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Cheap flights from Illinois to Ontario from C$ 169

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 13/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YYZ
25 Nov — 2 Dec1
1 adult

Find flights from Illinois to Ontario within your budget

Customize your flight search to find flights from Illinois to Ontario 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 645,034 searches. Data last updated 20 November 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoToronto

MDW - YTZ

MDWYTZ

Chicago Midway

Tue 24/12

11:15 a.m.-1:57 p.m.

Nonstop1h 42m

Toronto Island

Tue 31/12

9:30 a.m.-10:20 a.m.

Nonstop1h 50m

C$ 354

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Wed 18/12

12:52 p.m.-3:45 p.m.

Nonstop1h 53m

Toronto Pearson Intl

Wed 25/12

8:00 a.m.-8:57 a.m.

Nonstop1h 57m

C$ 391

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 12/12

7:19 a.m.-9:58 a.m.

Nonstop1h 39m

Toronto Pearson Intl

Thu 12/12

12:20 p.m.-6:36 p.m.

1 stop7h 16m

C$ 399

ChicagoToronto

ORD - YTZ

ORDYTZ

Chicago O'Hare Intl

Thu 12/12

7:20 a.m.-2:50 p.m.

1 stop6h 30m

Toronto Island

Sun 15/12

8:50 a.m.-12:58 p.m.

1 stop5h 08m

C$ 400

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 12/12

10:51 a.m.-1:42 p.m.

Nonstop1h 51m

Toronto Pearson Intl

Sun 15/12

11:00 a.m.-11:59 a.m.

Nonstop1h 59m

C$ 403

ChicagoToronto

MDW - YTZ

MDWYTZ

Chicago Midway

Sat 21/12

5:35 p.m.-8:17 p.m.

Nonstop1h 42m

Toronto Island

Tue 31/12

9:30 a.m.-10:20 a.m.

Nonstop1h 50m

C$ 406

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Wed 18/12

10:22 p.m.-1:55 p.m.

2 stops14h 33m

Toronto Pearson Intl

Tue 31/12

7:00 a.m.-7:47 a.m.

1 stop25h 47m

C$ 406

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Wed 18/12

10:50 a.m.-1:55 p.m.

1 stop26h 05m

Toronto Pearson Intl

Tue 31/12

7:00 a.m.-10:33 p.m.

1 stop16h 33m

C$ 412

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Fri 24/1

8:30 a.m.-12:45 a.m.

1 stop15h 15m

Montreal Pierre Elliott Trudeau Intl

Sun 26/1

3:55 p.m.-10:02 a.m.

1 stop19h 07m

C$ 417

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 3/12

8:25 p.m.-10:10 a.m.

1 stop12h 45m

Montreal Pierre Elliott Trudeau Intl

Wed 4/12

12:30 p.m.-2:25 p.m.

Nonstop2h 55m

C$ 431

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/11

Showing 1-10 of 60 results
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Cheap flight deals from Illinois to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Ontario (CAON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 20 November 2024.

Find flight deals from Illinois to Ontario

Cheapest flights from Illinois to Ontario
Explore the most affordable flight options available from Illinois to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 November 2024.

Tue 24/1211:15 a.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Tue 31/129:30 a.m.YTZ - MDW
Nonstop1h 50mPorter Airlines
Deal found 18/11C$ 354
Wed 18/1212:52 p.m.ORD - YYZ
Nonstop1h 53mAir Canada
Wed 25/128:00 a.m.YYZ - ORD
Nonstop1h 57mAir Canada
Deal found 18/11C$ 391
Thu 12/127:19 a.m.ORD - YYZ
Nonstop1h 39mUnited Airlines
Thu 12/1212:20 p.m.YYZ - ORD
1 stop7h 16mUnited Airlines
Deal found 20/11C$ 399
Thu 12/127:20 a.m.ORD - YTZ
1 stop6h 30mAir Canada
Sun 15/128:50 a.m.YTZ - ORD
1 stop5h 08mAir Canada
Deal found 19/11C$ 400
Thu 12/1210:51 a.m.ORD - YYZ
Nonstop1h 51mLufthansa
Sun 15/1211:00 a.m.YYZ - ORD
Nonstop1h 59mLufthansa
Deal found 20/11C$ 403
Sat 21/125:35 p.m.MDW - YTZ
Nonstop1h 42mMultiple Airlines
Tue 31/129:30 a.m.YTZ - MDW
Nonstop1h 50mMultiple Airlines
Deal found 19/11C$ 406
Wed 18/1210:22 p.m.ORD - YYZ
2 stops14h 33mMultiple Airlines
Tue 31/127:00 a.m.YYZ - ORD
1 stop25h 47mMultiple Airlines
Deal found 19/11C$ 406
Wed 18/1210:50 a.m.MDW - YYZ
1 stop26h 05mMultiple Airlines
Tue 31/127:00 a.m.YYZ - MDW
1 stop16h 33mMultiple Airlines
Deal found 19/11C$ 412
Tue 3/128:25 p.m.ORD - YUL
1 stop12h 45mAmerican Airlines
Wed 4/1212:30 p.m.YUL - ORD
Nonstop2h 55mAmerican Airlines
Deal found 19/11C$ 431
Tue 10/126:37 p.m.ORD - YTZ
2 stops17h 21mMultiple Airlines
Thu 12/128:25 a.m.YTZ - ORD
1 stop7h 20mMultiple Airlines
Deal found 19/11C$ 431
Thu 12/128:02 a.m.ORD - YYZ
1 stop7h 38mBritish Airways
Sun 15/1212:36 p.m.YYZ - ORD
1 stop8h 28mBritish Airways
Deal found 20/11C$ 434
Tue 3/125:02 p.m.STL - YYZ
1 stop20h 22mMultiple Airlines
Wed 4/128:00 p.m.YYZ - STL
2 stops20h 21mMultiple Airlines
Deal found 20/11C$ 441

Best time to book a flight from Illinois to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Illinois 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.

Travel insights for flights from Illinois to Ontario

Get recent, data-driven insights about flights from Illinois to Ontario including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Illinois to Region of Ontario?

Currently, October is the cheapest month in which you can book a flight from Illinois to Region of Ontario (average of C$ 178). Flying from Illinois to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 IL to ON?

Find hourly flight availability from Illinois to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 November 2024.

When flying from Illinois to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Illinois to Region of Ontario

Explore weekly flight availability from Illinois to Ontario. 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 20 November 2024.

The most flights from USIL to CAON are scheduled on a Monday (56 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (45 on average).

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated 20 November 2024.
Read through reviews of airlines operating flights from Illinois to Ontario, such as Air Canada, United Airlines and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,461 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.1

Boarding

8.2

Food

7.2

Overall

8.0

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Alaska Airlines
8.0
Very good
9,461 reviews
Alaska Airlines
8.0
Very good
9,461 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.1

Boarding

8.2

Food

7.2

Overall

8.0

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Delta
8.0
Very good
8,756 reviews
Alaska Airlines
8.0
Very good
9,461 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.1

Boarding

8.2

Food

7.2

Overall

8.0

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Porter Airlines
7.8
Good
288 reviews
Alaska Airlines
8.0
Very good
9,461 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.1

Boarding

8.2

Food

7.2

Overall

8.0

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Air Transat
7.8
Good
389 reviews
Alaska Airlines
8.0
Very good
9,461 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.1

Boarding

8.2

Food

7.2

Overall

8.0

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

United Airlines
7.4
Good
9,171 reviews
Alaska Airlines
8.0
Very good
9,461 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.1

Boarding

8.2

Food

7.2

Overall

8.0

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Related info for your journey

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

  • What are the cheapest airlines to fly from Illinois to Region of Ontario one-way?

    One-way options have recently been found by users for as low as C$ 169 on Porter Airlines. Other airlines that offer cheap prices include United Airlines from C$ 178 and Air Canada from C$ 185 one-way.

  • Can I find deals for flights from Illinois to Ontario that include hotel bookings?

    Yes. In addition to deals on Illinois to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Ontario?

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

  • Can I find deals for business class flights from Illinois to Ontario?

    Yes. Cheapflights offers flight deals from Illinois to Ontario 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 Illinois to Region of Ontario?

    Currently, October is the cheapest month in which you can book a flight from Illinois to Region of Ontario (average of C$ 178). Flying from Illinois to Region of Ontario in July is currently the most expensive (average of C$ 258). 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.

See more FAQs

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Alternative routes for Illinois to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Newark to Toronto Island flights
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Fort Lauderdale to Pearson Intl flights
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Top 3 airlines flying from Illinois to Ontario

Discover the top 3 airlines that operate flights from Illinois to Ontario. 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 645,034 searches. Data last updated 20 November 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 184AverageC$ 471FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 198AverageC$ 483FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 305AverageC$ 426FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights

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 Illinois to Ontario?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ontario from Illinois today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Illinois to Ontario?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from Illinois.

Can Cheapflights find flights from Illinois to Ontario with no change fees?

Yes! Cheapflights helps users easily find flights from Illinois to Ontario with no change fees.

Can Cheapflights notify me if prices for flights from Illinois to Ontario become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ontario from Illinois today and book when prices fit your budget.

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