Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Canada to Illinois from C$ 124

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 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
27 Aug — 3 Sep1
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 22 August 2025.

Round-trip from

C$ 174

One-way from

C$ 124

Popular in

December

Cheapest in

July

Average price

C$ 358

Good round-trip deal

C$ 242 or less

Good one-way deal

C$ 155 or less
United Airlines
  • United Airlines
  • 11/9-14/9
  • Nonstop
  • 5h 31m total
  • Canada to Illinois
Search Deals
United Airlines
  • United Airlines
  • 16/9
  • Nonstop
  • 2h 55m total
  • Canada to Illinois
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 22 August 2025.

Thu 11/93:18 p.m.YQB - ORD
Nonstop2h 55mUnited Airlines
Sun 14/910:40 a.m.ORD - YQB
Nonstop2h 36mUnited Airlines
Deal found 19/8C$ 174
Sun 5/105:20 a.m.YQB - ORD
1 stop4h 54mAir Canada
Sun 12/1010:40 a.m.ORD - YQB
1 stop5h 50mAir Canada
Deal found 21/8C$ 196
Thu 2/105:20 a.m.YQB - ORD
1 stop4h 54mAir Canada
Mon 6/109:55 a.m.ORD - YQB
2 stops9h 08mAir Canada
Deal found 21/8C$ 203
Sun 14/97:50 a.m.YTZ - MDW
Nonstop1h 49mPorter Airlines
Wed 17/95:20 p.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 21/8C$ 203
Thu 20/114:30 p.m.YYZ - ORD
Nonstop1h 58mAir Canada
Sun 30/118:00 a.m.ORD - YYZ
Nonstop1h 40mAir Canada
Deal found 21/8C$ 204
Sat 4/105:20 a.m.YQB - ORD
1 stop4h 54mAir Canada
Sat 11/109:55 a.m.ORD - YQB
1 stop4h 45mAir Canada
Deal found 20/8C$ 206
Thu 11/97:50 a.m.YTZ - MDW
Nonstop1h 49mPorter Airlines
Sun 14/99:35 a.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 21/8C$ 207
Fri 12/93:35 p.m.YTZ - MDW
Nonstop1h 49mPorter Airlines
Mon 15/99:35 a.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 21/8C$ 210
Fri 26/97:50 a.m.YTZ - MDW
Nonstop1h 49mPorter Airlines
Sun 28/99:35 a.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 21/8C$ 211
Tue 23/93:35 p.m.YTZ - MDW
Nonstop1h 49mPorter Airlines
Sat 27/99:35 a.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 21/8C$ 212
Sat 13/97:50 a.m.YTZ - MDW
Nonstop1h 49mPorter Airlines
Sat 20/99:35 a.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 21/8C$ 214
Sun 14/97:50 a.m.YTZ - MDW
Nonstop1h 49mPorter Airlines
Thu 18/99:35 a.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 21/8C$ 215

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 22 August 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

Québec CityChicago

YQB - ORD

YQBORD

Québec City

Thu 11/9

3:18 p.m.-5:13 p.m.

Nonstop2h 55m

Chicago O'Hare Intl

Sun 14/9

10:40 a.m.-2:16 p.m.

Nonstop2h 36m

C$ 174

Québec CityChicago

YQB - ORD

YQBORD

Québec City

Sun 5/10

5:20 a.m.-9:14 a.m.

1 stop4h 54m

Chicago O'Hare Intl

Sun 12/10

10:40 a.m.-5:30 p.m.

1 stop5h 50m

C$ 196

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Tue 16/9

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

Nonstop1h 49m

Chicago Midway

Sat 20/9

9:35 a.m.-12:17 p.m.

Nonstop1h 42m

C$ 203

Québec CityChicago

YQB - ORD

YQBORD

Québec City

Thu 2/10

5:20 a.m.-9:14 a.m.

1 stop4h 54m

Chicago O'Hare Intl

Mon 6/10

9:55 a.m.-8:03 p.m.

2 stops9h 08m

C$ 203

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Mon 29/9

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

Nonstop1h 49m

Chicago Midway

Wed 1/10

9:35 a.m.-12:17 p.m.

Nonstop1h 42m

C$ 203

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Sun 14/9

7:50 a.m.-8:39 a.m.

Nonstop1h 49m

Chicago Midway

Wed 17/9

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

Nonstop1h 42m

C$ 203

Québec CityChicago

YQB - ORD

YQBORD

Québec City

Tue 21/10

5:20 a.m.-9:14 a.m.

1 stop4h 54m

Chicago O'Hare Intl

Fri 24/10

3:50 p.m.-10:10 p.m.

1 stop5h 20m

C$ 206

Québec CityChicago

YQB - ORD

YQBORD

Québec City

Sat 4/10

5:20 a.m.-9:14 a.m.

1 stop4h 54m

Chicago O'Hare Intl

Sat 11/10

9:55 a.m.-3:40 p.m.

1 stop4h 45m

C$ 206

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Thu 11/9

7:50 a.m.-8:39 a.m.

Nonstop1h 49m

Chicago Midway

Sun 14/9

9:35 a.m.-12:17 p.m.

Nonstop1h 42m

C$ 207

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Fri 3/10

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

Nonstop1h 49m

Chicago Midway

Tue 7/10

9:35 a.m.-12:17 p.m.

Nonstop1h 42m

C$ 210

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/8

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$ 351). 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 22 August 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 22 August 2025.

The most flights from CA0 to USIL are scheduled on a Wednesday (60 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (45 on average).

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 22 August 2025.
Check out reviews from past customers who have flown with Porter Airlines,United Airlines, andAmerican Airlines from Canada to Illinois to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
7.9
Good
341 reviews
Check prices

Overall

7.9

Crew

8.6

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Porter Airlines
7.9
Good
341 reviews
Porter Airlines
7.9
Good
341 reviews
Check prices

Overall

7.9

Crew

8.6

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
United Airlines
7.4
Good
8,934 reviews
Porter Airlines
7.9
Good
341 reviews
Check prices

Overall

7.9

Crew

8.6

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
7.9
Good
341 reviews
Check prices

Overall

7.9

Crew

8.6

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
WestJet
7.2
Good
3,044 reviews
Porter Airlines
7.9
Good
341 reviews
Check prices

Overall

7.9

Crew

8.6

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Canada
7.1
Good
10,000 reviews
Porter Airlines
7.9
Good
341 reviews
Check prices

Overall

7.9

Crew

8.6

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

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.

  • How long is the flight from Canada to Illinois?

    United Airlines, Air Canada, and Porter Airlines can get you from Canada to Illinois in just under 1h 49m. Your travel time can differ by up to 3h 05m. The distance between Canada and Illinois is about 711 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 United Airlines (C$ 124), Air Canada (C$ 129), and American Airlines (C$ 146).

  • 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$ 351). 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 John F Kennedy Intl flights
Pearson Intl to Newark flights
Toronto Island to Newark flights
Pearson Intl to LaGuardia flights
Pierre Elliott Trudeau Intl to Miami flights
Pearson Intl to Las Vegas flights
Pearson Intl to Fort Lauderdale flights
Pierre Elliott Trudeau Intl to Fort Lauderdale flights
Pearson Intl to Miami flights
Pearson Intl to Los Angeles flights
Pierre Elliott Trudeau Intl to LaGuardia flights
Pearson Intl to Orlando flights
Pierre Elliott Trudeau Intl to Newark flights
Pierre Elliott Trudeau Intl to John F Kennedy Intl flights
Pearson Intl to Dallas/Fort Worth flights
Vancouver Intl to John F Kennedy Intl flights
Vancouver Intl to Newark flights
Vancouver Intl to Santa Ana flights
Vancouver Intl to Los Angeles flights
Vancouver Intl to Las Vegas flights
Pearson Intl to San Francisco flights
Pierre Elliott Trudeau Intl to Orlando flights
Pierre Elliott Trudeau Intl to Reagan-National flights
Pearson Intl to O'Hare Intl flights
Vancouver Intl to Honolulu flights
Pearson Intl to Boston flights
Pierre Elliott Trudeau Intl to Las Vegas flights
Pearson Intl to Hobby flights
Pearson Intl to Seattle flights
Pierre Elliott Trudeau Intl to Dulles Intl flights
Toronto Island to Fort Lauderdale flights
Pearson Intl to Nashville flights
Pierre Elliott Trudeau Intl to Los Angeles flights
Pearson Intl to George Bush Intcntl flights
Vancouver Intl to San Francisco flights
Pearson Intl to Atlanta flights
Pierre Elliott Trudeau Intl to San Francisco flights
Vancouver Intl to LaGuardia flights
Calgary to Las Vegas flights
Calgary to Los Angeles flights
Vancouver Intl to O'Hare Intl flights
Toronto Island to Orlando flights
Pearson Intl to Reagan-National flights
Toronto Island to Boston flights
Vancouver Intl to Ontario flights
Pearson Intl to Dulles Intl flights
Ottawa to Fort Lauderdale flights
Vancouver Intl to Denver flights
Pearson Intl to Sky Harbor Intl flights
Pearson Intl to Midway flights

Top 6 airlines flying from Canada to Illinois

Discover the top 6 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 22 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 150AverageC$ 502FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 178AverageC$ 464FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 185AverageC$ 480FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 186AverageC$ 455FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Porter AirlinesCheapestC$ 204AverageC$ 422FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 243AverageC$ 672FlexibilityNo cancel feeOn-time69%
Search United 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.

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.