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Cheap flights from Toronto Region of Waterloo Intl Airport to Illinois from C$ 192

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 30/5. Fares are subject to change and may not be available on all flights or dates of travel.
YKF — ORD
25 May — 1 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Region of Waterloo Intl to Illinois

Enter your travel dates to find the best prices.

Cheapest flights from Region of Waterloo Intl to Illinois
Explore the most affordable flight options available from Region of Waterloo Intl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 April 2026.

Fri 5/66:05 a.m.
YKF
-
ORD
1 stop11h 35m
Multiple Airlines
Fri 12/65:30 p.m.
ORD
-
YKF
1 stop20h 30m
Multiple Airlines
Deal found 21/4C$ 768
Fri 5/68:40 p.m.
YKF
-
ORD
2 stops34h 19m
Multiple Airlines
Tue 16/64:06 p.m.
ORD
-
YKF
3 stops26h 44m
Multiple Airlines
Deal found 22/4C$ 876
Mon 8/68:40 p.m.
YKF
-
ORD
1 stop21h 00m
Multiple Airlines
Mon 15/65:35 p.m.
ORD
-
YKF
2 stops25h 15m
Multiple Airlines
Deal found 23/4C$ 906
Sat 27/68:40 p.m.
YKF
-
ORD
3 stops23h 44m
Multiple Airlines
Sun 12/75:30 p.m.
ORD
-
YKF
1 stop10h 50m
Multiple Airlines
Deal found 24/4C$ 911
Fri 19/68:40 p.m.
YKF
-
ORD
2 stops34h 22m
Multiple Airlines
Sun 21/68:34 p.m.
ORD
-
YKF
2 stops22h 16m
Multiple Airlines
Deal found 24/4C$ 951
Mon 8/68:40 p.m.
YKF
-
ORD
1 stop21h 00m
WestJet
Mon 15/65:30 p.m.
ORD
-
YKF
1 stop25h 20m
WestJet
Deal found 23/4C$ 1,025
Tue 16/68:40 p.m.
YKF
-
ORD
2 stops34h 19m
Multiple Airlines
Tue 23/68:34 p.m.
ORD
-
YKF
2 stops22h 16m
Multiple Airlines
Deal found 20/4C$ 1,044
Tue 16/68:40 p.m.
YKF
-
ORD
2 stops34h 19m
Multiple Airlines
Thu 18/68:34 p.m.
ORD
-
YKF
2 stops22h 16m
Multiple Airlines
Deal found 20/4C$ 1,046
Thu 27/86:05 a.m.
YKF
-
ORD
1 stop11h 35m
Multiple Airlines
Fri 28/85:30 p.m.
ORD
-
YKF
1 stop10h 50m
Multiple Airlines
Deal found 20/4C$ 1,057

Find flight deals from Region of Waterloo Intl to Illinois

Keep the following information in mind while searching for Region of Waterloo Intl to Illinois flight deals. Data was last updated 25 April 2026.

Round-trip from

C$ 768

One-way from

C$ 192

Popular in

April

Cheapest in

July

Average price

C$ 434
5/6-12/6
  • 5/6-12/6
  • 2 total stops
  • 32h 05m total
  • Toronto to Illinois
Search Deals
Air Canada
  • Air Canada
  • 30/5
  • 1 total stop
  • 8h 55m total
  • Toronto to Illinois
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Region of Waterloo Intl 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 25 April 2026.
Use the filters below to find and compare flights from Toronto Region of Waterloo Intl Airport to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Fri 5/6

8:40 p.m.-5:59 a.m.

2 stops34h 19m

Chicago O'Hare Intl

Fri 12/6

7:15 a.m.-7:50 p.m.

3 stops35h 35m

C$ 827

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Sun 19/7

6:05 a.m.-5:39 p.m.

3 stops36h 34m

Chicago O'Hare Intl

Sun 26/7

5:30 p.m.-5:20 a.m.

1 stop10h 50m

C$ 903

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Tue 16/6

8:40 p.m.-5:59 a.m.

2 stops34h 19m

Chicago O'Hare Intl

Thu 18/6

8:34 p.m.-7:50 p.m.

2 stops22h 16m

C$ 1,046
Quickest round-trip

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Thu 20/8

6:05 a.m.-4:40 p.m.

1 stop11h 35m

Chicago O'Hare Intl

Sun 23/8

5:30 p.m.-5:20 a.m.

1 stop10h 50m

C$ 1,083

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Tue 16/6

8:40 p.m.-5:59 a.m.

2 stops34h 19m

Chicago O'Hare Intl

Tue 23/6

5:06 p.m.-7:50 p.m.

3 stops25h 44m

C$ 1,096

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Sun 30/8

7:05 p.m.-4:40 p.m.

2 stops22h 35m

Chicago O'Hare Intl

Fri 4/9

5:30 p.m.-5:20 a.m.

1 stop10h 50m

C$ 1,104

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Mon 1/6

8:40 p.m.-4:40 p.m.

1 stop21h 00m

Chicago O'Hare Intl

Sun 7/6

5:30 p.m.-7:50 p.m.

1 stop25h 20m

C$ 1,174

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Mon 1/6

8:40 p.m.-4:40 p.m.

1 stop21h 00m

Chicago O'Hare Intl

Sun 7/6

5:30 p.m.-6:20 p.m.

2 stops23h 50m

C$ 1,196

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Fri 10/7

6:05 a.m.-4:40 p.m.

1 stop11h 35m

Chicago O'Hare Intl

Sun 12/7

5:30 p.m.-5:20 a.m.

1 stop10h 50m

C$ 1,222
Cheapest one-way
Quickest one-way

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Thu 2/7

5:30 a.m.-9:00 a.m.

1 stop4h 30m

C$ 209

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/4

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Best time to book a flight from Region of Waterloo Intl to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Region of Waterloo Intl 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 Toronto Region of Waterloo Intl Airport to Illinois
No data available for this route at this time. Please check back soon.

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 25 April 2026.
Check out reviews from past customers who have flown with Air Canada from Toronto Region of Waterloo Intl Airport to Illinois to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,966 reviews
Check prices

Boarding

7.3

Crew

7.8

Overall

7.1

Comfort

7.1

Entertainment

6.8

Food

6.3

Reviews

1 / 20
6.0
Good

Thomas,Apr 2026

YYZ - LHR

Food is sub par. I travel a lot and AC food is not good
Air Canada
7.1
Good
10,966 reviews
Air Canada
7.1
Good
10,966 reviews
Check prices

Boarding

7.3

Crew

7.8

Overall

7.1

Comfort

7.1

Entertainment

6.8

Food

6.3

Reviews

1 / 20
6.0
Good

Thomas,Apr 2026

YYZ - LHR

Food is sub par. I travel a lot and AC food is not good

Related info for your journey

Find useful and relevant information for your journey from Region of Waterloo Intl to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Region of Waterloo Intl to Illinois that include hotel bookings?

    Yes. In addition to deals on Region of Waterloo Intl to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Region of Waterloo Intl to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Region of Waterloo Intl to Illinois.

  • Can I find deals for business class flights from Region of Waterloo Intl to Illinois?

    Yes. Cheapflights offers flight deals from Region of Waterloo Intl 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.

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