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Cheap flights from Ontario to Chicago O'Hare Intl Airport from C$ 182

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 26/11. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
2 Dec — 9 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Ontario to O'Hare Intl

Enter your travel dates to find the best prices.

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 2 November 2025.

Sun 14/126:20 a.m.YYZ - ORD
1 stop5h 58mAir Canada
Sun 11/13:55 p.m.ORD - YYZ
Nonstop1h 39mAir Canada
Deal found 31/10C$ 256
Sun 23/117:14 p.m.YYZ - ORD
1 stop5h 26mAmerican Airlines
Mon 1/125:00 a.m.ORD - YYZ
1 stop5h 03mAmerican Airlines
Deal found 2/11C$ 258
Sat 6/126:00 a.m.YYZ - ORD
Nonstop2h 15mAmerican Airlines
Sun 7/128:10 a.m.ORD - YYZ
Nonstop1h 46mAmerican Airlines
Deal found 31/10C$ 263
Sat 13/124:44 p.m.YYZ - ORD
Nonstop2h 00mAmerican Airlines
Sun 14/129:39 a.m.ORD - YYZ
Nonstop1h 51mAmerican Airlines
Deal found 2/11C$ 265
Fri 5/126:00 a.m.YYZ - ORD
Nonstop2h 15mAmerican Airlines
Sun 7/126:05 a.m.ORD - YYZ
1 stop4h 51mAmerican Airlines
Deal found 1/11C$ 270
Wed 3/126:00 a.m.YYZ - ORD
Nonstop2h 15mAmerican Airlines
Thu 11/127:10 a.m.ORD - YYZ
1 stop7h 49mAmerican Airlines
Deal found 2/11C$ 273
Wed 26/1111:51 a.m.YYZ - ORD
1 stop5h 14mAmerican Airlines
Sat 29/111:15 p.m.ORD - YYZ
Nonstop1h 49mAmerican Airlines
Deal found 2/11C$ 277
Fri 14/117:00 a.m.YYZ - ORD
1 stop5h 18mAir Canada
Sun 16/118:00 a.m.ORD - YYZ
Nonstop1h 40mAir Canada
Deal found 31/10C$ 279
Wed 26/116:50 a.m.YYZ - ORD
Nonstop2h 06mUnited Airlines
Fri 28/1111:15 a.m.ORD - YYZ
Nonstop1h 46mUnited Airlines
Deal found 30/10C$ 283
Sun 23/116:50 a.m.YYZ - ORD
Nonstop2h 05mUnited Airlines
Wed 26/116:28 p.m.ORD - YYZ
Nonstop1h 53mUnited Airlines
Deal found 31/10C$ 284
Wed 26/118:30 a.m.YTZ - ORD
1 stop7h 25mAir Canada
Fri 28/117:05 a.m.ORD - YTZ
1 stop6h 50mAir Canada
Deal found 30/10C$ 289
Sat 6/123:30 p.m.YTZ - ORD
1 stop5h 40mAir Canada
Fri 12/1212:50 p.m.ORD - YTZ
1 stop6h 05mAir Canada
Deal found 2/11C$ 312

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 2 November 2025.

Round-trip from

C$ 256

One-way from

C$ 182

Popular in

October

Cheapest in

July

Average price

C$ 405

Good round-trip deal

C$ 562 or less

Good one-way deal

C$ 333 or less
Air Canada
  • Air Canada
  • 9/2-28/2
  • 1 total stop
  • 9h 39m total
  • Ontario to Chicago
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Air Canada
  • Air Canada
  • 26/11
  • 1 total stop
  • 8h 00m total
  • Ontario to Chicago
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 8 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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.
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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 629,999 searches. Data last updated 2 November 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

Mon 9/2

3:30 p.m.-4:40 p.m.

Nonstop2h 10m

Chicago O'Hare Intl

Sat 28/2

3:35 p.m.-12:04 a.m.

1 stop7h 29m

C$ 256

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Fri 10/4

9:00 p.m.-9:59 p.m.

Nonstop1h 59m

Chicago O'Hare Intl

Sat 18/4

6:40 p.m.-9:34 p.m.

Nonstop1h 54m

C$ 258

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Tue 14/4

1:00 p.m.-1:59 p.m.

Nonstop1h 59m

Chicago O'Hare Intl

Tue 14/4

9:15 p.m.-12:09 a.m.

Nonstop1h 54m

C$ 258

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Wed 15/4

1:00 p.m.-1:59 p.m.

Nonstop1h 59m

Chicago O'Hare Intl

Sat 18/4

9:00 a.m.-11:45 a.m.

Nonstop1h 45m

C$ 258

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Tue 14/4

1:00 p.m.-1:59 p.m.

Nonstop1h 59m

Chicago O'Hare Intl

Wed 15/4

10:40 a.m.-1:34 p.m.

Nonstop1h 54m

C$ 258

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Fri 10/4

9:00 p.m.-9:59 p.m.

Nonstop1h 59m

Chicago O'Hare Intl

Wed 15/4

9:00 a.m.-11:45 a.m.

Nonstop1h 45m

C$ 258

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 16/4

1:00 p.m.-1:59 p.m.

Nonstop1h 59m

Chicago O'Hare Intl

Sat 18/4

9:00 a.m.-11:45 a.m.

Nonstop1h 45m

C$ 258

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Fri 21/11

12:08 p.m.-6:26 p.m.

1 stop7h 18m

Chicago O'Hare Intl

Thu 27/11

7:00 a.m.-5:04 p.m.

1 stop9h 04m

C$ 283

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 20/11

9:00 a.m.-10:05 a.m.

Nonstop2h 05m

Chicago O'Hare Intl

Mon 24/11

8:15 p.m.-10:54 p.m.

Nonstop1h 39m

C$ 283

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Sat 22/11

10:05 a.m.-1:55 p.m.

1 stop4h 50m

Chicago O'Hare Intl

Thu 27/11

7:00 a.m.-5:04 p.m.

1 stop9h 04m

C$ 283

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/11

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, April is the cheapest month in which you can book a flight from Region of Ontario to Chicago O'Hare Intl Airport (average of C$ 118). Flying from Region of Ontario to Chicago O'Hare Intl Airport in February is currently the most expensive (average of C$ 310). 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 2 November 2025.

It’s optimal to fly from Region of Ontario to Chicago O'Hare Intl Airport in the evening. By choosing this option you can save up to 30% on the cost of your flight, compared to a flight in the afternoon.

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 16 December 2024.

Travelers seeking maximum savings on their Region of Ontario to Chicago O'Hare Intl Airport flight should consider departing on Sunday mornings when fares are most often at their lowest. Sunday evenings 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 2 November 2025.

The most flights from CAON to ORD are scheduled on a Sunday (61 on average). You will have fewer flight options on Saturday, 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?

    A quick flight from Region of Ontario to Chicago O'Hare Intl Airport can take about 1h 59m. United Airlines provides one of the quickest options available for as low as C$ 258. Region of Ontario and Chicago O'Hare Intl Airport are separated by a distance of 702 km. Both multi-stop and direct flights can be found to your destination and back.

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

    C$ 185 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on Delta and WestJet, with prices starting from C$ 186 and C$ 268, respectively.

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

    The most popular flight routes from Region of Ontario to Chicago O'Hare Intl Airport are Toronto Pearson Intl - Chicago O'Hare Intl, Montreal Pierre Elliott Trudeau Intl - Chicago O'Hare Intl and Toronto Island - Chicago O'Hare Intl.

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

    No one likes to see their flight delayed. When booking a flight from Region of Ontario to Chicago O'Hare Intl Airport consider choosing EVA Air (94%), Egyptair (92%) or ANA (88%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay C$ 2,055 for a flight from Region of Ontario to Chicago O'Hare Intl Airport. The cheapest flight overall is C$ 222 while the most popular route, (Toronto Pearson Intl - Chicago O'Hare Intl) is currently priced at C$ 214.

  • 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 C$ 118). Flying from Region of Ontario to Chicago O'Hare Intl Airport in February is currently the most expensive (average of C$ 310). 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

Travelling 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
Evanston
Des Plaines
Elk Grove Village
Skokie
Downers Grove
Naperville
Bolingbrook
Romeoville

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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.
Pearson Intl to O'Hare Intl flights
Pierre Elliott Trudeau Intl to O'Hare Intl flights
Toronto Island to Midway flights
Vancouver Intl to O'Hare Intl flights
Pearson Intl to Midway flights
Toronto Island to O'Hare Intl flights
Pierre Elliott Trudeau Intl to Midway flights
Ottawa to O'Hare Intl flights
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Vancouver Intl to Midway flights
Québec City to O'Hare Intl flights
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Ottawa to Midway flights
Halifax to O'Hare Intl flights
Edmonton to O'Hare Intl flights
Halifax to Midway flights
Calgary to Midway flights
Edmonton to Midway flights
Québec City to Midway flights
Hamilton to O'Hare Intl flights
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Fort McMurray to O'Hare Intl flights
Saskatoon to Midway flights
London to O'Hare Intl flights
Victoria to O'Hare Intl flights
St. John's to O'Hare Intl flights
Regina to O'Hare Intl flights
Nanaimo to O'Hare Intl flights
Kelowna to Midway flights
Kelowna to O'Hare Intl flights
Victoria to Midway flights
Region of Waterloo Intl to O'Hare Intl flights
Sudbury to O'Hare Intl flights
St John to O'Hare Intl flights
Grande Prairie to O'Hare Intl flights
Moncton to O'Hare Intl flights
Deer Lake to O'Hare Intl flights
Kingston to O'Hare Intl flights
Grande Prairie to Midway flights
Comox to O'Hare Intl flights

Top 5 airlines flying from Ontario to O'Hare Intl

Discover the top 5 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 629,999 searches. Data last updated 2 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 226AverageC$ 279FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
American AirlinesCheapestC$ 264AverageC$ 453FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 264AverageC$ 470FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 283AverageC$ 551FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 374AverageC$ 513FlexibilityNo cancel feeOn-time60%
Search WestJet flights

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How does Cheapflights help users find flights from Ontario to O'Hare Intl?

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Why should you use Cheapflights to find cheap flight tickets from Ontario to O'Hare Intl?

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Can Cheapflights find flights from Ontario to O'Hare Intl with no change fees?

Certainly. Search results for flights to O'Hare Intl from Ontario shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Ontario to O'Hare Intl become cheaper?

Yes! Start tracking prices for Ontario to O'Hare Intl flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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