Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Canada to Illinois from C$ 131

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 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
1 Apr — 8 Apr1
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 27 March 2025.

Round-trip from

C$ 188

One-way from

C$ 131

Popular in

December

Cheapest in

April

Average price

C$ 397

Good round-trip deal

C$ 251 or less

Good one-way deal

C$ 169 or less
WestJet
  • WestJet
  • 3/5-9/5
  • Nonstop
  • 7h 18m total
  • Canada to Illinois
Search Deals
WestJet
  • WestJet
  • 2/6
  • Nonstop
  • 3h 29m total
  • Canada to Illinois
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 24 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 March 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 27 March 2025.

Sat 3/512:15 p.m.YYC - ORD
Nonstop3h 29mWestJet
Fri 9/55:30 p.m.ORD - YYC
Nonstop3h 49mWestJet
Deal found 26/3C$ 188
Sat 3/512:43 p.m.YYC - ORD
Nonstop3h 27mLufthansa
Fri 9/54:00 p.m.ORD - YYC
1 stop8h 08mLufthansa
Deal found 26/3C$ 251
Sun 11/51:30 p.m.YYC - ORD
1 stop6h 47mUnited Airlines
Tue 13/52:35 p.m.ORD - YYC
1 stop8h 13mUnited Airlines
Deal found 26/3C$ 253
Sat 3/56:15 a.m.YYC - ORD
1 stop11h 07mAir Canada
Fri 9/54:00 p.m.ORD - YYC
1 stop8h 08mAir Canada
Deal found 26/3C$ 267
Sat 19/411:10 a.m.YTZ - MDW
Nonstop1h 50mPorter Airlines
Sat 26/412:55 p.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 26/3C$ 280
Fri 30/58:30 a.m.YYC - ORD
Nonstop3h 33mMultiple Airlines
Wed 4/66:30 p.m.ORD - YYC
1 stop7h 33mMultiple Airlines
Deal found 27/3C$ 297
Thu 1/53:59 p.m.YYZ - ORD
1 stop5h 46mDelta
Thu 8/56:00 a.m.ORD - YYZ
1 stop9h 10mDelta
Deal found 26/3C$ 307
Tue 6/510:20 a.m.YTZ - ORD
2 stops10h 52mAir Canada
Tue 13/58:40 a.m.ORD - YTZ
1 stop5h 10mAir Canada
Deal found 27/3C$ 307
Wed 23/410:00 a.m.YYZ - ORD
1 stop5h 55mAir Canada
Wed 30/47:20 a.m.ORD - YYZ
1 stop5h 19mAir Canada
Deal found 26/3C$ 313
Mon 14/46:45 a.m.YYC - ORD
2 stops13h 05mDelta
Wed 7/51:40 p.m.ORD - YYC
1 stop10h 21mDelta
Deal found 26/3C$ 313
Thu 12/66:29 a.m.YYC - ORD
Nonstop3h 25mAmerican Airlines
Sun 15/68:25 p.m.ORD - YYC
Nonstop4h 00mAmerican Airlines
Deal found 26/3C$ 314
Thu 24/43:50 p.m.YTZ - MDW
Nonstop1h 50mAir Transat
Sun 27/45:35 p.m.MDW - YTZ
Nonstop1h 42mAir Transat
Deal found 26/3C$ 318

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 27 March 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

Sat 3/5

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

Nonstop3h 29m

Chicago O'Hare Intl

Fri 9/5

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

Nonstop3h 49m

C$ 188

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Sat 3/5

12:43 p.m.-5:10 p.m.

Nonstop3h 27m

Chicago O'Hare Intl

Fri 9/5

4:00 p.m.-11:08 p.m.

1 stop8h 08m

C$ 251

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Sun 11/5

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

1 stop6h 47m

Chicago O'Hare Intl

Tue 13/5

2:35 p.m.-9:48 p.m.

1 stop8h 13m

C$ 253

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Sat 3/5

6:15 a.m.-6:22 p.m.

1 stop11h 07m

Chicago O'Hare Intl

Fri 9/5

4:00 p.m.-11:08 p.m.

1 stop8h 08m

C$ 267

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Sat 19/4

11:10 a.m.-12:00 p.m.

Nonstop1h 50m

Chicago Midway

Sat 26/4

12:55 p.m.-3:37 p.m.

Nonstop1h 42m

C$ 280

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Sun 11/5

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

Nonstop3h 29m

Chicago O'Hare Intl

Tue 13/5

9:02 p.m.-11:50 a.m.

1 stop15h 48m

C$ 303

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Wed 13/8

6:29 a.m.-10:53 a.m.

Nonstop3h 24m

Chicago O'Hare Intl

Mon 18/8

8:20 p.m.-11:20 p.m.

Nonstop4h 00m

C$ 304

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 1/5

3:59 p.m.-8:45 p.m.

1 stop5h 46m

Chicago O'Hare Intl

Thu 8/5

6:00 a.m.-4:10 p.m.

1 stop9h 10m

C$ 307

TorontoChicago

YTZ - ORD

YTZORD

Toronto Island

Tue 6/5

10:20 a.m.-8:12 p.m.

2 stops10h 52m

Chicago O'Hare Intl

Tue 13/5

8:40 a.m.-2:50 p.m.

1 stop5h 10m

C$ 307

CalgaryChicago

YYC - ORD

YYCORD

Calgary

Fri 11/4

7:40 a.m.-9:45 p.m.

2 stops13h 05m

Chicago O'Hare Intl

Sun 13/4

1:45 p.m.-11:16 p.m.

1 stop10h 31m

C$ 311

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/3

Showing 1-10 of 60 results
1
2
3
...
6

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$ 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 27 March 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 27 March 2025.

The most flights from CA0 to USIL are scheduled on a Monday (54 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (13 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 27 March 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
9,792 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

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
9,792 reviews
Alaska Airlines
8.0
Very good
9,792 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

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
7,895 reviews
Alaska Airlines
8.0
Very good
9,792 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

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
9,792 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

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
1,319 reviews
Alaska Airlines
8.0
Very good
9,792 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

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
381 reviews
Alaska Airlines
8.0
Very good
9,792 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

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$ 131), American Airlines (C$ 141), and Air Canada (C$ 154).

  • 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.
Pearson Intl to Newark flights
Pearson Intl to LaGuardia flights
Pierre Elliott Trudeau Intl to Fort Lauderdale flights
Pearson Intl to John F Kennedy Intl flights
Pearson Intl to Las Vegas flights
Toronto Island to Newark flights
Pearson Intl to Miami flights
Pierre Elliott Trudeau Intl to Miami flights
Pearson Intl to Fort Lauderdale flights
Vancouver Intl to Las Vegas flights
Pearson Intl to Los Angeles flights
Pierre Elliott Trudeau Intl to Newark flights
Pearson Intl to Dallas/Fort Worth flights
Vancouver Intl to Los Angeles flights
Pierre Elliott Trudeau Intl to John F Kennedy Intl flights
Pearson Intl to San Francisco flights
Pierre Elliott Trudeau Intl to LaGuardia flights
Pearson Intl to Orlando flights
Vancouver Intl to John F Kennedy Intl flights
Pearson Intl to O'Hare Intl flights
Pearson Intl to Hobby flights
Pearson Intl to Nashville flights
Vancouver Intl to Newark flights
Pierre Elliott Trudeau Intl to Los Angeles flights
Pierre Elliott Trudeau Intl to Las Vegas flights
Vancouver Intl to San Francisco flights
Pearson Intl to Tampa flights
Pearson Intl to Dulles Intl flights
Toronto Island to Fort Lauderdale flights
Pearson Intl to Boston flights
Pearson Intl to Seattle flights
Vancouver Intl to Honolulu flights
Pierre Elliott Trudeau Intl to Orlando flights
Vancouver Intl to San Diego flights
Pearson Intl to George Bush Intcntl flights
Pearson Intl to Reagan-National flights
Vancouver Intl to Ontario flights
Vancouver Intl to Sky Harbor Intl flights
Pearson Intl to Atlanta flights
Vancouver Intl to Palm Springs flights
Edmonton to Las Vegas flights
Vancouver Intl to O'Hare Intl flights
Toronto Island to Orlando flights
Pierre Elliott Trudeau Intl to Dallas/Fort Worth flights
Toronto Island to Boston flights
Pearson Intl to Austin flights
Toronto Island to Las Vegas flights
Pierre Elliott Trudeau Intl to O'Hare Intl flights
Pearson Intl to Sky Harbor Intl flights
Vancouver Intl to LaGuardia flights

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 27 March 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 151AverageC$ 524FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 163AverageC$ 552FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 184AverageC$ 584FlexibilityNo cancel feeOn-time60%
Search WestJet flights
American AirlinesCheapestC$ 202AverageC$ 484FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 250AverageC$ 623FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 268AverageC$ 461FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Alaska AirlinesCheapestC$ 371AverageC$ 620FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
WestJet EncoreCheapestC$ 575AverageC$ 1,015FlexibilityNo 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.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.