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$100+ Cheap flights from Illinois to Ontario

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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YYZ
Nov 5 — Nov 121
Tue 11/5
Tue 11/12
1 adult, Economy
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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 October 31, 2024.

This Mytrip deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/215:35 pmMDW - YTZ
Nonstop1h 42mPorter Airlines
Mon 11/253:50 pmYTZ - MDW
Nonstop1h 50mPorter Airlines
Deal found 10/30$238
This 123 Milhas deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/28:25 pmORD - YUL
1 stop4h 28mAir Canada
Wed 12/49:15 amYUL - ORD
1 stop4h 56mAir Canada
Deal found 10/31$255
This Flybillet deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flybillet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/215:35 pmMDW - YTZ
Nonstop1h 42mMultiple Airlines
Sun 11/243:50 pmYTZ - MDW
Nonstop1h 50mMultiple Airlines
Deal found 10/31$257
This eDestinos deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/38:27 pmORD - YYZ
1 stop26h 28mMultiple Airlines
Sun 12/87:00 amYYZ - ORD
1 stop27h 38mMultiple Airlines
Deal found 10/31$269
This Flightnetwork deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/311:15 amMDW - YUL
1 stop5h 45mPorter Airlines
Wed 12/46:50 amYUL - MDW
1 stop5h 20mPorter Airlines
Deal found 10/30$270
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/127:19 amORD - YYZ
Nonstop1h 39mUnited Airlines
Thu 12/1212:20 pmYYZ - ORD
1 stop7h 16mUnited Airlines
Deal found 10/31$274
This American Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/38:25 pmORD - YUL
1 stop12h 45mAmerican Airlines
Wed 12/412:30 pmYUL - ORD
Nonstop2h 55mAmerican Airlines
Deal found 10/30$277
This Mytrip deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/57:19 amORD - YYZ
Nonstop1h 39mAir Canada
Sun 12/88:00 amYYZ - ORD
Nonstop1h 57mAir Canada
Deal found 10/31$289
This Air Canada deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/262:00 pmORD - YTZ
1 stop5h 43mAir Canada
Tue 12/310:25 amYTZ - ORD
1 stop5h 20mAir Canada
Deal found 10/31$297
This Mytrip deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/35:00 amORD - YTZ
2 stops15h 25mMultiple Airlines
Tue 12/174:30 pmYTZ - ORD
1 stop9h 04mMultiple Airlines
Deal found 10/30$301
This Kiwi.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/35:00 amORD - YUL
1 stop11h 35mMultiple Airlines
Wed 12/44:00 pmYUL - ORD
2 stops9h 34mMultiple Airlines
Deal found 10/31$302
This Kiwi.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/45:02 pmSTL - YYZ
1 stop15h 52mMultiple Airlines
Sun 12/87:40 amYYZ - STL
1 stop8h 41mMultiple Airlines
Deal found 10/31$314

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 2,570,725 searches. Data last updated October 31, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Tue 11/26

11:15 am-4:45 pm

1 stop4h 30m

$113

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 11/20

6:32 pm-9:54 am

1 stop14h 22m

$118

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Tue 12/3

2:05 pm-4:46 pm

Nonstop1h 41m

$122

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 11/26

7:20 am-10:32 am

Nonstop2h 12m

$123

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Tue 12/24

4:50 pm-11:08 pm

1 stop5h 18m

$132

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Wed 12/4

6:30 am-12:24 pm

1 stop4h 54m

$137

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 11/30

7:05 am-12:00 pm

1 stop3h 55m

$157

ChicagoToronto

MDW - YTZ

MDWYTZ

Chicago Midway

Sat 11/16

12:55 pm-3:37 pm

Nonstop1h 42m

$163

ChicagoToronto

MDW - YTZ

MDWYTZ

Chicago Midway

Sun 11/24

11:15 am-1:57 pm

Nonstop1h 42m

$116

ChicagoToronto

ORD - YTZ

ORDYTZ

Chicago O'Hare Intl

Tue 12/3

5:00 am-9:25 pm

2 stops15h 25m

$119

Flights are sorted by cheapest first

Deals found on 10/31

Showing 1-10 of 60 results
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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, January is the cheapest month in which you can book a flight from Illinois to Region of Ontario (average of $242). Flying from Illinois to Region of Ontario in July is currently the most expensive (average of $359). 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 October 31, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Region of Ontario as you normally would.

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 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

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 October 31, 2024.
Read through reviews of airlines operating flights from Illinois to Ontario, such as Air Canada, Delta and WestJet. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,420 reviews

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

7.1

Food

7.2

Reviews

1 / 10

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

Alaska Airlines
8.0
Very good
9,420 reviews
Alaska Airlines
8.0
Very good
9,420 reviews

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

7.1

Food

7.2

Reviews

1 / 10

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

Delta
8.0
Very good
8,835 reviews
Alaska Airlines
8.0
Very good
9,420 reviews

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

7.1

Food

7.2

Reviews

1 / 10

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

Porter Airlines
7.8
Good
294 reviews
Alaska Airlines
8.0
Very good
9,420 reviews

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

7.1

Food

7.2

Reviews

1 / 10

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

Air Transat
7.8
Good
387 reviews
Alaska Airlines
8.0
Very good
9,420 reviews

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

7.1

Food

7.2

Reviews

1 / 10

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

United Airlines
7.4
Good
9,240 reviews
Alaska Airlines
8.0
Very good
9,420 reviews

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

7.1

Food

7.2

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.

  • Can I find flights from Illinois to Region of Ontario for under $300 on Cheapflights?

    Yes, there are multiple flights from Illinois to Region of Ontario for under $300. The cheapest flight booked recently is on Porter Airlines for just $238, but on average you can expect to pay $296.

  • Are there nonstop flights from Illinois to Region of Ontario for under $300 on Cheapflights?

    Cheapflights has at least 17 direct flights from Illinois to Region of Ontario under $300. A good price for a nonstop flight from Illinois to Region of Ontario is less than $422.

  • Are there last-minute flights available from Illinois to Region of Ontario for under $400?

    There are currently 20+ open flights from Illinois to Region of Ontario within the next 7 days for less than $400.

  • What days are nonstop flights available from Illinois to Region of Ontario?

    Days when nonstop flights are available for this flight are: Sunday, Monday, Tuesday, Thursday, Friday, Saturday.

  • How many flights depart from Illinois to Region of Ontario on average per day?

    36 flight departures from Illinois to Region of Ontario per day on average.
    Morning (6am - Noon) - 47% of flight departures
    Afternoon (Noon - 6pm) - 22% of flight departures
    Evening (6pm - Midnight) - 31% of flight departures

  • How long is the flight from Illinois to Region of Ontario?

    There are many flights that can get you from Illinois to Region of Ontario in 1h 39m. Fly via Porter Airlines, United Airlines, or American Airlines to get the fastest option. Airlines will cover a distance of 437 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    $113 is the cheapest one-way deal found within the past few days, from Porter Airlines. You may also be able to find cheap deals on United Airlines and Air Canada, with prices starting from $122 and $123, respectively.

  • What does ORD to YYZ mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Chicago O'Hare Intl Airport to Toronto Pearson Intl Airport flight would often be abbreviated as a ORD to YYZ flight. Ottawa Airport (YOW), Toronto Island Airport (YTZ), London Airport (YXU), Hamilton Airport (YHM), Toronto Region of Waterloo Intl Airport (YKF) are some additional IATA codes for airports related to your trip.

  • Can I find deals for flights from Illinois to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your Illinois to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Illinois to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Illinois to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from Illinois to Ontario that allow pets onboard?

    Many airlines flying from Illinois to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Illinois to Ontario?

    Yes, you can often find last-minute deals on Illinois to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Illinois to Region of Ontario flight deals updated?

    The Illinois to Region of Ontario flight deals you see on this page were last updated on 10/31.

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

    Currently, January is the cheapest month in which you can book a flight from Illinois to Region of Ontario (average of $242). Flying from Illinois to Region of Ontario in July is currently the most expensive (average of $359). 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

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Top 4 airlines flying from Illinois to Ontario

Discover the top 4 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 2,570,725 searches. Data last updated October 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$122Average$305FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$122Average$569FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$129Average$327FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$143Average$561FlexibilityNo cancel feeOn-time69%
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