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Cheap flights from Toronto to Illinois from C$ 173

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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — ORD
15 Jun — 22 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Toronto to Illinois

Enter your travel dates to find the best prices.

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 16 May 2026.

Wed 2/910:05 a.m.
YTZ
-
ORD
Nonstop1h 55m
Porter Airlines
Tue 8/911:45 a.m.
ORD
-
YTZ
Nonstop1h 40m
Porter Airlines
Deal found 11/5C$ 278
Wed 23/910:05 a.m.
YTZ
-
ORD
Nonstop1h 55m
Porter Airlines
Sat 26/93:20 p.m.
ORD
-
YTZ
Nonstop1h 40m
Porter Airlines
Deal found 15/5C$ 279
Thu 28/58:55 a.m.
YTZ
-
MDW
Nonstop1h 50m
Porter Airlines
Sun 31/510:30 a.m.
MDW
-
YTZ
Nonstop1h 40m
Porter Airlines
Deal found 13/5C$ 280
Wed 16/91:40 p.m.
YTZ
-
ORD
Nonstop1h 55m
Porter Airlines
Fri 18/93:20 p.m.
ORD
-
YTZ
Nonstop1h 40m
Porter Airlines
Deal found 16/5C$ 280
Sat 13/68:45 a.m.
YTZ
-
MDW
Nonstop1h 50m
Porter Airlines
Wed 17/610:15 a.m.
MDW
-
YTZ
Nonstop1h 40m
Porter Airlines
Deal found 16/5C$ 282
Tue 21/712:15 p.m.
YTZ
-
ORD
Nonstop1h 55m
Air Canada
Fri 24/77:25 a.m.
ORD
-
YTZ
Nonstop1h 41m
Air Canada
Deal found 12/5C$ 282
Mon 8/68:45 a.m.
YTZ
-
MDW
Nonstop1h 50m
Porter Airlines
Fri 12/63:20 p.m.
MDW
-
YTZ
Nonstop1h 40m
Porter Airlines
Deal found 16/5C$ 283
Wed 16/91:40 p.m.
YTZ
-
ORD
Nonstop1h 55m
Porter Airlines
Wed 30/93:20 p.m.
ORD
-
YTZ
Nonstop1h 40m
Porter Airlines
Deal found 15/5C$ 283
Thu 11/68:45 a.m.
YTZ
-
MDW
Nonstop1h 50m
Porter Airlines
Sun 14/610:15 a.m.
MDW
-
YTZ
Nonstop1h 40m
Porter Airlines
Deal found 12/5C$ 286
Fri 25/98:40 p.m.
YTZ
-
ORD
Nonstop1h 55m
Porter Airlines
Mon 28/97:00 a.m.
ORD
-
YTZ
Nonstop1h 40m
Porter Airlines
Deal found 14/5C$ 286
Wed 10/68:45 a.m.
YTZ
-
MDW
Nonstop1h 50m
Porter Airlines
Wed 17/610:15 a.m.
MDW
-
YTZ
Nonstop1h 40m
Porter Airlines
Deal found 13/5C$ 287
Thu 10/91:40 p.m.
YTZ
-
ORD
Nonstop1h 55m
Porter Airlines
Sun 13/93:20 p.m.
ORD
-
YTZ
Nonstop1h 40m
Porter Airlines
Deal found 13/5C$ 287

Find flight deals from Toronto to Illinois

Keep the following information in mind while searching for Toronto to Illinois flight deals. Data was last updated 16 May 2026.

Round-trip from

C$ 278

One-way from

C$ 173

Popular in

May

Cheapest in

July

Average price

C$ 384

Good round-trip deal

C$ 277 or less

Good one-way deal

C$ 155 or less
Porter Airlines
  • Porter Airlines
  • 2/9-8/9
  • Nonstop
  • 3h 35m total
  • Toronto to Illinois
Search Deals
Porter Airlines
  • Porter Airlines
  • 11/6
  • Nonstop
  • 1h 50m total
  • Toronto to Illinois
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 19 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 May 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

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 629,999 searches. Data last updated 16 May 2026.
Use the filters below to find and compare flights from Toronto to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Thu 11/6

8:45 a.m.-9:35 a.m.

Nonstop1h 50m

Chicago Midway

Fri 12/6

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

Nonstop1h 40m

C$ 286

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Tue 2/6

8:45 a.m.-9:35 a.m.

Nonstop1h 50m

Chicago Midway

Wed 17/6

10:15 a.m.-12:55 p.m.

Nonstop1h 40m

C$ 308

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Mon 1/6

8:45 a.m.-9:35 a.m.

Nonstop1h 50m

Chicago Midway

Wed 17/6

10:15 a.m.-12:55 p.m.

Nonstop1h 40m

C$ 308

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Tue 2/6

8:45 a.m.-9:35 a.m.

Nonstop1h 50m

Chicago Midway

Sat 13/6

10:15 a.m.-12:55 p.m.

Nonstop1h 40m

C$ 308

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Tue 2/6

8:45 a.m.-9:35 a.m.

Nonstop1h 50m

Chicago Midway

Tue 16/6

10:15 a.m.-12:55 p.m.

Nonstop1h 40m

C$ 308

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Sat 13/6

11:00 a.m.-12:00 p.m.

Nonstop2h 00m

Chicago O'Hare Intl

Sun 14/6

9:20 p.m.-11:59 p.m.

Nonstop1h 39m

C$ 320

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Mon 15/6

8:45 a.m.-9:35 a.m.

Nonstop1h 50m

Chicago Midway

Mon 22/6

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

Nonstop1h 40m

C$ 334

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Tue 16/6

8:45 a.m.-9:35 a.m.

Nonstop1h 50m

Chicago Midway

Mon 22/6

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

Nonstop1h 40m

C$ 334

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Mon 15/6

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

Nonstop1h 50m

Chicago Midway

Thu 18/6

10:25 a.m.-1:05 p.m.

Nonstop1h 40m

C$ 334

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Fri 19/6

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

Nonstop2h 05m

Chicago O'Hare Intl

Sun 28/6

9:20 p.m.-11:59 p.m.

Nonstop1h 39m

C$ 341

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/5

Showing 1-10 of 60 resultsSorted by cheapest first
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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

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 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 C$ 311). Flying from Toronto to Illinois in December is currently the most expensive (average of C$ 1,285). 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 16 May 2026.

A simple way to save on the total cost of your ticket is to fly from Toronto to Illinois at noon. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight in the evening.

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 16 May 2026.

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

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 16 May 2026.

The most flights from YTO to USIL are scheduled on a Wednesday (73 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (48 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 16 May 2026.
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
439 reviews
Check prices

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.0

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Porter Airlines
8.0
Very good
439 reviews
Porter Airlines
8.0
Very good
439 reviews
Check prices

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.0

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Transat
7.8
Good
552 reviews
Porter Airlines
8.0
Very good
439 reviews
Check prices

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.0

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
United Airlines
7.4
Good
9,730 reviews
Porter Airlines
8.0
Very good
439 reviews
Check prices

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.0

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
American Airlines
7.1
Good
11,659 reviews
Porter Airlines
8.0
Very good
439 reviews
Check prices

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.0

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Canada
7.1
Good
11,054 reviews
Porter Airlines
8.0
Very good
439 reviews
Check prices

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Entertainment

7.0

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

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.

  • 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. This flight may include one or multiple stops.

  • 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$ 139 on United Airlines. Other airlines that offer cheap prices include Porter Airlines from C$ 141 and Air Canada from C$ 145 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 Island - Chicago O'Hare Intl or Toronto Pearson Intl - Chicago Midway 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 EVA Air (100%), Copa Airlines (89%) or Japan Airlines (75%) 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$ 1,747 for a flight from Toronto to Illinois. The cheapest flight overall is C$ 199 while the most popular route, (Toronto Pearson Intl - Chicago O'Hare Intl) is currently priced at C$ 319.

  • 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 C$ 311). Flying from Toronto to Illinois in December is currently the most expensive (average of C$ 1,285). 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

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Alternative routes for Toronto to Illinois

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

Top 5 airlines flying from Toronto to Illinois

Discover the top 5 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 629,999 searches. Data last updated 16 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 113AverageC$ 382FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
American AirlinesCheapestC$ 223AverageC$ 413FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 242AverageC$ 453FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 262AverageC$ 396FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 367AverageC$ 472FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

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