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O'Hare Intl

$146+ 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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
gen. 26 — febr. 21
dg. 1/26
dg. 2/2
1 adult, Economy
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Cheap flight deals from Ontario to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (CAON) to O'Hare Intl (ORD). 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 gener 21, 2025.

Round-trip from

$238
(American Airlines)

One-way from

$146
(Mytrip)

Good round-trip deal

$299 or less

Good one-way deal

$194 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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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 gener 21, 2025.

This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ds. 3/16:20 pmYYZ - ORD
Nonstop2h 00mAmerican Airlines
dc. 3/58:11 amORD - YYZ
Nonstop1h 40mAmerican Airlines
Deal found 1/20$238
This Air Canada deal was found by Cheapflights users on 1/21. 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.
dv. 2/216:40 pmYYZ - ORD
Nonstop1h 57mAir Canada
dl. 2/247:12 amORD - YYZ
Nonstop1h 46mAir Canada
Deal found 1/21$244
This United deal was found by Cheapflights users on 1/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dc. 2/126:40 pmYYZ - ORD
Nonstop1h 57mMultiple Airlines
ds. 2/229:50 amORD - YYZ
Nonstop1h 35mMultiple Airlines
Deal found 1/20$247
This Air Canada deal was found by Cheapflights users on 1/21. 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.
dv. 2/148:50 amYTZ - ORD
1 stop5h 09mAir Canada
dl. 2/171:58 pmORD - YTZ
1 stop5h 45mAir Canada
Deal found 1/21$248
This Kiwi.com deal was found by Cheapflights users on 1/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dc. 2/126:45 amYTZ - ORD
1 stop5h 20mMultiple Airlines
dj. 2/135:15 amORD - YTZ
1 stop5h 25mMultiple Airlines
Deal found 1/19$257
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dj. 2/136:00 amYYZ - ORD
1 stop4h 16mDelta
ds. 2/154:58 pmORD - YYZ
1 stop4h 51mDelta
Deal found 1/20$266
This United Airlines deal was found by Cheapflights users on 1/21. 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.
dj. 2/139:00 pmYYZ - ORD
Nonstop2h 06mUnited Airlines
dg. 2/168:45 amORD - YYZ
1 stop4h 33mUnited Airlines
Deal found 1/21$271
This Kissandfly.com deal was found by Cheapflights users on 1/21. 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.
ds. 2/226:30 amYYZ - ORD
1 stop4h 58mKLM
ds. 2/222:05 pmORD - YYZ
1 stop7h 44mKLM
Deal found 1/21$273
This Trip.com deal was found by Cheapflights users on 1/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dj. 2/136:30 amYYZ - ORD
1 stop6h 00mWestJet
dl. 2/176:15 amORD - YYZ
1 stop6h 29mWestJet
Deal found 1/20$282
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dt. 2/44:15 pmYOW - ORD
1 stop21h 42mMultiple Airlines
dt. 2/115:35 amORD - YOW
1 stop8h 22mMultiple Airlines
Deal found 1/20$282
This Kissandfly.com deal was found by Cheapflights users on 1/20. 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.
dj. 2/139:00 amYYZ - ORD
Nonstop2h 04mLufthansa
dg. 2/1611:04 amORD - YYZ
Nonstop1h 38mLufthansa
Deal found 1/20$288
This Air Canada deal was found by Cheapflights users on 1/21. 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.
dv. 2/218:50 amYUL - ORD
1 stop5h 09mAir Canada
dc. 2/267:20 amORD - YUL
Nonstop2h 12mAir Canada
Deal found 1/21$302

Find flights from Ontario to O'Hare Intl within your budget

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 gener 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

ds. 3/1

11:31 am-12:31 pm

Nonstop2h 00m

Chicago O'Hare Intl

dc. 3/5

8:11 am-10:51 am

Nonstop1h 40m

$238

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

dg. 2/16

12:20 pm-1:11 pm

Nonstop1h 51m

Chicago O'Hare Intl

dg. 2/23

8:30 pm-11:11 pm

Nonstop1h 41m

$244

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

dc. 2/12

6:40 pm-7:37 pm

Nonstop1h 57m

Chicago O'Hare Intl

ds. 2/22

9:50 am-12:25 pm

Nonstop1h 35m

$247

TorontoChicago

YTZ - ORD

YTZORD

Toronto Island

dv. 2/14

8:50 am-12:59 pm

1 stop5h 09m

Chicago O'Hare Intl

dl. 2/17

1:58 pm-8:43 pm

1 stop5h 45m

$248

TorontoChicago

YTZ - ORD

YTZORD

Toronto Island

dt. 2/18

2:00 pm-10:40 am

2 stops21h 40m

Chicago O'Hare Intl

dt. 2/25

7:10 am-10:23 pm

2 stops14h 13m

$256

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

dj. 2/13

6:00 am-9:16 am

1 stop4h 16m

Chicago O'Hare Intl

ds. 2/15

4:58 pm-10:49 pm

1 stop4h 51m

$266

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

dj. 2/13

6:30 am-11:30 am

1 stop6h 00m

Chicago O'Hare Intl

dl. 2/17

6:15 am-1:44 pm

1 stop6h 29m

$282

OttawaChicago

YOW - ORD

YOWORD

Ottawa

dt. 2/4

4:15 pm-12:57 pm

1 stop21h 42m

Chicago O'Hare Intl

dt. 2/11

5:35 am-2:57 pm

1 stop8h 22m

$282

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

dj. 2/13

9:00 am-10:04 am

Nonstop2h 04m

Chicago O'Hare Intl

dg. 2/16

11:04 am-1:42 pm

Nonstop1h 38m

$288

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

dj. 2/13

9:00 am-10:04 am

Nonstop2h 04m

Chicago O'Hare Intl

dg. 2/16

1:04 pm-3:45 pm

Nonstop1h 41m

$296

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 47 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.

Travel insights for flights from Ontario to O'Hare Intl

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

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 $320). 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 gener 21, 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 gener 21, 2025.

The most flights from CAON to ORD are scheduled on a Monday (52 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (33 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 gener 21, 2025.
Read reviews from past customers who have flown Air Canada, WestJet and United 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
8,521 reviews

Boarding

8.2

Crew

8.6

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

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

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Boarding

8.2

Crew

8.6

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

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

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Boarding

8.2

Crew

8.6

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

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

Austrian Airlines
7.6
Good
786 reviews
Delta
8.0
Very good
8,521 reviews

Boarding

8.2

Crew

8.6

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

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

United Airlines
7.4
Good
8,984 reviews
Delta
8.0
Very good
8,521 reviews

Boarding

8.2

Crew

8.6

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

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
8,521 reviews

Boarding

8.2

Crew

8.6

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

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 ($147), American Airlines ($149), and British Airways ($154).

  • 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: Emirates (92%), Japan Airlines (92%), Republic Airways( 90%).

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

    On average you can expect to pay $682 for a flight from Region of Ontario to Chicago O'Hare Intl Airport. The cheapest flight overall is $153 while the most popular route, (Toronto Pearson Intl - Chicago O'Hare Intl) is currently priced at $247.

  • 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 $320). 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 Ontario?

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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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Québec City to O'Hare Intl flights
Québec City to Midway flights
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Edmonton to Midway flights
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Victoria to Midway flights
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London to Midway flights
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Grande Prairie 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 gener 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$206Average$423FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$219Average$432FlexibilityNo cancel feeOn-time69%
Porter AirlinesCheapest$221Average$261FlexibilityNo cancel feeOn-time52%
American AirlinesCheapest$238Average$326FlexibilityNo cancel feeOn-time71%
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