl Airport in 2025/26

Q: How many flights depart from Region of Ontario to Chicago O'Hare Intl Airport on average per week?

As of December 2025, 513 flights take off from Region of Ontario and land in Chicago O'Hare Intl Airport each week. The most common flight departure day for this route is Fri, with 18% of weekly flights taking off on this day.

Q: How many flights depart from Region of Ontario to Chicago O'Hare Intl Airport on average per day?

As of December 2025, there are 73 flights per day flying from Region of Ontario to Chicago O'Hare Intl Airport. The most common time of day flights depart is 6:00a.m., with 50% of flights taking off at noon.

1 adult

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Find the cheapest flights from Ontario to Chicago

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One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:45 p.m. - 7:45 p.m.

YYZ

ORD

2h 00mdirect

8:40 p.m. - 11:19 p.m.

ORD

YYZ

1h 39mdirect

C$ 246Air Canada

Sun, 25 Jan - Fri, 13 Feb

4:50 p.m. - 5:48 p.m.

YYZ

ORD

1h 58mdirect

8:00 a.m. - 10:40 a.m.

ORD

YYZ

1h 40mdirect

C$ 248Air Canada

Tue, 27 Jan - Tue, 3 Feb

10:30 a.m. - 5:42 p.m.

YYZ

ORD

8h 12m1 stop

8:09 a.m. - 3:30 p.m.

ORD

YYZ

6h 21m1 stop

C$ 253American Airlines

Thu, 5 Feb - Sun, 8 Feb

3:30 p.m. - 4:28 p.m.

YYZ

ORD

1h 58mdirect

9:15 p.m. - 11:59 p.m.

ORD

YYZ

1h 44mdirect

C$ 256United Airlines

Wed, 4 Feb - Fri, 6 Feb

9:00 p.m. - 10:05 p.m.

YYZ

ORD

2h 05mdirect

4:50 p.m. - 7:45 p.m.

ORD

YYZ

1h 55mdirect

C$ 257United Airlines

Thu, 5 Feb - Sun, 8 Feb

1:14 p.m. - 2:14 p.m.

YYZ

ORD

2h 00mdirect

7:20 a.m. - 3:00 p.m.

ORD

YYZ

6h 40m1 stop

C$ 263American Airlines

Mon, 26 Jan - Mon, 2 Feb

12:15 p.m. - 9:03 p.m.

YYZ

ORD

33h 48m3 stops

6:05 a.m. - 11:20 p.m.

ORD

YYZ

16h 15m2 stops

C$ 266Multiple Airlines

Sun, 25 Jan - Wed, 28 Jan

12:52 p.m. - 4:41 p.m.

YUL

ORD

4h 49m1 stop

6:45 a.m. - 4:53 p.m.

ORD

YUL

9h 08m1 stop

C$ 297Delta

Sat, 14 Feb - Tue, 17 Feb

1:02 p.m. - 4:38 p.m.

YUL

ORD

4h 36m1 stop

5:35 p.m. - 11:26 p.m.

ORD

YUL

4h 51m1 stop

C$ 300Delta

Thu, 5 Feb - Sun, 8 Feb

7:00 a.m. - 8:30 p.m.

YOW

ORD

14h 30m1 stop

7:21 p.m. - 2:58 p.m.

ORD

YOW

18h 37m1 stop

C$ 326Multiple Airlines

Thu, 8 Jan - Fri, 9 Jan

Air Canada flights from Region of Ontario to Chicago O'Hare Intl Airport

Our best Air Canada deals on Region of Ontario to Chicago O'Hare Intl Airport flight tickets

Air Canada

25 Jan

YYZ6:45 p.m.Toronto Pearson Intl

2h 00m

ORD7:45 p.m.Chicago O'Hare Intl

13 Feb

ORD8:40 p.m.Chicago O'Hare Intl

1h 39m

YYZ11:19 p.m.Toronto Pearson Intl

C$ 246

Find similar

Air Canada

27 Jan

YYZ4:50 p.m.Toronto Pearson Intl

1h 58m

ORD5:48 p.m.Chicago O'Hare Intl

3 Feb

ORD8:00 a.m.Chicago O'Hare Intl

1h 40m

YYZ10:40 a.m.Toronto Pearson Intl

C$ 248

Find similar

Air Canada

5 Feb

YYZ9:00 a.m.Toronto Pearson Intl

6h 55m

1 stop

ORD2:55 p.m.Chicago O'Hare Intl

8 Feb

ORD8:40 p.m.Chicago O'Hare Intl

1h 39m

YYZ11:19 p.m.Toronto Pearson Intl

C$ 259

Find similar

American Airlines flights from Region of Ontario to Chicago O'Hare Intl Airport

Our best American Airlines deals on Region of Ontario to Chicago O'Hare Intl Airport flight tickets

American Airlines

5 Feb

YYZ10:30 a.m.Toronto Pearson Intl

8h 12m

1 stop

ORD5:42 p.m.Chicago O'Hare Intl

8 Feb

ORD8:09 a.m.Chicago O'Hare Intl

6h 21m

1 stop

YYZ3:30 p.m.Toronto Pearson Intl

C$ 253

Find similar

American Airlines

26 Jan

YYZ1:14 p.m.Toronto Pearson Intl

2h 00m

ORD2:14 p.m.Chicago O'Hare Intl

2 Feb

ORD7:20 a.m.Chicago O'Hare Intl

6h 40m

1 stop

YYZ3:00 p.m.Toronto Pearson Intl

C$ 263

Find similar

American Airlines

5 Feb

YYZ6:00 a.m.Toronto Pearson Intl

2h 15m

ORD7:15 a.m.Chicago O'Hare Intl

11 Feb

ORD6:00 a.m.Chicago O'Hare Intl

4h 59m

1 stop

YYZ11:59 a.m.Toronto Pearson Intl

C$ 264

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Ontario to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Sun 25/1

6:45 p.m.-7:45 p.m.

Nonstop2h 00m

Chicago O'Hare Intl

Fri 13/2

8:40 p.m.-11:19 p.m.

Nonstop1h 39m

C$ 246

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Tue 27/1

4:50 p.m.-5:48 p.m.

Nonstop1h 58m

Chicago O'Hare Intl

Tue 3/2

8:00 a.m.-10:40 a.m.

Nonstop1h 40m

C$ 248

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 5/2

10:30 a.m.-5:42 p.m.

1 stop8h 12m

Chicago O'Hare Intl

Sun 8/2

8:09 a.m.-3:30 p.m.

1 stop6h 21m

C$ 253

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Wed 4/2

3:30 p.m.-4:28 p.m.

Nonstop1h 58m

Chicago O'Hare Intl

Fri 6/2

9:15 p.m.-11:59 p.m.

Nonstop1h 44m

C$ 256

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 5/2

9:00 p.m.-10:05 p.m.

Nonstop2h 05m

Chicago O'Hare Intl

Sun 8/2

4:50 p.m.-7:45 p.m.

Nonstop1h 55m

C$ 257

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Mon 26/1

1:14 p.m.-2:14 p.m.

Nonstop2h 00m

Chicago O'Hare Intl

Mon 2/2

7:20 a.m.-3:00 p.m.

1 stop6h 40m

C$ 263

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Sun 25/1

12:15 p.m.-9:03 p.m.

3 stops33h 48m

Chicago O'Hare Intl

Wed 28/1

6:05 a.m.-11:20 p.m.

2 stops16h 15m

C$ 266

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 14/2

12:52 p.m.-4:41 p.m.

1 stop4h 49m

Chicago O'Hare Intl

Tue 17/2

6:45 a.m.-4:53 p.m.

1 stop9h 08m

C$ 297

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 5/2

1:02 p.m.-4:38 p.m.

1 stop4h 36m

Chicago O'Hare Intl

Sun 8/2

5:35 p.m.-11:26 p.m.

1 stop4h 51m

C$ 300

OttawaChicago

YOW - ORD

YOWORD

Ottawa

Thu 8/1

7:00 a.m.-8:30 p.m.

1 stop14h 30m

Chicago O'Hare Intl

Fri 9/1

7:21 p.m.-2:58 p.m.

1 stop18h 37m

C$ 326

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Region of Ontario to Chicago O'Hare Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

In general, November is the cheapest month to fly from Region of Ontario to Chicago O'Hare Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 297. The month of May is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Region of Ontario averaging around C$ 362.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Friday when prices can be found for as low as C$ 673. This is often the case because there is less demand to fly during this day of the week. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Region of Ontario to Chicago O'Hare Intl Airport for around C$ 1,091.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

In the evening is the cheapest time of day to fly from Region of Ontario to Chicago O'Hare Intl Airport when you can find flight prices for as low as C$ 627. Flying to Chicago O'Hare Intl Airport in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 1,112 on average. Flights to Chicago O'Hare Intl Airport from Region of Ontario at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Ontario to Chicago O'Hare Intl flight route?

Fly from Toronto Pearson Intl to Chicago O'Hare Intl for the best Ontario - Chicago O'Hare Intl flight prices

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around C$ 401 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Region of Ontario for as low as C$ 269 on momondo.

What cabin class options are available on Ontario to Chicago O'Hare Intl flights?

There are 4 cabin classes available to choose from on Ontario to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Region of Ontario to Chicago O'Hare Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Region of Ontario to Chicago O'Hare Intl Airport.

Cheap Region of Ontario to Chicago O'Hare Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Chicago O'Hare Intl Airport

Best price found	C$ 282
Fastest flight time	1h 55m
Direct flights	Every day

The best one-way flight to Chicago O'Hare Intl Airport from Region of Ontario in the past 72 hours is C$ 282. The best round-trip flight deal from Region of Ontario to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is C$ 522.

The fastest flight from Region of Ontario to Chicago O'Hare Intl Airport takes 1h 55m

Direct flights go from Region of Ontario to Chicago O'Hare Intl Airport every day.

Search flight deals

When did momondo last update prices for flights from Ontario to Chicago O'Hare Intl Airport?
Prices for flights from Ontario to Chicago O'Hare Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Ontario to Chicago O'Hare Intl Airport?
There are 5 operators available for flights from Ontario to Chicago O'Hare Intl Airport as of December 2025.
How old do you have to be to fly from Ontario to Chicago O'Hare Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Chicago O'Hare Intl Airport.
What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?
The travel and health documents you'll need for your trip to Chicago O'Hare Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago O'Hare Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Region of Ontario to Chicago O'Hare Intl Airport?
Based on momondo bookings for flights between Region of Ontario and Chicago O'Hare Intl Airport, the leading plane model is Embraer 175 (Enhanced Winglets), making up 11.89% of the total bookings. Other popular models include Embraer 195 E2 with 11.84%, De Havilland (Bombardier) DHC-8-400 Dash 8Q with 11.33%, and Boeing 737-800 with 9.10%.

Best airlines flying from Region of Ontario to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Region of Ontario to Chicago O'Hare Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
Porter Airlines	PriceFrom C$ 222	Free Cancellation	Rating 8.0 399 reviews	Search Porter Airlines flights
Air Canada	PriceFrom C$ 258	Free Cancellation	Rating 7.1 10,520 reviews	Search Air Canada flights
American Airlines	PriceFrom C$ 259	Free Cancellation	Rating 7.2 11,053 reviews	Search American Airlines flights
United Airlines	PriceFrom C$ 265	Free Cancellation	Rating 7.4 9,094 reviews	Search United Airlines flights
WestJet	PriceFrom C$ 368	Free Cancellation	Rating 7.2 3,200 reviews	Search WestJet flights

Schaumburg

Rosemont

Hoffman Estates

Northbrook

Tinley Park

Munster

Skokie

Hammond

Harvey

Naperville

Glenview

Great Lakes

Wheeling

Elmhurst

Harvard

Merrillville

Elk Grove Village

Oak Brook

Kenosha

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Chicago?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Chicago for you.

Can I find flights from Ontario to Chicago with flexible booking policies on momondo?

Flights from Ontario to Chicago with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ontario to Chicago?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chicago from Ontario.

I’m not ready to book a flight from Ontario to Chicago right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Chicago now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Chicago and let you know when they change.

An easier way to manage your Chicago O'Hare Intl Airport trip

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Cheap flights from Ontario to Chicago from C$ 164

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Chicago departing on 11/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Air Canada flights from Region of Ontario to Chicago O'Hare Intl Airport

Our best Air Canada deals on Region of Ontario to Chicago O'Hare Intl Airport flight tickets

American Airlines flights from Region of Ontario to Chicago O'Hare Intl Airport

Our best American Airlines deals on Region of Ontario to Chicago O'Hare Intl Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Ontario to Chicago O'Hare Intl Airport that are best for you.

See travel insights to Chicago from

How to get the cheapest flight ticket from Region of Ontario to Chicago O'Hare Intl Airport

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

What is the cheapest Ontario to Chicago O'Hare Intl flight route?

Fly from Toronto Pearson Intl to Chicago O'Hare Intl for the best Ontario - Chicago O'Hare Intl flight prices

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

What cabin class options are available on Ontario to Chicago O'Hare Intl flights?

There are 4 cabin classes available to choose from on Ontario to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Region of Ontario to Chicago O'Hare Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Region of Ontario to Chicago O'Hare Intl Airport.

What is the cheapest airline that flies from Ontario to Chicago O'Hare Intl?

United Airlines, Air Canada, and American Airlines are the most popular carriers operating from Ontario to Chicago O'Hare Intl

Which airlines fly to Chicago O'Hare Intl Airport?

How many flights depart from Region of Ontario to Chicago O'Hare Intl Airport on average per day?

As of December 2025, there are 73 flights per day flying from Region of Ontario to Chicago O'Hare Intl Airport. The most common time of day flights depart is 6:00a.m., with 50% of flights taking off at noon.

How many flights depart from Region of Ontario to Chicago O'Hare Intl Airport on average per week?

As of December 2025, 513 flights take off from Region of Ontario and land in Chicago O'Hare Intl Airport each week. The most common flight departure day for this route is Fri, with 18% of weekly flights taking off on this day.

How long does it take to fly to Chicago O'Hare Intl Airport?

Cheap Region of Ontario to Chicago O'Hare Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Chicago O'Hare Intl Airport

Best price found

Fastest flight time

Direct flights

When did momondo last update prices for flights from Ontario to Chicago O'Hare Intl Airport?

How many operators does momondo search for flights from Ontario to Chicago O'Hare Intl Airport?

How old do you have to be to fly from Ontario to Chicago O'Hare Intl Airport?

What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

What is the most popular plane model from Region of Ontario to Chicago O'Hare Intl Airport?

Best airlines flying from Region of Ontario to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Region of Ontario to Chicago O'Hare Intl Airport with momondo

Travelling to a place near Chicago?

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Chicago?

Can I find flights from Ontario to Chicago with flexible booking policies on momondo?

How can momondo help me find flights from Ontario to Chicago?

I’m not ready to book a flight from Ontario to Chicago right now. Can momondo alert me if prices change?

An easier way to manage your Chicago O'Hare Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Chicago

Popular Cities in the United States

Popular flights according to clicks in the last 7 days on momondo