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O'Hare Intl

$113+ 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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheap 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 February 3, 2026.

This Air Canada deal was found by Cheapflights users on 2/2. 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.
Mon 2/236:25 pm
YUL
-
ORD
Nonstop2h 45m
Air Canada
Wed 2/2512:50 pm
ORD
-
YUL
Nonstop2h 11m
Air Canada
Deal found 2/2$177
This Air Canada deal was found by Cheapflights users on 2/2. 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 2/246:25 pm
YUL
-
ORD
Nonstop2h 45m
Air Canada
Wed 3/43:35 pm
ORD
-
YUL
Nonstop2h 05m
Air Canada
Deal found 2/2$178
This TravelUp deal was found by Cheapflights users on 2/1. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/86:30 pm
YUL
-
ORD
Nonstop2h 38m
Air Canada
Fri 5/158:45 am
ORD
-
YUL
Nonstop2h 15m
Air Canada
Deal found 2/1$185
This Trip.com deal was found by Cheapflights users on 2/3. 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 2/266:40 pm
YYZ
-
ORD
Nonstop2h 05m
Air Canada
Sun 3/18:40 pm
ORD
-
YYZ
Nonstop1h 40m
Air Canada
Deal found 2/3$193
This Trip.com deal was found by Cheapflights users on 2/2. 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.
Tue 2/244:50 pm
YYZ
-
ORD
Nonstop1h 58m
Air Canada
Fri 3/278:40 pm
ORD
-
YYZ
Nonstop1h 39m
Air Canada
Deal found 2/2$197
This Air Canada deal was found by Cheapflights users on 2/3. 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.
Sat 6/66:25 pm
YYZ
-
ORD
Nonstop2h 00m
Air Canada
Tue 6/99:55 am
ORD
-
YYZ
Nonstop1h 40m
Air Canada
Deal found 2/3$200
This United Airlines deal was found by Cheapflights users on 2/2. 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 3/129:00 pm
YYZ
-
ORD
Nonstop2h 04m
United Airlines
Mon 3/166:25 pm
ORD
-
YYZ
Nonstop1h 53m
United Airlines
Deal found 2/2$202
This Kissandfly.com deal was found by Cheapflights users on 2/2. 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 2/268:45 am
YYZ
-
ORD
Nonstop2h 05m
Lufthansa
Sun 3/16:28 pm
ORD
-
YYZ
Nonstop1h 53m
Lufthansa
Deal found 2/2$204
This Air Canada deal was found by Cheapflights users on 2/2. 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.
Thu 4/169:15 am
YUL
-
ORD
Nonstop2h 38m
Air Canada
Thu 4/238:40 am
ORD
-
YUL
Nonstop2h 11m
Air Canada
Deal found 2/2$206
This Delta deal was found by Cheapflights users on 2/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/236:00 pm
YUL
-
ORD
1 stop6h 56m
Delta
Wed 2/255:25 am
ORD
-
YUL
1 stop10h 28m
Delta
Deal found 2/2$209
This American Airlines deal was found by Cheapflights users on 2/3. 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.
Sat 2/286:17 pm
YYZ
-
ORD
Nonstop2h 00m
American Airlines
Wed 4/111:55 am
ORD
-
YYZ
1 stop8h 42m
American Airlines
Deal found 2/3$211
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Wed 2/256:00 am
YYZ
-
ORD
Nonstop2h 15m
American Airlines
Wed 2/251:40 pm
ORD
-
YYZ
1 stop8h 15m
American Airlines
Deal found 2/1$212

Find 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 February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$177
(Air Canada)

One-way from

$113
(SmartFares)

Popular in

January

Cheapest in

July

Average price

$272

Good round-trip deal

$302 or less

Good one-way deal

$214 or less
Provider with most accurate pricing for Toronto (YTO)-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Toronto (YTO)-Chicago (CHI) flights.
Search Deals
From Ontario to Chicago O'Hare Intl
Search Deals
One-way flight from Ontario to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Ontario to Chicago O'Hare Intl.
Search Deals
Price to beat on a one-way flight from Ontario to Chicago O'Hare Intl.
Search Deals

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 February 3, 2026.
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

Wed 4/1

8:50 am-9:50 am

Nonstop2h 00m

Chicago O'Hare Intl

Sun 4/5

7:04 am-9:54 am

Nonstop1h 50m

$202

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Sat 3/28

8:45 am-9:50 am

Nonstop2h 05m

Chicago O'Hare Intl

Sat 4/4

9:15 pm-11:59 pm

Nonstop1h 44m

$202

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 4/16

1:20 pm-2:55 pm

Nonstop2h 35m

Chicago O'Hare Intl

Fri 4/24

8:40 am-11:51 am

Nonstop2h 11m

$206

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Wed 4/15

12:50 pm-8:16 pm

1 stop8h 26m

Chicago O'Hare Intl

Fri 4/24

5:10 am-11:38 am

1 stop5h 28m

$217

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 4/16

6:45 pm-11:59 pm

1 stop6h 14m

Chicago O'Hare Intl

Thu 4/23

8:15 am-5:35 pm

1 stop8h 20m

$217

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Wed 4/15

12:55 pm-4:18 pm

1 stop4h 23m

Chicago O'Hare Intl

Thu 4/23

1:36 pm-11:08 pm

1 stop8h 32m

$217

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Tue 4/14

6:00 am-12:45 pm

1 stop7h 45m

Chicago O'Hare Intl

Wed 4/22

5:10 am-11:38 am

1 stop5h 28m

$217

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Wed 4/15

12:55 pm-4:18 pm

1 stop4h 23m

Chicago O'Hare Intl

Wed 4/22

9:35 am-6:51 pm

1 stop8h 16m

$217

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 4/17

12:44 pm-9:25 pm

1 stop9h 41m

Chicago O'Hare Intl

Tue 4/21

7:10 am-1:39 pm

1 stop5h 29m

$217

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Mon 4/13

6:45 pm-11:59 pm

1 stop6h 14m

Chicago O'Hare Intl

Tue 4/21

5:04 pm-11:08 pm

1 stop5h 04m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

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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, April is the cheapest month in which you can book a flight from Region of Ontario to Chicago O'Hare Intl Airport (average of $82). Flying from Region of Ontario to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $193). 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 February 3, 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 14% on flights from Region of Ontario to Chicago O'Hare Intl Airport by exploring options for tickets at noon.

What is the cheapest day to fly from Region of Ontario to Chicago O'Hare Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Ontario to O'Hare Intl. Price data was last updated on January 31, 2026.

Travelers seeking maximum savings on their Region of Ontario to Chicago O'Hare Intl Airport flight should consider departing on Friday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 February 3, 2026.

The most flights from CAON to ORD are scheduled on a Monday (62 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (37 on average).

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 1h 55m. Fly via Air Canada or Delta to get the fastest option. Airlines will cover a distance of 436 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 Air Canada ($108), United Airlines ($109), and Porter Airlines ($122).

  • 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 Montreal Pierre Elliott Trudeau Intl - Chicago O'Hare Intl. You may also consider Toronto Pearson 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: Copa Airlines (79%), Egyptair (72%), Japan Airlines( 70%).

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

    On average you can expect to pay $1,237 for a flight from Region of Ontario to Chicago O'Hare Intl Airport. The cheapest flight overall is $133 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - Chicago O'Hare Intl) is currently priced at $197.

  • 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, April is the cheapest month in which you can book a flight from Region of Ontario to Chicago O'Hare Intl Airport (average of $82). Flying from Region of Ontario to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $193). 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
Naperville
Gurnee
Elgin
Hoffman Estates
Beloit
Delavan
Oak Brook
Des Plaines
Downers Grove
Elk Grove Village
Skokie
Libertyville
Lake Geneva
Waukegan
Bridgeview
Kenosha
Warrenville
Aurora

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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.
Pierre Elliott Trudeau Intl to O'Hare Intl flights
Pearson Intl to O'Hare Intl flights
Vancouver Intl to O'Hare Intl flights
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Pearson Intl to Midway flights
Pierre Elliott Trudeau Intl to Midway flights
Calgary to O'Hare Intl flights
Toronto Island to O'Hare Intl flights
Ottawa to O'Hare Intl flights
Vancouver Intl to Midway flights
Calgary to Midway flights
Ottawa to Midway flights
Québec City to O'Hare Intl flights
Edmonton to O'Hare Intl flights
Abbotsford to O'Hare Intl flights
Edmonton to Midway flights
Winnipeg to O'Hare Intl flights
Halifax to O'Hare Intl flights
Hamilton to O'Hare Intl flights
Halifax to Midway flights
Kelowna to O'Hare Intl flights
Québec City to Midway flights
Winnipeg to Midway flights
Victoria to O'Hare Intl flights
Regina to O'Hare Intl flights
London to O'Hare Intl flights
Saskatoon to O'Hare Intl flights
Nanaimo to O'Hare Intl flights
St. John's to Midway flights
Grande Prairie to O'Hare Intl flights
Medicine Hat to O'Hare Intl flights
London to Midway flights
Moncton to O'Hare Intl flights
Comox to O'Hare Intl flights
Victoria to Midway flights
St John to O'Hare Intl flights

Top 4 airlines flying from Ontario to O'Hare Intl

Discover the top 4 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 February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$140Average$408FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$165Average$430FlexibilityNo cancel feeOn-time69%
Porter AirlinesCheapest$180Average$420FlexibilityNo cancel feeOn-time52%
American AirlinesCheapest$189Average$343FlexibilityNo cancel feeOn-time71%

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