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Cheap flights from Canada to Illinois from C$ 188

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 29/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
3 Sep — 10 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Canada to Illinois

Enter your travel dates to find the best prices.

Cheapest flights from Canada to Illinois
Explore the most affordable flight options available from Canada to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 August 2026.

Sat 5/97:00 a.m. -
Nonstop2h 00m
Sun 13/95:35 p.m. -
Nonstop1h 43m
Deal found 3/8C$ 283
Tue 1/97:35 p.m. -
Nonstop2h 06m
Wed 9/92:00 p.m. -
Nonstop1h 42m
Deal found 4/8C$ 283
Fri 11/91:45 p.m. -
Nonstop1h 50m
Tue 15/911:45 a.m. -
Nonstop1h 40m
Deal found 4/8C$ 284
Thu 27/87:35 p.m. -
Nonstop2h 06m
Mon 31/88:40 a.m. -
1 stop6h 11m
Deal found 3/8C$ 284
Sat 12/92:00 p.m. -
Nonstop1h 55m
Sun 13/92:15 p.m. -
Nonstop1h 46m
Deal found 4/8C$ 287
Fri 6/114:35 p.m. -
Nonstop1h 55m
Mon 9/116:10 p.m. -
Nonstop1h 40m
Deal found 4/8C$ 287
Mon 14/96:50 p.m. -
Nonstop1h 58m
Mon 21/99:55 a.m. -
Nonstop1h 45m
Deal found 31/7C$ 288
Tue 25/88:55 a.m. -
Nonstop1h 50m
Thu 27/810:25 a.m. -
Nonstop1h 40m
Deal found 31/7C$ 290
Tue 8/912:15 p.m. -
Nonstop2h 06m
Tue 15/98:45 a.m. -
1 stop6h 05m
Deal found 2/8C$ 290
Sat 29/84:00 p.m. -
Nonstop1h 57m
Tue 1/92:15 p.m. -
Nonstop1h 46m
Deal found 30/7C$ 291
Fri 28/88:55 a.m. -
Nonstop1h 50m
Wed 2/93:20 p.m. -
Nonstop1h 40m
Deal found 4/8C$ 291
Thu 15/1012:15 p.m. -
Nonstop2h 04m
Sun 18/108:45 a.m. -
1 stop6h 05m
Deal found 3/8C$ 291

Find flight deals from Canada to Illinois

Keep the following information in mind while searching for Canada to Illinois flight deals. Data was last updated 4 August 2026.

Round-trip from

C$ 283

One-way from

C$ 188

Popular in

May

Cheapest in

September

Average price

C$ 388

Good round-trip deal

C$ 288 or less

Good one-way deal

C$ 182 or less
Air Canada
  • Air Canada
  • 5/9-13/9
  • Nonstop
  • 3h 43m total
  • Canada to Illinois
Search Deals
Air Canada
  • Air Canada
  • 29/8
  • Nonstop
  • 1h 55m total
  • Canada to Illinois
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease (C$ 4 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 Canada to Illinois.
Search Deals
Price to beat on a one-way flight from Canada to Illinois.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Canada 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 4 August 2026.
Use the filters below to find and compare flights from Canada 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

Sun 13/9

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

Nonstop1h 50m

Chicago Midway

Sat 19/9

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

Nonstop1h 40m

C$ 284

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Wed 23/9

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

Nonstop1h 50m

Chicago Midway

Sun 27/9

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

Nonstop1h 40m

C$ 284

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Tue 15/9

6:50 p.m.-7:48 p.m.

Nonstop1h 58m

Chicago O'Hare Intl

Fri 18/9

2:15 p.m.-5:01 p.m.

Nonstop1h 46m

C$ 291

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Tue 1/9

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

Nonstop2h 05m

Chicago O'Hare Intl

Tue 8/9

8:45 a.m.-3:33 p.m.

1 stop5h 48m

C$ 294

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Sun 20/9

7:00 a.m.-8:00 a.m.

Nonstop2h 00m

Chicago O'Hare Intl

Tue 22/9

8:45 a.m.-3:33 p.m.

1 stop5h 48m

C$ 294

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Sat 22/8

8:50 a.m.-9:40 a.m.

Nonstop1h 50m

Chicago Midway

Thu 27/8

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

Nonstop1h 40m

C$ 298

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Tue 18/8

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

Nonstop1h 50m

Chicago Midway

Tue 25/8

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

Nonstop1h 40m

C$ 298

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Wed 9/9

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

Nonstop1h 50m

Chicago Midway

Thu 10/9

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

Nonstop1h 40m

C$ 309

TorontoChicago

YTZ - ORD

YTZORD

Toronto Island

Fri 6/11

4:35 p.m.-5:30 p.m.

Nonstop1h 55m

Chicago O'Hare Intl

Tue 10/11

6:10 p.m.-8:50 p.m.

Nonstop1h 40m

C$ 309

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Thu 10/9

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

Nonstop1h 50m

Chicago Midway

Sun 13/9

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

Nonstop1h 40m

C$ 311

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/8

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Canada to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Canada 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 Canada to Illinois

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

Currently, January is the cheapest month in which you can book a flight from Canada to Illinois (average of C$ 395). Flying from Canada to Illinois in July is currently the most expensive (average of C$ 499). 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 CA to IL?

Find hourly flight availability from Canada 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 4 August 2026.

When flying from Canada to Illinois, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 28% versus a flight at noon.

Weekly flight availability from Canada to Illinois

Explore weekly flight availability from Canada 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 4 August 2026.

The most flights from CA0 to USIL are scheduled on a Friday (71 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (37 on average).

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

Booking 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from Canada to Illinois. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Use this chart to determine the cheapest time to fly round-trip from Canada to Illinois. Price data was last updated on 1 August 2026.

Travelers seeking maximum savings on their Canada to Illinois flight should consider departing on Friday mornings 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

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 4 August 2026.
Check out reviews from past customers who have flown with Porter Airlines,United Airlines, andWestJet from Canada to Illinois to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
450 reviews
Check prices

Crew

8.6

Entertainment

6.9

Overall

8.0

Comfort

8.0

Food

7.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Porter Airlines
8.0
Very good
450 reviews
Porter Airlines
8.0
Very good
450 reviews
Check prices

Crew

8.6

Entertainment

6.9

Overall

8.0

Comfort

8.0

Food

7.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
United Airlines
7.4
Good
10,060 reviews
Porter Airlines
8.0
Very good
450 reviews
Check prices

Crew

8.6

Entertainment

6.9

Overall

8.0

Comfort

8.0

Food

7.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
WestJet
7.2
Good
3,426 reviews
Porter Airlines
8.0
Very good
450 reviews
Check prices

Crew

8.6

Entertainment

6.9

Overall

8.0

Comfort

8.0

Food

7.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
American Airlines
7.1
Good
11,849 reviews
Porter Airlines
8.0
Very good
450 reviews
Check prices

Crew

8.6

Entertainment

6.9

Overall

8.0

Comfort

8.0

Food

7.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Air Canada
7.1
Good
11,428 reviews
Porter Airlines
8.0
Very good
450 reviews
Check prices

Crew

8.6

Entertainment

6.9

Overall

8.0

Comfort

8.0

Food

7.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

Related info for your journey

Find useful and relevant information for your journey from Canada 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 Canada to Illinois?

    Porter Airlines, Air Canada, and United Airlines can get you from Canada to Illinois in just under 1h 50m. Your travel time will be generally consistent. The distance between Canada and Illinois is about 711 km. Most flights are nonstop.

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

    The cheapest airlines for a one-way flight from Canada to Illinois are WestJet (C$ 130), Porter Airlines (C$ 136), and Air Canada (C$ 152).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Canada 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 Canada to Illinois?

    Currently, January is the cheapest month in which you can book a flight from Canada to Illinois (average of C$ 395). Flying from Canada to Illinois in July is currently the most expensive (average of C$ 499). 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.

Top 6 airlines flying from Canada to Illinois

Discover the top 6 airlines that operate flights from Canada 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 4 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 123AverageC$ 641FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 143AverageC$ 397FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 187AverageC$ 561FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 188AverageC$ 434FlexibilityNo cancel feeOn-time60%
Search WestJet flights
American AirlinesCheapestC$ 199AverageC$ 482FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Porter AirlinesCheapestC$ 201AverageC$ 435FlexibilityNo cancel feeOn-time52%
Search Porter Airlines 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 Canada to Illinois?

When you search for this flight from Canada 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 Canada to Illinois?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Canada to Illinois.

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

Certainly. Search results for flights to Illinois from Canada shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Not ready to book yet? You can track prices for flights from Canada to Illinois on Cheapflights with our Price Alert feature and get notified when better prices are available.

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