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

As of June 2026, there are 112 flights per day flying from Illinois to Region of Ontario. The most common time of day flights depart is 10:00a.m., with 43% of flights taking off at noon.

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

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

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

As of June 2026, there are 790 flights per week flying from Illinois to Region of Ontario. The most common day of the week flights depart is Fri, with 16% of flights taking off on this day.

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

Prices for flights from Illinois to Ontario are updated daily.

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

There are 2 operators available for flights from Illinois to Ontario as of June 2026.

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 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 Illinois to Ontario.

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

The travel and health documents required for your trip to Ontario can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 147 Cheap Flights from Illinois to Ontario in 2026

Discover deals from 900+ travel sites with momondo.

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.

9:50 a.m. - 12:35 p.m.

ORD

YYZ

1h 45mdirect

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

YYZ

ORD

1h 55mdirect

C$ 314Air Canada

Thu, 2 Jul - Mon, 6 Jul

3:20 p.m. - 6:00 p.m.

MDW

YTZ

1h 40mdirect

8:50 a.m. - 9:40 a.m.

YTZ

MDW

1h 50mdirect

C$ 318Porter Airlines

Wed, 15 Jul - Mon, 20 Jul

3:45 p.m. - 6:29 p.m.

ORD

YYZ

1h 44mdirect

3:30 p.m. - 8:05 p.m.

YYZ

ORD

5h 35m

1 stop

C$ 318Air Canada

Wed, 15 Jul - Wed, 22 Jul

3:20 p.m. - 6:00 p.m.

MDW

YTZ

1h 40mdirect

8:50 a.m. - 9:40 a.m.

YTZ

MDW

1h 50mdirect

C$ 320Porter Airlines

Fri, 17 Jul - Sat, 25 Jul

9:19 a.m. - 5:24 p.m.

MDW

YYZ

7h 05m

1 stop

12:09 p.m. - 6:25 p.m.

YYZ

MDW

7h 16m

1 stop

C$ 376KLM

Fri, 24 Jul - Mon, 27 Jul

9:29 a.m. - 5:20 p.m.

MDW

YYZ

6h 51m

1 stop

6:00 a.m. - 12:34 p.m.

YYZ

MDW

7h 34m

1 stop

C$ 385Delta

Wed, 9 Sep - Tue, 15 Sep

1:26 p.m. - 11:02 p.m.

MDW

YYZ

8h 36m

1 stop

12:09 p.m. - 6:31 p.m.

YYZ

MDW

7h 22m

1 stop

C$ 395KLM

Thu, 2 Jul - Mon, 6 Jul

9:17 a.m. - 1:34 p.m.

MDW

YYZ

3h 17m

1 stop

6:10 a.m. - 12:38 p.m.

YYZ

MDW

7h 28m

1 stop

C$ 409Delta

Sat, 4 Jul - Sat, 11 Jul

6:55 a.m. - 5:34 p.m.

STL

YYZ

9h 39m

1 stop

1:17 p.m. - 12:16 a.m.

YYZ

STL

11h 59m

1 stop

C$ 521American Airlines

Tue, 21 Jul - Tue, 28 Jul

6:55 a.m. - 5:34 p.m.

STL

YYZ

9h 39m

1 stop

1:17 p.m. - 12:16 a.m.

YYZ

STL

11h 59m

1 stop

C$ 531American Airlines

Tue, 21 Jul - Tue, 28 Jul

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Delta flights from Illinois to Region of Ontario

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

Delta

9 Sep

MDW9:29 a.m.Chicago Midway

6h 51m

1 stop

YYZ5:20 p.m.Toronto Pearson Intl

27 Sep

YYZ6:00 a.m.Toronto Pearson Intl

4h 07m

1 stop

MDW9:07 a.m.Chicago Midway

C$ 385

Delta

28 Aug

ORD11:22 a.m.Chicago O'Hare Intl

5h 02m

1 stop

YYZ5:24 p.m.Toronto Pearson Intl

6 Sep

YYZ9:45 a.m.Toronto Pearson Intl

4h 51m

1 stop

ORD1:36 p.m.Chicago O'Hare Intl

C$ 398

Delta

4 Jul

MDW9:17 a.m.Chicago Midway

3h 17m

1 stop

YYZ1:34 p.m.Toronto Pearson Intl

7 Jul

YYZ6:10 a.m.Toronto Pearson Intl

4h 03m

1 stop

MDW9:13 a.m.Chicago Midway

C$ 409

WestJet flights from Illinois to Region of Ontario

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

WestJet

4 Jul

ORD2:00 p.m.Chicago O'Hare Intl

8h 07m

1 stop

YYZ11:07 p.m.Toronto Pearson Intl

6 Jul

YYZ12:14 p.m.Toronto Pearson Intl

7h 20m

1 stop

ORD6:34 p.m.Chicago O'Hare Intl

C$ 449

WestJet

2 Jul

ORD1:45 p.m.Chicago O'Hare Intl

8h 22m

1 stop

YYZ11:07 p.m.Toronto Pearson Intl

5 Jul

YYZ9:50 a.m.Toronto Pearson Intl

8h 05m

1 stop

ORD4:55 p.m.Chicago O'Hare Intl

C$ 451

WestJet

22 Sep

MDW9:35 a.m.Chicago Midway

6h 50m

1 stop

YYZ5:25 p.m.Toronto Pearson Intl

25 Sep

YYZ2:29 p.m.Toronto Pearson Intl

5h 09m

1 stop

MDW6:38 p.m.Chicago Midway

C$ 458

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 2/7

9:50 a.m.-12:35 p.m.

Nonstop1h 45m

Toronto Pearson Intl

Mon 6/7

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

Nonstop1h 55m

C$ 314

Quickest round-trip

ChicagoToronto

MDW - YTZ

MDWYTZ

Chicago Midway

Wed 15/7

3:20 p.m.-6:00 p.m.

Nonstop1h 40m

Toronto Island

Mon 20/7

8:50 a.m.-9:40 a.m.

Nonstop1h 50m

C$ 318

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Wed 15/7

3:45 p.m.-6:29 p.m.

Nonstop1h 44m

Toronto Pearson Intl

Wed 22/7

3:30 p.m.-8:05 p.m.

1 stop5h 35m

C$ 318

ChicagoToronto

MDW - YTZ

MDWYTZ

Chicago Midway

Fri 17/7

3:20 p.m.-6:00 p.m.

Nonstop1h 40m

Toronto Island

Sat 25/7

8:50 a.m.-9:40 a.m.

Nonstop1h 50m

C$ 320

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Fri 24/7

9:19 a.m.-5:24 p.m.

1 stop7h 05m

Toronto Pearson Intl

Mon 27/7

12:09 p.m.-6:25 p.m.

1 stop7h 16m

C$ 376

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Wed 9/9

9:29 a.m.-5:20 p.m.

1 stop6h 51m

Toronto Pearson Intl

Tue 15/9

6:00 a.m.-12:34 p.m.

1 stop7h 34m

C$ 385

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Thu 2/7

1:26 p.m.-11:02 p.m.

1 stop8h 36m

Toronto Pearson Intl

Mon 6/7

12:09 p.m.-6:31 p.m.

1 stop7h 22m

C$ 395

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Sat 4/7

9:17 a.m.-1:34 p.m.

1 stop3h 17m

Toronto Pearson Intl

Sat 11/7

6:10 a.m.-12:38 p.m.

1 stop7h 28m

C$ 409

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 21/7

6:55 a.m.-5:34 p.m.

1 stop9h 39m

Toronto Pearson Intl

Tue 28/7

1:17 p.m.-12:16 a.m.

1 stop11h 59m

C$ 521

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 21/7

6:55 a.m.-5:34 p.m.

1 stop9h 39m

Toronto Pearson Intl

Tue 28/7

1:17 p.m.-12:16 a.m.

1 stop11h 59m

C$ 531

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?

In general, November is the cheapest month to fly from Illinois to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 82. If you are unable to visit Region of Ontario during the month of November, then departing from Illinois during the month March is also very affordable. Most momondo users find prices during this month for around C$ 82.

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

The cheapest day to depart from Illinois to Region of Ontario is on a Thursday. Travellers who choose to depart for Region of Ontario on a Thursday will often find tickets for as low as C$ 171. The most expensive day to fly to Region of Ontario is Monday, with ticket prices averaging around C$ 522.

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

Our most recent data shows that the best time of day to fly to Region of Ontario is in the evening. Flights from Illinois to Region of Ontario during this time can be as low as C$ 267. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 486 on average. Flights to Region of Ontario from Illinois in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Illinois to Ontario flight route?

Fly from Chicago O'Hare Intl 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 C$ 443 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 C$ 375 on momondo.

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

There are 3 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	C$ 159
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 C$ 159. The best round-trip flight deal from Illinois to Region of Ontario found on momondo in the last 72 hours is C$ 119.

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 are updated daily.
How many operators does momondo search for flights from Illinois to Ontario?
There are 2 operators available for flights from Illinois to Ontario as of June 2026.
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 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 Illinois to Ontario.
What documentation or ID do you need to fly to Ontario?
The travel and health documents required for your trip to Ontario can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Illinois to Region of Ontario?
Based on momondo bookings for flights between Illinois and Region of Ontario, the leading plane model is De Havilland (Bombardier) DHC-8-400 Dash 8Q, making up 18.44% of the total bookings. Other popular models include Embraer 175 with 9.65%, Embraer 175 (Enhanced Winglets) with 8.85%, and Boeing 787-8 Dreamliner with 8.43%.

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
United Airlines	PriceFrom C$ 267	Free Cancellation	Rating 7.4 9,868 reviews		Search United Airlines flights
Air Canada	PriceFrom C$ 292	Free Cancellation	Rating 7.1 11,231 reviews		Search Air Canada flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Illinois to Ontario . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Ontario from Illinois with this policy.

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

momondo provides multiple filters to help you find the best flight to Ontario from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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 C$ 137

Flights to Vancouverfrom C$ 108

Flights to Montrealfrom C$ 279

Flights to Calgaryfrom C$ 126

Flights to Winnipegfrom C$ 140

Flights to Ottawafrom C$ 185

Flights to Halifaxfrom C$ 174

Flights to Kelownafrom C$ 117

Flights to Saskatoonfrom C$ 204

Flights to Reginafrom C$ 255

Flights to St. John'sfrom C$ 272

Flights to Québec Cityfrom C$ 320

Cheap flights from Illinois to Ontario from C$ 147

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 10/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Illinois to Ontario

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Big names, great deals

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Delta flights from Illinois to Region of Ontario

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

WestJet flights from Illinois to Region of Ontario

Our best WestJet 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?

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?

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

Region of Ontario flight routes

According to popular flight searches on momondo this year

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