Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Canada to Illinois from C$ 125

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
13 dic. — 20 dic.1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Canada to Illinois

Enter your travel dates to find the best prices.

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 13 noviembre 2025.

vie. 5/129:00 a.m.YYC - ORD
Nonstop3h 35mWestJet
vie. 12/122:20 p.m.ORD - YYC
Nonstop3h 55mWestJet
Deal found 12/11C$ 241
jue. 18/129:15 a.m.YTZ - MDW
Nonstop1h 50mPorter Airlines
lun. 5/14:15 p.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 12/11C$ 261
vie. 19/122:30 p.m.YTZ - MDW
Nonstop1h 50mPorter Airlines
lun. 5/14:15 p.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 12/11C$ 265
mié. 26/116:00 a.m.YYZ - ORD
Nonstop2h 15mAmerican Airlines
dom. 7/126:05 a.m.ORD - YYZ
1 stop4h 51mAmerican Airlines
Deal found 12/11C$ 266
vie. 12/122:30 p.m.YTZ - MDW
Nonstop1h 50mPorter Airlines
lun. 15/1211:00 a.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 10/11C$ 268
vie. 5/126:00 a.m.YYZ - ORD
Nonstop2h 15mAmerican Airlines
dom. 14/125:00 a.m.ORD - YYZ
1 stop5h 02mAmerican Airlines
Deal found 12/11C$ 270
vie. 28/112:30 p.m.YTZ - MDW
Nonstop1h 50mPorter Airlines
dom. 30/114:15 p.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 12/11C$ 272
jue. 27/119:15 a.m.YTZ - MDW
Nonstop1h 50mPorter Airlines
sáb. 29/1112:45 p.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 12/11C$ 273
sáb. 6/124:50 p.m.YYZ - ORD
Nonstop1h 58mAir Canada
dom. 7/128:00 a.m.ORD - YYZ
Nonstop1h 40mAir Canada
Deal found 11/11C$ 275
vie. 5/125:35 a.m.YYC - ORD
1 stop8h 35mMultiple Airlines
vie. 12/122:20 p.m.ORD - YYC
Nonstop3h 55mMultiple Airlines
Deal found 12/11C$ 275
jue. 27/119:15 a.m.YTZ - MDW
Nonstop1h 50mPorter Airlines
dom. 30/114:15 p.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 11/11C$ 275
mar. 9/126:00 a.m.YYZ - ORD
Nonstop2h 15mAmerican Airlines
mar. 16/129:39 a.m.ORD - YYZ
Nonstop1h 51mAmerican Airlines
Deal found 10/11C$ 277

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 13 noviembre 2025.

Round-trip from

C$ 240

One-way from

C$ 125

Popular in

December

Cheapest in

July

Average price

C$ 398

Good round-trip deal

C$ 346 or less

Good one-way deal

C$ 197 or less
WestJet
  • WestJet
  • 2/2-2/3
  • Nonstop
  • 7h 30m total
  • Canada to Illinois
Search Deals
WestJet
  • WestJet
  • 9/5
  • Nonstop
  • 3h 28m total
  • Canada to Illinois
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 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

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 13 noviembre 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

YYZ - ORD

YYZORD

Toronto Pearson Intl

lun. 2/3

9:00 p.m.-10:04 p.m.

Nonstop2h 04m

Chicago O'Hare Intl

jue. 5/3

6:40 p.m.-9:28 p.m.

Nonstop1h 48m

C$ 258

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

vie. 1/5

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

Nonstop1h 50m

Chicago Midway

lun. 4/5

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

Nonstop1h 42m

C$ 265

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

mié. 7/1

9:15 a.m.-10:05 a.m.

Nonstop1h 50m

Chicago Midway

mié. 14/1

11:00 a.m.-1:42 p.m.

Nonstop1h 42m

C$ 272

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

jue. 27/11

9:15 a.m.-10:05 a.m.

Nonstop1h 50m

Chicago Midway

sáb. 29/11

12:45 p.m.-3:27 p.m.

Nonstop1h 42m

C$ 273

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

jue. 27/11

9:15 a.m.-10:05 a.m.

Nonstop1h 50m

Chicago Midway

dom. 30/11

4:15 p.m.-6:57 p.m.

Nonstop1h 42m

C$ 275

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

jue. 18/12

9:15 a.m.-10:05 a.m.

Nonstop1h 50m

Chicago Midway

mar. 6/1

11:00 a.m.-1:42 p.m.

Nonstop1h 42m

C$ 277

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

mar. 2/12

9:15 a.m.-10:05 a.m.

Nonstop1h 50m

Chicago Midway

jue. 4/12

11:00 a.m.-1:42 p.m.

Nonstop1h 42m

C$ 279

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

mié. 26/11

9:00 p.m.-10:05 p.m.

Nonstop2h 05m

Chicago O'Hare Intl

dom. 30/11

1:19 p.m.-4:02 p.m.

Nonstop1h 43m

C$ 283

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

sáb. 2/5

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

Nonstop1h 49m

Chicago Midway

lun. 4/5

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

Nonstop1h 42m

C$ 284

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

vie. 17/4

9:15 a.m.-10:05 a.m.

Nonstop1h 50m

Chicago Midway

dom. 19/4

4:15 p.m.-6:57 p.m.

Nonstop1h 42m

C$ 289

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

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, June is the cheapest month in which you can book a flight from Canada to Illinois (average of C$ 116). Flying from Canada to Illinois in December is currently the most expensive (average of C$ 199). 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 13 noviembre 2025.

When flying from Canada to Illinois, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 24% versus a flight in the morning.

What is the cheapest day to fly from Canada to Illinois?

Use this chart to determine the cheapest time to fly round-trip from Canada to Illinois. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Canada to Illinois flight should consider departing on Friday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 13 noviembre 2025.

The most flights from CA0 to USIL are scheduled on a Thursday (60 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (41 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 13 noviembre 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
8.0
Very good
389 reviews
Check prices

Food

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Porter Airlines
8.0
Very good
389 reviews
Porter Airlines
8.0
Very good
389 reviews
Check prices

Food

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
United Airlines
7.4
Good
9,015 reviews
Porter Airlines
8.0
Very good
389 reviews
Check prices

Food

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
American Airlines
7.2
Good
11,050 reviews
Porter Airlines
8.0
Very good
389 reviews
Check prices

Food

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
WestJet
7.2
Good
3,159 reviews
Porter Airlines
8.0
Very good
389 reviews
Check prices

Food

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Air Canada
7.1
Good
10,444 reviews
Porter Airlines
8.0
Very good
389 reviews
Check prices

Food

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

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, Porter Airlines, and Delta can get you from Canada to Illinois in just under 1h 50m. Your travel time can differ by up to 1h 40m. 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 WestJet (C$ 139), United Airlines (C$ 160), and Delta (C$ 179).

  • 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, June is the cheapest month in which you can book a flight from Canada to Illinois (average of C$ 116). Flying from Canada to Illinois in December is currently the most expensive (average of C$ 199). 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 Fort Lauderdale flights
Toronto Island to Newark flights
Pearson Intl to Newark flights
Pierre Elliott Trudeau Intl to Fort Lauderdale flights
Pearson Intl to LaGuardia flights
Pierre Elliott Trudeau Intl to Miami flights
Pearson Intl to Miami flights
Vancouver Intl to Los Angeles flights
Pearson Intl to Las Vegas flights
Pierre Elliott Trudeau Intl to John F Kennedy Intl flights
Pearson Intl to Los Angeles flights
Pearson Intl to Orlando flights
Pierre Elliott Trudeau Intl to LaGuardia flights
Vancouver Intl to John F Kennedy Intl flights
Pierre Elliott Trudeau Intl to Newark flights
Vancouver Intl to Newark flights
Vancouver Intl to Las Vegas flights
Pearson Intl to Dallas/Fort Worth flights
Toronto Island to Fort Lauderdale flights
Vancouver Intl to Sky Harbor Intl flights
Pearson Intl to Hobby flights
Pearson Intl to San Francisco flights
Vancouver Intl to Honolulu flights
Pierre Elliott Trudeau Intl to Orlando flights
Pierre Elliott Trudeau Intl to Los Angeles flights
Toronto Island to Orlando flights
Pearson Intl to Tampa flights
Vancouver Intl to LaGuardia flights
Pierre Elliott Trudeau Intl to Las Vegas flights
Toronto Island to Miami flights
Pearson Intl to Reagan-National flights
Vancouver Intl to Ontario flights
Pearson Intl to George Bush Intcntl flights
Vancouver Intl to San Francisco flights
Pearson Intl to Boston flights
Vancouver Intl to Palm Springs flights
Calgary to Las Vegas flights
Hamilton to Fort Lauderdale flights
Vancouver Intl to Miami flights
Pearson Intl to Sky Harbor Intl flights
Pearson Intl to Seattle flights
Vancouver Intl to Seattle flights
Pearson Intl to Fort Myers flights
Abbotsford to Los Angeles flights
Pearson Intl to Dulles Intl flights
Vancouver Intl to San Diego flights
Québec City to Fort Lauderdale flights
Vancouver Intl to Fort Lauderdale flights
Pearson Intl to Atlanta 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 13 noviembre 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 151AverageC$ 486FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 179AverageC$ 423FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 187AverageC$ 374FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 188AverageC$ 424FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Porter AirlinesCheapestC$ 198AverageC$ 416FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 208AverageC$ 562FlexibilityNo 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.