Cheap flights from Canada to Illinois from C$ 202
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/11. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
7 Nov — 14 Nov1
Cheap flight deals from Canada to Illinois
Enter your travel dates to find the best prices.
Cheapest
Best
Direct
Last-minute
One-way
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 8 October 2026.
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 8 October 2026.
Sat 24/1012:15 p.m. -
Nonstop2h 10m
Fri 30/101:55 p.m. -
Nonstop1h 47m
Deal found 5/10C$ 323
Sat 31/107:44 p.m. -
1 stop13h 45m
Sun 1/1111:05 a.m. -
Nonstop1h 58m
Deal found 5/10C$ 329
Sat 5/128:35 a.m. -
Nonstop2h 09m
Sat 5/126:15 p.m. -
1 stop4h 37m
Deal found 4/10C$ 330
Sat 21/1110:00 a.m. -
1 stop5h 40m
Sat 21/119:21 p.m. -
Nonstop1h 38m
Deal found 4/10C$ 349
Sat 31/107:43 a.m. -
1 stop7h 16m
Sat 31/106:17 p.m. -
Nonstop1h 58m
Deal found 7/10C$ 357
Wed 21/101:45 p.m. -
Nonstop1h 50m
Sat 24/1011:45 a.m. -
Nonstop1h 40m
Deal found 4/10C$ 359
Mon 19/108:50 a.m. -
Nonstop1h 58m
Thu 22/109:20 p.m. -
Nonstop1h 39m
Deal found 6/10C$ 369
Fri 6/114:30 p.m. -
Nonstop2h 13m
Sun 8/118:45 a.m. -
Nonstop1h 42m
Deal found 7/10C$ 372
Thu 19/116:45 a.m. -
1 stop5h 22m
Thu 26/111:55 p.m. -
Nonstop1h 47m
Deal found 5/10C$ 372
Fri 6/114:35 p.m. -
Nonstop2h 05m
Sun 8/1112:15 p.m. -
Nonstop1h 45m
Deal found 5/10C$ 374
Fri 30/104:35 p.m. -
Nonstop2h 05m
Mon 2/116:20 p.m. -
Nonstop1h 46m
Deal found 3/10C$ 376
Fri 27/117:00 a.m. -
1 stop5h 07m
Sun 29/1110:15 a.m. -
Nonstop1h 37m
Deal found 7/10C$ 384
Best flights from Canada to IllinoisDiscover carefully curated flight deals from Canada to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 8 October 2026.
Discover carefully curated flight deals from Canada to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 8 October 2026.
Wed 25/116:45 a.m. -
1 stop5h 22m
Sat 28/111:55 p.m. -
1 stop5h 01m
Deal found 7/10C$ 403
Mon 7/122:25 p.m. -
1 stop6h 50m
Sun 13/127:05 a.m. -
1 stop5h 30m
Deal found 7/10C$ 406
Thu 12/114:35 p.m. -
Nonstop2h 05m
Sun 15/116:20 p.m. -
Nonstop1h 45m
Deal found 7/10C$ 409
Fri 27/113:35 p.m. -
Nonstop2h 09m
Sun 29/114:30 p.m. -
Nonstop1h 40m
Deal found 3/10C$ 464
Sat 24/107:00 p.m. -
1 stop5h 21m
Mon 26/103:43 p.m. -
1 stop6h 43m
Deal found 3/10C$ 470
Sat 27/22:35 p.m. -
1 stop7h 24m
Sat 6/38:00 a.m. -
1 stop7h 35m
Deal found 6/10C$ 682
Thu 26/1110:45 a.m. -
1 stop5h 17m
Sat 28/111:55 p.m. -
1 stop5h 01m
Deal found 3/10C$ 403
Fri 4/1212:15 p.m. -
1 stop7h 11m
Sat 12/125:05 p.m. -
1 stop5h 02m
Deal found 7/10C$ 406
Sat 31/107:00 a.m. -
1 stop7h 20m
Fri 6/112:50 p.m. -
1 stop7h 02m
Deal found 7/10C$ 816
Mon 16/114:35 p.m. -
Nonstop2h 05m
Fri 20/1112:15 p.m. -
Nonstop1h 45m
Deal found 6/10C$ 447
Tue 27/109:40 a.m. -
1 stop7h 52m
Fri 30/108:29 a.m. -
1 stop4h 07m
Deal found 6/10C$ 413
Sat 24/1012:15 p.m. -
Nonstop2h 10m
Mon 26/101:55 p.m. -
Nonstop1h 47m
Deal found 3/10C$ 419
Tue 3/1112:55 p.m. -
1 stop5h 22m
Tue 10/112:30 p.m. -
1 stop5h 54m
Deal found 4/10C$ 473
Fri 13/114:35 p.m. -
Nonstop2h 05m
Mon 23/116:20 p.m. -
Nonstop1h 45m
Deal found 6/10C$ 447
Tue 27/109:40 a.m. -
1 stop7h 52m
Thu 29/107:00 a.m. -
1 stop5h 36m
Deal found 6/10C$ 413
Wed 9/126:00 a.m. -
Nonstop3h 00m
Tue 15/1212:55 p.m. -
1 stop7h 47m
Deal found 6/10C$ 476
Sat 14/114:35 p.m. -
Nonstop2h 05m
Tue 24/116:20 p.m. -
Nonstop1h 45m
Deal found 6/10C$ 447
Tue 17/111:37 p.m. -
Nonstop2h 33m
Mon 23/114:45 p.m. -
1 stop8h 21m
Deal found 5/10C$ 544
Fri 20/112:20 p.m. -
1 stop5h 10m
Fri 4/127:05 a.m. -
1 stop5h 30m
Deal found 6/10C$ 413
Thu 29/107:00 a.m. -
1 stop7h 09m
Sun 1/115:55 a.m. -
1 stop6h 33m
Deal found 5/10C$ 483
Mon 30/114:35 p.m. -
Nonstop2h 05m
Sat 5/126:20 p.m. -
Nonstop1h 46m
Deal found 4/10C$ 447
Thu 3/121:50 a.m. -
1 stop8h 17m
Sat 12/127:05 a.m. -
1 stop10h 54m
Deal found 3/10C$ 498
Sat 23/18:45 a.m. -
1 stop7h 04m
Thu 28/11:55 p.m. -
1 stop11h 18m
Deal found 2/10C$ 423
Sat 19/126:00 a.m. -
Nonstop3h 07m
Tue 5/110:33 a.m. -
Nonstop2h 27m
Deal found 3/10C$ 496
Tue 27/103:20 p.m. -
1 stop9h 41m
Sat 31/107:05 a.m. -
2 stops10h 14m
Deal found 3/10C$ 612
Sat 24/1010:10 a.m. -
Nonstop1h 50m
Sat 24/103:20 p.m. -
Nonstop1h 40m
Deal found 4/10C$ 464
Wed 4/112:28 p.m. -
1 stop7h 15m
Wed 11/111:30 p.m. -
1 stop9h 18m
Deal found 7/10C$ 423
Mon 23/117:10 a.m. -
1 stop5h 38m
Sat 28/117:00 a.m. -
1 stop5h 40m
Deal found 6/10C$ 423
Tue 5/110:40 a.m. -
1 stop9h 53m
Mon 11/18:40 a.m. -
Nonstop4h 55m
Deal found 2/10C$ 530
Thu 19/1110:55 a.m. -
1 stop5h 07m
Thu 26/117:05 a.m. -
1 stop5h 55m
Deal found 5/10C$ 595
Direct flights from Canada to IllinoisExplore direct flight options from Canada to Illinois based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 October 2026.
Explore direct flight options from Canada to Illinois based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 October 2026.
Sat 24/1012:15 p.m. -
Nonstop2h 10m
Fri 30/101:55 p.m. -
Nonstop1h 47m
Deal found 5/10C$ 323
Wed 21/101:45 p.m. -
Nonstop1h 50m
Sat 24/1011:45 a.m. -
Nonstop1h 40m
Deal found 4/10C$ 359
Mon 19/108:50 a.m. -
Nonstop1h 58m
Thu 22/109:20 p.m. -
Nonstop1h 39m
Deal found 6/10C$ 369
Fri 6/116:55 p.m. -
Nonstop2h 03m
Fri 13/114:30 p.m. -
Nonstop1h 40m
Deal found 7/10C$ 372
Fri 6/114:35 p.m. -
Nonstop2h 05m
Sun 8/1112:15 p.m. -
Nonstop1h 45m
Deal found 5/10C$ 374
Fri 30/104:35 p.m. -
Nonstop2h 05m
Mon 2/116:20 p.m. -
Nonstop1h 46m
Deal found 3/10C$ 376
Thu 29/1012:05 p.m. -
Nonstop2h 15m
Sun 1/111:55 p.m. -
Nonstop1h 47m
Deal found 7/10C$ 384
Sat 31/1010:35 a.m. -
Nonstop2h 05m
Tue 3/116:20 p.m. -
Nonstop1h 45m
Deal found 6/10C$ 389
Wed 28/104:35 p.m. -
Nonstop2h 05m
Mon 2/1112:15 p.m. -
Nonstop1h 45m
Deal found 6/10C$ 390
Thu 29/104:35 p.m. -
Nonstop2h 05m
Sun 1/1112:15 p.m. -
Nonstop1h 45m
Deal found 6/10C$ 399
Thu 5/118:20 a.m. -
Nonstop2h 03m
Sun 8/1110:15 a.m. -
Nonstop1h 37m
Deal found 6/10C$ 400
Wed 11/116:55 p.m. -
Nonstop2h 03m
Wed 18/118:45 a.m. -
Nonstop1h 42m
Deal found 4/10C$ 402
Last-minute flights from Canada to IllinoisDiscover last-minute flight deals from Canada to Illinois. Data last updated 8 October 2026 and is based on user searches.
Discover last-minute flight deals from Canada to Illinois. Data last updated 8 October 2026 and is based on user searches.
Mon 19/108:50 a.m. -
Nonstop1h 58m
Thu 22/109:20 p.m. -
Nonstop1h 39m
Deal found 6/10C$ 369
Wed 21/101:45 p.m. -
Nonstop1h 50m
Sat 24/1011:45 a.m. -
Nonstop1h 40m
Deal found 4/10C$ 359
Sat 24/1012:15 p.m. -
Nonstop2h 10m
Fri 30/101:55 p.m. -
Nonstop1h 47m
Deal found 5/10C$ 323
Fri 30/104:35 p.m. -
Nonstop2h 05m
Mon 2/116:20 p.m. -
Nonstop1h 46m
Deal found 3/10C$ 376
Sat 31/107:44 p.m. -
1 stop13h 45m
Sun 1/1111:05 a.m. -
Nonstop1h 58m
Deal found 5/10C$ 329
Sat 31/107:43 a.m. -
1 stop7h 16m
Sat 31/106:17 p.m. -
Nonstop1h 58m
Deal found 7/10C$ 357
Fri 6/116:55 p.m. -
Nonstop2h 03m
Fri 13/114:30 p.m. -
Nonstop1h 40m
Deal found 7/10C$ 372
Fri 6/114:35 p.m. -
Nonstop2h 05m
Mon 9/1112:15 p.m. -
Nonstop1h 45m
Deal found 5/10C$ 374
Thu 19/116:45 a.m. -
1 stop5h 22m
Thu 26/111:55 p.m. -
Nonstop1h 47m
Deal found 5/10C$ 372
Sat 21/1110:00 a.m. -
1 stop5h 40m
Sat 21/119:21 p.m. -
Nonstop1h 38m
Deal found 4/10C$ 349
Thu 26/1112:05 p.m. -
Nonstop2h 15m
Sun 29/111:55 p.m. -
Nonstop1h 47m
Deal found 7/10C$ 384
Fri 27/117:00 a.m. -
1 stop5h 07m
Sun 29/1110:15 a.m. -
Nonstop1h 37m
Deal found 7/10C$ 384
One-way flights from Canada to IllinoisSearch for one-way flight options from Canada to Illinois. Find affordable one-way fares based on user searches. Data last updated 8 October 2026.
Search for one-way flight options from Canada to Illinois. Find affordable one-way fares based on user searches. Data last updated 8 October 2026.
Mon 23/117:35 a.m. -
1 stop16h 59m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 7/10C$ 202
Mon 23/112:45 p.m. -
Nonstop2h 03m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 7/10C$ 221
Wed 28/104:30 p.m. -
Nonstop2h 13m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 7/10C$ 224
Thu 19/116:45 a.m. -
1 stop5h 22m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 4/10C$ 224
Tue 1/1210:45 a.m. -
1 stop5h 07m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 3/10C$ 231
Wed 18/116:45 a.m. -
1 stop5h 22m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 5/10C$ 232
Wed 25/116:45 a.m. -
1 stop5h 22m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 7/10C$ 234
Sat 31/107:00 a.m. -
1 stop5h 07m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 7/10C$ 235
Sat 31/107:35 a.m. -
1 stop9h 02m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 7/10C$ 236
Wed 28/1012:05 p.m. -
Nonstop2h 15m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 7/10C$ 236
Wed 14/101:15 p.m. -
Nonstop2h 05m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 7/10C$ 239
Fri 23/1010:10 a.m. -
Nonstop1h 50m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 2/10C$ 241
Find flight deals from Canada to Illinois
Keep the following information in mind while searching for Canada to Illinois flight deals. Data was last updated 8 October 2026.
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 7,457,451 searches. Data last updated 8 October 2026.
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
Cheapest round-trip
TorontoChicago
YTZ Toronto Island - ORD Chicago O'Hare Intl
YTZORD
Toronto Island
Wed 28/10
12:05 p.m.-1:20 p.m.
Nonstop2h 15m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 236
TorontoChicago
YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl
YYZORD
Toronto Pearson Intl
Sun 6/12
6:00 a.m.-1:56 p.m.
1 stop8h 56m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 245
TorontoChicago
YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl
YYZORD
Toronto Pearson Intl
Tue 3/11
9:40 a.m.-4:32 p.m.
1 stop7h 52m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 245
TorontoChicago
YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl
YYZORD
Toronto Pearson Intl
Mon 9/11
12:15 p.m.-6:30 p.m.
1 stop7h 15m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 248
TorontoChicago
YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl
YYZORD
Toronto Pearson Intl
Wed 28/10
2:26 p.m.-8:30 p.m.
1 stop7h 04m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 248
TorontoChicago
YYZ Toronto Pearson Intl - ORD Chicago O'Hare Intl
YYZORD
Toronto Pearson Intl
Sat 28/11
12:15 p.m.-6:30 p.m.
1 stop7h 15m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 248
CalgaryChicago
YYC Calgary - ORD Chicago O'Hare Intl
YYCORD
Calgary
Fri 4/12
1:37 p.m.-5:10 p.m.
Nonstop2h 33m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-11:00 p.m.
Nonstop0h 00m
C$ 249
TorontoChicago
YTZ Toronto Island - ORD Chicago O'Hare Intl
YTZORD
Toronto Island
Thu 12/11
10:35 a.m.-11:40 a.m.
Nonstop2h 05m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 249
TorontoChicago
YTZ Toronto Island - ORD Chicago O'Hare Intl
YTZORD
Toronto Island
Mon 16/11
10:45 a.m.-3:00 p.m.
1 stop5h 15m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 249
TorontoChicago
YTZ Toronto Island - ORD Chicago O'Hare Intl
YTZORD
Toronto Island
Sat 31/10
10:35 a.m.-11:40 a.m.
Nonstop2h 05m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 251
Showing 1-10 of 60 resultsSorted by cheapest first
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.
YTZ-ORD
YYZ-ORD
YVR-ORD
YWG-ORD
YUL-ORD
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
CA0-USIL
YTZ-ORD
YYZ-ORD
YVR-ORD
YWG-ORD
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$ 404). Flying from Canada to Illinois in December is currently the most expensive (average of C$ 518). 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 8 October 2026.
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 23% versus a flight at noon.
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 8 October 2026.
The most flights from CA0 to USIL are scheduled on a Monday (69 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (38 on average).
How far ahead should I book a flight from Canada to Illinois?
Booking 87 days in advance of your planned departure date is, on average, the best time to get cheap flights from Canada to Illinois. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 15 August 2026.
Travelers seeking maximum savings on their Canada to Illinois flight should consider departing on Friday mornings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 8 October 2026.
Check out reviews from past customers who have flown with Porter Airlines,United Airlines, andWestJet 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.
Crew
8.6
Entertainment
7.0
Overall
8.0
Comfort
8.0
Food
7.6
Boarding
8.2
Reviews
1 / 20
8.0
ExcellentD,Sep 2026
YHM - YVR
Crew
8.6
Entertainment
7.0
Overall
8.0
Comfort
8.0
Food
7.6
Boarding
8.2
Reviews
1 / 20
8.0
ExcellentD,Sep 2026
YHM - YVR
Crew
8.6
Entertainment
7.0
Overall
8.0
Comfort
8.0
Food
7.6
Boarding
8.2
Reviews
1 / 20
8.0
ExcellentD,Sep 2026
YHM - YVR
Crew
8.6
Entertainment
7.0
Overall
8.0
Comfort
8.0
Food
7.6
Boarding
8.2
Reviews
1 / 20
8.0
ExcellentD,Sep 2026
YHM - YVR
Crew
8.6
Entertainment
7.0
Overall
8.0
Comfort
8.0
Food
7.6
Boarding
8.2
Reviews
1 / 20
8.0
ExcellentD,Sep 2026
YHM - YVR
Crew
8.6
Entertainment
7.0
Overall
8.0
Comfort
8.0
Food
7.6
Boarding
8.2
Reviews
1 / 20
8.0
ExcellentD,Sep 2026
YHM - YVR
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
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Airlines
Alternative routes
Complete your trip
Direct flights to United States
Flights by cabin class
Other flight options
Popular flights
Return Flight Options
Top destinations
Airlines flying to Illinois
Alternative routes for Canada to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
Direct flights to United States
Book a non-stop flight to one of these other cities located in United States.
Search flights from Canada to Illinois by cabin class
Find flights from Canada to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Canada and Illinois flights
Browse other Canada and Illinois flight options. Last updated on 8 October 2026.
Popular flight searches
Check out other popular destinations found by fellow travellers in 2026
Find a return flight route from Illinois
Find the right flight back to Canada after your stay in Illinois
Canada to Illinois flights
Consider these flights travelling from Canada to Illinois.
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 7,457,451 searches. Data last updated 8 October 2026.
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.