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Cheap flights from Toronto Region of Waterloo Intl Airport to Illinois from C$ 188

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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
YKF — ORD
4 Aug — 11 Aug1
1 adult

Cheap 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 30 July 2025.

Round-trip from

C$ 450

One-way from

C$ 188

Popular in

December

Cheapest in

June

Average price

C$ 372
WestJet
  • WestJet
  • 11/9-18/9
  • 2 total stops
  • 41h 58m total
  • Toronto to Illinois
Search Deals
6/10
  • 6/10
  • 1 total stop
  • 11h 43m total
  • Toronto to Illinois
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Region of Waterloo Intl to Illinois

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 30 July 2025.

Thu 11/96:00 a.m.YKF - ORD
1 stop11h 43mWestJet
Thu 18/95:30 p.m.ORD - YKF
1 stop30h 15mWestJet
Deal found 28/7C$ 450
Wed 27/86:00 a.m.YKF - ORD
2 stops24h 40mMultiple Airlines
Wed 3/91:40 p.m.ORD - YKF
1 stop14h 50mMultiple Airlines
Deal found 30/7C$ 457

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 30 July 2025.
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

Region of Waterloo Intl

Fly to

Illinois

Route

Depart

Return

Price

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Thu 11/9

6:00 a.m.-4:43 p.m.

1 stop11h 43m

Chicago O'Hare Intl

Thu 18/9

5:30 p.m.-12:45 a.m.

1 stop30h 15m

C$ 450

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Wed 27/8

6:00 a.m.-5:40 a.m.

2 stops24h 40m

Chicago O'Hare Intl

Wed 3/9

1:40 p.m.-5:30 a.m.

1 stop14h 50m

C$ 457

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Mon 6/10

6:00 a.m.-4:43 p.m.

1 stop11h 43m

C$ 188

TorontoChicago

YKF - ORD

YKFORD

Toronto Region of Waterloo Intl

Fri 26/9

6:00 a.m.-4:43 p.m.

1 stop11h 43m

C$ 215

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/7

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 30 July 2025.
Check out reviews from past customers who have flown with WestJet 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.
WestJet
7.2
Good
2,975 reviews
Check prices

Comfort

7.0

Overall

7.2

Food

6.2

Entertainment

6.1

Boarding

7.4

Crew

7.9

Reviews

1 / 20
6.0
Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight
WestJet
7.2
Good
2,975 reviews
WestJet
7.2
Good
2,975 reviews
Check prices

Comfort

7.0

Overall

7.2

Food

6.2

Entertainment

6.1

Boarding

7.4

Crew

7.9

Reviews

1 / 20
6.0
Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight

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.

  • What is the cheapest month to book a flight from Toronto Region of Waterloo Intl Airport to Illinois?

    Currently, January is the cheapest month in which you can book a flight from Toronto Region of Waterloo Intl Airport to Illinois (average of C$ 261). Flying from Toronto Region of Waterloo Intl Airport 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.

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Top airline flying from Region of Waterloo Intl to Illinois

Discover the top airline that operate flights from Region of Waterloo Intl 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 30 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 329AverageC$ 405FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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