How long is the flight from Toronto to Illinois?

Departing from Toronto to Illinois will take you 1h 50m. There are 711 km between Toronto and Illinois. All flights are typically direct.

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

One-way options have recently been found by users for as low as C$ 156 on United Airlines. Other airlines that offer cheap prices include Porter Airlines from C$ 157 and Air Canada from C$ 162 one-way.

In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 mm per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

What are the most popular routes from Toronto to Illinois?

When deciding which route to take from Toronto to Illinois consider Toronto Pearson Intl - Chicago O'Hare Intl, Toronto Pearson Intl - Chicago Midway or Toronto Island - Chicago O'Hare Intl as they are the most popular.

What are the cheapest flights from Toronto to Illinois?

On average you can expect to pay C$ 1,735 for a flight from Toronto to Illinois. The cheapest flight overall is C$ 242 while the most popular route, (Toronto Pearson Intl - Chicago O'Hare Intl) is currently priced at C$ 292.

What are the most reliable airlines from Toronto to Illinois?

No one likes to see their flight delayed. When booking a flight from Toronto to Illinois consider choosing Egyptair (88%), Japan Airlines (82%) or ANA (76%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Toronto to Illinois?

The most popular airlines flying from Toronto to Illinois are Air Canada, United Airlines and Porter Airlines. Something to consider prior to booking your 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.

C$ 183+ Cheap Flights from Toronto to Illinois

Cheap flight deals from Toronto to Illinois

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 20 August 2026.

Thu 24/910:30 a.m. -

1 stop5h 22m

Mon 28/99:55 a.m. -

Nonstop1h 45m

Deal found 18/8C$ 278

Wed 9/910:10 a.m. -

Nonstop1h 50m

Thu 10/93:20 p.m. -

Nonstop1h 40m

Deal found 18/8C$ 280

Fri 25/97:35 p.m. -

Nonstop2h 06m

Mon 28/97:25 a.m. -

Nonstop1h 42m

Deal found 17/8C$ 280

Thu 10/92:00 p.m. -

Nonstop1h 55m

Sun 13/98:40 p.m. -

Nonstop1h 46m

Deal found 17/8C$ 281

Thu 10/91:45 p.m. -

Nonstop1h 50m

Sun 13/911:45 a.m. -

Nonstop1h 40m

Deal found 15/8C$ 281

Thu 10/912:15 p.m. -

Nonstop2h 06m

Sun 13/97:25 a.m. -

Nonstop1h 42m

Deal found 16/8C$ 281

Mon 7/910:10 a.m. -

Nonstop1h 50m

Thu 10/93:20 p.m. -

Nonstop1h 40m

Deal found 16/8C$ 284

Fri 11/91:45 p.m. -

Nonstop1h 50m

Sun 13/911:45 a.m. -

Nonstop1h 40m

Deal found 17/8C$ 285

Fri 18/910:10 a.m. -

Nonstop1h 50m

Tue 22/911:45 a.m. -

Nonstop1h 40m

Deal found 17/8C$ 287

Fri 11/99:00 a.m. -

1 stop6h 52m

Mon 28/95:35 p.m. -

Nonstop1h 43m

Deal found 19/8C$ 288

Tue 15/94:00 p.m. -

1 stop5h 12m

Tue 22/93:40 p.m. -

1 stop5h 13m

Deal found 18/8C$ 289

Mon 7/910:10 a.m. -

Nonstop1h 50m

Wed 9/93:20 p.m. -

Nonstop1h 40m

Deal found 15/8C$ 289

Best flights from Toronto to Illinois
Discover carefully curated flight deals from Toronto to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 20 August 2026.

Thu 24/99:00 p.m. -

Nonstop2h 06m

Sun 27/910:43 a.m. -

Nonstop1h 59m

Deal found 18/8C$ 294

Thu 17/91:45 p.m. -

Nonstop1h 50m

Sun 20/93:20 p.m. -

Nonstop1h 40m

Deal found 16/8C$ 320

Fri 25/97:35 p.m. -

Nonstop2h 06m

Mon 28/97:25 a.m. -

Nonstop1h 42m

Deal found 19/8C$ 320

Mon 14/99:00 p.m. -

Nonstop2h 05m

Mon 21/911:05 a.m. -

1 stop6h 07m

Deal found 17/8C$ 338

Wed 23/96:00 a.m. -

1 stop4h 07m

Mon 28/99:29 a.m. -

1 stop6h 51m

Deal found 15/8C$ 339

Thu 17/910:10 a.m. -

Nonstop1h 50m

Mon 21/93:20 p.m. -

Nonstop1h 40m

Deal found 19/8C$ 320

Thu 10/92:45 p.m. -

Nonstop2h 06m

Sat 19/96:00 a.m. -

1 stop6h 47m

Deal found 15/8C$ 332

Mon 21/912:08 p.m. -

1 stop7h 25m

Mon 28/99:29 a.m. -

1 stop6h 51m

Deal found 15/8C$ 339

Thu 15/106:10 p.m. -

1 stop23h 30m

Sun 18/105:30 p.m. -

1 stop22h 45m

Deal found 19/8C$ 686

Thu 10/91:45 p.m. -

Nonstop1h 50m

Sun 13/911:45 a.m. -

Nonstop1h 40m

Deal found 19/8C$ 320

Wed 30/912:15 p.m. -

Nonstop2h 06m

Wed 7/107:25 a.m. -

Nonstop1h 42m

Deal found 16/8C$ 363

Fri 25/910:15 a.m. -

Nonstop2h 06m

Wed 30/95:00 a.m. -

1 stop7h 47m

Deal found 15/8C$ 332

Sat 26/912:08 p.m. -

1 stop7h 14m

Mon 28/99:29 a.m. -

1 stop6h 51m

Deal found 15/8C$ 339

Wed 2/91:45 p.m. -

Nonstop1h 50m

Wed 9/93:20 p.m. -

Nonstop1h 40m

Deal found 15/8C$ 323

Thu 10/97:35 p.m. -

Nonstop2h 06m

Sun 13/91:55 p.m. -

1 stop6h 35m

Deal found 16/8C$ 410

Sat 5/97:30 a.m. -

1 stop6h 29m

Wed 9/96:00 a.m. -

1 stop4h 43m

Deal found 15/8C$ 341

Fri 25/92:24 p.m. -

1 stop7h 06m

Sun 27/97:05 a.m. -

1 stop7h 10m

Deal found 19/8C$ 341

Fri 11/99:45 a.m. -

1 stop7h 32m

Sun 13/96:40 p.m. -

1 stop3h 19m

Deal found 18/8C$ 341

Fri 4/910:10 a.m. -

Nonstop1h 50m

Sun 13/911:45 a.m. -

Nonstop1h 40m

Deal found 15/8C$ 345

Sun 6/98:20 a.m. -

1 stop4h 39m

Mon 7/910:40 a.m. -

1 stop6h 40m

Deal found 15/8C$ 435

Sat 12/99:45 a.m. -

1 stop8h 12m

Sat 26/99:29 a.m. -

1 stop4h 46m

Deal found 19/8C$ 341

Fri 25/91:45 p.m. -

Nonstop1h 50m

Mon 28/911:45 a.m. -

Nonstop1h 40m

Deal found 18/8C$ 350

Sat 19/98:50 a.m. -

Nonstop2h 03m

Mon 21/93:40 p.m. -

1 stop6h 38m

Deal found 19/8C$ 469

Wed 23/96:00 a.m. -

1 stop4h 07m

Sun 27/99:29 a.m. -

1 stop6h 51m

Deal found 19/8C$ 341

Thu 3/99:00 p.m. -

Nonstop2h 05m

Tue 22/96:00 a.m. -

1 stop4h 43m

Deal found 18/8C$ 420

Thu 17/912:08 p.m. -

1 stop7h 25m

Tue 22/99:29 a.m. -

1 stop6h 51m

Deal found 17/8C$ 341

Fri 4/99:00 p.m. -

Nonstop2h 05m

Wed 9/97:09 a.m. -

Nonstop1h 45m

Deal found 15/8C$ 420

Sat 10/101:45 p.m. -

Nonstop1h 50m

Sun 18/1011:45 a.m. -

Nonstop1h 40m

Deal found 17/8C$ 389

Tue 15/96:00 a.m. -

1 stop7h 39m

Tue 22/99:29 a.m. -

1 stop4h 46m

Deal found 18/8C$ 341

Wed 9/97:35 p.m. -

Nonstop2h 06m

Wed 16/912:55 p.m. -

1 stop4h 56m

Deal found 18/8C$ 436

Find flight deals from Toronto to Illinois

Round-trip from	C$ 278
One-way from	C$ 183
Popular in	July
Cheapest in	February
Average price	C$ 371
Good round-trip deal	C$ 281 or less
Good one-way deal	C$ 189 or less

Air Canada
24/9-28/9
1 total stop
7h 07m total
Toronto to Illinois

Search Deals

Air Canada
5/9
1 total stop
5h 10m total
Toronto to Illinois

Search Deals

Highest demand for flights based on searches. 3% potential increase in price (C$ 17 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 0% potential price decrease (C$ 5 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2026

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoChicago

YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl

YYZORD

Toronto Pearson Intl

Thu 24/9

9:00 p.m.-10:06 p.m.

Nonstop2h 06m

Chicago O'Hare Intl

Sun 27/9

10:43 a.m.-1:42 p.m.

Nonstop1h 59m

C$ 294

Quickest round-trip

TorontoChicago

YTZ Toronto Island - MDW Chicago Midway

YTZMDW

Toronto Island

Thu 17/9

1:45 p.m.-2:35 p.m.

Nonstop1h 50m

Chicago Midway

Sun 20/9

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

Nonstop1h 40m

C$ 320

TorontoChicago

YTZ Toronto Island - ORD Chicago O'Hare Intl

YTZORD

Toronto Island

Fri 25/9

7:35 p.m.-8:41 p.m.

Nonstop2h 06m

Chicago O'Hare Intl

Mon 28/9

7:25 a.m.-10:07 a.m.

Nonstop1h 42m

C$ 320

TorontoChicago

YTZ Toronto Island - MDW Chicago Midway

YTZMDW

Toronto Island

Thu 17/9

10:10 a.m.-11:00 a.m.

Nonstop1h 50m

Chicago Midway

Mon 21/9

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

Nonstop1h 40m

C$ 320

TorontoChicago

YTZ Toronto Island - MDW Chicago Midway

YTZMDW

Toronto Island

Thu 10/9

1:45 p.m.-2:35 p.m.

Nonstop1h 50m

Chicago Midway

Sun 13/9

11:45 a.m.-2:25 p.m.

Nonstop1h 40m

C$ 320

TorontoChicago

YTZ Toronto Island - MDW Chicago Midway

YTZMDW

Toronto Island

Wed 2/9

1:45 p.m.-2:35 p.m.

Nonstop1h 50m

Chicago Midway

Wed 9/9

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

Nonstop1h 40m

C$ 323

TorontoChicago

YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl

YYZORD

Toronto Pearson Intl

Thu 10/9

2:45 p.m.-3:51 p.m.

Nonstop2h 06m

Chicago O'Hare Intl

Sat 19/9

6:00 a.m.-1:47 p.m.

1 stop6h 47m

C$ 332

TorontoChicago

YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl

YYZORD

Toronto Pearson Intl

Fri 25/9

10:15 a.m.-11:21 a.m.

Nonstop2h 06m

Chicago O'Hare Intl

Wed 30/9

5:00 a.m.-1:47 p.m.

1 stop7h 47m

C$ 332

TorontoChicago

YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl

YYZORD

Toronto Pearson Intl

Mon 14/9

9:00 p.m.-10:05 p.m.

Nonstop2h 05m

Chicago O'Hare Intl

Mon 21/9

11:05 a.m.-6:12 p.m.

1 stop6h 07m

C$ 338

TorontoChicago

YYZ Toronto Pearson Intl - MDW Chicago Midway

YYZMDW

Toronto Pearson Intl

Wed 23/9

6:00 a.m.-9:07 a.m.

1 stop4h 07m

Chicago Midway

Mon 28/9

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

1 stop6h 51m

C$ 339

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/8

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

YYZ-ORD

YTZ-MDW

YTZ-ORD

YYZ-MDW

YHM-ORD

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

YTO-USIL

YYZ-ORD

YTZ-MDW

YTZ-ORD

YYZ-MDW

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

Currently, January is the cheapest month in which you can book a flight from Toronto to Illinois (average of C$ 350). Flying from Toronto to Illinois in December is currently the most expensive (average of C$ 427). 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?

A simple way to save on the total cost of your ticket is to fly from Toronto to Illinois in the morning. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight in the evening.

Weekly flight availability from Toronto to Illinois

The most flights from YTO to USIL are scheduled on a Wednesday (72 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (33 on average).

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

Airfare is below average for this route at the moment.

Toronto to Illinois flights typically cost between C$ 339 and C$ 607 in September.
The cheapest round-trip price found within the last 5 days was C$ 278 on Air Canada (24 Sep-28 Sep).

How far ahead should I book a flight from Toronto to Illinois?

The best time to book flights from Toronto to Illinois is 87 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest day to fly from Toronto to Illinois?

Travelers seeking maximum savings on their Toronto to Illinois flight should consider departing on Friday at noon when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Illinois

See what other customers who have flown with Porter Airlines,Air Transat, andUnited Airlines from Toronto to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Porter Airlines

8.0

Very good

457 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

Porter Airlines

8.0

Very good

457 reviews

Porter Airlines

8.0

Very good

457 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

Air Transat

7.8

Good

573 reviews

Porter Airlines

8.0

Very good

457 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

United Airlines

7.4

Good

10,102 reviews

Porter Airlines

8.0

Very good

457 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

American Airlines

7.1

Good

11,976 reviews

Porter Airlines

8.0

Very good

457 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

Air Canada

7.1

Good

11,508 reviews

Porter Airlines

8.0

Very good

457 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

Related info for your journey

How long is the flight from Toronto to Illinois?
Departing from Toronto to Illinois will take you 1h 50m. There are 711 km between Toronto and Illinois. All flights are typically direct.
What are the cheapest airlines to fly from Toronto to Illinois one-way?
One-way options have recently been found by users for as low as C$ 156 on United Airlines. Other airlines that offer cheap prices include Porter Airlines from C$ 157 and Air Canada from C$ 162 one-way.
What are the most popular routes from Toronto to Illinois?
When deciding which route to take from Toronto to Illinois consider Toronto Pearson Intl - Chicago O'Hare Intl, Toronto Pearson Intl - Chicago Midway or Toronto Island - Chicago O'Hare Intl as they are the most popular.
What are the most reliable airlines from Toronto to Illinois?
No one likes to see their flight delayed. When booking a flight from Toronto to Illinois consider choosing Egyptair (88%), Japan Airlines (82%) or ANA (76%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Toronto to Illinois?
On average you can expect to pay C$ 1,735 for a flight from Toronto to Illinois. The cheapest flight overall is C$ 242 while the most popular route, (Toronto Pearson Intl - Chicago O'Hare Intl) is currently priced at C$ 292.
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, January is the cheapest month in which you can book a flight from Toronto to Illinois (average of C$ 350). Flying from Toronto to Illinois in December is currently the most expensive (average of C$ 427). 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

Alternative routes

Complete your trip

Direct flights to United States

Flights by cabin class

Other flight options

Popular flights

Top destinations

Alternative routes for Toronto to Illinois

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 Fort Lauderdale flights

Pierre Elliott Trudeau Intl to LaGuardia flights

Toronto Island to LaGuardia flights

Pierre Elliott Trudeau Intl to Newark flights

Pearson Intl to Los Angeles flights

Pearson Intl to Miami flights

Pearson Intl to Orlando flights

Toronto Island to John F Kennedy Intl flights

Pierre Elliott Trudeau Intl to Fort Lauderdale flights

Pierre Elliott Trudeau Intl to Miami flights

Pearson Intl to Las Vegas flights

Pearson Intl to Dallas/Fort Worth flights

Pierre Elliott Trudeau Intl to John F Kennedy Intl flights

Hamilton to Newark flights

Pearson Intl to Hobby flights

Pearson Intl to Seattle flights

Pearson Intl to San Francisco flights

Toronto Island to Fort Lauderdale flights

Toronto Island to Orlando flights

Pearson Intl to Tampa flights

Pearson Intl to O'Hare Intl flights

Pearson Intl to George Bush Intcntl flights

Pierre Elliott Trudeau Intl to Los Angeles flights

Pierre Elliott Trudeau Intl to Orlando flights

Pearson Intl to Nashville flights

Pearson Intl to Reagan-National flights

Pearson Intl to Boston flights

Pierre Elliott Trudeau Intl to O'Hare Intl flights

Pearson Intl to Atlanta flights

Pierre Elliott Trudeau Intl to Las Vegas flights

Toronto Island to Las Vegas flights

Pearson Intl to San Diego flights

Pierre Elliott Trudeau Intl to Dallas/Fort Worth flights

Pearson Intl to Ontario flights

Pearson Intl to Dulles Intl flights

Pearson Intl to Midway flights

Toronto Island to O'Hare Intl flights

Toronto Island to Boston flights

Ottawa to Newark flights

Toronto Island to Miami flights

Hamilton to Fort Lauderdale flights

Toronto Island to Midway flights

Pierre Elliott Trudeau Intl to Nashville flights

Hamilton to Orlando flights

Pierre Elliott Trudeau Intl to Boston flights

Pierre Elliott Trudeau Intl to Hobby flights

Top 5 airlines flying from Toronto to Illinois

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 134	AverageC$ 476	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Porter Airlines	CheapestC$ 220	AverageC$ 424	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
American Airlines	CheapestC$ 260	AverageC$ 419	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
United Airlines	CheapestC$ 283	AverageC$ 411	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
WestJet	CheapestC$ 352	AverageC$ 446	FlexibilityNo cancel fee	On-time60%	Search WestJet flights

Fly with Cheapflights

How does Cheapflights help users find flights from Toronto to Illinois?

When you search for this flight from Toronto to Illinois, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Toronto to Illinois?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Illinois from Toronto.

Can Cheapflights find flights from Toronto to Illinois with no change fees?

Need flexible booking options for your flight to Illinois from Toronto? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Toronto to Illinois become cheaper?

Of course! You can now track prices for flights from Toronto to Illinois and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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.

Cheap flights from Toronto to Illinois from C$ 183

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Toronto to Illinois

Cheapest flights from Toronto to IllinoisExplore 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 20 August 2026.

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 20 August 2026.

Best flights from Toronto to IllinoisDiscover carefully curated flight deals from Toronto to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 20 August 2026.

Discover carefully curated flight deals from Toronto to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 20 August 2026.

Direct flights from Toronto to IllinoisExplore direct flight options from Toronto to Illinois based on user searches, and compare prices and availability for your desired travel dates. Data last updated 20 August 2026.

Explore direct flight options from Toronto to Illinois based on user searches, and compare prices and availability for your desired travel dates. Data last updated 20 August 2026.

Last-minute flights from Toronto to IllinoisDiscover last-minute flight deals from Toronto to Illinois. Data last updated 20 August 2026 and is based on user searches.

Discover last-minute flight deals from Toronto to Illinois. Data last updated 20 August 2026 and is based on user searches.

One-way flights from Toronto to IllinoisSearch for one-way flight options from Toronto to Illinois. Find affordable one-way fares based on user searches. Data last updated 20 August 2026.

Search for one-way flight options from Toronto to Illinois. Find affordable one-way fares based on user searches. Data last updated 20 August 2026.

Find flight deals from Toronto to Illinois

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

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

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.

Cheapflights Insights

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

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 20 August 2026.

A simple way to save on the total cost of your ticket is to fly from Toronto to Illinois in the morning. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight in the evening.

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 20 August 2026.

The most flights from YTO to USIL are scheduled on a Wednesday (72 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (33 on average).

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

Airfare is below average for this route at the moment.

Toronto to Illinois flights typically cost between C$ 339 and C$ 607 in September.The cheapest round-trip price found within the last 5 days was C$ 278 on Air Canada (24 Sep-28 Sep).

How far ahead should I book a flight from Toronto to Illinois?

The best time to book flights from Toronto to Illinois is 87 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest day to fly from Toronto to Illinois?

Use this chart to determine the cheapest time to fly round-trip from Toronto to Illinois. Price data was last updated on 15 August 2026.

Travelers seeking maximum savings on their Toronto to Illinois flight should consider departing on Friday at noon when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Illinois

See what other customers who have flown with Porter Airlines,Air Transat, andUnited Airlines from Toronto to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from Toronto to Illinois?

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

What are the most popular routes from Toronto to Illinois?

What are the most reliable airlines from Toronto to Illinois?

What are the cheapest flights from Toronto to Illinois?

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

How can I find direct flights from Toronto to Illinois?

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

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

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.

Complete your trip

Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from Toronto to Illinois by cabin class

Find flights from Toronto to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Toronto and Illinois flights

Browse other Toronto and Illinois flight options. Last updated on 20 August 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Toronto to Illinois flights

Consider these flights travelling from Toronto to Illinois.

Top 5 airlines flying from Toronto to Illinois

Fly with Cheapflights

How does Cheapflights help users find flights from Toronto to Illinois?

Why should you use Cheapflights to find cheap flight tickets from Toronto to Illinois?

Can Cheapflights find flights from Toronto to Illinois with no change fees?

Can Cheapflights notify me if prices for flights from Toronto to Illinois become cheaper?

100% Free

Book with Flexibility

Travel Smart

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 20 August 2026.

Best flights from Toronto to Illinois
Discover carefully curated flight deals from Toronto to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 20 August 2026.

Direct flights from Toronto to Illinois
Explore direct flight options from Toronto to Illinois based on user searches, and compare prices and availability for your desired travel dates. Data last updated 20 August 2026.

Last-minute flights from Toronto to Illinois
Discover last-minute flight deals from Toronto to Illinois. Data last updated 20 August 2026 and is based on user searches.

One-way flights from Toronto to Illinois
Search for one-way flight options from Toronto to Illinois. Find affordable one-way fares based on user searches. Data last updated 20 August 2026.

Toronto to Illinois flights typically cost between C$ 339 and C$ 607 in September.
The cheapest round-trip price found within the last 5 days was C$ 278 on Air Canada (24 Sep-28 Sep).