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Cheap flights from Canada to Illinois from C$ 135

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 30/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
4 Apr — 11 Apr1
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 5 March 2026.

Thu 30/46:50 a.m.
YUL
-
MDW
1 stop4h 25m
Porter Airlines
Mon 11/53:20 p.m.
MDW
-
YUL
1 stop5h 50m
Porter Airlines
Deal found 2/3C$ 213
Sun 19/49:50 a.m.
YUL
-
MDW
1 stop6h 30m
Porter Airlines
Fri 24/44:05 p.m.
MDW
-
YUL
1 stop5h 40m
Porter Airlines
Deal found 2/3C$ 215
Fri 17/49:00 a.m.
YYC
-
ORD
Nonstop3h 35m
WestJet
Fri 24/42:20 p.m.
ORD
-
YYC
Nonstop3h 55m
WestJet
Deal found 5/3C$ 216
Thu 30/46:50 a.m.
YUL
-
MDW
1 stop4h 25m
Porter Airlines
Tue 12/53:20 p.m.
MDW
-
YUL
1 stop5h 50m
Porter Airlines
Deal found 3/3C$ 216
Wed 15/46:50 a.m.
YUL
-
MDW
1 stop4h 25m
Porter Airlines
Fri 24/44:05 p.m.
MDW
-
YUL
1 stop5h 40m
Porter Airlines
Deal found 2/3C$ 217
Wed 6/56:30 a.m.
YUL
-
MDW
1 stop4h 10m
Porter Airlines
Mon 11/510:25 a.m.
MDW
-
YUL
1 stop6h 50m
Porter Airlines
Deal found 4/3C$ 220
Fri 8/56:30 a.m.
YUL
-
MDW
1 stop4h 10m
Porter Airlines
Sun 10/53:20 p.m.
MDW
-
YUL
1 stop3h 50m
Porter Airlines
Deal found 3/3C$ 223
Thu 30/412:00 p.m.
YYC
-
ORD
Nonstop3h 40m
WestJet
Thu 7/55:30 p.m.
ORD
-
YYC
Nonstop3h 55m
WestJet
Deal found 3/3C$ 224
Fri 1/512:00 p.m.
YYC
-
ORD
Nonstop3h 40m
WestJet
Mon 4/55:30 p.m.
ORD
-
YYC
Nonstop3h 55m
WestJet
Deal found 4/3C$ 226
Thu 26/37:00 a.m.
YUL
-
ORD
1 stop7h 01m
Air Canada
Mon 30/312:50 p.m.
ORD
-
YUL
Nonstop2h 15m
Air Canada
Deal found 28/2C$ 226
Thu 4/610:35 a.m.
YUL
-
MDW
1 stop5h 00m
Porter Airlines
Mon 8/610:25 a.m.
MDW
-
YUL
1 stop5h 50m
Porter Airlines
Deal found 28/2C$ 226
Fri 29/512:00 p.m.
YYC
-
ORD
Nonstop3h 40m
WestJet
Sun 31/55:30 p.m.
ORD
-
YYC
Nonstop3h 55m
WestJet
Deal found 4/3C$ 227

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 5 March 2026.

Round-trip from

C$ 213

One-way from

C$ 135

Popular in

February

Cheapest in

July

Average price

C$ 339

Good round-trip deal

C$ 286 or less

Good one-way deal

C$ 187 or less
Porter Airlines
  • Porter Airlines
  • 30/4-11/5
  • 2 total stops
  • 10h 15m total
  • Canada to Illinois
Search Deals
WestJet
  • WestJet
  • 30/5
  • Nonstop
  • 3h 40m total
  • Canada to Illinois
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 5 March 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

MontrealChicago

YUL - MDW

YULMDW

Montreal Pierre Elliott Trudeau Intl

Thu 26/3

6:50 a.m.-10:05 a.m.

1 stop4h 15m

Chicago Midway

Mon 30/3

11:00 a.m.-4:30 p.m.

1 stop4h 30m

C$ 231

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Tue 21/7

5:15 p.m.-6:18 p.m.

Nonstop2h 03m

Chicago O'Hare Intl

Wed 22/7

2:56 p.m.-5:56 p.m.

Nonstop2h 00m

C$ 261

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Wed 8/4

10:15 a.m.-11:18 a.m.

Nonstop2h 03m

Chicago O'Hare Intl

Wed 15/4

2:58 p.m.-5:56 p.m.

Nonstop1h 58m

C$ 261

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Thu 26/3

9:15 a.m.-10:05 a.m.

Nonstop1h 50m

Chicago Midway

Sun 29/3

4:15 p.m.-6:57 p.m.

Nonstop1h 42m

C$ 261

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Fri 10/4

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

Nonstop2h 00m

Chicago O'Hare Intl

Sun 12/4

5:57 p.m.-8:44 p.m.

Nonstop1h 47m

C$ 261

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Tue 31/3

4:55 p.m.-6:47 p.m.

Nonstop2h 52m

Chicago O'Hare Intl

Fri 10/4

6:01 p.m.-9:26 p.m.

Nonstop2h 25m

C$ 262

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Wed 8/4

9:25 a.m.-10:15 a.m.

Nonstop1h 50m

Chicago Midway

Sun 12/4

4:05 p.m.-6:47 p.m.

Nonstop1h 42m

C$ 269

TorontoChicago

YTZ - ORD

YTZORD

Toronto Island

Fri 17/4

9:30 a.m.-2:55 p.m.

1 stop6h 25m

Chicago O'Hare Intl

Fri 24/4

12:50 p.m.-7:52 p.m.

1 stop6h 02m

C$ 271

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Sat 18/4

11:20 a.m.-12:10 p.m.

Nonstop1h 50m

Chicago Midway

Sat 25/4

12:55 p.m.-3:37 p.m.

Nonstop1h 42m

C$ 273

TorontoChicago

YTZ - ORD

YTZORD

Toronto Island

Thu 9/4

10:45 a.m.-2:55 p.m.

1 stop5h 10m

Chicago O'Hare Intl

Mon 13/4

8:40 a.m.-3:52 p.m.

1 stop6h 12m

C$ 279

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/3

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, April is the cheapest month in which you can book a flight from Canada to Illinois (average of C$ 109). Flying from Canada to Illinois in December is currently the most expensive (average of C$ 186). 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 5 March 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 27% versus a flight at noon.

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 21 February 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. Saturday afternoons 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 5 March 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
422 reviews
Check prices

Entertainment

7.0

Boarding

8.2

Overall

8.0

Food

7.6

Crew

8.6

Comfort

8.0

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
422 reviews
Porter Airlines
8.0
Very good
422 reviews
Check prices

Entertainment

7.0

Boarding

8.2

Overall

8.0

Food

7.6

Crew

8.6

Comfort

8.0

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
9,400 reviews
Porter Airlines
8.0
Very good
422 reviews
Check prices

Entertainment

7.0

Boarding

8.2

Overall

8.0

Food

7.6

Crew

8.6

Comfort

8.0

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.
WestJet
7.2
Good
3,281 reviews
Porter Airlines
8.0
Very good
422 reviews
Check prices

Entertainment

7.0

Boarding

8.2

Overall

8.0

Food

7.6

Crew

8.6

Comfort

8.0

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
11,390 reviews
Porter Airlines
8.0
Very good
422 reviews
Check prices

Entertainment

7.0

Boarding

8.2

Overall

8.0

Food

7.6

Crew

8.6

Comfort

8.0

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
10,777 reviews
Porter Airlines
8.0
Very good
422 reviews
Check prices

Entertainment

7.0

Boarding

8.2

Overall

8.0

Food

7.6

Crew

8.6

Comfort

8.0

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 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?

    United Airlines, Porter Airlines, and Air Canada can get you from Canada to Illinois in just under 1h 50m. Your travel time can differ by up to 4h 35m. The distance between Canada and Illinois is about 711 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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$ 116), Porter Airlines (C$ 122), and United Airlines (C$ 138).

  • 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, April is the cheapest month in which you can book a flight from Canada to Illinois (average of C$ 109). Flying from Canada to Illinois in December is currently the most expensive (average of C$ 186). 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

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Alternative routes for Canada to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Canada to Illinois

Discover the top 7 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 5 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 112AverageC$ 385FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 121AverageC$ 489FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 147AverageC$ 364FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 166AverageC$ 465FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 169AverageC$ 379FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 175AverageC$ 365FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Alaska AirlinesCheapestC$ 383AverageC$ 494FlexibilityNo cancel feeOn-time75%
Search Alaska 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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