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 19m on average. On the other hand, flying from Toronto to Chicago O'Hare Intl Airport takes 5h 08m 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?

United Airlines, Air Canada, and Delta 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 58% 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 August 2026.

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$ 191 Cheap Flights from Region of Ontario to Chicago O'Hare Intl Airport in 2026

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

As of August 2026, 597 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 20% 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 August 2026, there are 85 flights per day flying from Region of Ontario to Chicago O'Hare Intl Airport. The most common time of day flights depart is 11:00a.m., with 45% of flights taking off at noon.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Chicago

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:50 a.m. - 9:53 a.m.

YYZ

ORD

2h 03mdirect

9:18 p.m. - 11:59 p.m.

ORD

YYZ

1h 41mdirect

C$ 286United Airlines

Fri, 4 Sep - Tue, 8 Sep

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

YYZ

ORD

2h 00mdirect

9:18 p.m. - 11:59 p.m.

ORD

YYZ

1h 41mdirect

C$ 286United Airlines

Mon, 5 Oct - Tue, 6 Oct

6:50 p.m. - 7:48 p.m.

YYZ

ORD

1h 58mdirect

9:55 a.m. - 12:40 p.m.

ORD

YYZ

1h 45mdirect

C$ 287Air Canada

Mon, 14 Sep - Mon, 21 Sep

8:05 a.m. - 9:00 a.m.

YYZ

ORD

1h 55mdirect

11:05 a.m. - 6:12 p.m.

ORD

YYZ

6h 07m

1 stop

C$ 287Air Canada

Mon, 28 Sep - Wed, 30 Sep

1:00 p.m. - 2:05 p.m.

YYZ

ORD

2h 05mdirect

3:45 p.m. - 10:56 p.m.

ORD

YYZ

6h 11m

1 stop

C$ 292Multiple Airlines

Wed, 21 Oct - Sat, 31 Oct

11:40 a.m. - 12:45 p.m.

YYZ

ORD

2h 05mdirect

6:50 a.m. - 3:12 p.m.

ORD

YYZ

7h 22m

1 stop

C$ 293American Airlines

Tue, 27 Oct - Sun, 1 Nov

7:00 p.m. - 8:05 p.m.

YYZ

ORD

2h 05mdirect

9:45 a.m. - 12:35 p.m.

ORD

YYZ

1h 50mdirect

C$ 293American Airlines

Thu, 24 Sep - Sun, 27 Sep

6:45 a.m. - 7:54 a.m.

YYZ

ORD

2h 09mdirect

1:55 p.m. - 9:35 p.m.

ORD

YYZ

6h 40m

1 stop

C$ 293Multiple Airlines

Fri, 30 Oct - Tue, 3 Nov

6:15 a.m. - 1:13 p.m.

YYZ

ORD

7h 58m

1 stop

2:00 p.m. - 11:04 p.m.

ORD

YYZ

8h 04m

1 stop

C$ 362WestJet

Mon, 7 Sep - Thu, 10 Sep

6:05 a.m. - 1:04 p.m.

YYZ

ORD

7h 59m

1 stop

9:00 a.m. - 5:25 p.m.

ORD

YYZ

7h 25m

1 stop

C$ 387WestJet

Sun, 27 Sep - Tue, 29 Sep

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

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

Delta

11 Sep

YYZ12:08 p.m.Toronto Pearson Intl

5h 05m

1 stop

ORD4:13 p.m.Chicago O'Hare Intl

18 Sep

ORD8:55 a.m.Chicago O'Hare Intl

7h 25m

1 stop

YYZ5:20 p.m.Toronto Pearson Intl

C$ 341

Delta

22 Aug

YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl

5h 42m

1 stop

ORD10:42 a.m.Chicago O'Hare Intl

25 Aug

ORD1:50 p.m.Chicago O'Hare Intl

9h 02m

1 stop

YUL11:52 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 393

Delta

11 Aug

YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl

8h 08m

1 stop

ORD1:08 p.m.Chicago O'Hare Intl

15 Aug

ORD2:30 p.m.Chicago O'Hare Intl

8h 00m

1 stop

YUL11:30 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 400

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

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

WestJet

12 Aug

YYZ6:15 a.m.Toronto Pearson Intl

7h 58m

1 stop

ORD1:13 p.m.Chicago O'Hare Intl

18 Aug

ORD5:25 p.m.Chicago O'Hare Intl

4h 43m

1 stop

YYZ11:08 p.m.Toronto Pearson Intl

C$ 432

WestJet

11 Aug

YYZ9:50 a.m.Toronto Pearson Intl

7h 32m

1 stop

ORD4:22 p.m.Chicago O'Hare Intl

15 Aug

ORD7:04 a.m.Chicago O'Hare Intl

7h 21m

1 stop

YYZ3:25 p.m.Toronto Pearson Intl

C$ 433

WestJet

10 Aug

YYZ6:15 a.m.Toronto Pearson Intl

7h 58m

1 stop

ORD1:13 p.m.Chicago O'Hare Intl

13 Aug

ORD8:53 a.m.Chicago O'Hare Intl

7h 36m

1 stop

YYZ5:29 p.m.Toronto Pearson Intl

C$ 472

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

Cheapest round-trip

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Fri 4/9

8:50 a.m.-9:53 a.m.

Nonstop2h 03m

Chicago O'Hare Intl

Tue 8/9

9:18 p.m.-11:59 p.m.

Nonstop1h 41m

C$ 286

Quickest round-trip

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Mon 5/10

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

Nonstop2h 00m

Chicago O'Hare Intl

Tue 6/10

9:18 p.m.-11:59 p.m.

Nonstop1h 41m

C$ 286

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Mon 14/9

6:50 p.m.-7:48 p.m.

Nonstop1h 58m

Chicago O'Hare Intl

Mon 21/9

9:55 a.m.-12:40 p.m.

Nonstop1h 45m

C$ 287

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Mon 28/9

8:05 a.m.-9:00 a.m.

Nonstop1h 55m

Chicago O'Hare Intl

Wed 30/9

11:05 a.m.-6:12 p.m.

1 stop6h 07m

C$ 287

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Wed 21/10

1:00 p.m.-2:05 p.m.

Nonstop2h 05m

Chicago O'Hare Intl

Sat 31/10

3:45 p.m.-10:56 p.m.

1 stop6h 11m

C$ 292

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Tue 27/10

11:40 a.m.-12:45 p.m.

Nonstop2h 05m

Chicago O'Hare Intl

Sun 1/11

6:50 a.m.-3:12 p.m.

1 stop7h 22m

C$ 293

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 24/9

7:00 p.m.-8:05 p.m.

Nonstop2h 05m

Chicago O'Hare Intl

Sun 27/9

9:45 a.m.-12:35 p.m.

Nonstop1h 50m

C$ 293

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Fri 30/10

6:45 a.m.-7:54 a.m.

Nonstop2h 09m

Chicago O'Hare Intl

Tue 3/11

1:55 p.m.-9:35 p.m.

1 stop6h 40m

C$ 293

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Mon 7/9

6:15 a.m.-1:13 p.m.

1 stop7h 58m

Chicago O'Hare Intl

Thu 10/9

2:00 p.m.-11:04 p.m.

1 stop8h 04m

C$ 362

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Sun 27/9

6:05 a.m.-1:04 p.m.

1 stop7h 59m

Chicago O'Hare Intl

Tue 29/9

9:00 a.m.-5:25 p.m.

1 stop7h 25m

C$ 387

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, February 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$ 400. 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$ 414.

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$ 694. 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$ 1,026.

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$ 719. 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$ 1,095 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 Island to Chicago O'Hare Intl for the best Ontario - Chicago O'Hare Intl flight prices

How far in advance should I book a flight from Ontario 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$ 427 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$ 245 on momondo.

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

There are 4 cabin classes available to choose from on Region of Ontario to Chicago O'Hare Intl Airport 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 16% 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$ 222
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$ 222. 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$ 329.

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

Frequently asked questions about flying from Ontario to Chicago O'Hare Intl Airport

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 August 2026.
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 De Havilland (Bombardier) DHC-8-400 Dash 8Q, making up 17.86% of the total bookings. Other popular models include Boeing 737-800 with 10.10%, Embraer 175 (Enhanced Winglets) with 9.98%, and Boeing 737-900 with 8.20%.

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$ 226	Free Cancellation	Rating 8.0 449 reviews	Search Porter Airlines flights
American Airlines	PriceFrom C$ 253	Free Cancellation	Rating 7.1 11,849 reviews	Search American Airlines flights
Air Canada	PriceFrom C$ 276	Free Cancellation	Rating 7.1 11,415 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 276	Free Cancellation	Rating 7.4 10,063 reviews	Search United Airlines flights
WestJet	PriceFrom C$ 374	Free Cancellation	Rating 7.2 3,423 reviews	Search WestJet flights

Schaumburg

Glenview

Waukegan

Rosemont

Des Plaines

Merrillville

Kenosha

Northbrook

Skokie

Tinley Park

Evanston

Downers Grove

Great Lakes

Hammond

Naperville

Harvey

Munster

Hoffman Estates

Elmhurst

Valparaiso

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.

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Cheap flights from Ontario to Chicago from C$ 191

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 14/10. 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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Delta flights from Region of Ontario to Chicago O'Hare Intl Airport

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

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

Our best WestJet 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

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?

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

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

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

What is the cheapest airline that flies 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?

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

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

Best price found

Fastest flight time

Direct flights

Frequently asked questions about flying from 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?

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

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List of cabin classes available on flights landing in Chicago. Availability may vary depending on flight origin and airline.

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