How long does it take to fly to Chicago?

Average flight duration from Region of Ontario to Chicago depends on which airport you fly into and out of. Flying from Toronto to Chicago O'Hare Intl Airport is 2h 02m on average, while flying from Ottawa to Chicago O'Hare Intl Airport is 2h 19m on average. Chicago O'Hare Intl Airport is the most popular airport in Chicago.

How many flights depart from Region of Ontario to Chicago on average per day?

The number of flights available between Region of Ontario and Chicago is 112 per day as of September 2026. The most frequent departure time is 1:00PM, with 45% of daily flights leaving in the afternoon.

What airlines fly to Chicago?

Air Canada, United Airlines and Porter Airlines are the top three most popular airlines that fly to Chicago from Region of Ontario according to our data. Air Canada is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Chicago. Keep in mind that there are 4 different airlines that fly to Chicago 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?

United Airlines, Porter Airlines, and Delta are the most popular carriers operating from Ontario to Chicago

How many flights depart from Region of Ontario to Chicago on average per week?

As of September 2026, 787 flights take off from Region of Ontario and land in Chicago each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.

When did momondo last update prices for flights from Ontario to Chicago?

Prices for flights from Ontario to Chicago are refreshed on a daily basis.

How many operators does momondo search for flights from Ontario to Chicago?

The number of operators available for flights from Ontario to Chicago is 4 as of September 2026.

How old do you have to be to fly from Ontario to Chicago?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Chicago.

What documentation or ID do you need to fly to Chicago?

The required travel and health documents for your Chicago trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$130 Cheap Flights from Ontario to Chicago in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Chicago

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

12:25 pm - 1:23 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

1h 58mnonstop

9:55 am - 12:40 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 45mnonstop

$198Air Canada

Tue, Oct 6 - Sat, Oct 10

8:05 am - 9:00 amYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

1h 55mnonstop

3:40 pm - 11:18 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

6h 38m1 stop Montreal Pierre Elliott Trudeau Intl

$201Air Canada

Tue, Oct 6 - Sat, Oct 10

7:09 am - 8:39 amYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 30mnonstop

2:50 pm - 5:41 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 51mnonstop

$205American Airlines

Wed, Nov 4 - Wed, Nov 4

6:25 pm - 7:30 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 05mnonstop

9:42 am - 12:32 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 50mnonstop

$205American Airlines

Thu, Oct 29 - Thu, Nov 5

11:00 am - 12:00 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 00mnonstop

7:09 am - 9:54 amORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 45mnonstop

$205United Airlines

Fri, Oct 2 - Mon, Oct 5

7:26 pm - 8:48 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 22mnonstop

7:03 am - 9:47 amORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 44mnonstop

$205United Airlines

Fri, Oct 30 - Sat, Oct 31

1:45 pm - 2:35 pmYTZ Toronto Island-MDW Chicago Midway

1h 50mnonstop

3:20 pm - 6:00 pmMDW Chicago Midway-YTZ Toronto Island

1h 40mnonstop

$205Porter Airlines

Sat, Oct 3 - Mon, Oct 5

8:50 am - 9:48 amYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

1h 58mnonstop

9:55 am - 12:40 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 45mnonstop

$205Multiple Airlines

Fri, Sep 25 - Tue, Sep 29

9:00 pm - 10:06 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 06mnonstop

8:40 pm - 11:26 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 46mnonstop

$205Multiple Airlines

Mon, Oct 5 - Sat, Oct 10

10:10 am - 11:00 amYTZ Toronto Island-MDW Chicago Midway

1h 50mnonstop

11:45 am - 2:25 pmMDW Chicago Midway-YTZ Toronto Island

1h 40mnonstop

$207Porter Airlines

Sun, Oct 11 - Wed, Oct 14

Cheap last minute flights

Enter your travel dates to find the best prices.

1:45 pm - 2:35 pmYTZ Toronto Island-MDW Chicago Midway

1h 50mnonstop

3:20 pm - 6:00 pmMDW Chicago Midway-YTZ Toronto Island

1h 40mnonstop

$245Porter Airlines

Tue, Sep 22 - Fri, Sep 25

10:10 am - 11:00 amYTZ Toronto Island-MDW Chicago Midway

1h 50mnonstop

11:45 am - 2:25 pmMDW Chicago Midway-YTZ Toronto Island

1h 40mnonstop

$245Porter Airlines

Tue, Sep 22 - Tue, Sep 29

9:30 am - 2:52 pmYTZ Toronto Island-ORD Chicago O'Hare Intl

6h 22m1 stop Montreal Pierre Elliott Trudeau Intl

2:00 pm - 4:48 pmORD Chicago O'Hare Intl-YTZ Toronto Island

1h 48mnonstop

$268Air Canada

Tue, Sep 22 - Thu, Oct 15

9:30 am - 2:52 pmYTZ Toronto Island-ORD Chicago O'Hare Intl

6h 22m1 stop Montreal Pierre Elliott Trudeau Intl

2:00 pm - 4:48 pmORD Chicago O'Hare Intl-YTZ Toronto Island

1h 48mnonstop

$268Air Canada

Tue, Sep 22 - Wed, Oct 21

8:50 am - 9:53 amYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mnonstop

7:09 am - 9:54 amORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 45mnonstop

$270United Airlines

Sun, Sep 20 - Wed, Sep 30

7:00 am - 8:00 amYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 00mnonstop

9:20 pm - 11:59 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 39mnonstop

$270United Airlines

Mon, Sep 21 - Fri, Oct 16

8:50 am - 9:53 amYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mnonstop

5:35 pm - 8:18 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 43mnonstop

$270Multiple Airlines

Sun, Sep 20 - Tue, Sep 29

7:00 am - 8:00 amYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 00mnonstop

8:40 pm - 11:26 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 46mnonstop

$270Multiple Airlines

Fri, Sep 18 - Fri, Sep 25

6:04 pm - 10:35 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

5h 31m1 stop Philadelphia

4:00 pm - 11:46 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

6h 46m1 stop Philadelphia

$295American Airlines

Mon, Sep 21 - Fri, Oct 2

3:13 pm - 4:18 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 05mnonstop

2:51 pm - 5:44 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 53mnonstop

$354American Airlines

Sat, Sep 19 - Sun, Sep 20

Cheap direct flights

Enter your travel dates to find the best prices.

12:25 pm - 1:23 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

1h 58mnonstop

9:55 am - 12:40 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 45mnonstop

$198Air Canada

Tue, Oct 6 - Sat, Oct 10

7:09 am - 8:39 amYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 30mnonstop

2:50 pm - 5:41 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 51mnonstop

$205American Airlines

Wed, Nov 4 - Wed, Nov 4

11:00 am - 12:00 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 00mnonstop

7:09 am - 9:54 amORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 45mnonstop

$205United Airlines

Fri, Oct 2 - Mon, Oct 5

7:26 pm - 8:48 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 22mnonstop

7:03 am - 9:47 amORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 44mnonstop

$205United Airlines

Fri, Oct 30 - Sat, Oct 31

1:45 pm - 2:35 pmYTZ Toronto Island-MDW Chicago Midway

1h 50mnonstop

3:20 pm - 6:00 pmMDW Chicago Midway-YTZ Toronto Island

1h 40mnonstop

$205Porter Airlines

Sat, Oct 3 - Mon, Oct 5

8:05 am - 9:00 amYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

1h 55mnonstop

8:40 pm - 11:23 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 43mnonstop

$205Air Canada

Sat, Oct 24 - Mon, Oct 26

6:25 pm - 7:30 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 05mnonstop

9:42 am - 12:32 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 50mnonstop

$205American Airlines

Thu, Oct 29 - Thu, Nov 5

8:50 am - 9:48 amYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

1h 58mnonstop

9:55 am - 12:40 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 45mnonstop

$205Multiple Airlines

Fri, Sep 25 - Tue, Sep 29

9:00 pm - 10:06 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 06mnonstop

8:40 pm - 11:26 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 46mnonstop

$205Multiple Airlines

Mon, Oct 5 - Sat, Oct 10

10:10 am - 11:00 amYTZ Toronto Island-MDW Chicago Midway

1h 50mnonstop

11:45 am - 2:25 pmMDW Chicago Midway-YTZ Toronto Island

1h 40mnonstop

$207Porter Airlines

Sun, Oct 11 - Wed, Oct 14

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Air Canada flights from Region of Ontario to Chicago

Our best Air Canada deals on Region of Ontario to Chicago flight tickets

Air Canada

Oct 6

YYZ12:25 pmToronto Pearson Intl

1h 58m

ORD1:23 pmChicago O'Hare Intl

Oct 10

ORD9:55 amChicago O'Hare Intl

1h 45m

YYZ12:40 pmToronto Pearson Intl

$198

Air Canada

Oct 6

YYZ8:05 amToronto Pearson Intl

1h 55m

ORD9:00 amChicago O'Hare Intl

Oct 10

ORD3:40 pmChicago O'Hare Intl

6h 38m

1 stop

YYZ11:18 pmToronto Pearson Intl

$201

Air Canada

Oct 1

YTZ10:45 amToronto Island

5h 07m

1 stop

ORD2:52 pmChicago O'Hare Intl

Oct 4

ORD8:45 amChicago O'Hare Intl

6h 05m

1 stop

YTZ3:50 pmToronto Island

$205

United Airlines flights from Region of Ontario to Chicago

Our best United Airlines deals on Region of Ontario to Chicago flight tickets

United Airlines

Oct 23

YYZ7:00 amToronto Pearson Intl

2h 00m

ORD8:00 amChicago O'Hare Intl

Oct 25

ORD9:21 pmChicago O'Hare Intl

1h 38m

YYZ11:59 pmToronto Pearson Intl

$205

United Airlines

Oct 24

YYZ11:00 amToronto Pearson Intl

2h 00m

ORD12:00 pmChicago O'Hare Intl

Oct 26

ORD4:40 pmChicago O'Hare Intl

5h 46m

1 stop

YYZ11:26 pmToronto Pearson Intl

$214

United Airlines

Oct 30

YYZ7:44 pmToronto Pearson Intl

5h 17m

1 stop

ORD12:01 amChicago O'Hare Intl

Nov 2

ORD6:05 pmChicago O'Hare Intl

4h 47m

1 stop

YYZ11:52 pmToronto Pearson Intl

$230

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoChicago

YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl

YYZORD

Toronto Pearson Intl

Tue 10/6

12:25 pm-1:23 pm

Nonstop1h 58m

Chicago O'Hare Intl

Sat 10/10

9:55 am-12:40 pm

Nonstop1h 45m

$198

TorontoChicago

YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl

YYZORD

Toronto Pearson Intl

Tue 10/6

8:05 am-9:00 am

Nonstop1h 55m

Chicago O'Hare Intl

Sat 10/10

3:40 pm-11:18 pm

1 stop6h 38m

$201

TorontoChicago

YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl

YYZORD

Toronto Pearson Intl

Wed 11/4

7:09 am-8:39 am

Nonstop2h 30m

Chicago O'Hare Intl

Wed 11/4

2:50 pm-5:41 pm

Nonstop1h 51m

$205

TorontoChicago

YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl

YYZORD

Toronto Pearson Intl

Thu 10/29

6:25 pm-7:30 pm

Nonstop2h 05m

Chicago O'Hare Intl

Thu 11/5

9:42 am-12:32 pm

Nonstop1h 50m

$205

TorontoChicago

YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl

YYZORD

Toronto Pearson Intl

Fri 10/2

11:00 am-12:00 pm

Nonstop2h 00m

Chicago O'Hare Intl

Mon 10/5

7:09 am-9:54 am

Nonstop1h 45m

$205

TorontoChicago

YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl

YYZORD

Toronto Pearson Intl

Fri 10/30

7:26 pm-8:48 pm

Nonstop2h 22m

Chicago O'Hare Intl

Sat 10/31

7:03 am-9:47 am

Nonstop1h 44m

$205

Quickest round-trip

TorontoChicago

YTZ Toronto Island - MDW Chicago Midway

YTZMDW

Toronto Island

Sat 10/3

1:45 pm-2:35 pm

Nonstop1h 50m

Chicago Midway

Mon 10/5

3:20 pm-6:00 pm

Nonstop1h 40m

$205

TorontoChicago

YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl

YYZORD

Toronto Pearson Intl

Fri 9/25

8:50 am-9:48 am

Nonstop1h 58m

Chicago O'Hare Intl

Tue 9/29

9:55 am-12:40 pm

Nonstop1h 45m

$205

TorontoChicago

YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl

YYZORD

Toronto Pearson Intl

Mon 10/5

9:00 pm-10:06 pm

Nonstop2h 06m

Chicago O'Hare Intl

Sat 10/10

8:40 pm-11:26 pm

Nonstop1h 46m

$205

TorontoChicago

YTZ Toronto Island - MDW Chicago Midway

YTZMDW

Toronto Island

Sun 10/11

10:10 am-11:00 am

Nonstop1h 50m

Chicago Midway

Wed 10/14

11:45 am-2:25 pm

Nonstop1h 40m

$207

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

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?

The month of January is, on average, the cheapest month to fly to Chicago from Region of Ontario, with most prices found around $255. If you’re not able to fly to Chicago in January, then February is your next best option. Flight prices from Region of Ontario to Chicago during February average around $270.

What is the cheapest day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Friday when prices can be found for as low as $454. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Region of Ontario to Chicago for around $660.

What is the cheapest time of day to depart on your flight to Chicago?

Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from Region of Ontario to Chicago during this time can be as low as $403. In contrast, the most expensive time of day to depart to Chicago is in the afternoon when prices are around $786.

What is the cheapest Ontario to Chicago flight route?

Fly from Toronto Island to Chicago Midway for the best Ontario - Chicago flight prices

How far in advance should I book a flight from Ontario to Chicago?

You are more likely to see cheaper flights to Chicago from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around $314 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Region of Ontario for as low as $175 on momondo.

What cabin class options are available on Region of Ontario to Chicago flights?

There are 4 cabin classes available to choose from on Region of Ontario to Chicago 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 flights?

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

Cheap Region of Ontario to Chicago flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Chicago

Best Price Found	$130
Fastest flight time	1h 50m
Direct flights	Every day
Airports in Chicago	3 airports

The best one-way flight to Chicago from Region of Ontario in the past 72 hours is $130. The best round-trip flight deal from Region of Ontario to Chicago found on momondo in the last 72 hours is $198.

The fastest flight from Region of Ontario to Chicago takes 1h 50m

Direct flights go from Region of Ontario to Chicago every day.

There are 3 airports in Chicago. From Region of Ontario there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).

Search flight deals

Frequently asked questions about flying from Ontario to Chicago

When did momondo last update prices for flights from Ontario to Chicago?
Prices for flights from Ontario to Chicago are refreshed on a daily basis.
How many operators does momondo search for flights from Ontario to Chicago?
The number of operators available for flights from Ontario to Chicago is 4 as of September 2026.
How old do you have to be to fly from Ontario to Chicago?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Chicago.
What documentation or ID do you need to fly to Chicago?
The required travel and health documents for your Chicago trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Region of Ontario to Chicago?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Region of Ontario to Chicago is De Havilland (Bombardier) DHC-8-400 Dash 8Q (25.03% of total bookings). The next most popular plane models are Embraer 175 (Enhanced Winglets) (10.47%), Boeing 737-900 (9.55%), and Embraer 195 E2 (7.45%).

Best airlines flying from Region of Ontario to Chicago

Compare and see reviews for airlines that fly from Region of Ontario to Chicago with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $137	Free Cancellation	Rating 7.1 11,635 reviews	Search Air Canada flights
Porter Airlines	PriceFrom $168	Free Cancellation	Rating 8.0 462 reviews	Search Porter Airlines flights
United Airlines	PriceFrom $190	Free Cancellation	Rating 7.4 10,216 reviews	Search United Airlines flights
American Airlines	PriceFrom $193	Free Cancellation	Rating 7.1 12,062 reviews	Search American Airlines flights

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Saint Joseph

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Schererville

Munster

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Porter

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Griffith

Saint John

Why use momondo?

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

It is quick and easy to find Ontario to Chicago flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits 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?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight 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?

Yes momondo offers price alerts on flights to Chicago from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Fly into one of these airports located in Chicago

Chicago Midway Airport

Chicago O'Hare Intl Airport

Chicago Greater Rockford Airport

Cheap flights from Ontario to Chicago from $130

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 11/27. 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

Our best Air Canada deals on Region of Ontario to Chicago flight tickets

United Airlines flights from Region of Ontario to Chicago

Our best United Airlines deals on Region of Ontario to Chicago flight tickets

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How to get the cheapest flight ticket from Region of Ontario to Chicago

What is the cheapest month to fly to Chicago?

What is the cheapest day to depart on your flight to Chicago?

What is the cheapest time of day to depart on your flight to Chicago?

What is the cheapest Ontario to Chicago flight route?

How far in advance should I book a flight from Ontario to Chicago?

What cabin class options are available on Region of Ontario to Chicago flights?

Can stopping save me money on Region of Ontario to Chicago flights?

What is the cheapest airline that flies from Ontario to Chicago?

What airlines fly to Chicago?

How many flights depart from Region of Ontario to Chicago on average per day?

How many flights depart from Region of Ontario to Chicago on average per week?

How long does it take to fly to Chicago?

Cheap Region of Ontario to Chicago flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Chicago

Frequently asked questions about flying from Ontario to Chicago

Best airlines flying from Region of Ontario to Chicago

Compare and see reviews for airlines that fly from Region of Ontario to Chicago with momondo

Traveling to a place near Chicago?

Why use momondo?

An easier way to manage your Chicago 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 the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago

Fly your favorite airline to Chicago

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Chicago

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

Popular cities in the United States

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

Fly to other destinations from Ontario

According to popular flight searches on momondo this year

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