Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Illinois to Ontario from C$ 76

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 10/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Illinois to Ontario

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:40 p.m. - 9:29 p.m.
ORD
-
YYZ
1h 49mdirect
American Airlines Logo
11:38 a.m. - 12:33 p.m.
YYZ
-
ORD
1h 55mdirect
C$ 255American Airlines
Thu, 19 Feb - Sun, 22 Feb
Porter Airlines Logo
12:45 p.m. - 3:27 p.m.
MDW
-
YTZ
1h 42mdirect
Porter Airlines Logo
11:00 a.m. - 11:50 a.m.
YTZ
-
MDW
1h 50mdirect
C$ 256Porter Airlines
Sat, 31 Jan - Sat, 7 Feb
Multiple Airlines Logo
8:43 p.m. - 2:40 p.m.
ORD
-
YYZ
16h 57m1 stop
Multiple Airlines Logo
12:05 p.m. - 1:01 p.m.
YYZ
-
ORD
1h 56mdirect
C$ 256Multiple Airlines
Thu, 5 Feb - Sun, 8 Feb
United Airlines Logo
1:13 p.m. - 4:02 p.m.
ORD
-
YYZ
1h 49mdirect
United Airlines Logo
9:00 p.m. - 10:04 p.m.
YYZ
-
ORD
2h 04mdirect
C$ 260United Airlines
Sun, 8 Feb - Sun, 15 Feb
Multiple Airlines Logo
7:00 a.m. - 11:54 p.m.
ORD
-
YYZ
15h 54m1 stop
Multiple Airlines Logo
12:15 p.m. - 9:03 p.m.
YYZ
-
ORD
33h 48m3 stops
C$ 262Multiple Airlines
Fri, 23 Jan - Sun, 25 Jan
Air Canada Logo
8:00 a.m. - 10:40 a.m.
ORD
-
YYZ
1h 40mdirect
Air Canada Logo
2:15 p.m. - 3:10 p.m.
YYZ
-
ORD
1h 55mdirect
C$ 265Air Canada
Sat, 31 Jan - Sat, 7 Feb
Air Canada Logo
8:40 p.m. - 11:19 p.m.
ORD
-
YYZ
1h 39mdirect
Air Canada Logo
6:15 a.m. - 11:06 a.m.
YYZ
-
ORD
5h 51m1 stop
C$ 266Air Canada
Sun, 1 Feb - Sat, 7 Feb
United Airlines Logo
3:50 p.m. - 9:42 p.m.
ORD
-
YUL
4h 52m1 stop
United Airlines Logo
4:45 p.m. - 6:45 p.m.
YUL
-
ORD
3h 00mdirect
C$ 278United Airlines
Sat, 14 Feb - Sat, 21 Feb
Delta Logo
9:33 a.m. - 4:12 p.m.
MDW
-
YYZ
5h 39m1 stop
Delta Logo
7:45 a.m. - 12:46 p.m.
YYZ
-
MDW
6h 01m1 stop
C$ 322Delta
Thu, 5 Feb - Mon, 9 Feb
Delta Logo
6:00 a.m. - 4:53 p.m.
MDW
-
YUL
9h 53m1 stop
Delta Logo
6:00 a.m. - 12:46 p.m.
YUL
-
MDW
7h 46m1 stop
C$ 327Delta
Thu, 12 Feb - Sun, 15 Feb

American Airlines flights from Illinois to Region of Ontario

Our best American Airlines deals on Illinois to Region of Ontario flight tickets
American Airlines
19 Feb
ORD6:40 p.m.Chicago O'Hare Intl
1h 49m
YYZ9:29 p.m.Toronto Pearson Intl
22 Feb
YYZ11:38 a.m.Toronto Pearson Intl
1h 55m
ORD12:33 p.m.Chicago O'Hare Intl
C$ 255
Find similar
American Airlines
13 Feb
ORD8:19 a.m.Chicago O'Hare Intl
6h 11m
1 stop
YYZ3:30 p.m.Toronto Pearson Intl
15 Feb
YYZ6:18 p.m.Toronto Pearson Intl
2h 00m
ORD7:18 p.m.Chicago O'Hare Intl
C$ 269
Find similar
American Airlines
19 Feb
ORD6:40 a.m.Chicago O'Hare Intl
9h 48m
1 stop
YYZ5:28 p.m.Toronto Pearson Intl
22 Feb
YYZ11:38 a.m.Toronto Pearson Intl
1h 55m
ORD12:33 p.m.Chicago O'Hare Intl
C$ 271
Find similar

United Airlines flights from Illinois to Region of Ontario

Our best United Airlines deals on Illinois to Region of Ontario flight tickets
United Airlines
8 Feb
ORD1:13 p.m.Chicago O'Hare Intl
1h 49m
YYZ4:02 p.m.Toronto Pearson Intl
15 Feb
YYZ9:00 p.m.Toronto Pearson Intl
2h 04m
ORD10:04 p.m.Chicago O'Hare Intl
C$ 260
Find similar
United Airlines
14 Feb
ORD3:50 p.m.Chicago O'Hare Intl
4h 52m
1 stop
YUL9:42 p.m.Montreal Pierre Elliott Trudeau Intl
21 Feb
YUL4:45 p.m.Montreal Pierre Elliott Trudeau Intl
3h 00m
ORD6:45 p.m.Chicago O'Hare Intl
C$ 278
Find similar
United Airlines
7 Feb
ORD7:10 a.m.Chicago O'Hare Intl
5h 18m
1 stop
YUL1:28 p.m.Montreal Pierre Elliott Trudeau Intl
11 Feb
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
6h 05m
1 stop
ORD12:05 p.m.Chicago O'Hare Intl
C$ 285
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Region of Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 18 December 2025.
Use the filters below to find and compare flights from Illinois to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 19/2

6:40 p.m.-9:29 p.m.

Nonstop1h 49m

Toronto Pearson Intl

Sun 22/2

11:38 a.m.-12:33 p.m.

Nonstop1h 55m

C$ 255

ChicagoToronto

MDW - YTZ

MDWYTZ

Chicago Midway

Sat 31/1

12:45 p.m.-3:27 p.m.

Nonstop1h 42m

Toronto Island

Sat 7/2

11:00 a.m.-11:50 a.m.

Nonstop1h 50m

C$ 256

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 5/2

8:43 p.m.-2:40 p.m.

1 stop16h 57m

Toronto Pearson Intl

Sun 8/2

12:05 p.m.-1:01 p.m.

Nonstop1h 56m

C$ 256

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Sun 8/2

1:13 p.m.-4:02 p.m.

Nonstop1h 49m

Toronto Pearson Intl

Sun 15/2

9:00 p.m.-10:04 p.m.

Nonstop2h 04m

C$ 260

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Fri 23/1

7:00 a.m.-11:54 p.m.

1 stop15h 54m

Toronto Pearson Intl

Sun 25/1

12:15 p.m.-9:03 p.m.

3 stops33h 48m

C$ 262

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Sat 31/1

8:00 a.m.-10:40 a.m.

Nonstop1h 40m

Toronto Pearson Intl

Sat 7/2

2:15 p.m.-3:10 p.m.

Nonstop1h 55m

C$ 265

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Sun 1/2

8:40 p.m.-11:19 p.m.

Nonstop1h 39m

Toronto Pearson Intl

Sat 7/2

6:15 a.m.-11:06 a.m.

1 stop5h 51m

C$ 266

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 14/2

3:50 p.m.-9:42 p.m.

1 stop4h 52m

Montreal Pierre Elliott Trudeau Intl

Sat 21/2

4:45 p.m.-6:45 p.m.

Nonstop3h 00m

C$ 278

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Thu 5/2

9:33 a.m.-4:12 p.m.

1 stop5h 39m

Toronto Pearson Intl

Mon 9/2

7:45 a.m.-12:46 p.m.

1 stop6h 01m

C$ 322

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Thu 12/2

6:00 a.m.-4:53 p.m.

1 stop9h 53m

Montreal Pierre Elliott Trudeau Intl

Sun 15/2

6:00 a.m.-12:46 p.m.

1 stop7h 46m

C$ 327

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Ontario from

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

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$ 288. 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$ 322.

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$ 330. The most expensive day to fly to Region of Ontario is Monday, with ticket prices averaging around C$ 462.

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 afternoon. Flights from Illinois to Region of Ontario during this time can be as low as C$ 298. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 463 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 Pearson Intl 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$ 410 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$ 209 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$ 162

Fastest flight time

1h 39m

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$ 162. The best round-trip flight deal from Illinois to Region of Ontario found on momondo in the last 72 hours is C$ 280.
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 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?

  • 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?

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
American AirlinesPriceFrom C$ 150Free CancellationRating
7.2
11,055 reviews
Search American Airlines flights
Air CanadaPriceFrom C$ 203Free CancellationRating
7.1
10,534 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 259Free CancellationRating
7.4
9,093 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

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 17/1
Sat 24/1
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ontario

Popular Cities in Ontario

Popular flights according to clicks in the last 7 days on momondo
Flights to Torontofrom C$ 81
Flights to Vancouverfrom C$ 68
Flights to Montrealfrom C$ 59
Flights to Calgaryfrom C$ 74
Flights to Ottawafrom C$ 185
Flights to Winnipegfrom C$ 121
Flights to Halifaxfrom C$ 77
Flights to Kelownafrom C$ 65
Flights to Saskatoonfrom C$ 132
Flights to Reginafrom C$ 145
Flights to St. John'sfrom C$ 306
Flights to Québec Cityfrom C$ 329