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

As of March 2026, there are 682 flights per week flying from Illinois to Region of Ontario. The most common day of the week flights depart is Mon, with 15% 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 41% 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.

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

As of March 2026, there are 97 flights per day flying from Illinois to Region of Ontario. The most common time of day flights depart is 6:00PM, with 35% of flights taking off at noon.

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 21m on average, while flying from Moline to Toronto Pearson Intl Airport is 8h 16m on average. Toronto Pearson Intl Airport is the most popular airport in Region of Ontario.

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

Delta, Air Canada, and United Airlines are the most popular carriers operating 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 March 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.

$90 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.

8:40 am - 11:51 am

ORD

YUL

2h 11mnonstop

6:30 pm - 8:08 pm

YUL

ORD

2h 38mnonstop

$202Air Canada

Sun, Apr 26 - Sun, May 24

8:45 am - 12:00 pm

ORD

YUL

2h 15mnonstop

8:40 am - 10:18 am

YUL

ORD

2h 38mnonstop

$203Air Canada

Wed, May 13 - Thu, May 14

4:05 pm - 10:45 pm

MDW

YUL

5h 40m

1 stop

6:50 am - 10:15 am

YUL

MDW

4h 25m

1 stop

$208Porter Airlines

Fri, Apr 24 - Mon, Apr 27

10:25 am - 5:15 pm

MDW

YUL

5h 50m

1 stop

6:30 am - 9:40 am

YUL

MDW

4h 10m

1 stop

$209Porter Airlines

Fri, Jun 5 - Mon, Jun 8

12:55 pm - 3:46 pm

ORD

YYZ

1h 51mnonstop

8:50 am - 9:50 am

YYZ

ORD

2h 00mnonstop

$222United Airlines

Fri, Jul 17 - Sun, Jul 26

6:00 am - 11:43 am

ORD

YYZ

4h 43m

1 stop

7:00 am - 8:00 am

YYZ

ORD

2h 00mnonstop

$232United Airlines

Sat, Jul 18 - Sun, Jul 26

9:22 am - 5:21 pm

MDW

YYZ

6h 59m

1 stop

12:09 pm - 6:33 pm

YYZ

MDW

7h 24m

1 stop

$248Delta

Thu, May 7 - Sun, May 10

9:23 am - 6:31 pm

MDW

YYZ

8h 08m

1 stop

2:29 pm - 6:31 pm

YYZ

MDW

5h 02m

1 stop

$269Delta

Fri, Jun 5 - Mon, Jun 8

7:00 am - 4:53 pm

STL

YUL

8h 53m

1 stop

12:30 pm - 8:30 pm

YUL

STL

9h 00m

1 stop

$347American Airlines

Wed, May 27 - Wed, Jun 10

2:33 pm - 11:44 am

STL

YUL

20h 11m

1 stop

12:30 pm - 8:09 pm

YUL

STL

8h 39m

1 stop

$421American Airlines

Sat, May 2 - Sat, May 9

Delta flights from Illinois to Region of Ontario

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

Delta

Jul 7

ORD7:01 amChicago O'Hare Intl

5h 33m

1 stop

YYZ1:34 pmToronto Pearson Intl

Jul 19

YYZ2:24 pmToronto Pearson Intl

7h 07m

1 stop

ORD8:31 pmChicago O'Hare Intl

$247

Delta

May 7

ORD7:05 amChicago O'Hare Intl

5h 35m

1 stop

YYZ1:40 pmToronto Pearson Intl

May 12

YYZ6:00 amToronto Pearson Intl

8h 14m

1 stop

ORD1:14 pmChicago O'Hare Intl

$248

Delta

Jun 23

ORD5:20 pmChicago O'Hare Intl

4h 38m

1 stop

YYZ10:58 pmToronto Pearson Intl

Jul 1

YYZ9:45 amToronto Pearson Intl

7h 51m

1 stop

ORD4:36 pmChicago O'Hare Intl

$258

WestJet flights from Illinois to Region of Ontario

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

WestJet

May 11

MDW6:23 amChicago Midway

9h 52m

1 stop

YYZ5:15 pmToronto Pearson Intl

May 12

YYZ6:10 amToronto Pearson Intl

3h 33m

1 stop

MDW8:43 amChicago Midway

$408

WestJet

Mar 30

MDW9:35 amChicago Midway

4h 33m

1 stop

YYZ3:08 pmToronto Pearson Intl

Mar 31

YYZ6:20 amToronto Pearson Intl

12h 34m

1 stop

MDW5:54 pmChicago Midway

$521

WestJet

Mar 31

MDW6:34 pmChicago Midway

3h 05m

1 stop

YYZ10:39 pmToronto Pearson Intl

Apr 15

YYZ6:10 amToronto Pearson Intl

3h 37m

1 stop

MDW8:47 amChicago Midway

$529

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sun 4/26

8:40 am-11:51 am

Nonstop2h 11m

Montreal Pierre Elliott Trudeau Intl

Sun 5/24

6:30 pm-8:08 pm

Nonstop2h 38m

$202

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Wed 5/13

8:45 am-12:00 pm

Nonstop2h 15m

Montreal Pierre Elliott Trudeau Intl

Thu 5/14

8:40 am-10:18 am

Nonstop2h 38m

$203

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Fri 4/24

4:05 pm-10:45 pm

1 stop5h 40m

Montreal Pierre Elliott Trudeau Intl

Mon 4/27

6:50 am-10:15 am

1 stop4h 25m

$208

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Fri 6/5

10:25 am-5:15 pm

1 stop5h 50m

Montreal Pierre Elliott Trudeau Intl

Mon 6/8

6:30 am-9:40 am

1 stop4h 10m

$209

Quickest round-trip

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Fri 7/17

12:55 pm-3:46 pm

Nonstop1h 51m

Toronto Pearson Intl

Sun 7/26

8:50 am-9:50 am

Nonstop2h 00m

$222

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Sat 7/18

6:00 am-11:43 am

1 stop4h 43m

Toronto Pearson Intl

Sun 7/26

7:00 am-8:00 am

Nonstop2h 00m

$232

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Thu 5/7

9:22 am-5:21 pm

1 stop6h 59m

Toronto Pearson Intl

Sun 5/10

12:09 pm-6:33 pm

1 stop7h 24m

$248

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Fri 6/5

9:23 am-6:31 pm

1 stop8h 08m

Toronto Pearson Intl

Mon 6/8

2:29 pm-6:31 pm

1 stop5h 02m

$269

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Wed 5/27

7:00 am-4:53 pm

1 stop8h 53m

Montreal Pierre Elliott Trudeau Intl

Wed 6/10

12:30 pm-8:30 pm

1 stop9h 00m

$347

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sat 5/2

2:33 pm-11:44 am

1 stop20h 11m

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

12:30 pm-8:09 pm

1 stop8h 39m

$421

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 September is, on average, the cheapest month to fly to Region of Ontario from Illinois, with most prices found around $208. If you aren’t able to travel during the month of September, then book flights to Region of Ontario from Illinois during July instead. Flights to Region of Ontario in July, while not as cheap as those in September, still average around $239.

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 $456. 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 $723. 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 $413. 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 $734.

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 to Region of 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 $293 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 $144 on momondo.

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

There are 4 cabin classes available to choose from on Illinois to 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	$106
Fastest flight time	1h 36m
Direct flights	Every day
Airports in Region of Ontario	123 airports

The best one-way flight to Region of Ontario from Illinois in the past 72 hours is $106. The best round-trip flight deal from Illinois to Region of Ontario found on momondo in the last 72 hours is $213.

The fastest flight from Illinois to Region of Ontario takes 1h 36m

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

There are 123 airports in Region of Ontario. From Illinois there are direct flights to Toronto Pearson Intl (YYZ), Toronto Island (YTZ).

Search flight deals

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 March 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 13.52% of all bookings. The subsequent popular models are Embraer 175 (Enhanced Winglets) at 13.23%, Embraer 170 at 10.58%, and Embraer 175 at 9.86%.

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 7.9 8,319 reviews	Search Delta flights
Air Canada	PriceFrom $105	Free Cancellation	Rating 7.1 10,834 reviews	Search Air Canada flights
United Airlines	PriceFrom $145	Free Cancellation	Rating 7.4 9,460 reviews	Search United Airlines flights
Qantas Airways	PriceFrom $160	Free Cancellation	Rating 7.5 1,008 reviews	Search Qantas Airways flights
WestJet	PriceFrom $170	Free Cancellation	Rating 7.2 3,300 reviews	Search WestJet flights
Porter Airlines	PriceFrom $172	Free Cancellation	Rating 8.0 427 reviews	Search Porter Airlines flights
American Airlines	PriceFrom $213	Free Cancellation	Rating 7.1 11,489 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.

An easier way to manage your Region of Ontario trip

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Popular cities in Ontario

Flights to Torontofrom $148

Flights to Vancouverfrom $132

Flights to Montrealfrom $201

Flights to Calgaryfrom $228

Flights to Ottawafrom $218

Flights to Halifaxfrom $242

Flights to Winnipegfrom $276

Flights to Québec Cityfrom $276

Flights to Kelownafrom $245

Flights to Saskatoonfrom $282

Flights to St. John'sfrom $371

Flights to Reginafrom $359

Cheap flights from Illinois to Ontario from $90

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 3/31. 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 Illinois to Region of Ontario

Our best Delta 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 to Region of Ontario?

What cabin class options are available on Illinois to 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

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

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According to popular flight searches on momondo this year

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