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Cheap flights from Canada to Illinois from C$ 143

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 15/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
8 Jul — 15 Jul1
1 adult

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 3 July 2025.

Round-trip from

C$ 195

One-way from

C$ 143

Popular in

December

Cheapest in

April

Average price

C$ 343

Good round-trip deal

C$ 228 or less

Good one-way deal

C$ 154 or less
WestJet
  • WestJet
  • 8/9-11/9
  • Nonstop
  • 7h 17m total
  • Canada to Illinois
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Air Canada
  • Air Canada
  • 16/8
  • 1 total stop
  • 4h 37m total
  • Canada to Illinois
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Highest demand for flights based on searches. 7% potential increase in price (C$ 40 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 8 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Canada to Illinois.
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Price to beat on a one-way flight from Canada to Illinois.
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Find flight deals from Canada to Illinois

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 3 July 2025.

Mon 8/912:15 p.m.YYC - ORD
Nonstop3h 28mWestJet
Thu 11/95:30 p.m.ORD - YYC
Nonstop3h 49mWestJet
Deal found 2/7C$ 195
Wed 10/911:44 a.m.YYZ - ORD
Nonstop1h 55mAmerican Airlines
Fri 12/99:39 a.m.ORD - YYZ
Nonstop1h 53mAmerican Airlines
Deal found 3/7C$ 219
Fri 11/77:55 a.m.YTZ - MDW
Nonstop1h 50mPorter Airlines
Mon 14/79:40 a.m.MDW - YTZ
Nonstop1h 40mPorter Airlines
Deal found 2/7C$ 221
Fri 15/86:35 p.m.YYZ - ORD
Nonstop1h 54mAir Canada
Fri 22/88:25 p.m.ORD - YYZ
Nonstop1h 45mAir Canada
Deal found 2/7C$ 222
Fri 5/97:30 a.m.YTZ - MDW
Nonstop1h 49mMultiple Airlines
Mon 8/99:15 a.m.MDW - YTZ
Nonstop1h 42mMultiple Airlines
Deal found 1/7C$ 224
Thu 10/77:00 a.m.YYZ - ORD
Nonstop1h 59mUnited Airlines
Mon 14/79:14 p.m.ORD - YYZ
Nonstop1h 44mUnited Airlines
Deal found 1/7C$ 226
Wed 30/77:55 a.m.YTZ - MDW
Nonstop1h 50mAir Transat
Wed 6/89:40 a.m.MDW - YTZ
Nonstop1h 40mAir Transat
Deal found 1/7C$ 228
Sat 16/83:25 p.m.YTZ - ORD
1 stop5h 51mAir Canada
Sat 23/83:35 p.m.ORD - YTZ
1 stop4h 56mAir Canada
Deal found 2/7C$ 230
Wed 20/81:05 a.m.YYC - ORD
1 stop7h 41mMultiple Airlines
Wed 27/85:30 p.m.ORD - YYC
Nonstop3h 49mMultiple Airlines
Deal found 2/7C$ 255
Wed 20/81:05 a.m.YYC - ORD
1 stop7h 41mAir Canada
Wed 27/83:50 p.m.ORD - YYC
1 stop9h 20mAir Canada
Deal found 2/7C$ 263
Mon 18/81:10 p.m.YUL - MDW
1 stop4h 14mPorter Airlines
Mon 25/85:20 p.m.MDW - YUL
1 stop3h 55mPorter Airlines
Deal found 2/7C$ 292
Sat 4/1012:14 p.m.YYZ - MDW
1 stop7h 21mDelta
Wed 15/102:00 p.m.MDW - YYZ
1 stop7h 55mDelta
Deal found 1/7C$ 292

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 3 July 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

Mon 8/9

12:15 p.m.-4:43 p.m.

Nonstop3h 28m

Chicago O'Hare Intl

Thu 11/9

5:30 p.m.-8:19 p.m.

Nonstop3h 49m

C$ 195

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Wed 10/9

11:44 a.m.-12:39 p.m.

Nonstop1h 55m

Chicago O'Hare Intl

Fri 12/9

9:39 a.m.-12:32 p.m.

Nonstop1h 53m

C$ 219

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Tue 15/7

7:55 a.m.-8:45 a.m.

Nonstop1h 50m

Chicago Midway

Tue 15/7

5:20 p.m.-8:02 p.m.

Nonstop1h 42m

C$ 221

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Fri 15/8

6:35 p.m.-7:29 p.m.

Nonstop1h 54m

Chicago O'Hare Intl

Fri 22/8

8:25 p.m.-11:10 p.m.

Nonstop1h 45m

C$ 222

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Fri 5/9

7:30 a.m.-8:19 a.m.

Nonstop1h 49m

Chicago Midway

Mon 8/9

9:15 a.m.-11:57 a.m.

Nonstop1h 42m

C$ 224

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Wed 30/7

7:55 a.m.-8:45 a.m.

Nonstop1h 50m

Chicago Midway

Wed 6/8

9:40 a.m.-12:20 p.m.

Nonstop1h 40m

C$ 228

TorontoChicago

YTZ - ORD

YTZORD

Toronto Island

Sat 16/8

3:25 p.m.-8:16 p.m.

1 stop5h 51m

Chicago O'Hare Intl

Sat 23/8

3:35 p.m.-9:31 p.m.

1 stop4h 56m

C$ 230

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 14/8

7:00 a.m.-7:59 a.m.

Nonstop1h 59m

Chicago O'Hare Intl

Tue 19/8

10:43 a.m.-5:19 p.m.

1 stop5h 36m

C$ 237

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Wed 20/8

1:05 a.m.-9:46 a.m.

1 stop7h 41m

Chicago O'Hare Intl

Wed 27/8

5:30 p.m.-8:19 p.m.

Nonstop3h 49m

C$ 255

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Wed 20/8

1:05 a.m.-9:46 a.m.

1 stop7h 41m

Chicago O'Hare Intl

Wed 27/8

3:50 p.m.-12:10 a.m.

1 stop9h 20m

C$ 263

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

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, January is the cheapest month in which you can book a flight from Canada to Illinois (average of C$ 261). Flying from Canada to Illinois in March is currently the most expensive (average of C$ 352). 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 3 July 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Canada to Illinois as you normally would.

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 3 July 2025.

The most flights from CA0 to USIL are scheduled on a Wednesday (60 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (28 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 3 July 2025.
Check out reviews from past customers who have flown with Alaska Airlines,Porter Airlines, andDelta 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.
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Porter Airlines
8.0
Very good
298 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Air Transat
7.8
Good
407 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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 Air Canada (C$ 143), American Airlines (C$ 144), and Porter Airlines (C$ 144).

  • 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$ 261). Flying from Canada to Illinois in March is currently the most expensive (average of C$ 352). 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 3 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 147AverageC$ 481FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 168AverageC$ 476FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 175AverageC$ 483FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 183AverageC$ 481FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Porter AirlinesCheapestC$ 230AverageC$ 415FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 239AverageC$ 570FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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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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