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 6:00p.m., with 35% of flights taking off at noon.

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 is the cheapest airline that flies from Illinois to Ontario?

Air Canada, Delta, and Porter 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 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 March 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$ 123 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 a.m. - 11:51 a.m.

ORD

YUL

2h 11mdirect

6:30 p.m. - 8:08 p.m.

YUL

ORD

2h 38mdirect

C$ 277Air Canada

Sun, 26 Apr - Sun, 24 May

8:45 a.m. - 12:00 p.m.

ORD

YUL

2h 15mdirect

8:40 a.m. - 10:18 a.m.

YUL

ORD

2h 38mdirect

C$ 278Air Canada

Wed, 13 May - Thu, 14 May

4:05 p.m. - 10:45 p.m.

MDW

YUL

5h 40m

1 stop

6:50 a.m. - 10:15 a.m.

YUL

MDW

4h 25m

1 stop

C$ 285Porter Airlines

Fri, 24 Apr - Mon, 27 Apr

10:25 a.m. - 5:15 p.m.

MDW

YUL

5h 50m

1 stop

6:30 a.m. - 9:40 a.m.

YUL

MDW

4h 10m

1 stop

C$ 287Porter Airlines

Fri, 5 Jun - Mon, 8 Jun

12:55 p.m. - 3:46 p.m.

ORD

YYZ

1h 51mdirect

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

YYZ

ORD

2h 00mdirect

C$ 305United Airlines

Fri, 17 Jul - Sun, 26 Jul

7:30 a.m. - 8:03 p.m.

MDW

YTZ

11h 33m

2 stops

9:25 a.m. - 10:15 a.m.

YTZ

MDW

1h 50mdirect

C$ 305Multiple Airlines

Wed, 15 Apr - Thu, 23 Apr

7:30 a.m. - 8:03 p.m.

MDW

YTZ

11h 33m

2 stops

9:25 a.m. - 10:15 a.m.

YTZ

MDW

1h 50mdirect

C$ 306Multiple Airlines

Wed, 15 Apr - Wed, 22 Apr

6:00 a.m. - 11:43 a.m.

ORD

YYZ

4h 43m

1 stop

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

YYZ

ORD

2h 00mdirect

C$ 318United Airlines

Sat, 18 Jul - Sun, 26 Jul

9:17 a.m. - 5:24 p.m.

MDW

YYZ

7h 07m

1 stop

12:09 p.m. - 6:02 p.m.

YYZ

MDW

6h 53m

1 stop

C$ 339Delta

Mon, 6 Jul - Sat, 18 Jul

9:22 a.m. - 5:21 p.m.

MDW

YYZ

6h 59m

1 stop

4:04 p.m. - 6:33 p.m.

YYZ

MDW

3h 29m

1 stop

C$ 340Delta

Thu, 7 May - Mon, 11 May

Delta flights from Illinois to Region of Ontario

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

Delta

7 Jul

ORD7:01 a.m.Chicago O'Hare Intl

5h 33m

1 stop

YYZ1:34 p.m.Toronto Pearson Intl

19 Jul

YYZ2:24 p.m.Toronto Pearson Intl

7h 07m

1 stop

ORD8:31 p.m.Chicago O'Hare Intl

C$ 339

Delta

7 May

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

7h 59m

1 stop

YYZ10:59 p.m.Toronto Pearson Intl

10 May

YYZ6:10 a.m.Toronto Pearson Intl

3h 35m

1 stop

ORD8:45 a.m.Chicago O'Hare Intl

C$ 340

Delta

23 Jun

ORD5:20 p.m.Chicago O'Hare Intl

4h 38m

1 stop

YYZ10:58 p.m.Toronto Pearson Intl

1 Jul

YYZ9:45 a.m.Toronto Pearson Intl

7h 51m

1 stop

ORD4:36 p.m.Chicago O'Hare Intl

C$ 354

WestJet flights from Illinois to Region of Ontario

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

WestJet

11 May

MDW6:23 a.m.Chicago Midway

9h 52m

1 stop

YYZ5:15 p.m.Toronto Pearson Intl

12 May

YYZ6:10 a.m.Toronto Pearson Intl

3h 33m

1 stop

MDW8:43 a.m.Chicago Midway

C$ 560

WestJet

30 Mar

MDW9:35 a.m.Chicago Midway

4h 33m

1 stop

YYZ3:08 p.m.Toronto Pearson Intl

31 Mar

YYZ6:20 a.m.Toronto Pearson Intl

12h 34m

1 stop

MDW5:54 p.m.Chicago Midway

C$ 715

WestJet

31 Mar

MDW6:34 p.m.Chicago Midway

3h 05m

1 stop

YYZ10:39 p.m.Toronto Pearson Intl

15 Apr

YYZ6:10 a.m.Toronto Pearson Intl

3h 37m

1 stop

MDW8:47 a.m.Chicago Midway

C$ 726

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sun 26/4

8:40 a.m.-11:51 a.m.

Nonstop2h 11m

Montreal Pierre Elliott Trudeau Intl

Sun 24/5

6:30 p.m.-8:08 p.m.

Nonstop2h 38m

C$ 277

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Wed 13/5

8:45 a.m.-12:00 p.m.

Nonstop2h 15m

Montreal Pierre Elliott Trudeau Intl

Thu 14/5

8:40 a.m.-10:18 a.m.

Nonstop2h 38m

C$ 278

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Fri 24/4

4:05 p.m.-10:45 p.m.

1 stop5h 40m

Montreal Pierre Elliott Trudeau Intl

Mon 27/4

6:50 a.m.-10:15 a.m.

1 stop4h 25m

C$ 285

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Fri 5/6

10:25 a.m.-5:15 p.m.

1 stop5h 50m

Montreal Pierre Elliott Trudeau Intl

Mon 8/6

6:30 a.m.-9:40 a.m.

1 stop4h 10m

C$ 287

Quickest round-trip

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Fri 17/7

12:55 p.m.-3:46 p.m.

Nonstop1h 51m

Toronto Pearson Intl

Sun 26/7

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

Nonstop2h 00m

C$ 305

ChicagoToronto

MDW - YTZ

MDWYTZ

Chicago Midway

Wed 15/4

7:30 a.m.-8:03 p.m.

2 stops11h 33m

Toronto Island

Thu 23/4

9:25 a.m.-10:15 a.m.

Nonstop1h 50m

C$ 305

ChicagoToronto

MDW - YTZ

MDWYTZ

Chicago Midway

Wed 15/4

7:30 a.m.-8:03 p.m.

2 stops11h 33m

Toronto Island

Wed 22/4

9:25 a.m.-10:15 a.m.

Nonstop1h 50m

C$ 306

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Sat 18/7

6:00 a.m.-11:43 a.m.

1 stop4h 43m

Toronto Pearson Intl

Sun 26/7

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

Nonstop2h 00m

C$ 318

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Mon 6/7

9:17 a.m.-5:24 p.m.

1 stop7h 07m

Toronto Pearson Intl

Sat 18/7

12:09 p.m.-6:02 p.m.

1 stop6h 53m

C$ 339

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Thu 7/5

9:22 a.m.-5:21 p.m.

1 stop6h 59m

Toronto Pearson Intl

Mon 11/5

4:04 p.m.-6:33 p.m.

1 stop3h 29m

C$ 340

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, September 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$ 285. If you are unable to visit Region of Ontario during the month of September, then departing from Illinois during the month July is also very affordable. Most momondo users find prices during this month for around C$ 328.

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$ 296. The most expensive day to fly to Region of Ontario is Monday, with ticket prices averaging around C$ 506.

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$ 265. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 451 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 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 C$ 401 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$ 198 on momondo.

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

There are 3 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	C$ 109
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 C$ 109. The best round-trip flight deal from Illinois to Region of Ontario found on momondo in the last 72 hours is C$ 368.

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 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 March 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 13.52% of the total bookings. Other popular models include Embraer 175 (Enhanced Winglets) with 13.23%, Embraer 170 with 10.58%, and Embraer 175 with 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
Air Canada	PriceFrom C$ 207	Free Cancellation	Rating 7.1 10,835 reviews		Search Air Canada flights
United Airlines	PriceFrom C$ 258	Free Cancellation	Rating 7.4 9,462 reviews		Search United Airlines 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.

An easier way to manage your Region of Ontario trip

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Popular cities

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Complete your trip

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Popular Cities in Ontario

Flights to Torontofrom C$ 136

Flights to Vancouverfrom C$ 82

Flights to Montrealfrom C$ 298

Flights to Calgaryfrom C$ 119

Flights to Ottawafrom C$ 232

Flights to Winnipegfrom C$ 180

Flights to Halifaxfrom C$ 162

Flights to Kelownafrom C$ 145

Flights to Saskatoonfrom C$ 225

Flights to Reginafrom C$ 251

Flights to St. John'sfrom C$ 248

Flights to Québec Cityfrom C$ 300

Cheap flights from Illinois to Ontario from C$ 123

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 31/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

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Cheap last-minute flights

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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 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?

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

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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