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Cheap flights from Canada to Illinois from C$ 145

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 16/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
26 Jan — 2 Feb1
1 adult

Cheap flight deals from Canada to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Canada (CA0) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 January 2025.

Round-trip from

C$ 219

One-way from

C$ 145

Good round-trip deal

C$ 336 or less

Good one-way deal

C$ 219 or less
WestJet
  • WestJet
  • 13/3-16/3
  • Nonstop
  • 7h 17m total
  • Canada to Illinois
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WestJet
  • WestJet
  • 16/3
  • Nonstop
  • 3h 26m total
  • Canada to Illinois
Search Deals
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 21 January 2025.

Thu 13/311:30 a.m.YYC - ORD
Nonstop3h 26mWestJet
Sun 16/34:45 p.m.ORD - YYC
Nonstop3h 51mWestJet
Deal found 21/1C$ 219
Wed 19/28:30 a.m.YYC - ORD
1 stop9h 04mAir Canada
Wed 26/26:39 p.m.ORD - YYC
1 stop7h 39mAir Canada
Deal found 21/1C$ 256
Wed 12/312:55 a.m.YYC - ORD
1 stop8h 59mMultiple Airlines
Sun 16/34:45 p.m.ORD - YYC
Nonstop3h 51mMultiple Airlines
Deal found 21/1C$ 273
Mon 17/37:20 p.m.YYC - ORD
1 stop13h 13mUnited Airlines
Tue 18/31:05 p.m.ORD - YYC
1 stop9h 36mUnited Airlines
Deal found 20/1C$ 276
Fri 7/38:00 a.m.YYC - ORD
1 stop9h 23mDelta
Tue 11/312:15 p.m.ORD - YYC
2 stops12h 01mDelta
Deal found 21/1C$ 314
Thu 13/28:10 a.m.YYZ - ORD
1 stop5h 49mAir Canada
Sun 16/22:05 p.m.ORD - YYZ
Nonstop1h 41mAir Canada
Deal found 21/1C$ 338
Thu 13/211:20 a.m.YTZ - MDW
Nonstop1h 50mPorter Airlines
Mon 17/21:05 p.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 21/1C$ 340
Sat 1/36:20 p.m.YYZ - ORD
Nonstop2h 00mAmerican Airlines
Wed 5/38:11 a.m.ORD - YYZ
Nonstop1h 40mAmerican Airlines
Deal found 20/1C$ 343
Wed 16/412:25 p.m.YTZ - ORD
1 stop6h 56mAir Canada
Sun 20/41:55 p.m.ORD - YTZ
1 stop6h 40mAir Canada
Deal found 21/1C$ 345
Thu 13/211:20 a.m.YTZ - MDW
Nonstop1h 50mAir Transat
Wed 19/21:05 p.m.MDW - YTZ
Nonstop1h 42mAir Transat
Deal found 21/1C$ 347
Wed 26/211:20 a.m.YTZ - MDW
1 stop8h 03mMultiple Airlines
Sun 2/311:15 a.m.MDW - YTZ
Nonstop1h 42mMultiple Airlines
Deal found 21/1C$ 354
Wed 12/26:40 p.m.YYZ - ORD
Nonstop1h 57mMultiple Airlines
Sat 22/29:50 a.m.ORD - YYZ
Nonstop1h 35mMultiple Airlines
Deal found 20/1C$ 355

Find flights from Canada to Illinois within your budget

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 21 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Thu 13/3

11:30 a.m.-3:56 p.m.

Nonstop3h 26m

Chicago O'Hare Intl

Sun 16/3

4:45 p.m.-7:36 p.m.

Nonstop3h 51m

C$ 219

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Wed 19/2

8:30 a.m.-6:34 p.m.

1 stop9h 04m

Chicago O'Hare Intl

Wed 26/2

6:39 p.m.-1:18 a.m.

1 stop7h 39m

C$ 256

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Wed 12/3

12:55 a.m.-10:54 a.m.

1 stop8h 59m

Chicago O'Hare Intl

Sun 16/3

4:45 p.m.-7:36 p.m.

Nonstop3h 51m

C$ 273

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Mon 17/3

7:20 p.m.-9:33 a.m.

1 stop13h 13m

Chicago O'Hare Intl

Tue 18/3

1:05 p.m.-9:41 p.m.

1 stop9h 36m

C$ 276

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Fri 7/3

8:00 a.m.-6:23 p.m.

1 stop9h 23m

Chicago O'Hare Intl

Tue 11/3

12:15 p.m.-8:42 p.m.

1 stop9h 27m

C$ 314

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 13/2

8:10 a.m.-12:59 p.m.

1 stop5h 49m

Chicago O'Hare Intl

Sun 16/2

2:05 p.m.-4:46 p.m.

Nonstop1h 41m

C$ 338

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Thu 13/2

11:20 a.m.-12:10 p.m.

Nonstop1h 50m

Chicago Midway

Mon 17/2

1:05 p.m.-3:47 p.m.

Nonstop1h 42m

C$ 340

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Sat 1/3

6:20 p.m.-7:20 p.m.

Nonstop2h 00m

Chicago O'Hare Intl

Wed 5/3

8:11 a.m.-10:51 a.m.

Nonstop1h 40m

C$ 343

TorontoChicago

YTZ - ORD

YTZORD

Toronto Island

Wed 16/4

12:25 p.m.-6:21 p.m.

1 stop6h 56m

Chicago O'Hare Intl

Sun 20/4

1:55 p.m.-9:35 p.m.

1 stop6h 40m

C$ 345

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Thu 13/2

11:20 a.m.-12:10 p.m.

Nonstop1h 50m

Chicago Midway

Wed 19/2

1:05 p.m.-3:47 p.m.

Nonstop1h 42m

C$ 347

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/1

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.

Travel insights for flights from Canada to Illinois

Get recent, data-driven insights about flights from Canada to Illinois including ideal travel times, pricing trends, and more.

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$ 355). 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 21 January 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 21 January 2025.

The most flights from CA0 to USIL are scheduled on a Monday (52 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 21 January 2025.
Read reviews from past customers who have flown Air Canada, WestJet and United 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
8,521 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 10

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

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 10

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

Alaska Airlines
8.0
Very good
9,706 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 10

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

Porter Airlines
7.9
Good
277 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 10

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

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 10

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

Air Transat
7.8
Good
381 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 10

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 WestJet (C$ 145), United Airlines (C$ 171), and Air Canada (C$ 173).

  • 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$ 355). 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 8 airlines flying from Canada to Illinois

Discover the top 8 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 21 January 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 204AverageC$ 503FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 237AverageC$ 616FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 270AverageC$ 578FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 279AverageC$ 458FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
DeltaCheapestC$ 318AverageC$ 536FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 339AverageC$ 655FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapestC$ 374AverageC$ 625FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
WestJet EncoreCheapestC$ 580AverageC$ 1,024FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore 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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