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Cheap flights from Canada to Illinois from C$ 157

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
13 Apr — 20 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 14 March 2026.

Fri 8/510:35 a.m.
YUL
-
MDW
1 stop5h 00m
Porter Airlines
Sun 10/510:25 a.m.
MDW
-
YUL
1 stop6h 50m
Porter Airlines
Deal found 12/3C$ 222
Thu 30/412:00 p.m.
YYC
-
ORD
Nonstop3h 40m
WestJet
Thu 7/55:30 p.m.
ORD
-
YYC
Nonstop3h 55m
WestJet
Deal found 10/3C$ 255
Thu 28/56:30 a.m.
YUL
-
MDW
1 stop4h 10m
Porter Airlines
Sun 31/510:25 a.m.
MDW
-
YUL
1 stop5h 50m
Porter Airlines
Deal found 13/3C$ 257
Fri 1/510:35 a.m.
YUL
-
MDW
1 stop5h 00m
Porter Airlines
Mon 4/53:20 p.m.
MDW
-
YUL
1 stop5h 50m
Porter Airlines
Deal found 11/3C$ 259
Mon 1/64:30 p.m.
YUL
-
ORD
1 stop4h 46m
Air Canada
Sun 7/67:25 a.m.
ORD
-
YUL
1 stop5h 20m
Air Canada
Deal found 10/3C$ 260
Thu 9/49:15 a.m.
YUL
-
ORD
1 stop4h 50m
Air Canada
Sun 12/47:55 a.m.
ORD
-
YUL
1 stop4h 26m
Air Canada
Deal found 9/3C$ 261
Fri 5/64:30 p.m.
YUL
-
ORD
1 stop4h 46m
Air Canada
Mon 8/67:25 a.m.
ORD
-
YUL
1 stop5h 20m
Air Canada
Deal found 12/3C$ 264
Fri 5/66:30 a.m.
YUL
-
MDW
1 stop4h 10m
Porter Airlines
Sun 7/63:20 p.m.
MDW
-
YUL
1 stop5h 50m
Porter Airlines
Deal found 11/3C$ 264
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 10/3C$ 265
Fri 10/49:15 a.m.
YUL
-
ORD
Nonstop2h 38m
Air Canada
Sun 12/412:50 p.m.
ORD
-
YUL
Nonstop2h 15m
Air Canada
Deal found 13/3C$ 267
Mon 30/39:15 a.m.
YTZ
-
MDW
Nonstop1h 50m
Porter Airlines
Wed 1/411:00 a.m.
MDW
-
YTZ
Nonstop1h 42m
Porter Airlines
Deal found 9/3C$ 268
Wed 20/56:30 a.m.
YUL
-
MDW
1 stop4h 10m
Porter Airlines
Tue 26/510:25 a.m.
MDW
-
YUL
1 stop5h 50m
Porter Airlines
Deal found 13/3C$ 268

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 14 March 2026.

Round-trip from

C$ 222

One-way from

C$ 157

Popular in

December

Cheapest in

July

Average price

C$ 361

Good round-trip deal

C$ 257 or less

Good one-way deal

C$ 187 or less
Porter Airlines
  • Porter Airlines
  • 8/5-10/5
  • 2 total stops
  • 11h 50m total
  • Canada to Illinois
Search Deals
WestJet
  • WestJet
  • 10/5
  • Nonstop
  • 3h 40m total
  • Canada to Illinois
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 7 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 14 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 - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Tue 14/4

5:00 p.m.-6:52 p.m.

Nonstop2h 52m

Chicago O'Hare Intl

Tue 21/4

7:13 a.m.-10:40 a.m.

Nonstop2h 27m

C$ 274

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 25/4

5:00 p.m.-6:52 p.m.

Nonstop2h 52m

Chicago O'Hare Intl

Mon 27/4

7:13 a.m.-10:40 a.m.

Nonstop2h 27m

C$ 276

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 9/4

6:35 p.m.-11:43 p.m.

1 stop6h 08m

Chicago O'Hare Intl

Sun 12/4

7:13 a.m.-10:40 a.m.

Nonstop2h 27m

C$ 296

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 24/4

6:35 p.m.-11:43 p.m.

1 stop6h 08m

Chicago O'Hare Intl

Sun 26/4

7:13 a.m.-10:40 a.m.

Nonstop2h 27m

C$ 297

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 23/4

9:00 p.m.-10:03 p.m.

Nonstop2h 03m

Chicago O'Hare Intl

Thu 30/4

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

Nonstop1h 39m

C$ 307

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 10/4

9:15 a.m.-11:43 p.m.

1 stop15h 28m

Chicago O'Hare Intl

Fri 24/4

1:00 p.m.-12:13 a.m.

1 stop10h 13m

C$ 308

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Fri 17/4

1:27 p.m.-12:30 a.m.

1 stop10h 03m

Chicago O'Hare Intl

Tue 21/4

8:42 a.m.-11:32 a.m.

Nonstop3h 50m

C$ 311

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Wed 8/4

6:30 a.m.-6:02 p.m.

1 stop10h 32m

Chicago O'Hare Intl

Wed 15/4

2:09 p.m.-11:00 p.m.

1 stop9h 51m

C$ 317

MontrealChicago

YUL - MDW

YULMDW

Montreal Pierre Elliott Trudeau Intl

Tue 31/3

12:50 p.m.-5:54 p.m.

1 stop6h 04m

Chicago Midway

Fri 3/4

6:34 p.m.-11:13 p.m.

1 stop3h 39m

C$ 323

MontrealChicago

YUL - MDW

YULMDW

Montreal Pierre Elliott Trudeau Intl

Fri 12/6

6:00 a.m.-12:30 p.m.

1 stop7h 30m

Chicago Midway

Sat 13/6

5:59 p.m.-11:10 p.m.

1 stop4h 11m

C$ 323

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/3

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, June is the cheapest month in which you can book a flight from Canada to Illinois (average of C$ 114). Flying from Canada to Illinois in July is currently the most expensive (average of C$ 200). 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 14 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 32% 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 12 March 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.

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 14 March 2026.

The most flights from CA0 to USIL are scheduled on a Wednesday (63 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (44 on average).

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 14 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
423 reviews
Check prices

Overall

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Boarding

8.2

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
423 reviews
Porter Airlines
8.0
Very good
423 reviews
Check prices

Overall

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Boarding

8.2

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
9,423 reviews
Porter Airlines
8.0
Very good
423 reviews
Check prices

Overall

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Boarding

8.2

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
3,295 reviews
Porter Airlines
8.0
Very good
423 reviews
Check prices

Overall

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Boarding

8.2

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
11,463 reviews
Porter Airlines
8.0
Very good
423 reviews
Check prices

Overall

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Boarding

8.2

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
10,800 reviews
Porter Airlines
8.0
Very good
423 reviews
Check prices

Overall

8.0

Crew

8.6

Entertainment

7.0

Food

7.6

Boarding

8.2

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, Delta, and Porter Airlines can get you from Canada to Illinois in just under 1h 55m. Your travel time can differ by up to 8h 37m. The distance between Canada and Illinois is about 716 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, June is the cheapest month in which you can book a flight from Canada to Illinois (average of C$ 114). Flying from Canada to Illinois in July is currently the most expensive (average of C$ 200). 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.
Pearson Intl to Newark flights
Toronto Island to Newark flights
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Edmonton to Las Vegas flights
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Pearson Intl to Dulles Intl flights
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Pearson Intl to Atlanta flights
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Pearson Intl to Reagan-National flights
Pearson Intl to Sky Harbor Intl flights
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Vancouver Intl to O'Hare Intl flights
Vancouver Intl to Sky Harbor Intl flights

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 14 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 112AverageC$ 385FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 120AverageC$ 501FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 147AverageC$ 378FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 167AverageC$ 463FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 169AverageC$ 380FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 175AverageC$ 366FlexibilityNo 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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