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 37% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 6 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

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 18m on average, while flying from Moline to Toronto Pearson Intl Airport is 3h 41m 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?

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

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

As of November 2026, there are 68 flights per day flying from Illinois to Region of Ontario. The most common time of day flights depart is 11:00AM, with 40% of flights taking off at noon.

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

As of November 2026, there are 477 flights per week flying from Illinois to Region of Ontario. The most common day of the week flights depart is Mon, with 17% 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 were last updated today.

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

As of November 2026, there are 6 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.

$116 Cheap Flights from Illinois to Ontario in 2026/27

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.

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

1h 43mnonstop

8:05 am - 9:08 amYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mnonstop

$262Air Canada

Mon, Dec 7 - Mon, Dec 14

12:15 pm - 3:00 pmORD Chicago O'Hare Intl-YTZ Toronto Island

1h 45mnonstop

10:29 am - 11:34 amYTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mnonstop

$264Porter Airlines

Mon, Dec 7 - Mon, Dec 14

12:15 pm - 3:00 pmORD Chicago O'Hare Intl-YTZ Toronto Island

1h 45mnonstop

10:29 am - 11:34 amYTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mnonstop

$266Porter Airlines

Fri, Dec 4 - Sun, Dec 6

4:30 pm - 7:10 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 40mnonstop

6:55 pm - 7:58 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mnonstop

$269Air Canada

Fri, Dec 4 - Sun, Dec 6

6:00 am - 1:40 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

30h 40m2 stops Atlanta Hartsfield-Jackson Orlando

7:35 am - 4:14 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

9h 39m1 stop Fort Lauderdale

$274Multiple Airlines

Wed, Feb 10 - Wed, Feb 17

2:30 pm - 11:55 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

8h 25m1 stop Fort Lauderdale

7:35 am - 4:14 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

9h 39m1 stop Fort Lauderdale

$279Multiple Airlines

Fri, Feb 19 - Tue, Feb 23

8:00 am - 10:56 amORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 56mnonstop

1:22 pm - 2:42 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 20mnonstop

$316American Airlines

Wed, Dec 2 - Fri, Dec 4

8:45 pm - 11:59 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

2h 14mnonstop

1:16 pm - 2:36 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 20mnonstop

$316American Airlines

Mon, Nov 23 - Wed, Nov 25

1:12 pm - 6:42 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

4h 30m1 stop Washington, D.C. Dulles Intl

9:00 pm - 9:59 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

1h 59mnonstop

$341United Airlines

Mon, Apr 12 - Mon, Apr 12

5:00 am - 1:43 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

7h 43m1 stop Newark

5:30 pm - 6:29 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

1h 59mnonstop

$341United Airlines

Tue, Apr 13 - Tue, Apr 13

Cheap last minute flights

Enter your travel dates to find the best prices.

12:15 pm - 3:00 pmORD Chicago O'Hare Intl-YTZ Toronto Island

1h 45mnonstop

10:29 am - 11:34 amYTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mnonstop

$285Porter Airlines

Wed, Nov 11 - Fri, Nov 13

12:15 pm - 3:00 pmORD Chicago O'Hare Intl-YTZ Toronto Island

1h 45mnonstop

4:35 pm - 5:40 pmYTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mnonstop

$291Porter Airlines

Wed, Nov 11 - Thu, Nov 12

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

1h 44mnonstop

6:21 pm - 7:41 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 20mnonstop

$297Multiple Airlines

Mon, Nov 16 - Mon, Nov 16

8:45 am - 11:27 amORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 42mnonstop

6:55 pm - 7:58 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mnonstop

$339Air Canada

Wed, Nov 11 - Wed, Nov 11

7:55 am - 12:55 amORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

16h 00m1 stop Fort Lauderdale

7:35 am - 11:34 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

16h 59m1 stop Fort Lauderdale

$352Multiple Airlines

Thu, Nov 12 - Sun, Nov 22

10:15 am - 12:52 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 37mnonstop

8:20 am - 9:23 amYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mnonstop

$378Air Canada

Fri, Nov 13 - Sat, Nov 14

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

1h 50mnonstop

6:21 pm - 7:41 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 20mnonstop

$389Qantas Airways

Fri, Nov 13 - Mon, Nov 16

8:45 pm - 11:46 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

2h 01mnonstop

6:21 pm - 7:41 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 20mnonstop

$389Qantas Airways

Mon, Nov 16 - Fri, Nov 20

1:57 pm - 4:47 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 50mnonstop

5:55 pm - 7:05 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 10mnonstop

$528United Airlines

Sat, Nov 14 - Wed, Nov 25

6:17 pm - 9:15 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 58mnonstop

10:53 am - 11:57 amYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 04mnonstop

$528United Airlines

Sat, Nov 14 - Mon, Nov 23

Cheap direct flights

Enter your travel dates to find the best prices.

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

1h 43mnonstop

8:05 am - 9:08 amYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mnonstop

$262Air Canada

Mon, Dec 7 - Mon, Dec 14

12:15 pm - 3:00 pmORD Chicago O'Hare Intl-YTZ Toronto Island

1h 45mnonstop

10:29 am - 11:34 amYTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mnonstop

$264Porter Airlines

Mon, Dec 7 - Mon, Dec 14

12:15 pm - 3:00 pmORD Chicago O'Hare Intl-YTZ Toronto Island

1h 45mnonstop

10:29 am - 11:34 amYTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mnonstop

$266Porter Airlines

Fri, Dec 4 - Sun, Dec 6

4:30 pm - 7:10 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 40mnonstop

6:55 pm - 7:58 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mnonstop

$269Air Canada

Fri, Dec 4 - Sun, Dec 6

6:20 pm - 9:05 pmORD Chicago O'Hare Intl-YTZ Toronto Island

1h 45mnonstop

10:29 am - 11:34 amYTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mnonstop

$295Multiple Airlines

Wed, Dec 2 - Fri, Dec 4

12:20 pm - 3:00 pmORD Chicago O'Hare Intl-YTZ Toronto Island

1h 40mnonstop

10:35 am - 11:30 amYTZ Toronto Island-ORD Chicago O'Hare Intl

1h 55mnonstop

$300Multiple Airlines

Fri, Jan 29 - Sun, Jan 31

8:00 am - 10:56 amORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 56mnonstop

1:22 pm - 2:42 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 20mnonstop

$316American Airlines

Wed, Dec 2 - Fri, Dec 4

8:45 pm - 11:59 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

2h 14mnonstop

1:16 pm - 2:36 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 20mnonstop

$316American Airlines

Mon, Nov 23 - Wed, Nov 25

11:05 am - 2:03 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 58mnonstop

6:45 am - 7:54 amYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 09mnonstop

$355United Airlines

Thu, Dec 3 - Mon, Dec 7

6:17 pm - 9:15 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 58mnonstop

5:55 pm - 7:10 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 15mnonstop

$355United Airlines

Tue, Dec 22 - Wed, Dec 30

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WestJet flights from Illinois to Region of Ontario

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

WestJet

Apr 14

BMI4:00 pmBloomington-Normal

7h 01m

1 stop

YYZ12:01 amToronto Pearson Intl

Apr 18

YYZ6:15 amToronto Pearson Intl

6h 02m

1 stop

BMI11:17 amBloomington-Normal

$800

WestJet

Nov 21

MDW5:29 pmChicago Midway

29h 11m

2 stops

YOW11:40 pmOttawa

Nov 28

YOW5:30 amOttawa

29h 16m

2 stops

MDW9:46 amChicago Midway

$1,180

Air Canada flights from Illinois to Region of Ontario

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

Air Canada

Dec 7

ORD8:40 pmChicago O'Hare Intl

1h 43m

YYZ11:23 pmToronto Pearson Intl

Dec 14

YYZ8:05 amToronto Pearson Intl

2h 03m

ORD9:08 amChicago O'Hare Intl

$262

Air Canada

Dec 4

ORD4:30 pmChicago O'Hare Intl

1h 40m

YYZ7:10 pmToronto Pearson Intl

Dec 6

YYZ6:55 pmToronto Pearson Intl

2h 03m

ORD7:58 pmChicago O'Hare Intl

$269

Air Canada

Dec 7

ORD7:05 amChicago O'Hare Intl

5h 41m

1 stop

YYZ1:46 pmToronto Pearson Intl

Dec 14

YYZ8:05 amToronto Pearson Intl

2h 03m

ORD9:08 amChicago O'Hare Intl

$273

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Mon 12/7

8:40 pm-11:23 pm

Nonstop1h 43m

Toronto Pearson Intl

Mon 12/14

8:05 am-9:08 am

Nonstop2h 03m

$262

ChicagoToronto

ORD Chicago O'Hare Intl - YTZ Toronto Island

ORDYTZ

Chicago O'Hare Intl

Mon 12/7

12:15 pm-3:00 pm

Nonstop1h 45m

Toronto Island

Mon 12/14

10:29 am-11:34 am

Nonstop2h 05m

$264

ChicagoToronto

ORD Chicago O'Hare Intl - YTZ Toronto Island

ORDYTZ

Chicago O'Hare Intl

Fri 12/4

12:15 pm-3:00 pm

Nonstop1h 45m

Toronto Island

Sun 12/6

10:29 am-11:34 am

Nonstop2h 05m

$266

Quickest round-trip

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Fri 12/4

4:30 pm-7:10 pm

Nonstop1h 40m

Toronto Pearson Intl

Sun 12/6

6:55 pm-7:58 pm

Nonstop2h 03m

$269

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Wed 2/10

6:00 am-1:40 pm

2 stops30h 40m

Toronto Pearson Intl

Wed 2/17

7:35 am-4:14 pm

1 stop9h 39m

$274

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Fri 2/19

2:30 pm-11:55 pm

1 stop8h 25m

Toronto Pearson Intl

Tue 2/23

7:35 am-4:14 pm

1 stop9h 39m

$279

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Wed 12/2

8:00 am-10:56 am

Nonstop1h 56m

Toronto Pearson Intl

Fri 12/4

1:22 pm-2:42 pm

Nonstop2h 20m

$316

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Mon 11/23

8:45 pm-11:59 pm

Nonstop2h 14m

Toronto Pearson Intl

Wed 11/25

1:16 pm-2:36 pm

Nonstop2h 20m

$316

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Mon 4/12

1:12 pm-6:42 pm

1 stop4h 30m

Toronto Pearson Intl

Mon 4/12

9:00 pm-9:59 pm

Nonstop1h 59m

$341

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Tue 4/13

5:00 am-1:43 pm

1 stop7h 43m

Toronto Pearson Intl

Tue 4/13

5:30 pm-6:29 pm

Nonstop1h 59m

$341

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 February is, on average, the cheapest month to fly to Region of Ontario from Illinois, with most prices found around $295. If you aren’t able to travel during the month of February, then book flights to Region of Ontario from Illinois during June instead. Flights to Region of Ontario in June, while not as cheap as those in February, still average around $305.

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 $420. 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 Monday will generally be more expensive and average around $642. 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 $419. 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 $799.

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 $338 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 $272 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?

You could potentially save up to 6% on your flight if you consider stops on a Illinois to Region of Ontario flight.

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	$116
Fastest flight time	1h 37m
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 $116. The best round-trip flight deal from Illinois to Region of Ontario found on momondo in the last 72 hours is $262.

The fastest flight from Illinois to Region of Ontario takes 1h 37m

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 November 2026, there are 6 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 24.12% of all bookings. The subsequent popular models are Embraer 175 (Enhanced Winglets) at 12.82%, Embraer 175 at 12.13%, and Boeing 737-800 at 9.16%.

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 $106	Free Cancellation	Rating 7.8 8,704 reviews	Search Delta flights
Qantas Airways	PriceFrom $165	Free Cancellation	Rating 7.5 1,123 reviews	Search Qantas Airways flights
Air Canada	PriceFrom $176	Free Cancellation	Rating 7.1 11,885 reviews	Search Air Canada flights
Porter Airlines	PriceFrom $193	Free Cancellation	Rating 8.0 468 reviews	Search Porter Airlines flights
United Airlines	PriceFrom $222	Free Cancellation	Rating 7.3 10,473 reviews	Search United Airlines flights
American Airlines	PriceFrom $223	Free Cancellation	Rating 7.0 12,224 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 $126

Flights to Vancouverfrom $124

Flights to Montrealfrom $224

Flights to Calgaryfrom $110

Flights to Ottawafrom $232

Flights to Halifaxfrom $326

Flights to Winnipegfrom $293

Flights to Québec Cityfrom $414

Flights to Kelownafrom $258

Flights to St. John'sfrom $442

Flights to Saskatoonfrom $287

Flights to Reginafrom $344

Cheap flights from Illinois to Ontario from $116

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 2/22. 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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WestJet flights from Illinois to Region of Ontario

Our best WestJet 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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Use the filters below to find and compare flights from Illinois to Ontario that are best for you.

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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

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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