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Cheap flights from Toronto Region of Waterloo Intl Airport to Illinois from C$ 214

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 26/4. Fares are subject to change and may not be available on all flights or dates of travel.
YKF — ORD
9 Apr — 16 Apr1
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 10 March 2026.

Sun 19/46:10 a.m.
YKF
-
ORD
2 stops36h 50m
Multiple Airlines
Sun 26/45:30 p.m.
ORD
-
YKF
1 stop25h 20m
Multiple Airlines
Deal found 5/3C$ 631
Sat 25/46:20 a.m.
YKF
-
ORD
2 stops24h 15m
Multiple Airlines
Sat 2/56:16 p.m.
ORD
-
YKF
3 stops24h 34m
Multiple Airlines
Deal found 5/3C$ 684
Fri 24/46:05 a.m.
YKF
-
ORD
2 stops24h 45m
Multiple Airlines
Mon 27/45:30 p.m.
ORD
-
YKF
1 stop20h 30m
Multiple Airlines
Deal found 5/3C$ 754
Mon 20/46:20 a.m.
YKF
-
ORD
2 stops35h 40m
Multiple Airlines
Mon 27/45:30 p.m.
ORD
-
YKF
1 stop20h 30m
Multiple Airlines
Deal found 6/3C$ 776
Thu 4/68:40 p.m.
YKF
-
ORD
1 stop21h 00m
WestJet
Mon 8/65:30 p.m.
ORD
-
YKF
1 stop25h 20m
WestJet
Deal found 5/3C$ 890
Fri 1/58:40 p.m.
YKF
-
ORD
2 stops33h 55m
Multiple Airlines
Sun 3/56:16 p.m.
ORD
-
YKF
3 stops24h 34m
Multiple Airlines
Deal found 6/3C$ 950
Mon 8/68:40 p.m.
YKF
-
ORD
1 stop21h 00m
WestJet
Wed 10/65:30 p.m.
ORD
-
YKF
1 stop25h 20m
WestJet
Deal found 9/3C$ 972
Thu 11/68:40 p.m.
YKF
-
ORD
1 stop21h 00m
WestJet
Fri 19/65:30 p.m.
ORD
-
YKF
1 stop25h 20m
WestJet
Deal found 5/3C$ 973
Fri 5/68:40 p.m.
YKF
-
ORD
1 stop21h 00m
WestJet
Mon 8/65:30 p.m.
ORD
-
YKF
1 stop25h 20m
WestJet
Deal found 7/3C$ 992
Fri 22/58:40 p.m.
YKF
-
ORD
1 stop21h 00m
WestJet
Sun 24/55:30 p.m.
ORD
-
YKF
1 stop25h 20m
WestJet
Deal found 8/3C$ 1,020

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 10 March 2026.

Round-trip from

C$ 631

One-way from

C$ 214

Popular in

December

Cheapest in

July

Average price

C$ 358
WestJet
  • WestJet
  • 19/4-26/4
  • 3 total stops
  • 62h 10m total
  • Toronto to Illinois
Search Deals
WestJet
  • WestJet
  • 26/4
  • 1 total stop
  • 21h 00m total
  • Toronto to Illinois
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 10 March 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

Sun 19/4

6:10 a.m.-6:00 p.m.

2 stops36h 50m

Chicago O'Hare Intl

Sun 26/4

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

1 stop25h 20m

C$ 631

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Sat 25/4

6:20 a.m.-11:42 a.m.

3 stops30h 22m

Chicago O'Hare Intl

Sat 2/5

12:53 p.m.-7:50 p.m.

3 stops29h 57m

C$ 738

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Mon 20/4

6:20 a.m.-5:00 p.m.

2 stops35h 40m

Chicago O'Hare Intl

Mon 27/4

5:30 p.m.-3:00 p.m.

1 stop20h 30m

C$ 776

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Thu 4/6

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

1 stop21h 00m

Chicago O'Hare Intl

Mon 8/6

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

1 stop25h 20m

C$ 890

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Fri 1/5

8:40 p.m.-5:35 a.m.

2 stops33h 55m

Chicago O'Hare Intl

Sun 3/5

6:16 p.m.-7:50 p.m.

3 stops24h 34m

C$ 950

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Mon 8/6

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

1 stop21h 00m

Chicago O'Hare Intl

Wed 10/6

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

1 stop25h 20m

C$ 972

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Fri 22/5

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

1 stop21h 00m

Chicago O'Hare Intl

Sun 24/5

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

1 stop25h 20m

C$ 1,020
Quickest round-trip

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Fri 19/6

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

1 stop11h 35m

Chicago O'Hare Intl

Mon 22/6

6:31 p.m.-5:25 a.m.

2 stops33h 54m

C$ 1,163
Cheapest one-way
Quickest one-way

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Sat 25/7

1:15 p.m.-4:57 p.m.

1 stop4h 42m

C$ 282

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Wed 10/6

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

1 stop21h 00m

C$ 343

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/3

Showing 1-10 of 17 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 10 March 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
10,800 reviews
Check prices

Entertainment

6.8

Boarding

7.3

Comfort

7.1

Overall

7.1

Food

6.3

Crew

7.8

Reviews

1 / 20
2.0
Mediocre

Sugith,Jan 2026

YYZ - YSB

8 am flight cancelled at 2 am. Rebooked next day. Had to pay to rebook myself on Porter to leave same day.
Air Canada
7.1
Good
10,800 reviews
Air Canada
7.1
Good
10,800 reviews
Check prices

Entertainment

6.8

Boarding

7.3

Comfort

7.1

Overall

7.1

Food

6.3

Crew

7.8

Reviews

1 / 20
2.0
Mediocre

Sugith,Jan 2026

YYZ - YSB

8 am flight cancelled at 2 am. Rebooked next day. Had to pay to rebook myself on Porter to leave same day.

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.

  • How long is the flight from Toronto Region of Waterloo Intl Airport to Illinois?

    A quick flight from Toronto Region of Waterloo Intl Airport to Illinois can take about 21h. WestJet provides one of the quickest options available for as low as C$ 890. There are 636 km between Toronto Region of Waterloo Intl Airport and Illinois.

  • 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.

See more FAQs

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Alternative routes for Region of Waterloo Intl to Illinois

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