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Cheap flights from Canada to Illinois from C$ 156

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 28/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
5 May — 12 May1
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 30 April 2025.

Round-trip from

C$ 244

One-way from

C$ 162

Popular in

December

Cheapest in

March

Average price

C$ 350

Good round-trip deal

C$ 258 or less

Good one-way deal

C$ 151 or less
Porter Airlines
  • Porter Airlines
  • 22/5-26/5
  • Nonstop
  • 3h 31m total
  • Canada to Illinois
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Air Canada
  • Air Canada
  • 17/5
  • Nonstop
  • 3h 27m total
  • Canada to Illinois
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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.
Search Deals

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 30 April 2025.

Thu 22/53:35 p.m.YTZ - MDW
Nonstop1h 49mPorter Airlines
Mon 26/59:40 a.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 29/4C$ 244
Fri 13/67:55 a.m.YTZ - MDW
Nonstop1h 50mAir Transat
Fri 20/65:50 p.m.MDW - YTZ
Nonstop1h 42mAir Transat
Deal found 29/4C$ 248
Fri 23/58:30 a.m.YYC - ORD
Nonstop3h 33mUnited Airlines
Tue 27/57:10 a.m.ORD - YYC
1 stop15h 38mUnited Airlines
Deal found 28/4C$ 257
Sun 1/64:05 p.m.YTZ - MDW
Nonstop1h 49mMultiple Airlines
Mon 2/65:50 p.m.MDW - YTZ
Nonstop1h 42mMultiple Airlines
Deal found 29/4C$ 263
Tue 10/612:15 p.m.YYC - ORD
Nonstop3h 29mWestJet
Tue 24/65:30 p.m.ORD - YYC
Nonstop3h 49mWestJet
Deal found 28/4C$ 264
Fri 30/52:10 p.m.YYZ - ORD
Nonstop1h 55mAir Canada
Sat 31/58:25 p.m.ORD - YYZ
Nonstop1h 42mAir Canada
Deal found 29/4C$ 266
Fri 23/58:10 a.m.YYC - ORD
1 stop7h 41mAir Canada
Tue 27/54:43 p.m.ORD - YYC
1 stop9h 20mAir Canada
Deal found 28/4C$ 266
Wed 13/86:29 a.m.YYC - ORD
Nonstop3h 25mAmerican Airlines
Mon 18/88:34 p.m.ORD - YYC
Nonstop3h 55mAmerican Airlines
Deal found 28/4C$ 302
Mon 12/51:30 p.m.YYC - ORD
1 stop6h 47mMultiple Airlines
Tue 13/52:22 p.m.ORD - YYC
1 stop9h 16mMultiple Airlines
Deal found 28/4C$ 307
Wed 28/56:30 a.m.YYC - ORD
1 stop6h 58mDelta
Thu 29/53:33 p.m.ORD - YYC
2 stops8h 28mDelta
Deal found 28/4C$ 309
Mon 2/67:00 a.m.YVR - ORD
1 stop7h 44mMultiple Airlines
Mon 9/69:56 p.m.ORD - YVR
1 stop26h 29mMultiple Airlines
Deal found 28/4C$ 320
Thu 22/512:30 p.m.YUL - ORD
Nonstop2h 35mAmerican Airlines
Mon 26/58:24 a.m.ORD - YUL
Nonstop2h 20mAmerican Airlines
Deal found 29/4C$ 321

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 30 April 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

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Thu 22/5

3:35 p.m.-4:24 p.m.

Nonstop1h 49m

Chicago Midway

Mon 26/5

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

Nonstop1h 42m

C$ 244

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Fri 13/6

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

Nonstop1h 50m

Chicago Midway

Fri 20/6

5:50 p.m.-8:32 p.m.

Nonstop1h 42m

C$ 248

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Fri 23/5

8:30 a.m.-1:03 p.m.

Nonstop3h 33m

Chicago O'Hare Intl

Tue 27/5

7:10 a.m.-9:48 p.m.

1 stop15h 38m

C$ 257

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Sun 1/6

4:05 p.m.-4:54 p.m.

Nonstop1h 49m

Chicago Midway

Mon 2/6

5:50 p.m.-8:32 p.m.

Nonstop1h 42m

C$ 263

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Tue 10/6

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

Nonstop3h 29m

Chicago O'Hare Intl

Tue 24/6

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

Nonstop3h 49m

C$ 264

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Fri 30/5

2:10 p.m.-3:05 p.m.

Nonstop1h 55m

Chicago O'Hare Intl

Sat 31/5

8:25 p.m.-11:07 p.m.

Nonstop1h 42m

C$ 266

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Fri 23/5

8:10 a.m.-4:51 p.m.

1 stop7h 41m

Chicago O'Hare Intl

Tue 27/5

4:43 p.m.-1:03 a.m.

1 stop9h 20m

C$ 266

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Wed 13/8

6:29 a.m.-10:54 a.m.

Nonstop3h 25m

Chicago O'Hare Intl

Mon 18/8

8:34 p.m.-11:29 p.m.

Nonstop3h 55m

C$ 302

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Mon 12/5

1:30 p.m.-9:17 p.m.

1 stop6h 47m

Chicago O'Hare Intl

Tue 13/5

2:22 p.m.-10:38 p.m.

1 stop9h 16m

C$ 307

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Wed 28/5

6:30 a.m.-2:28 p.m.

1 stop6h 58m

Chicago O'Hare Intl

Thu 29/5

3:33 p.m.-11:01 p.m.

2 stops8h 28m

C$ 309

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/4

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$ 353). 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 30 April 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 30 April 2025.

The most flights from CA0 to USIL are scheduled on a Tuesday (57 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (30 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 30 April 2025.
Read reviews from past customers who have flown Delta, Alaska Airlines and Porter Airlines 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.
Delta
8.0
Very good
7,929 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Alaska Airlines
8.0
Very good
9,961 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Porter Airlines
8.0
Very good
285 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Transat
7.8
Good
385 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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$ 162), American Airlines (C$ 165), and WestJet (C$ 166).

  • 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$ 353). 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 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 147AverageC$ 452FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 154AverageC$ 500FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 170AverageC$ 451FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 178AverageC$ 496FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 243AverageC$ 614FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 260AverageC$ 441FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Alaska AirlinesCheapestC$ 360AverageC$ 500FlexibilityNo cancel feeOn-time75%
Search Alaska 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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