Cheap flights from Canada to Illinois from C$ 143
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 15/8. Fares are subject to change and may not be available on all flights or dates of travel.
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 3 July 2025.
Round-trip from | C$ 195 |
---|---|
One-way from | C$ 143 |
Popular in | December |
Cheapest in | April |
Average price | C$ 343 |
Good round-trip deal | C$ 228 or less |
Good one-way deal | C$ 154 or less |
Find flight deals from Canada to Illinois
Cheapest flights from Canada to IllinoisExplore 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 3 July 2025.
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 3 July 2025.
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 3 July 2025.
Use the filters below to find and compare flights from Canada to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Mon 8/9
12:15 p.m.-4:43 p.m.
Nonstop3h 28m
Chicago O'Hare Intl
Thu 11/9
5:30 p.m.-8:19 p.m.
Nonstop3h 49m
TorontoChicago
YYZ - ORD
YYZORD
Toronto Pearson Intl
Wed 10/9
11:44 a.m.-12:39 p.m.
Nonstop1h 55m
Chicago O'Hare Intl
Fri 12/9
9:39 a.m.-12:32 p.m.
Nonstop1h 53m
TorontoChicago
YTZ - MDW
YTZMDW
Toronto Island
Tue 15/7
7:55 a.m.-8:45 a.m.
Nonstop1h 50m
Chicago Midway
Tue 15/7
5:20 p.m.-8:02 p.m.
Nonstop1h 42m
TorontoChicago
YYZ - ORD
YYZORD
Toronto Pearson Intl
Fri 15/8
6:35 p.m.-7:29 p.m.
Nonstop1h 54m
Chicago O'Hare Intl
Fri 22/8
8:25 p.m.-11:10 p.m.
Nonstop1h 45m
TorontoChicago
YTZ - MDW
YTZMDW
Toronto Island
Fri 5/9
7:30 a.m.-8:19 a.m.
Nonstop1h 49m
Chicago Midway
Mon 8/9
9:15 a.m.-11:57 a.m.
Nonstop1h 42m
TorontoChicago
YTZ - MDW
YTZMDW
Toronto Island
Wed 30/7
7:55 a.m.-8:45 a.m.
Nonstop1h 50m
Chicago Midway
Wed 6/8
9:40 a.m.-12:20 p.m.
Nonstop1h 40m
TorontoChicago
YTZ - ORD
YTZORD
Toronto Island
Sat 16/8
3:25 p.m.-8:16 p.m.
1 stop5h 51m
Chicago O'Hare Intl
Sat 23/8
3:35 p.m.-9:31 p.m.
1 stop4h 56m
TorontoChicago
YYZ - ORD
YYZORD
Toronto Pearson Intl
Thu 14/8
7:00 a.m.-7:59 a.m.
Nonstop1h 59m
Chicago O'Hare Intl
Tue 19/8
10:43 a.m.-5:19 p.m.
1 stop5h 36m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Wed 20/8
1:05 a.m.-9:46 a.m.
1 stop7h 41m
Chicago O'Hare Intl
Wed 27/8
5:30 p.m.-8:19 p.m.
Nonstop3h 49m
CalgaryChicago
YYC - ORD
YYCORD
Calgary
Wed 20/8
1:05 a.m.-9:46 a.m.
1 stop7h 41m
Chicago O'Hare Intl
Wed 27/8
3:50 p.m.-12:10 a.m.
1 stop9h 20m
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.
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$ 352). 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 3 July 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 3 July 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 (28 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 3 July 2025.
Check out reviews from past customers who have flown with Alaska Airlines,Porter Airlines, andDelta 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.
Comfort
Food
Overall
Crew
Entertainment
Boarding
Reviews
James,Apr 2025
LAX - SFO
Comfort
Food
Overall
Crew
Entertainment
Boarding
Reviews
James,Apr 2025
LAX - SFO
Comfort
Food
Overall
Crew
Entertainment
Boarding
Reviews
James,Apr 2025
LAX - SFO
Comfort
Food
Overall
Crew
Entertainment
Boarding
Reviews
James,Apr 2025
LAX - SFO
Comfort
Food
Overall
Crew
Entertainment
Boarding
Reviews
James,Apr 2025
LAX - SFO
Comfort
Food
Overall
Crew
Entertainment
Boarding
Reviews
James,Apr 2025
LAX - SFO
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.
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.
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 3 July 2025.
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.