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$121+ Cheap flights from Chicago (CHI) 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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — YYZ
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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Cheap flight deals from Chicago to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) 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 November 20, 2024.

Find flight deals from Chicago to Ontario

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

This Booking.com deal was found by Cheapflights users on 11/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2411:15 amMDW - YTZ
Nonstop1h 42mPorter Airlines
Tue 12/319:30 amYTZ - MDW
Nonstop1h 50mPorter Airlines
Deal found 11/18$253
This Air Canada deal was found by Cheapflights users on 11/18. 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.
Wed 12/1812:52 pmORD - YYZ
Nonstop1h 53mAir Canada
Wed 12/258:00 amYYZ - ORD
Nonstop1h 57mAir Canada
Deal found 11/18$279
This United Airlines deal was found by Cheapflights users on 11/20. 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 11/20$285
This Booking.com deal was found by Cheapflights users on 11/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/127:20 amORD - YTZ
1 stop6h 30mAir Canada
Sun 12/158:50 amYTZ - ORD
1 stop5h 08mAir Canada
Deal found 11/19$286
This Kissandfly.com deal was found by Cheapflights users on 11/20. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1210:51 amORD - YYZ
Nonstop1h 51mLufthansa
Sun 12/1511:00 amYYZ - ORD
Nonstop1h 59mLufthansa
Deal found 11/20$288
This Priceline deal was found by Cheapflights users on 11/19. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/215:35 pmMDW - YTZ
Nonstop1h 42mMultiple Airlines
Tue 12/319:30 amYTZ - MDW
Nonstop1h 50mMultiple Airlines
Deal found 11/19$290
This eDestinos deal was found by Cheapflights users on 11/19. 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.
Wed 12/1810:22 pmORD - YYZ
2 stops14h 33mMultiple Airlines
Tue 12/317:00 amYYZ - ORD
1 stop25h 47mMultiple Airlines
Deal found 11/19$290
This eDestinos deal was found by Cheapflights users on 11/19. 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.
Wed 12/1810:50 amMDW - YYZ
1 stop26h 05mMultiple Airlines
Tue 12/317:00 amYYZ - MDW
1 stop16h 33mMultiple Airlines
Deal found 11/19$294
This American Airlines deal was found by Cheapflights users on 11/19. 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 11/19$308
This Kissandfly.com deal was found by Cheapflights users on 11/20. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/128:02 amORD - YYZ
1 stop7h 38mBritish Airways
Sun 12/1512:36 pmYYZ - ORD
1 stop8h 28mBritish Airways
Deal found 11/20$310
This Trip.com deal was found by Cheapflights users on 11/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1210:10 amORD - YYZ
1 stop5h 27mWestJet
Sun 12/156:30 amYYZ - ORD
1 stop6h 09mWestJet
Deal found 11/19$321
This Mytrip deal was found by Cheapflights users on 11/19. 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 12/106:37 pmORD - YTZ
1 stop15h 03mMultiple Airlines
Wed 12/113:00 pmYTZ - ORD
1 stop10h 34mMultiple Airlines
Deal found 11/19$323

Find flights from Chicago to Ontario within your budget

Customize your flight search to find flights from Chicago 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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoToronto

MDW - YTZ

MDWYTZ

Chicago Midway

Tue 12/24

11:15 am-1:57 pm

Nonstop1h 42m

Toronto Island

Tue 12/31

9:30 am-10:20 am

Nonstop1h 50m

$253

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Wed 12/18

12:52 pm-3:45 pm

Nonstop1h 53m

Toronto Pearson Intl

Wed 12/25

8:00 am-8:57 am

Nonstop1h 57m

$279

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 12/12

7:19 am-9:58 am

Nonstop1h 39m

Toronto Pearson Intl

Thu 12/12

12:20 pm-6:36 pm

1 stop7h 16m

$285

ChicagoToronto

ORD - YTZ

ORDYTZ

Chicago O'Hare Intl

Thu 12/12

7:20 am-2:50 pm

1 stop6h 30m

Toronto Island

Sun 12/15

8:50 am-12:58 pm

1 stop5h 08m

$286

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 12/12

10:51 am-1:42 pm

Nonstop1h 51m

Toronto Pearson Intl

Sun 12/15

11:00 am-11:59 am

Nonstop1h 59m

$288

ChicagoToronto

MDW - YTZ

MDWYTZ

Chicago Midway

Sat 12/21

5:35 pm-8:17 pm

Nonstop1h 42m

Toronto Island

Tue 12/31

9:30 am-10:20 am

Nonstop1h 50m

$290

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Wed 12/18

10:22 pm-1:55 pm

2 stops14h 33m

Toronto Pearson Intl

Tue 12/31

7:00 am-7:47 am

1 stop25h 47m

$290

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Wed 12/18

10:50 am-1:55 pm

1 stop26h 05m

Toronto Pearson Intl

Tue 12/31

7:00 am-10:33 pm

1 stop16h 33m

$294

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Fri 1/24

8:30 am-12:45 am

1 stop15h 15m

Montreal Pierre Elliott Trudeau Intl

Sun 1/26

3:55 pm-10:02 am

1 stop19h 07m

$298

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 12/3

8:25 pm-10:10 am

1 stop12h 45m

Montreal Pierre Elliott Trudeau Intl

Wed 12/4

12:30 pm-2:25 pm

Nonstop2h 55m

$308

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 60 results
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Best time to book a flight from Chicago to Ontario

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

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

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

Currently, January is the cheapest month in which you can book a flight from Chicago to Region of Ontario (average of $242). Flying from Chicago 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 CHI to ON?

Find hourly flight availability from Chicago 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 November 20, 2024.

When flying from Chicago 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 Chicago to Region of Ontario

Explore weekly flight availability from Chicago 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 November 20, 2024.

The most flights from CHI 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 (46 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 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 November 20, 2024.
Read through reviews of airlines operating flights from Chicago to Ontario, such as Air Canada, American Airlines and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,756 reviews
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Porter Airlines
7.8
Good
288 reviews
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Transat
7.8
Good
389 reviews
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Aeromexico
7.5
Good
2,004 reviews
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
9,171 reviews
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Chicago 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 Chicago to Region of Ontario one-way?

    To fly one-way, consider booking your trip with Porter Airlines, which is currently one of the cheapest options available, starting at $121. United Airlines flights start at $127 while deals on Air Canada start at $132 one-way.

  • What are the most popular routes from Chicago to Region of Ontario?

    Most travelers choose Chicago O'Hare Intl - Toronto Pearson Intl, Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl or Chicago O'Hare Intl - Toronto Island when deciding on the best route from Chicago to Region of Ontario.

  • What are the most reliable airlines from Chicago to Region of Ontario?

    Consider Cathay Pacific (100%), Jazz (100%) or Republic Airways (96%) when booking your flight. These represent the most reliable airlines when flying from Chicago to Region of Ontario.

  • What are the cheapest flights from Chicago to Region of Ontario?

    Looking at all options, your cheapest flight can be booked for $122. While the most popular route (Chicago O'Hare Intl - Toronto Pearson Intl) can be booked for $274 on average our data indicates $691 when flying from Chicago to Region of Ontario.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Chicago to Region of Ontario (average of $242). Flying from Chicago 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.

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Alternative routes for Chicago to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Chicago to Ontario

Discover the top 4 airlines that operate flights from Chicago 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$121Average$557FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$122Average$314FlexibilityNo cancel feeOn-time52%
American AirlinesCheapest$122Average$312FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$145Average$553FlexibilityNo cancel feeOn-time69%
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