HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$103+ Cheap flights from Toronto (YTO) to Illinois

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — ORD
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Toronto to Illinois with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Toronto to Illinois

Keep the following information in mind while searching for Toronto to Illinois flight deals. Data was last updated July 31, 2025.

Round-trip from

$147
(Air Canada)

One-way from

$103
(Booking.com)

Popular in

December

Cheapest in

June

Average price

$270

Good round-trip deal

$170 or less

Good one-way deal

$101 or less
From Toronto (YTO) to Illinois
Search Deals
One-way flight from Toronto (YTO) to Illinois
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
Price to beat on a round-trip flight from Toronto (YTO) to Illinois.
Search Deals
Price to beat on a one-way flight from Toronto (YTO) to Illinois.
Search Deals

Find flight deals from Toronto to Illinois

Cheapest flights from Toronto to Illinois
Explore the most affordable flight options available from Toronto to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Air Canada deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/712:05 pmYYZ - ORD
Nonstop1h 56mAir Canada
Sun 11/93:55 pmORD - YYZ
Nonstop1h 39mAir Canada
Deal found 7/30$147
This SmartFares deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/163:35 pmYTZ - MDW
Nonstop1h 49mPorter Airlines
Mon 9/225:20 pmMDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 7/29$149
This Booking.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/133:25 pmYTZ - ORD
1 stop5h 46mAir Canada
Sat 9/203:35 pmORD - YTZ
1 stop4h 59mAir Canada
Deal found 7/29$155
This Cheapflightsfares deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/19:00 amYTZ - MDW
Nonstop1h 50mAir Transat
Wed 9/39:35 amMDW - YTZ
Nonstop1h 42mAir Transat
Deal found 7/29$166
This Kissandfly.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/45:15 pmYYZ - ORD
Nonstop1h 57mLufthansa
Sun 9/79:12 pmORD - YYZ
Nonstop1h 46mLufthansa
Deal found 7/30$182
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/205:15 pmYYZ - ORD
Nonstop1h 57mUnited Airlines
Sat 9/69:12 pmORD - YYZ
Nonstop1h 46mUnited Airlines
Deal found 7/30$189
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/73:49 pmYYZ - ORD
1 stop6h 21mAmerican Airlines
Sun 10/125:22 amORD - YYZ
1 stop4h 48mAmerican Airlines
Deal found 7/29$196
This Mytrip deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/257:50 amYTZ - MDW
Nonstop1h 49mMultiple Airlines
Mon 9/295:20 pmMDW - YTZ
Nonstop1h 42mMultiple Airlines
Deal found 7/29$196
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/16:30 amYYZ - ORD
1 stop7h 15mDelta
Sun 9/217:10 amORD - YYZ
1 stop3h 10mDelta
Deal found 7/31$212
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1312:14 pmYYZ - MDW
1 stop7h 21mDelta
Sat 9/206:15 pmMDW - YYZ
1 stop3h 41mDelta
Deal found 7/30$212
This FlightHub deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1711:52 amYYZ - MDW
1 stop11h 22mWestJet
Tue 10/2112:48 pmMDW - YYZ
1 stop8h 07mWestJet
Deal found 7/31$268
This Mytrip deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/228:25 amYTZ - ORD
2 stops14h 33mMultiple Airlines
Tue 9/235:17 pmORD - YTZ
2 stops20h 28mMultiple Airlines
Deal found 7/30$310

Cheapflights Fare Finder

 
Customize your flight search to find flights from Toronto to Illinois 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, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Toronto to Illinois that are best for you.

Fly from

Toronto

Fly to

Illinois

Route

Depart

Return

Price

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Fri 11/7

12:05 pm-1:01 pm

Nonstop1h 56m

Chicago O'Hare Intl

Sun 11/9

3:55 pm-6:34 pm

Nonstop1h 39m

$147

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Tue 9/16

3:35 pm-4:24 pm

Nonstop1h 49m

Chicago Midway

Mon 9/22

5:20 pm-8:02 pm

Nonstop1h 42m

$149

TorontoChicago

YTZ - ORD

YTZORD

Toronto Island

Sat 9/13

3:25 pm-8:11 pm

1 stop5h 46m

Chicago O'Hare Intl

Sat 9/20

3:35 pm-9:34 pm

1 stop4h 59m

$155

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Mon 9/1

9:00 am-9:50 am

Nonstop1h 50m

Chicago Midway

Wed 9/3

9:35 am-12:17 pm

Nonstop1h 42m

$166

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 9/4

5:15 pm-6:12 pm

Nonstop1h 57m

Chicago O'Hare Intl

Sun 9/7

9:12 pm-11:58 pm

Nonstop1h 46m

$182

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Wed 8/20

5:15 pm-6:12 pm

Nonstop1h 57m

Chicago O'Hare Intl

Sat 9/6

9:12 pm-11:58 pm

Nonstop1h 46m

$189

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Tue 10/7

3:49 pm-9:10 pm

1 stop6h 21m

Chicago O'Hare Intl

Sun 10/12

5:22 am-11:10 am

1 stop4h 48m

$196

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Thu 9/25

7:50 am-8:39 am

Nonstop1h 49m

Chicago Midway

Mon 9/29

5:20 pm-8:02 pm

Nonstop1h 42m

$196

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Fri 9/12

4:12 pm-8:20 pm

1 stop5h 08m

Chicago O'Hare Intl

Sun 9/14

7:10 am-3:22 pm

1 stop7h 12m

$212

TorontoChicago

YYZ - MDW

YYZMDW

Toronto Pearson Intl

Sat 9/13

12:14 pm-6:35 pm

1 stop7h 21m

Chicago Midway

Sat 9/20

6:15 pm-10:56 pm

1 stop3h 41m

$212

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 49 results
1
2
3
...
5

Best time to book a flight from Toronto to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Toronto with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Toronto to Illinois

What is the cheapest month to book a flight from Toronto to Illinois?

Currently, August is the cheapest month in which you can book a flight from Toronto to Illinois (average of $245). Flying from Toronto to Illinois in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YTO to IL?

Find hourly flight availability from Toronto to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Toronto to Illinois as you normally would.

Weekly flight availability from Toronto to Illinois

Explore weekly flight availability from Toronto to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 31, 2025.

The most flights from YTO to USIL are scheduled on a Thursday (60 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (32 on average).

How much does it cost to fly round-trip from Toronto to Illinois?

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated July 31, 2025.
Get a feel of what it's like to fly with Porter Airlines, Delta, and Air Transat from Toronto to Illinois by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
318 reviews

Boarding

8.2

Food

7.6

Comfort

8.0

Crew

8.7

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Porter Airlines
8.0
Very good
318 reviews
Porter Airlines
8.0
Very good
318 reviews

Boarding

8.2

Food

7.6

Comfort

8.0

Crew

8.7

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Delta
8.0
Very good
7,980 reviews
Porter Airlines
8.0
Very good
318 reviews

Boarding

8.2

Food

7.6

Comfort

8.0

Crew

8.7

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Transat
7.7
Good
424 reviews
Porter Airlines
8.0
Very good
318 reviews

Boarding

8.2

Food

7.6

Comfort

8.0

Crew

8.7

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
United Airlines
7.4
Good
8,902 reviews
Porter Airlines
8.0
Very good
318 reviews

Boarding

8.2

Food

7.6

Comfort

8.0

Crew

8.7

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
8.0
Very good
318 reviews

Boarding

8.2

Food

7.6

Comfort

8.0

Crew

8.7

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

Related info for your journey

Find useful and relevant information for your journey from Toronto to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Toronto to Illinois one-way?

    $103 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on Porter Airlines and Air Transat, with prices starting from $103 and $106, respectively.

  • What are the most popular routes from Toronto to Illinois?

    Most travelers choose Toronto Pearson Intl - Chicago O'Hare Intl, Toronto Island - Chicago Midway or Toronto Pearson Intl - Chicago Midway when deciding on the best route from Toronto to Illinois.

  • What are the most reliable airlines from Toronto to Illinois?

    Before booking your flight to Illinois from Toronto, check out the most reliable airlines to get you to your destination on time: Cathay Pacific (100%), SkyWest Airlines (91%), Egyptair( 90%).

  • What are the cheapest flights from Toronto to Illinois?

    While on average a flight from Toronto to Illinois is generally $2,979, our data shows the cheapest flight currently is $122. When looking at the most popular route, (Toronto Pearson Intl - Chicago O'Hare Intl), you can expect to pay $172 for that flight.

  • Can I find deals for flights from Toronto to Illinois that include hotel bookings?

    Yes. In addition to deals on Toronto to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Toronto to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Toronto to Illinois.

  • Can I find deals for business class flights from Toronto to Illinois?

    Yes. Cheapflights offers flight deals from Toronto to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Toronto to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Toronto to Illinois (average of $245). Flying from Toronto to Illinois in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Toronto to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Newark flights
Toronto Island to Newark flights
Pearson Intl to John F Kennedy Intl flights
Pearson Intl to LaGuardia flights
Pearson Intl to Los Angeles flights
Pierre Elliott Trudeau Intl to Fort Lauderdale flights
Pierre Elliott Trudeau Intl to Newark flights
Pierre Elliott Trudeau Intl to LaGuardia flights
Pearson Intl to Fort Lauderdale flights
Pearson Intl to Las Vegas flights
Pearson Intl to O'Hare Intl flights
Pearson Intl to San Francisco flights
Pearson Intl to Miami flights
Pierre Elliott Trudeau Intl to John F Kennedy Intl flights
Pearson Intl to Dallas/Fort Worth flights
Pierre Elliott Trudeau Intl to Miami flights
Pearson Intl to Orlando flights
Pearson Intl to Boston flights
Pierre Elliott Trudeau Intl to Orlando flights
Toronto Island to Boston flights
Pearson Intl to Seattle flights
Pearson Intl to Dulles Intl flights
Pierre Elliott Trudeau Intl to Las Vegas flights
Pierre Elliott Trudeau Intl to Los Angeles flights
Pearson Intl to Hobby flights
Toronto Island to Fort Lauderdale flights
Pearson Intl to Nashville flights
Pearson Intl to Reagan-National flights
Pearson Intl to George Bush Intcntl flights
Toronto Island to Orlando flights
Pearson Intl to San Diego flights
Pearson Intl to Atlanta flights
Toronto Island to Midway flights
Pierre Elliott Trudeau Intl to Boston flights
Pearson Intl to Midway flights
Pearson Intl to Honolulu flights
Pierre Elliott Trudeau Intl to O'Hare Intl flights
Toronto Island to Dulles Intl flights
Pearson Intl to Minneapolis flights
Pearson Intl to Denver flights
Pearson Intl to Tampa flights
Pierre Elliott Trudeau Intl to San Francisco flights
Pearson Intl to Philadelphia flights
Pierre Elliott Trudeau Intl to Nashville flights
Ottawa to Newark flights
Pearson Intl to Charlotte flights
Pearson Intl to Austin flights
Toronto Island to Dallas/Fort Worth flights
Pearson Intl to Baltimore flights
Pierre Elliott Trudeau Intl to Dallas/Fort Worth flights

Top 4 airlines flying from Toronto to Illinois

Discover the top 4 airlines that operate flights from Toronto to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$155Average$270FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$158Average$257FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$165Average$289FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$211Average$334FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.