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O'Hare Intl

$129+ Cheap flights from Ontario to O'Hare Intl (ORD)

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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Ontario to O'Hare Intl

Keep the following information in mind while searching for Ontario to O'Hare Intl flight deals. Data was last updated September 16, 2025.

Round-trip from

$196
(Kiwi.com)

One-way from

$129
(Mytrip)

Popular in

December

Cheapest in

July

Average price

$254

Good round-trip deal

$374 or less

Good one-way deal

$245 or less
From Ontario to Chicago O'Hare Intl
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One-way flight from Ontario to Chicago O'Hare Intl
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Highest demand for flights based on searches. 8% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Ontario to Chicago O'Hare Intl.
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Price to beat on a one-way flight from Ontario to Chicago O'Hare Intl.
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Find flight deals from Ontario to O'Hare Intl

Cheapest flights from Ontario to O'Hare Intl
Explore the most affordable flight options available from Ontario to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Mon 10/204:00 pmYYZ - ORD
1 stop8h 44mMultiple Airlines
Thu 10/2312:53 pmORD - YYZ
1 stop7h 14mMultiple Airlines
Deal found 9/14$196
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Mon 10/204:00 pmYYZ - ORD
1 stop8h 44mMultiple Airlines
Wed 10/227:43 pmORD - YYZ
1 stop17h 22mMultiple Airlines
Deal found 9/15$199
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Sun 10/194:00 pmYYZ - ORD
1 stop24h 49mMultiple Airlines
Thu 10/237:43 pmORD - YYZ
1 stop17h 22mMultiple Airlines
Deal found 9/15$202
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Mon 10/204:00 pmYYZ - ORD
1 stop8h 44mMultiple Airlines
Thu 10/307:06 pmORD - YYZ
1 stop25h 01mMultiple Airlines
Deal found 9/14$204
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Mon 11/34:00 pmYYZ - ORD
1 stop7h 39mMultiple Airlines
Thu 11/66:06 pmORD - YYZ
1 stop26h 01mMultiple Airlines
Deal found 9/15$205
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Mon 10/134:00 pmYYZ - ORD
1 stop8h 44mMultiple Airlines
Thu 10/237:43 pmORD - YYZ
1 stop17h 22mMultiple Airlines
Deal found 9/15$206
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Sun 10/194:00 pmYYZ - ORD
1 stop24h 49mMultiple Airlines
Fri 10/245:05 amORD - YYZ
1 stop8h 00mMultiple Airlines
Deal found 9/14$210
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Mon 10/134:00 pmYYZ - ORD
1 stop8h 44mMultiple Airlines
Thu 11/66:06 pmORD - YYZ
1 stop26h 01mMultiple Airlines
Deal found 9/15$211
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Mon 10/204:00 pmYYZ - ORD
1 stop8h 44mMultiple Airlines
Sun 11/96:10 pmORD - YYZ
1 stop25h 57mMultiple Airlines
Deal found 9/14$214
This Mytrip deal was found by Cheapflights users on 9/13. 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.
Wed 10/296:15 pmYUL - ORD
Nonstop2h 45mAir Canada
Wed 11/57:15 amORD - YUL
Nonstop2h 05mAir Canada
Deal found 9/13$241
This Mytrip deal was found by Cheapflights users on 9/14. 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.
Sat 10/183:25 pmYTZ - ORD
1 stop5h 52mAir Canada
Sat 10/258:40 amORD - YTZ
1 stop5h 05mAir Canada
Deal found 9/14$251
This Trip.com deal was found by Cheapflights users on 9/15. 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.
Sat 11/16:15 pmYUL - ORD
Nonstop2h 45mAir Canada
Fri 11/712:50 pmORD - YUL
Nonstop2h 07mAir Canada
Deal found 9/15$255

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to O'Hare Intl 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 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Ontario to Chicago O'Hare Intl Airport that are best for you.

Fly from

Ontario

Fly to

O'Hare Intl

Route

Depart

Return

Price

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Fri 10/31

12:50 pm-9:33 pm

1 stop9h 43m

Chicago O'Hare Intl

Fri 11/7

5:59 pm-2:40 pm

1 stop19h 41m

$250

TorontoChicago

YTZ - ORD

YTZORD

Toronto Island

Sat 10/18

3:25 pm-8:17 pm

1 stop5h 52m

Chicago O'Hare Intl

Sat 10/25

8:40 am-2:45 pm

1 stop5h 05m

$251

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sat 10/25

6:00 am-4:43 pm

1 stop11h 43m

Chicago O'Hare Intl

Sun 10/26

2:20 pm-5:17 pm

1 stop25h 57m

$256

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Fri 10/17

6:00 am-4:43 pm

1 stop11h 43m

Chicago O'Hare Intl

Sun 10/26

2:20 pm-5:17 pm

1 stop25h 57m

$257

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 11/21

6:00 am-8:00 am

Nonstop3h 00m

Chicago O'Hare Intl

Thu 11/27

5:55 pm-9:17 pm

Nonstop2h 22m

$260

TorontoChicago

YTZ - ORD

YTZORD

Toronto Island

Sat 10/4

3:25 pm-8:06 pm

1 stop5h 41m

Chicago O'Hare Intl

Mon 10/6

8:40 am-4:45 pm

1 stop7h 05m

$265

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Sun 10/12

3:35 pm-8:23 pm

1 stop5h 48m

Chicago O'Hare Intl

Tue 10/14

7:10 am-11:20 am

1 stop3h 10m

$268

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Wed 10/29

6:00 am-8:00 am

Nonstop3h 00m

Chicago O'Hare Intl

Wed 11/5

1:00 pm-7:48 pm

1 stop5h 48m

$270

HamiltonChicago

YHM - ORD

YHMORD

Hamilton

Sun 10/12

6:00 am-4:43 pm

1 stop11h 43m

Chicago O'Hare Intl

Sun 10/19

5:30 pm-12:40 am

1 stop30h 10m

$274

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Sat 10/11

5:15 pm-6:22 pm

Nonstop2h 07m

Chicago O'Hare Intl

Wed 10/15

8:25 pm-11:08 pm

Nonstop1h 43m

$275

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Ontario 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 Ontario to Chicago O'Hare Intl Airport

What is the cheapest month to book a flight from Region of Ontario to Chicago O'Hare Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Region of Ontario to Chicago O'Hare Intl Airport (average of $245). Flying from Region of Ontario to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 ON to ORD?

Find hourly flight availability from Ontario to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

When flying from Region of Ontario to Chicago O'Hare Intl Airport, 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 Region of Ontario to Chicago O'Hare Intl Airport

Explore weekly flight availability from Ontario to O'Hare Intl. 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 September 16, 2025.

The most flights from CAON to ORD are scheduled on a Monday (62 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (43 on average).

How much does it cost to fly round-trip from Region of Ontario to Chicago O'Hare Intl Airport?

Related info for your journey

Find useful and relevant information for your journey from Ontario to O'Hare Intl. 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 Region of Ontario to Chicago O'Hare Intl Airport?

    There are many flights that can get you from Region of Ontario to Chicago O'Hare Intl Airport in 3h. Fly via Air Canada, WestJet, or United Airlines to get the fastest option. Airlines will cover a distance of 745 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Region of Ontario to Chicago O'Hare Intl Airport one-way?

    The cheapest airlines for a one-way flight from Region of Ontario to Chicago O'Hare Intl Airport are WestJet ($142), Air Canada ($155), and United Airlines ($157).

  • What are the most popular routes from Region of Ontario to Chicago O'Hare Intl Airport?

    The most popular route from Region of Ontario to Chicago O'Hare Intl Airport is Toronto Pearson Intl - Chicago O'Hare Intl. You may also consider Montreal Pierre Elliott Trudeau Intl - Chicago O'Hare Intl or Toronto Island - Chicago O'Hare Intl.

  • What are the most reliable airlines from Region of Ontario to Chicago O'Hare Intl Airport?

    Before booking your flight to Chicago O'Hare Intl Airport from Region of Ontario, check out the most reliable airlines to get you to your destination on time: EVA Air (88%), Egyptair (85%), Copa Airlines( 85%).

  • What are the cheapest flights from Region of Ontario to Chicago O'Hare Intl Airport?

    On average you can expect to pay $1,139 for a flight from Region of Ontario to Chicago O'Hare Intl Airport. The cheapest flight overall is $126 while the most popular route, (Toronto Pearson Intl - Chicago O'Hare Intl) is currently priced at $199.

  • Can I find deals for flights from Ontario to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Ontario to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to O'Hare Intl?

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

  • Can I find deals for business class flights from Ontario to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Ontario to O'Hare Intl 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 Region of Ontario to Chicago O'Hare Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Region of Ontario to Chicago O'Hare Intl Airport (average of $245). Flying from Region of Ontario to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Skokie
Gurnee
Hoffman Estates
Des Plaines
Elgin
Arlington Heights
Orland Park
Beloit
Racine
Rockford
Oak Brook
Elk Grove Village
Downers Grove
Naperville
Evanston
Merrillville
Bridgeview
Warrenville

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Alternative routes for Ontario to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Calgary to Midway flights
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Edmonton to Midway flights
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Victoria to Midway flights
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Kelowna to O'Hare Intl flights
St. John's to Midway flights
London to Midway flights
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St John to O'Hare Intl flights

Top 3 airlines flying from Ontario to O'Hare Intl

Discover the top 3 airlines that operate flights from Ontario to O'Hare Intl. 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 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$146Average$411FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$165Average$402FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$196Average$341FlexibilityNo cancel feeOn-time71%

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