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 6h 12m 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.

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

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

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 68% 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.

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 October 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$ 167 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 October 2025, 671 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 Mon, with 15% 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 October 2025, there are 95 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 46% of flights taking off at noon.

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Find the cheapest flights from Ontario to Chicago

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

5:15 p.m. - 10:34 p.m.YYZ-ORD

6h 19m1 stop

6:04 a.m. - 4:30 p.m.ORD-YYZ

9h 26m1 stop

C$ 257American Airlines

Find Deal

Fri, 16 Jan - Mon, 19 Jan

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

2h 05mdirect

2:00 p.m. - 4:39 p.m.ORD-YYZ

1h 39mdirect

C$ 264Multiple Airlines

Find Deal

Sat, 20 Dec - Mon, 5 Jan

4:44 p.m. - 5:44 p.m.YYZ-ORD

2h 00mdirect

6:00 a.m. - 3:00 p.m.ORD-YYZ

8h 00m1 stop

C$ 269American Airlines

Find Deal

Fri, 9 Jan - Sat, 7 Feb

12:05 p.m. - 1:01 p.m.YYZ-ORD

1h 56mdirect

3:35 p.m. - 11:04 p.m.ORD-YYZ

6h 29m1 stop

C$ 271Air Canada

Find Deal

Fri, 16 Jan - Mon, 19 Jan

2:57 p.m. - 11:35 p.m.YYZ-ORD

9h 38m1 stop

8:15 p.m. - 10:54 p.m.ORD-YYZ

1h 39mdirect

C$ 286Multiple Airlines

Find Deal

Thu, 1 Jan - Mon, 5 Jan

11:10 a.m. - 3:10 p.m.YUL-ORD

5h 00m1 stop

12:50 p.m. - 4:01 p.m.ORD-YUL

2h 11mdirect

C$ 294Air Canada

Find Deal

Mon, 9 Feb - Sun, 15 Feb

6:30 a.m. - 2:56 p.m.YYZ-ORD

9h 26m1 stop

5:45 p.m. - 11:02 p.m.ORD-YYZ

4h 17m1 stop

C$ 294Delta

Find Deal

Wed, 1 Apr - Sat, 4 Apr

2:45 p.m. - 11:54 p.m.YUL-ORD

10h 09m1 stop

6:00 a.m. - 1:49 p.m.ORD-YUL

6h 49m1 stop

C$ 298Delta

Find Deal

Thu, 15 Jan - Sun, 18 Jan

5:30 p.m. - 6:50 p.m.YYZ-ORD

2h 20mdirect

6:05 a.m. - 11:48 a.m.ORD-YYZ

4h 43m1 stop

C$ 304United Airlines

Find Deal

Fri, 6 Feb - Sun, 8 Feb

6:40 p.m. - 11:35 p.m.YYZ-ORD

5h 55m1 stop

9:20 p.m. - 11:59 p.m.ORD-YYZ

1h 39mdirect

C$ 311United Airlines

Find Deal

Thu, 1 Jan - Sun, 4 Jan

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

16 Jan

YYZ5:15 p.m.Toronto Pearson Intl

6h 19m

1 stop

ORD10:34 p.m.Chicago O'Hare Intl

19 Jan

ORD6:04 a.m.Chicago O'Hare Intl

9h 26m

1 stop

YYZ4:30 p.m.Toronto Pearson Intl

C$ 257

Find similar

American Airlines

9 Jan

YYZ4:44 p.m.Toronto Pearson Intl

2h 00m

ORD5:44 p.m.Chicago O'Hare Intl

7 Feb

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

8h 00m

1 stop

YYZ3:00 p.m.Toronto Pearson Intl

C$ 269

Find similar

American Airlines

23 Jan

YUL3:52 p.m.Montreal Pierre Elliott Trudeau Intl

3h 00m

ORD5:52 p.m.Chicago O'Hare Intl

25 Jan

ORD6:40 a.m.Chicago O'Hare Intl

7h 40m

1 stop

YUL3:20 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 275

Find similar

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

16 Jan

YYZ12:05 p.m.Toronto Pearson Intl

1h 56m

ORD1:01 p.m.Chicago O'Hare Intl

19 Jan

ORD3:35 p.m.Chicago O'Hare Intl

6h 29m

1 stop

YYZ11:04 p.m.Toronto Pearson Intl

C$ 271

Find similar

Air Canada

9 Feb

YUL11:10 a.m.Montreal Pierre Elliott Trudeau Intl

5h 00m

1 stop

ORD3:10 p.m.Chicago O'Hare Intl

15 Feb

ORD12:50 p.m.Chicago O'Hare Intl

2h 11m

YUL4:01 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 294

Find similar

Air Canada

6 Nov

YYZ2:15 p.m.Toronto Pearson Intl

1h 55m

ORD3:10 p.m.Chicago O'Hare Intl

9 Nov

ORD10:00 a.m.Chicago O'Hare Intl

1h 40m

YYZ12:40 p.m.Toronto Pearson Intl

C$ 298

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

Fri 16/1

5:15 p.m.-10:34 p.m.

1 stop6h 19m

Chicago O'Hare Intl

Mon 19/1

6:04 a.m.-4:30 p.m.

1 stop9h 26m

C$ 257

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Sat 20/12

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

Nonstop2h 05m

Chicago O'Hare Intl

Mon 5/1

2:00 p.m.-4:39 p.m.

Nonstop1h 39m

C$ 264

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Fri 9/1

4:44 p.m.-5:44 p.m.

Nonstop2h 00m

Chicago O'Hare Intl

Sat 7/2

6:00 a.m.-3:00 p.m.

1 stop8h 00m

C$ 269

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Fri 16/1

12:05 p.m.-1:01 p.m.

Nonstop1h 56m

Chicago O'Hare Intl

Mon 19/1

3:35 p.m.-11:04 p.m.

1 stop6h 29m

C$ 271

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 1/1

2:57 p.m.-11:35 p.m.

1 stop9h 38m

Chicago O'Hare Intl

Mon 5/1

8:15 p.m.-10:54 p.m.

Nonstop1h 39m

C$ 286

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Mon 9/2

11:10 a.m.-3:10 p.m.

1 stop5h 00m

Chicago O'Hare Intl

Sun 15/2

12:50 p.m.-4:01 p.m.

Nonstop2h 11m

C$ 294

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Wed 1/4

6:30 a.m.-2:56 p.m.

1 stop9h 26m

Chicago O'Hare Intl

Sat 4/4

5:45 p.m.-11:02 p.m.

1 stop4h 17m

C$ 294

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 15/1

2:45 p.m.-11:54 p.m.

1 stop10h 09m

Chicago O'Hare Intl

Sun 18/1

6:00 a.m.-1:49 p.m.

1 stop6h 49m

C$ 298

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Fri 6/2

5:30 p.m.-6:50 p.m.

Nonstop2h 20m

Chicago O'Hare Intl

Sun 8/2

6:05 a.m.-11:48 a.m.

1 stop4h 43m

C$ 304

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 1/1

6:40 p.m.-11:35 p.m.

1 stop5h 55m

Chicago O'Hare Intl

Sun 4/1

9:20 p.m.-11:59 p.m.

Nonstop1h 39m

C$ 311

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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, May 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$ 367. The month of November is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Region of Ontario averaging around C$ 382.

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$ 722. 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$ 1,151.

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$ 635. 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 in the afternoon when prices are C$ 1,169 on average. Flights to Chicago O'Hare Intl Airport from Region of Ontario in the afternoon 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$ 408 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$ 301 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?

You could potentially save up to 1% on your flight if you consider stops on a Region of Ontario to Chicago O'Hare Intl Airport flight.

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$ 352
Fastest flight time	1h 54m
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$ 352. 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$ 519.

The fastest flight from Region of Ontario to Chicago O'Hare Intl Airport takes 1h 54m

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 October 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 13.36% of the total bookings. Other popular models include De Havilland (Bombardier) DHC-8-400 Dash 8Q with 12.87%, Boeing 737 MAX 8 with 9.61%, and Boeing 737-800 with 9.11%.

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$ 225	Free Cancellation	Rating 8.0 375 reviews	Search Porter Airlines flights
Air Canada	PriceFrom C$ 264	Free Cancellation	Rating 7.1 10,245 reviews	Search Air Canada flights
American Airlines	PriceFrom C$ 270	Free Cancellation	Rating 7.2 11,040 reviews	Search American Airlines flights
United Airlines	PriceFrom C$ 282	Free Cancellation	Rating 7.4 8,957 reviews	Search United Airlines flights
WestJet	PriceFrom C$ 381	Free Cancellation	Rating 7.2 3,114 reviews	Search WestJet flights

Schaumburg

Hoffman Estates

Tinley Park

Munster

Hammond

Naperville

Glenview

Great Lakes

Wheeling

Des Plaines

Harvard

Merrillville

Elk Grove Village

Oak Brook

Elmhurst

Kenosha

Skokie

Rosemont

Rockford

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$ 167

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 6/1. 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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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

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

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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

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

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?

You could potentially save up to 1% on your flight if you consider stops on a Region of Ontario to Chicago O'Hare Intl Airport flight.

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

American Airlines, Delta, and United 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 October 2025, there are 95 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 46% 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 October 2025, 671 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 Mon, with 15% 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