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Cheap flights from Canada to Illinois from C$ 149

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 13/11. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
16 Nov — 23 Nov1
1 adult
1 adult, Economy

Find 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 17 October 2025.

Sat 1/118:30 a.m.YVR - ORD
Nonstop4h 11mAir Canada
Sat 8/113:40 p.m.ORD - YVR
Nonstop4h 35mAir Canada
Deal found 16/10C$ 215
Sat 25/101:29 p.m.YYC - ORD
Nonstop3h 25mAmerican Airlines
Tue 28/109:49 a.m.ORD - YYC
Nonstop3h 45mAmerican Airlines
Deal found 14/10C$ 218
Sat 25/1012:38 p.m.YYC - ORD
Nonstop3h 32mMultiple Airlines
Tue 28/102:00 p.m.ORD - YYC
1 stop7h 39mMultiple Airlines
Deal found 14/10C$ 226
Fri 24/101:10 a.m.YYC - ORD
1 stop7h 41mAir Canada
Tue 28/102:00 p.m.ORD - YYC
1 stop7h 39mAir Canada
Deal found 14/10C$ 233
Mon 24/114:30 p.m.YYZ - ORD
1 stop8h 07mAmerican Airlines
Thu 27/118:11 a.m.ORD - YYZ
Nonstop1h 41mAmerican Airlines
Deal found 16/10C$ 243
Sun 2/115:15 a.m.YYC - ORD
1 stop16h 44mMultiple Airlines
Wed 5/112:00 p.m.ORD - YYC
1 stop7h 39mMultiple Airlines
Deal found 14/10C$ 243
Thu 11/128:30 a.m.YVR - ORD
Nonstop4h 11mAir Canada
Sat 13/123:40 p.m.ORD - YVR
Nonstop4h 35mAir Canada
Deal found 15/10C$ 243
Fri 21/116:00 a.m.YYZ - ORD
1 stop5h 42mAmerican Airlines
Tue 25/118:11 a.m.ORD - YYZ
Nonstop1h 41mAmerican Airlines
Deal found 15/10C$ 244
Wed 12/114:30 p.m.YYZ - ORD
1 stop8h 07mAmerican Airlines
Thu 13/117:10 a.m.ORD - YYZ
1 stop7h 47mAmerican Airlines
Deal found 16/10C$ 256
Wed 12/117:00 a.m.YYZ - ORD
1 stop6h 18mAmerican Airlines
Fri 14/115:00 a.m.ORD - YYZ
1 stop5h 14mAmerican Airlines
Deal found 15/10C$ 258
Sat 1/1110:30 a.m.YVR - ORD
Nonstop4h 14mUnited Airlines
Tue 4/117:10 a.m.ORD - YVR
1 stop8h 48mUnited Airlines
Deal found 16/10C$ 258
Sat 25/101:45 p.m.YVR - ORD
Nonstop4h 19mLufthansa
Fri 31/101:10 p.m.ORD - YVR
Nonstop4h 40mLufthansa
Deal found 15/10C$ 263

Cheap flight deals from Canada to Illinois

Keep the following information in mind while searching for Canada to Illinois flight deals. Data was last updated 17 October 2025.

Round-trip from

C$ 215

One-way from

C$ 149

Popular in

December

Cheapest in

July

Average price

C$ 406

Good round-trip deal

C$ 296 or less

Good one-way deal

C$ 149 or less
Air Canada
  • Air Canada
  • 1/11-8/11
  • Nonstop
  • 8h 46m total
  • Canada to Illinois
Search Deals
United Airlines
  • United Airlines
  • 13/11
  • Nonstop
  • 4h 14m total
  • Canada to Illinois
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 17 October 2025.
Use the filters below to find and compare flights from Canada to Illinois that are best for you.

Fly from

Canada

Fly to

Illinois

Route

Depart

Return

Price

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Sun 2/11

5:15 a.m.-10:59 p.m.

1 stop16h 44m

Chicago O'Hare Intl

Wed 5/11

2:00 p.m.-8:39 p.m.

1 stop7h 39m

C$ 243

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Thu 26/3

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

Nonstop1h 50m

Chicago Midway

Tue 31/3

11:00 a.m.-1:42 p.m.

Nonstop1h 42m

C$ 246

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Thu 26/3

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

Nonstop1h 50m

Chicago Midway

Tue 31/3

11:00 a.m.-1:42 p.m.

Nonstop1h 42m

C$ 246

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Wed 8/4

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

Nonstop1h 50m

Chicago Midway

Sat 11/4

12:45 p.m.-3:27 p.m.

Nonstop1h 42m

C$ 249

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 20/11

10:57 a.m.-4:53 p.m.

1 stop6h 56m

Chicago O'Hare Intl

Sun 23/11

8:20 a.m.-3:57 p.m.

1 stop6h 37m

C$ 256

VancouverChicago

YVR - ORD

YVRORD

Vancouver Intl

Tue 28/10

10:30 a.m.-4:44 p.m.

Nonstop4h 14m

Chicago O'Hare Intl

Fri 31/10

7:10 a.m.-1:39 p.m.

1 stop8h 29m

C$ 258

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 15/1

2:13 p.m.-11:39 p.m.

1 stop10h 26m

Chicago O'Hare Intl

Sun 18/1

8:52 a.m.-3:16 p.m.

1 stop5h 24m

C$ 270

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 4/4

6:00 a.m.-10:47 a.m.

1 stop5h 47m

Chicago O'Hare Intl

Wed 8/4

11:15 a.m.-5:42 p.m.

1 stop5h 27m

C$ 270

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 9/1

3:00 p.m.-9:06 p.m.

1 stop7h 06m

Chicago O'Hare Intl

Sun 11/1

8:52 a.m.-3:16 p.m.

1 stop5h 24m

C$ 270

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Sat 11/4

11:00 a.m.-11:50 a.m.

Nonstop1h 50m

Chicago Midway

Tue 14/4

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

Nonstop1h 42m

C$ 272

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/10

Showing 1-10 of 60 results
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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$ 117). Flying from Canada to Illinois in December is currently the most expensive (average of C$ 219). 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 17 October 2025.

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 26% versus a flight in the morning.

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 16 December 2024.

Travelers seeking maximum savings on their Canada to Illinois flight should consider departing on Friday afternoons when fares are most often at their lowest. Sunday at noon 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 17 October 2025.

The most flights from CA0 to USIL are scheduled on a Thursday (60 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (47 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 17 October 2025.
Check out reviews from past customers who have flown with Porter Airlines,United Airlines, andAmerican Airlines 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
381 reviews
Check prices

Boarding

8.2

Entertainment

7.0

Crew

8.6

Food

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
8.0
Very good
381 reviews
Porter Airlines
8.0
Very good
381 reviews
Check prices

Boarding

8.2

Entertainment

7.0

Crew

8.6

Food

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
United Airlines
7.4
Good
8,982 reviews
Porter Airlines
8.0
Very good
381 reviews
Check prices

Boarding

8.2

Entertainment

7.0

Crew

8.6

Food

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
American Airlines
7.2
Good
11,040 reviews
Porter Airlines
8.0
Very good
381 reviews
Check prices

Boarding

8.2

Entertainment

7.0

Crew

8.6

Food

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
WestJet
7.2
Good
3,127 reviews
Porter Airlines
8.0
Very good
381 reviews
Check prices

Boarding

8.2

Entertainment

7.0

Crew

8.6

Food

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,307 reviews
Porter Airlines
8.0
Very good
381 reviews
Check prices

Boarding

8.2

Entertainment

7.0

Crew

8.6

Food

7.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

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?

    Air Transat, Porter Airlines, and American Airlines can get you from Canada to Illinois in just under 1h 50m. Your travel time can differ by up to 5h 06m. 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 United Airlines (C$ 149), Air Canada (C$ 149), and Delta (C$ 180).

  • 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$ 117). Flying from Canada to Illinois in December is currently the most expensive (average of C$ 219). 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 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 17 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 152AverageC$ 491FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 179AverageC$ 457FlexibilityNo cancel feeOn-time60%
Search WestJet flights
American AirlinesCheapestC$ 180AverageC$ 450FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapestC$ 187AverageC$ 484FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Porter AirlinesCheapestC$ 199AverageC$ 377FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 210AverageC$ 528FlexibilityNo cancel feeOn-time69%
Search United 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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