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Cheap flights from Canada to Illinois from C$ 139

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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
25 Feb — 4 Mar1
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 20 February 2025.

Round-trip from

C$ 226

One-way from

C$ 139

Popular in

December

Cheapest in

April

Average price

C$ 405

Good round-trip deal

C$ 261 or less

Good one-way deal

C$ 175 or less
WestJet
  • WestJet
  • 27/2-2/3
  • Nonstop
  • 7h 17m total
  • Canada to Illinois
Search Deals
WestJet
  • WestJet
  • 1/5
  • Nonstop
  • 3h 29m total
  • Canada to Illinois
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 26 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 February 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

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 20 February 2025.

Thu 27/211:30 a.m.YYC - ORD
Nonstop3h 26mWestJet
Sun 2/34:45 p.m.ORD - YYC
Nonstop3h 51mWestJet
Deal found 19/2C$ 226
Mon 7/48:30 a.m.YYC - ORD
1 stop9h 24mAir Canada
Thu 10/410:53 a.m.ORD - YYC
1 stop10h 30mAir Canada
Deal found 19/2C$ 249
Thu 20/32:01 p.m.YYC - ORD
1 stop7h 44mUnited Airlines
Thu 27/35:00 a.m.ORD - YYC
1 stop10h 21mUnited Airlines
Deal found 20/2C$ 268
Sat 3/57:00 a.m.YVR - ORD
1 stop7h 44mWestJet
Mon 26/55:30 p.m.ORD - YVR
1 stop7h 05mWestJet
Deal found 18/2C$ 281
Mon 28/47:00 a.m.YVR - ORD
1 stop7h 44mMultiple Airlines
Tue 29/48:00 a.m.ORD - YVR
1 stop16h 25mMultiple Airlines
Deal found 19/2C$ 283
Sat 24/54:00 p.m.YYZ - ORD
1 stop5h 12mAir Canada
Sat 7/610:40 a.m.ORD - YYZ
1 stop6h 18mAir Canada
Deal found 20/2C$ 290
Thu 20/33:50 p.m.YTZ - MDW
Nonstop1h 50mPorter Airlines
Mon 24/35:35 p.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 19/2C$ 290
Sat 24/510:25 a.m.YTZ - ORD
1 stop5h 30mAir Canada
Sat 7/610:40 a.m.ORD - YTZ
1 stop6h 10mAir Canada
Deal found 20/2C$ 290
Sun 2/311:30 a.m.YYC - ORD
Nonstop3h 26mMultiple Airlines
Sun 9/35:00 a.m.ORD - YYC
1 stop10h 21mMultiple Airlines
Deal found 19/2C$ 298
Tue 13/57:15 a.m.YYC - ORD
1 stop9h 46mDelta
Sat 17/512:17 p.m.ORD - YYC
2 stops11h 50mDelta
Deal found 20/2C$ 312
Thu 13/39:00 p.m.YYZ - ORD
Nonstop2h 06mMultiple Airlines
Thu 10/47:10 a.m.ORD - YYZ
Nonstop1h 48mMultiple Airlines
Deal found 19/2C$ 315
Thu 20/33:50 p.m.YTZ - MDW
Nonstop1h 50mAir Transat
Thu 27/35:35 p.m.MDW - YTZ
Nonstop1h 42mAir Transat
Deal found 18/2C$ 317

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 20 February 2025.

Fly from

Canada

Fly to

Illinois

Route

Depart

Return

Price

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Mon 14/4

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

Nonstop3h 26m

Chicago O'Hare Intl

Sun 20/4

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

Nonstop3h 51m

C$ 226

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Mon 7/4

8:30 a.m.-6:54 p.m.

1 stop9h 24m

Chicago O'Hare Intl

Thu 10/4

10:53 a.m.-8:23 p.m.

1 stop10h 30m

C$ 249

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Thu 20/3

2:01 p.m.-10:45 p.m.

1 stop7h 44m

Chicago O'Hare Intl

Thu 27/3

5:00 a.m.-2:21 p.m.

1 stop10h 21m

C$ 268

VancouverChicago

YVR - ORD

YVRORD

Vancouver Intl

Sat 3/5

7:00 a.m.-4:44 p.m.

1 stop7h 44m

Chicago O'Hare Intl

Mon 26/5

5:30 p.m.-10:35 p.m.

1 stop7h 05m

C$ 281

VancouverChicago

YVR - ORD

YVRORD

Vancouver Intl

Mon 28/4

7:00 a.m.-4:44 p.m.

1 stop7h 44m

Chicago O'Hare Intl

Tue 29/4

8:00 a.m.-10:25 p.m.

1 stop16h 25m

C$ 283

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Thu 20/3

3:50 p.m.-4:40 p.m.

Nonstop1h 50m

Chicago Midway

Mon 24/3

5:35 p.m.-8:17 p.m.

Nonstop1h 42m

C$ 290

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Sat 24/5

4:00 p.m.-8:12 p.m.

1 stop5h 12m

Chicago O'Hare Intl

Sat 7/6

10:40 a.m.-5:58 p.m.

1 stop6h 18m

C$ 290

TorontoChicago

YTZ - ORD

YTZORD

Toronto Island

Sat 24/5

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

1 stop5h 30m

Chicago O'Hare Intl

Sat 7/6

10:40 a.m.-5:50 p.m.

1 stop6h 10m

C$ 290

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Sun 2/3

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

Nonstop3h 26m

Chicago O'Hare Intl

Sun 9/3

5:00 a.m.-2:21 p.m.

1 stop10h 21m

C$ 298

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Tue 13/5

7:15 a.m.-6:01 p.m.

1 stop9h 46m

Chicago O'Hare Intl

Sat 17/5

12:17 p.m.-11:07 p.m.

2 stops11h 50m

C$ 312

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/2

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 20 February 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 20 February 2025.

The most flights from CA0 to USIL are scheduled on a Thursday (53 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (38 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 20 February 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta 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.
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,692 reviews
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
8,220 reviews
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Porter Airlines
7.9
Good
276 reviews
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

KLM
7.8
Good
1,333 reviews
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Air Transat
7.8
Good
380 reviews
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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$ 139), Air Canada (C$ 156), and United Airlines (C$ 172).

  • 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

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 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 20 February 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 189AverageC$ 586FlexibilityNo cancel feeOn-time60%
Search WestJet flights
American AirlinesCheapestC$ 201AverageC$ 483FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 239AverageC$ 565FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 249AverageC$ 641FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 267AverageC$ 453FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
DeltaCheapestC$ 291AverageC$ 539FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Alaska AirlinesCheapestC$ 369AverageC$ 617FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
WestJet EncoreCheapestC$ 572AverageC$ 1,011FlexibilityNo 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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