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

As of June 2026, there are 109 flights per day flying from Illinois to Region of Ontario. The most common time of day flights depart is 10:00AM, with 43% of flights taking off at noon.

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

As of June 2026, there are 764 flights per week flying from Illinois to Region of Ontario. The most common day of the week flights depart is Mon, with 16% of flights taking off on this day.

What airlines fly to Region of Ontario?

United Airlines, Air Canada and American Airlines are the top three most popular airlines that fly to Region of Ontario from Illinois according to our data. United Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 7 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

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

Air Canada, United Airlines, and Delta are the most popular carriers operating from Illinois to Ontario

How long is the flight from Illinois to Region of Ontario?

Average flight duration from Illinois to Region of Ontario depends on which airport you fly into and out of. Flying from Chicago to Toronto Pearson Intl Airport is 2h 27m on average, while flying from Moline to Toronto Pearson Intl Airport is 4h 19m on average. Toronto Pearson Intl Airport is the most popular airport in Region of Ontario.

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

Prices for flights from Illinois to Ontario were last updated today.

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

As of June 2026, there are 7 operators available to choose from for flights from Illinois to Ontario.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Ontario.

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

The required travel and health documents for your Ontario 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 Ontario. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$106 Cheap Flights from Illinois to Ontario in 2026

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Find the cheapest flights from Illinois to Ontario

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:20 pm - 6:00 pm

MDW

YTZ

1h 40mnonstop

8:50 am - 9:40 am

YTZ

MDW

1h 50mnonstop

$226Porter Airlines

Fri, Jul 17 - Sat, Jul 25

11:05 am - 5:51 pm

ORD

YTZ

5h 46m

1 stop

7:25 pm - 8:29 pm

YTZ

ORD

2h 04mnonstop

$226Air Canada

Tue, Aug 4 - Thu, Aug 6

11:05 am - 5:35 pm

ORD

YYZ

5h 30m

1 stop

8:05 am - 9:00 am

YYZ

ORD

1h 55mnonstop

$226Air Canada

Sat, Jul 4 - Mon, Jul 6

3:20 pm - 6:00 pm

MDW

YTZ

1h 40mnonstop

8:50 am - 9:40 am

YTZ

MDW

1h 50mnonstop

$227Porter Airlines

Thu, Jul 9 - Thu, Jul 16

8:45 am - 3:51 pm

ORD

YTZ

6h 06m

1 stop

7:25 pm - 8:29 pm

YTZ

ORD

2h 04mnonstop

$227Air Canada

Sat, Jul 18 - Sat, Jul 25

9:29 am - 5:20 pm

MDW

YYZ

6h 51m

1 stop

6:00 am - 12:39 pm

YYZ

MDW

7h 39m

1 stop

$272Delta

Wed, Sep 9 - Tue, Sep 15

9:24 am - 5:24 pm

MDW

YYZ

7h 00m

1 stop

12:09 pm - 6:33 pm

YYZ

MDW

7h 24m

1 stop

$281Delta

Wed, Aug 26 - Fri, Sep 4

5:00 am - 5:44 pm

STL

YYZ

11h 44m

1 stop

1:15 pm - 8:44 pm

YYZ

STL

8h 29m

1 stop

$358American Airlines

Sat, Sep 12 - Sat, Sep 19

6:55 am - 5:34 pm

STL

YYZ

9h 39m

1 stop

1:17 pm - 12:16 am

YYZ

STL

11h 59m

1 stop

$368American Airlines

Tue, Jul 21 - Tue, Jul 28

6:40 am - 4:19 pm

STL

YUL

8h 39m

1 stop

8:00 pm - 9:00 am

YUL

STL

14h 00m

2 stops

$475WestJet

Mon, Sep 28 - Mon, Sep 28

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KLM flights from Illinois to Region of Ontario

Our best KLM deals on Illinois to Region of Ontario flight tickets

KLM

Sep 4

MDW9:24 amChicago Midway

7h 00m

1 stop

YYZ5:24 pmToronto Pearson Intl

Sep 7

YYZ6:10 amToronto Pearson Intl

7h 29m

1 stop

MDW12:39 pmChicago Midway

$262

KLM

Jul 24

ORD7:05 amChicago O'Hare Intl

7h 15m

1 stop

YYZ3:20 pmToronto Pearson Intl

Jul 27

YYZ12:09 pmToronto Pearson Intl

7h 20m

1 stop

ORD6:29 pmChicago O'Hare Intl

$266

KLM

Jul 24

ORD7:05 amChicago O'Hare Intl

7h 15m

1 stop

YYZ3:20 pmToronto Pearson Intl

Jul 26

YYZ6:10 amToronto Pearson Intl

7h 53m

1 stop

ORD1:03 pmChicago O'Hare Intl

$278

Air Canada flights from Illinois to Region of Ontario

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

Air Canada

Jul 4

ORD11:05 amChicago O'Hare Intl

5h 30m

1 stop

YYZ5:35 pmToronto Pearson Intl

Jul 6

YYZ8:05 amToronto Pearson Intl

1h 55m

ORD9:00 amChicago O'Hare Intl

$226

Air Canada

Jul 9

ORD3:45 pmChicago O'Hare Intl

1h 44m

YYZ6:29 pmToronto Pearson Intl

Jul 12

YYZ8:05 amToronto Pearson Intl

1h 55m

ORD9:00 amChicago O'Hare Intl

$227

Air Canada

Aug 9

ORD8:40 amChicago O'Hare Intl

5h 55m

1 stop

YYZ3:35 pmToronto Pearson Intl

Aug 13

YYZ4:00 pmToronto Pearson Intl

5h 05m

1 stop

ORD8:05 pmChicago O'Hare Intl

$228

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

ChicagoToronto

MDW - YTZ

MDWYTZ

Chicago Midway

Fri 7/17

3:20 pm-6:00 pm

Nonstop1h 40m

Toronto Island

Sat 7/25

8:50 am-9:40 am

Nonstop1h 50m

$226

ChicagoToronto

ORD - YTZ

ORDYTZ

Chicago O'Hare Intl

Tue 8/4

11:05 am-5:51 pm

1 stop5h 46m

Toronto Island

Thu 8/6

7:25 pm-8:29 pm

Nonstop2h 04m

$226

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Sat 7/4

11:05 am-5:35 pm

1 stop5h 30m

Toronto Pearson Intl

Mon 7/6

8:05 am-9:00 am

Nonstop1h 55m

$226

ChicagoToronto

MDW - YTZ

MDWYTZ

Chicago Midway

Thu 7/9

3:20 pm-6:00 pm

Nonstop1h 40m

Toronto Island

Thu 7/16

8:50 am-9:40 am

Nonstop1h 50m

$227

ChicagoToronto

ORD - YTZ

ORDYTZ

Chicago O'Hare Intl

Sat 7/18

8:45 am-3:51 pm

1 stop6h 06m

Toronto Island

Sat 7/25

7:25 pm-8:29 pm

Nonstop2h 04m

$227

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Wed 9/9

9:29 am-5:20 pm

1 stop6h 51m

Toronto Pearson Intl

Tue 9/15

6:00 am-12:39 pm

1 stop7h 39m

$272

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Wed 8/26

9:24 am-5:24 pm

1 stop7h 00m

Toronto Pearson Intl

Fri 9/4

12:09 pm-6:33 pm

1 stop7h 24m

$281

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sat 9/12

5:00 am-5:44 pm

1 stop11h 44m

Toronto Pearson Intl

Sat 9/19

1:15 pm-8:44 pm

1 stop8h 29m

$358

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 7/21

6:55 am-5:34 pm

1 stop9h 39m

Toronto Pearson Intl

Tue 7/28

1:17 pm-12:16 am

1 stop11h 59m

$368

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Mon 9/28

6:40 am-4:19 pm

1 stop8h 39m

Montreal Pierre Elliott Trudeau Intl

Mon 9/28

8:00 pm-9:00 am

2 stops14h 00m

$475

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 Illinois to Region of Ontario

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 Region of Ontario?

The month of November is, on average, the cheapest month to fly to Region of Ontario from Illinois, with most prices found around $58. If you aren’t able to travel during the month of November, then book flights to Region of Ontario from Illinois during March instead. Flights to Region of Ontario in March, while not as cheap as those in November, still average around $58.

What is the cheapest day to depart on your flight to Region of Ontario?

According to our data, Thursday is the cheapest day to fly to Region of Ontario from Illinois. The lowest ticket price found for a Thursday departure recently was $424. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Illinois to Region of Ontario on a Sunday will generally be more expensive and average around $684. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

According to our data, the cheapest time of day to fly to Region of Ontario is in the evening. momondo users have found flights departing from Illinois to Region of Ontario in the evening for as low as $424. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $760.

What is the cheapest Illinois to Ontario flight route?

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

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

You are more likely to see cheaper flights to Region of Ontario from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around $313 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from Illinois for as low as $265 on momondo.

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

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

No. A direct flight is the cheapest option for a flight between Illinois to Region of Ontario.

Cheap Illinois to Region of Ontario flight deals and tips

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

Best Price Found	$112
Fastest flight time	1h 39m
Direct flights	Every day
Airports in Region of Ontario	125 airports

The best one-way flight to Region of Ontario from Illinois in the past 72 hours is $112. The best round-trip flight deal from Illinois to Region of Ontario found on momondo in the last 72 hours is $246.

The fastest flight from Illinois to Region of Ontario takes 1h 39m

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

There are 125 airports in Region of Ontario. From Illinois there are direct flights to Toronto Pearson Intl (YYZ), Toronto Island (YTZ).

Search flight deals

Frequently asked questions about flying from Illinois to Ontario

When did momondo last update prices for flights from Illinois to Ontario?
Prices for flights from Illinois to Ontario were last updated today.
How many operators does momondo search for flights from Illinois to Ontario?
As of June 2026, there are 7 operators available to choose from for flights from Illinois to Ontario.
How old do you have to be to fly from Illinois to Ontario?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Ontario.
What documentation or ID do you need to fly to Ontario?
The required travel and health documents for your Ontario 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 Ontario. 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 Illinois to Region of Ontario?
momondo data reveals that the most frequently booked plane model on the route from Illinois to Region of Ontario is De Havilland (Bombardier) DHC-8-400 Dash 8Q, representing 19.14% of all bookings. The subsequent popular models are Embraer 175 at 9.74%, Boeing 787-8 Dreamliner at 9.22%, and Embraer 175 (Enhanced Winglets) at 8.53%.

Best airlines flying from Illinois to Region of Ontario

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $88	Free Cancellation	Rating 7.8 8,431 reviews	Search Delta flights
Air Canada	PriceFrom $114	Free Cancellation	Rating 7.1 11,251 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $160	Free Cancellation	Rating 7.5 1,050 reviews	Search Qantas Airways flights
WestJet	PriceFrom $170	Free Cancellation	Rating 7.2 3,384 reviews	Search WestJet flights
Porter Airlines	PriceFrom $174	Free Cancellation	Rating 8.0 439 reviews	Search Porter Airlines flights
United Airlines	PriceFrom $189	Free Cancellation	Rating 7.4 9,880 reviews	Search United Airlines flights
American Airlines	PriceFrom $209	Free Cancellation	Rating 7.1 11,750 reviews	Search American Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Illinois.

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

Yes. All flights to Ontario from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

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 Illinois to Ontario.

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

Yes. momondo can track prices for Illinois to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Popular cities in Ontario

Flights to Torontofrom $177

Flights to Vancouverfrom $138

Flights to Montrealfrom $220

Flights to Calgaryfrom $224

Flights to Ottawafrom $234

Flights to Halifaxfrom $246

Flights to Winnipegfrom $305

Flights to Québec Cityfrom $330

Flights to Saskatoonfrom $299

Flights to Kelownafrom $296

Flights to St. John'sfrom $362

Flights to Reginafrom $376

Cheap flights from Illinois to Ontario from $106

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Ontario departing on 8/20. 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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KLM flights from Illinois to Region of Ontario

Our best KLM deals on Illinois to Region of Ontario flight tickets

Air Canada flights from Illinois to Region of Ontario

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

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

What is the cheapest month to fly to Region of Ontario?

What is the cheapest day to depart on your flight to Region of Ontario?

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

What is the cheapest Illinois to Ontario flight route?

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

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

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

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

What airlines fly to Region of Ontario?

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

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

How long is the flight from Illinois to Region of Ontario?

Cheap Illinois to Region of Ontario flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Region of Ontario

Frequently asked questions about flying from Illinois to Ontario

Best airlines flying from Illinois to Region of Ontario

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

Why use momondo?

An easier way to manage your Region of Ontario 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 Ontario

Popular cities in Ontario

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

Illinois flight routes

According to popular flight searches on momondo this year

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