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O'Hare Intl

$126+ 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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
avr. 2 — avr. 91
mer. 4/2
mer. 4/9
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 mars 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$206
(Flightnetwork)

One-way from

$126
(Mytrip)

Popular in

December

Cheapest in

April

Average price

$278

Good round-trip deal

$294 or less

Good one-way deal

$169 or less
Provider with most accurate pricing for Toronto (YTO)-Chicago (CHI) flight deals.
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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. 4% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in March 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 mars 28, 2025.

This Flightnetwork deal was found by Cheapflights users on 3/27. 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.
dim. 7/68:25 amYTZ - ORD
1 stop7h 26mAir Canada
jeu. 7/103:35 pmORD - YTZ
1 stop4h 56mAir Canada
Deal found 3/27$206
This Ticket deal was found by Cheapflights users on 3/27. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 4/192:45 pmYYZ - ORD
Nonstop2h 06mAir Canada
dim. 4/207:20 amORD - YYZ
1 stop5h 19mAir Canada
Deal found 3/27$207
This United Airlines deal was found by Cheapflights users on 3/26. 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.
ven. 4/186:35 pmYYZ - ORD
Nonstop1h 55mUnited Airlines
dim. 4/209:40 amORD - YYZ
Nonstop1h 35mUnited Airlines
Deal found 3/26$227
This United deal was found by Cheapflights users on 3/26. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 4/186:35 pmYYZ - ORD
Nonstop1h 55mMultiple Airlines
dim. 4/201:56 pmORD - YYZ
1 stop6h 31mMultiple Airlines
Deal found 3/26$232
This Booking.com deal was found by Cheapflights users on 3/25. 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.
sam. 5/101:10 pmYUL - ORD
1 stop5h 14mAir Canada
sam. 5/178:40 amORD - YUL
Nonstop2h 15mAir Canada
Deal found 3/25$238
This Delta deal was found by Cheapflights users on 3/26. 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.
sam. 4/199:45 amYYZ - ORD
1 stop7h 26mDelta
jeu. 5/17:10 amORD - YYZ
1 stop9h 49mDelta
Deal found 3/26$239
This United Airlines deal was found by Cheapflights users on 3/26. 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.
mer. 4/301:15 pmYUL - ORD
Nonstop2h 40mUnited Airlines
dim. 5/47:00 amORD - YUL
Nonstop2h 28mUnited Airlines
Deal found 3/26$245
This American Airlines deal was found by Cheapflights users on 3/27. 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.
sam. 4/196:20 pmYYZ - ORD
Nonstop1h 55mAmerican Airlines
dim. 4/208:27 amORD - YYZ
1 stop5h 28mAmerican Airlines
Deal found 3/27$261
This United deal was found by Cheapflights users on 3/26. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 4/196:20 pmYUL - ORD
Nonstop2h 40mMultiple Airlines
dim. 4/201:56 pmORD - YUL
1 stop6h 45mMultiple Airlines
Deal found 3/26$263
This Delta deal was found by Cheapflights users on 3/26. 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.
sam. 4/193:06 pmYUL - ORD
1 stop9h 53mDelta
dim. 4/276:45 amORD - YUL
1 stop8h 15mDelta
Deal found 3/26$269
This American Airlines deal was found by Cheapflights users on 3/27. 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.
ven. 4/2512:30 pmYUL - ORD
Nonstop2h 35mAmerican Airlines
ven. 5/28:30 pmORD - YUL
1 stop12h 20mAmerican Airlines
Deal found 3/27$287
This FlightHub deal was found by Cheapflights users on 3/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/118:00 pmYYZ - ORD
2 stops19h 20mWestJet
mer. 8/207:35 pmORD - YYZ
1 stop12h 18mWestJet
Deal found 3/26$289

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 mars 28, 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

YTZ - ORD

YTZORD

Toronto Island

dim. 7/6

8:25 am-2:51 pm

1 stop7h 26m

Chicago O'Hare Intl

jeu. 7/10

3:35 pm-9:31 pm

1 stop4h 56m

$206

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

sam. 4/19

2:45 pm-3:51 pm

Nonstop2h 06m

Chicago O'Hare Intl

dim. 4/20

7:20 am-1:39 pm

1 stop5h 19m

$207

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

ven. 4/18

6:35 pm-7:30 pm

Nonstop1h 55m

Chicago O'Hare Intl

dim. 4/20

9:40 am-12:15 pm

Nonstop1h 35m

$227

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

ven. 4/18

6:35 pm-7:30 pm

Nonstop1h 55m

Chicago O'Hare Intl

dim. 4/20

1:56 pm-9:27 pm

1 stop6h 31m

$232

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

sam. 5/10

1:10 pm-5:24 pm

1 stop5h 14m

Chicago O'Hare Intl

sam. 5/17

8:40 am-11:55 am

Nonstop2h 15m

$238

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

sam. 4/19

9:45 am-4:11 pm

1 stop7h 26m

Chicago O'Hare Intl

jeu. 5/1

7:10 am-5:59 pm

1 stop9h 49m

$239

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

mer. 4/30

1:15 pm-2:55 pm

Nonstop2h 40m

Chicago O'Hare Intl

dim. 5/4

7:00 am-10:28 am

Nonstop2h 28m

$245

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

sam. 4/19

6:20 pm-7:15 pm

Nonstop1h 55m

Chicago O'Hare Intl

dim. 4/20

8:27 am-2:55 pm

1 stop5h 28m

$261

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

sam. 4/19

6:20 pm-8:00 pm

Nonstop2h 40m

Chicago O'Hare Intl

dim. 4/20

1:56 pm-9:41 pm

1 stop6h 45m

$263

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

sam. 4/19

3:06 pm-11:59 pm

1 stop9h 53m

Chicago O'Hare Intl

dim. 4/27

6:45 am-4:00 pm

1 stop8h 15m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 48 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 $323). 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 mars 28, 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 mars 28, 2025.

The most flights from CAON to ORD are scheduled on a Thursday (53 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated mars 28, 2025.
Read reviews from past customers who have flown Delta, United Airlines and American Airlines from Ontario to Chicago. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,896 reviews

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,896 reviews
Delta
8.0
Very good
7,896 reviews

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,603 reviews
Delta
8.0
Very good
7,896 reviews

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,896 reviews

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
WestJet
7.2
Good
2,785 reviews
Delta
8.0
Very good
7,896 reviews

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.0
Good
8,986 reviews
Delta
8.0
Very good
7,896 reviews

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • 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 ($126), Delta ($135), and United Airlines ($139).

  • 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 Ottawa - 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 (88%), Emirates (87%), ANA( 86%).

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

    On average you can expect to pay $2,110 for a flight from Region of Ontario to Chicago O'Hare Intl Airport. The cheapest flight overall is $119 while the most popular route, (Toronto Pearson Intl - Chicago O'Hare Intl) is currently priced at $224.

  • 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 $323). 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 Ontario to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
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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 mars 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$157Average$378FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$194Average$229FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$233Average$498FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$236Average$327FlexibilityNo cancel feeOn-time71%
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