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O'Hare Intl

$124+ 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
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 April 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$201
(Vakatrip)

One-way from

$124
(Mytrip)

Popular in

December

Cheapest in

April

Average price

$249

Good round-trip deal

$267 or less

Good one-way deal

$181 or less
Provider with most accurate pricing for Toronto (YTO)-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Toronto (YTO)-Chicago (CHI) flights.
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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 ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($2 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 17, 2025.

This Flightnetwork deal was found by Cheapflights users on 4/16. 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.
Tue 5/610:20 amYTZ - ORD
2 stops10h 52mAir Canada
Wed 5/148:40 amORD - YTZ
1 stop5h 10mAir Canada
Deal found 4/16$199
This Vakatrip deal was found by Cheapflights users on 4/16. 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 Vakatrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/912:00 pmYYZ - ORD
Nonstop1h 55mAir Canada
Sun 5/119:35 amORD - YYZ
Nonstop1h 40mAir Canada
Deal found 4/16$201
This United Airlines deal was found by Cheapflights users on 4/16. 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 5/222:45 pmYYZ - ORD
Nonstop2h 05mUnited Airlines
Tue 5/273:50 pmORD - YYZ
Nonstop1h 42mUnited Airlines
Deal found 4/16$205
This United deal was found by Cheapflights users on 4/16. 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.
Sun 5/49:00 amYYZ - ORD
Nonstop2h 01mMultiple Airlines
Sun 5/117:10 amORD - YYZ
Nonstop1h 48mMultiple Airlines
Deal found 4/16$215
This Kissandfly.com deal was found by Cheapflights users on 4/16. 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 5/87:55 amYYZ - ORD
Nonstop1h 55mLufthansa
Sun 5/114:41 pmORD - YYZ
Nonstop1h 56mLufthansa
Deal found 4/16$221
This Flightnetwork deal was found by Cheapflights users on 4/15. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/318:00 amYUL - ORD
1 stop5h 55mAir Canada
Sat 6/73:50 pmORD - YUL
1 stop4h 50mAir Canada
Deal found 4/15$230
This Delta deal was found by Cheapflights users on 4/16. 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.
Tue 5/66:15 amYYZ - ORD
1 stop5h 17mDelta
Wed 5/147:10 amORD - YYZ
1 stop3h 15mDelta
Deal found 4/16$235
This United deal was found by Cheapflights users on 4/16. 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.
Sat 6/216:15 amYUL - ORD
Nonstop2h 44mMultiple Airlines
Tue 6/242:16 pmORD - YUL
1 stop6h 30mMultiple Airlines
Deal found 4/16$245
This American Airlines deal was found by Cheapflights users on 4/16. 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.
Thu 5/226:30 amYYZ - ORD
Nonstop1h 55mAmerican Airlines
Tue 5/277:00 amORD - YYZ
1 stop9h 20mAmerican Airlines
Deal found 4/16$250
This Delta deal was found by Cheapflights users on 4/16. 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 5/196:00 amYUL - ORD
1 stop7h 41mDelta
Tue 5/273:33 pmORD - YUL
1 stop6h 46mDelta
Deal found 4/16$258
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Tue 5/209:15 amYUL - ORD
1 stop8h 29mUnited Airlines
Tue 5/207:40 pmORD - YUL
1 stop11h 08mUnited Airlines
Deal found 4/16$275
This American Airlines deal was found by Cheapflights users on 4/16. 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 8/2712:30 pmYUL - ORD
Nonstop2h 35mAmerican Airlines
Fri 8/298:35 pmORD - YUL
1 stop12h 39mAmerican Airlines
Deal found 4/16$283

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 April 17, 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

Tue 5/6

10:20 am-8:12 pm

2 stops10h 52m

Chicago O'Hare Intl

Wed 5/14

8:40 am-2:50 pm

1 stop5h 10m

$199

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Fri 5/9

12:00 pm-12:55 pm

Nonstop1h 55m

Chicago O'Hare Intl

Sun 5/11

9:35 am-12:15 pm

Nonstop1h 40m

$201

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 5/22

2:45 pm-3:50 pm

Nonstop2h 05m

Chicago O'Hare Intl

Tue 5/27

3:50 pm-6:32 pm

Nonstop1h 42m

$205

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Sun 5/4

9:00 am-10:01 am

Nonstop2h 01m

Chicago O'Hare Intl

Sun 5/11

7:10 am-9:58 am

Nonstop1h 48m

$215

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 5/8

7:55 am-8:50 am

Nonstop1h 55m

Chicago O'Hare Intl

Sun 5/11

4:41 pm-7:37 pm

Nonstop1h 56m

$221

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 5/31

8:00 am-12:55 pm

1 stop5h 55m

Chicago O'Hare Intl

Sat 6/7

3:50 pm-9:40 pm

1 stop4h 50m

$230

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Tue 5/6

12:54 pm-5:04 pm

1 stop5h 10m

Chicago O'Hare Intl

Tue 5/13

11:05 am-5:15 pm

1 stop5h 10m

$235

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 6/21

6:15 am-7:59 am

Nonstop2h 44m

Chicago O'Hare Intl

Tue 6/24

2:16 pm-9:46 pm

1 stop6h 30m

$245

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 5/22

6:30 am-7:25 am

Nonstop1h 55m

Chicago O'Hare Intl

Tue 5/27

7:00 am-5:20 pm

1 stop9h 20m

$250

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Mon 5/19

6:00 am-12:41 pm

1 stop7h 41m

Chicago O'Hare Intl

Tue 5/27

3:33 pm-11:19 pm

1 stop6h 46m

$258

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 46 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 April 17, 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 April 17, 2025.

The most flights from CAON to ORD are scheduled on a Thursday (57 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (44 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 April 17, 2025.
Read reviews from past customers who have flown ANA, Delta and United Airlines from Ontario to Chicago. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.3
Very good
845 reviews

Crew

8.7

Entertainment

7.9

Overall

8.3

Comfort

8.1

Food

7.6

Boarding

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
ANA
8.3
Very good
845 reviews
ANA
8.3
Very good
845 reviews

Crew

8.7

Entertainment

7.9

Overall

8.3

Comfort

8.1

Food

7.6

Boarding

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
Delta
8.0
Very good
7,917 reviews
ANA
8.3
Very good
845 reviews

Crew

8.7

Entertainment

7.9

Overall

8.3

Comfort

8.1

Food

7.6

Boarding

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
United Airlines
7.4
Good
8,667 reviews
ANA
8.3
Very good
845 reviews

Crew

8.7

Entertainment

7.9

Overall

8.3

Comfort

8.1

Food

7.6

Boarding

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
American Airlines
7.2
Good
10,000 reviews
ANA
8.3
Very good
845 reviews

Crew

8.7

Entertainment

7.9

Overall

8.3

Comfort

8.1

Food

7.6

Boarding

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
WestJet
7.2
Good
2,809 reviews
ANA
8.3
Very good
845 reviews

Crew

8.7

Entertainment

7.9

Overall

8.3

Comfort

8.1

Food

7.6

Boarding

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.

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 ($124), United Airlines ($134), and Lufthansa ($143).

  • 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 (90%), Egyptair (89%), ANA( 85%).

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

    On average you can expect to pay $528 for a flight from Region of Ontario to Chicago O'Hare Intl Airport. The cheapest flight overall is $127 while the most popular route, (Toronto Pearson Intl - Chicago O'Hare Intl) is currently priced at $201.

  • 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 Ontario?

Book flights to Ontario if you plan to visit one of these locations
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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 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$196Average$423FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$227Average$461FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$228Average$327FlexibilityNo cancel feeOn-time71%

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