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Cheap flights from Canada to Illinois from C$ 148

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
17 Jun — 24 Jun1
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 12 June 2025.

Round-trip from

C$ 205

One-way from

C$ 148

Popular in

December

Cheapest in

April

Average price

C$ 346

Good round-trip deal

C$ 228 or less

Good one-way deal

C$ 165 or less
WestJet
  • WestJet
  • 31/7-4/8
  • Nonstop
  • 7h 18m total
  • Canada to Illinois
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Porter Airlines
  • Porter Airlines
  • 21/7
  • Nonstop
  • 1h 50m total
  • Canada to Illinois
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 40 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 June 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 12 June 2025.

Thu 31/712:15 p.m.YYC - ORD
Nonstop3h 29mWestJet
Mon 4/85:30 p.m.ORD - YYC
Nonstop3h 49mWestJet
Deal found 11/6C$ 205
Thu 26/67:55 a.m.YTZ - MDW
Nonstop1h 50mPorter Airlines
Sun 29/69:40 a.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 12/6C$ 220
Wed 10/98:15 a.m.YYZ - ORD
Nonstop1h 53mAir Canada
Fri 12/96:20 p.m.ORD - YYZ
Nonstop1h 42mAir Canada
Deal found 12/6C$ 226
Thu 4/92:30 p.m.YYZ - ORD
1 stop6h 18mUnited Airlines
Wed 10/97:15 a.m.ORD - YYZ
1 stop5h 32mUnited Airlines
Deal found 10/6C$ 235
Fri 13/66:29 a.m.YYC - ORD
Nonstop3h 25mAmerican Airlines
Tue 17/61:28 p.m.ORD - YYC
1 stop9h 29mAmerican Airlines
Deal found 12/6C$ 238
Sat 30/87:55 a.m.YTZ - MDW
Nonstop1h 50mAir Transat
Fri 12/99:15 a.m.MDW - YTZ
Nonstop1h 42mAir Transat
Deal found 11/6C$ 254
Tue 30/93:45 p.m.YYZ - ORD
1 stop5h 42mAmerican Airlines
Thu 2/109:48 a.m.ORD - YYZ
1 stop6h 27mAmerican Airlines
Deal found 10/6C$ 261
Tue 17/612:38 p.m.YYC - ORD
Nonstop3h 32mUnited Airlines
Tue 24/65:02 a.m.ORD - YYC
1 stop14h 19mUnited Airlines
Deal found 11/6C$ 261
Sat 6/91:10 a.m.YYC - ORD
1 stop7h 41mAir Canada
Wed 17/96:20 p.m.ORD - YYC
1 stop7h 52mAir Canada
Deal found 11/6C$ 275
Mon 18/87:55 a.m.YTZ - MDW
Nonstop1h 50mMultiple Airlines
Tue 19/85:20 p.m.MDW - YTZ
Nonstop1h 42mMultiple Airlines
Deal found 11/6C$ 280
Sat 4/1010:25 a.m.YTZ - ORD
1 stop5h 30mAir Canada
Wed 15/108:40 a.m.ORD - YTZ
1 stop5h 05mAir Canada
Deal found 12/6C$ 283
Thu 3/77:00 a.m.YYZ - ORD
Nonstop1h 59mLufthansa
Mon 7/79:14 p.m.ORD - YYZ
Nonstop1h 44mLufthansa
Deal found 11/6C$ 286

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 12 June 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

Thu 31/7

12:15 p.m.-4:44 p.m.

Nonstop3h 29m

Chicago O'Hare Intl

Mon 4/8

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

Nonstop3h 49m

C$ 205

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Thu 26/6

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

Nonstop1h 50m

Chicago Midway

Sun 29/6

9:40 a.m.-12:22 p.m.

Nonstop1h 42m

C$ 220

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Wed 10/9

8:15 a.m.-9:08 a.m.

Nonstop1h 53m

Chicago O'Hare Intl

Fri 12/9

6:20 p.m.-9:02 p.m.

Nonstop1h 42m

C$ 226

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 4/9

2:30 p.m.-7:48 p.m.

1 stop6h 18m

Chicago O'Hare Intl

Wed 10/9

7:15 a.m.-1:47 p.m.

1 stop5h 32m

C$ 235

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Tue 30/9

3:45 p.m.-8:27 p.m.

1 stop5h 42m

Chicago O'Hare Intl

Thu 2/10

9:48 a.m.-5:15 p.m.

1 stop6h 27m

C$ 261

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Thu 26/6

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

Nonstop1h 50m

Chicago Midway

Mon 30/6

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

Nonstop1h 40m

C$ 261

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Sat 13/9

6:45 a.m.-9:24 p.m.

1 stop13h 39m

Chicago O'Hare Intl

Sat 20/9

8:30 p.m.-11:19 p.m.

Nonstop3h 49m

C$ 273

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Sat 6/9

1:10 a.m.-9:51 a.m.

1 stop7h 41m

Chicago O'Hare Intl

Wed 17/9

6:20 p.m.-1:12 a.m.

1 stop7h 52m

C$ 275

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Mon 18/8

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

Nonstop1h 50m

Chicago Midway

Tue 19/8

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

Nonstop1h 42m

C$ 280

TorontoChicago

YTZ - ORD

YTZORD

Toronto Island

Sat 4/10

10:25 a.m.-2:55 p.m.

1 stop5h 30m

Chicago O'Hare Intl

Wed 15/10

10:40 a.m.-4:45 p.m.

1 stop5h 05m

C$ 283

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

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 12 June 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 12 June 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 (33 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 mm per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

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 12 June 2025.
Read reviews from past customers who have flown Alaska Airlines, Porter Airlines and Delta from Canada to Illinois. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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
288 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
KLM
7.8
Good
1,358 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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
396 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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 Porter Airlines (C$ 148), United Airlines (C$ 152), and Air Canada (C$ 153).

  • 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 12 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 148AverageC$ 484FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 169AverageC$ 468FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 176AverageC$ 487FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 197AverageC$ 463FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Porter AirlinesCheapestC$ 232AverageC$ 422FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 240AverageC$ 575FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapestC$ 355AverageC$ 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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