Ontario

$104+ Cheap flights from O'Hare Intl (ORD) to Ontario

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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YYZ
Apr 20 — Apr 271
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Cheap flight deals from O'Hare Intl to Ontario

Keep the following information in mind while searching for O'Hare Intl to Ontario flight deals. Data was last updated April 15, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$201
(Gotogate)

One-way from

$104
(Kissandfly.com)

Popular in

November

Cheapest in

July

Average price

$335

Good round-trip deal

$257 or less

Good one-way deal

$143 or less
Provider with most accurate pricing for Chicago (CHI)-Toronto (YTO) flight deals.
Provider most trusted by Cheapflights users for Chicago (CHI)-Toronto (YTO) flights.
From Chicago O'Hare Intl to Ontario
One-way flight from Chicago O'Hare Intl to Ontario
Highest demand for flights based on searches. 4% potential increase in price ($13 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Average for round-trip flights in April 2025
Price to beat on a round-trip flight from Chicago O'Hare Intl to Ontario.
Price to beat on a one-way flight from Chicago O'Hare Intl to Ontario.

Find flight deals from O'Hare Intl to Ontario

Cheapest flights from O'Hare Intl to Ontario
Explore the most affordable flight options available from O'Hare Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.

This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/302:16 pmORD - YTZ
1 stop5h 21mAir Canada
Fri 6/68:50 amYTZ - ORD
1 stop4h 06mAir Canada
Deal found 4/15$201
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/308:25 pmORD - YYZ
Nonstop1h 42mAir Canada
Fri 6/62:10 pmYYZ - ORD
Nonstop1h 55mAir Canada
Deal found 4/15$201
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/79:05 pmORD - YYZ
1 stop13h 54mUnited Airlines
Thu 5/82:10 pmYYZ - ORD
Nonstop1h 55mUnited Airlines
Deal found 4/15$231
This Flightnetwork deal was found by Cheapflights users on 4/14. 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.
Thu 5/292:16 pmORD - YUL
1 stop6h 25mAir Canada
Thu 6/56:15 amYUL - ORD
Nonstop2h 44mAir Canada
Deal found 4/14$232
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/309:08 pmORD - YYZ
1 stop14h 22mMultiple Airlines
Mon 6/24:00 pmYYZ - ORD
2 stops17h 50mMultiple Airlines
Deal found 4/15$243
This American Airlines deal was found by Cheapflights users on 4/14. 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.
Fri 5/233:00 pmORD - YYZ
Nonstop1h 35mAmerican Airlines
Sun 5/253:10 pmYYZ - ORD
Nonstop1h 55mAmerican Airlines
Deal found 4/14$263
This Kissandfly.com 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/86:01 pmORD - YYZ
Nonstop1h 43mLufthansa
Sun 5/112:45 pmYYZ - ORD
Nonstop2h 06mLufthansa
Deal found 4/15$267
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/293:33 pmORD - YYZ
1 stop6h 41mDelta
Mon 6/212:15 pmYYZ - ORD
1 stop7h 22mDelta
Deal found 4/15$269
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/137:00 amORD - YUL
Nonstop2h 28mMultiple Airlines
Tue 5/207:00 amYUL - ORD
3 stops26h 50mMultiple Airlines
Deal found 4/15$280
This KAYAK deal was found by Cheapflights users on 4/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/298:25 amORD - YUL
Nonstop2h 19mAmerican Airlines
Thu 5/112:30 pmYUL - ORD
Nonstop2h 35mAmerican Airlines
Deal found 4/14$286
This Mytrip deal was found by Cheapflights users on 4/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/129:08 pmORD - YTZ
1 stop11h 22mMultiple Airlines
Tue 5/1312:00 pmYTZ - ORD
2 stops20h 27mMultiple Airlines
Deal found 4/14$294
This Delta deal was found by Cheapflights users on 4/14. 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.
Thu 5/157:05 amORD - YUL
1 stop9h 35mDelta
Mon 5/196:45 pmYUL - ORD
1 stop6h 13mDelta
Deal found 4/14$298

Cheapflights Fare Finder

Customize your flight search to find flights from O'Hare Intl to Ontario 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 15, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Ontario that are best for you.

Fly from

O'Hare Intl

Fly to

Ontario

Route

Depart

Return

Price

ChicagoToronto

ORD - YTZ

ORDYTZ

Chicago O'Hare Intl

Fri 5/30

2:16 pm-8:37 pm

1 stop5h 21m

Toronto Island

Fri 6/6

8:50 am-11:56 am

1 stop4h 06m

$201

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Fri 5/30

8:25 pm-11:07 pm

Nonstop1h 42m

Toronto Pearson Intl

Fri 6/6

2:10 pm-3:05 pm

Nonstop1h 55m

$201

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Wed 5/7

9:05 pm-11:59 am

1 stop13h 54m

Toronto Pearson Intl

Thu 5/8

2:10 pm-3:05 pm

Nonstop1h 55m

$231

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 5/29

2:16 pm-9:41 pm

1 stop6h 25m

Montreal Pierre Elliott Trudeau Intl

Thu 6/5

6:15 am-7:59 am

Nonstop2h 44m

$232

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Fri 5/30

9:08 pm-12:30 pm

1 stop14h 22m

Toronto Pearson Intl

Mon 6/2

4:00 pm-8:50 am

2 stops17h 50m

$243

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Fri 5/23

3:00 pm-5:35 pm

Nonstop1h 35m

Toronto Pearson Intl

Sun 5/25

6:20 pm-7:15 pm

Nonstop1h 55m

$263

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 5/8

6:01 pm-8:44 pm

Nonstop1h 43m

Toronto Pearson Intl

Sun 5/11

2:45 pm-3:51 pm

Nonstop2h 06m

$267

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 5/29

3:33 pm-11:14 pm

1 stop6h 41m

Toronto Pearson Intl

Thu 6/5

3:50 pm-6:37 pm

1 stop3h 47m

$269

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 5/13

7:00 am-10:28 am

Nonstop2h 28m

Montreal Pierre Elliott Trudeau Intl

Tue 5/20

7:00 am-8:50 am

3 stops26h 50m

$280

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 4/29

8:25 am-11:44 am

Nonstop2h 19m

Montreal Pierre Elliott Trudeau Intl

Thu 5/1

12:30 pm-2:05 pm

Nonstop2h 35m

$286

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Showing 1-10 of 54 results
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Best time to book a flight from O'Hare Intl to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from O'Hare Intl 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 Chicago O'Hare Intl Airport to Ontario

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Region of Ontario?

Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Region of Ontario (average of $243). Flying from Chicago O'Hare Intl Airport to Region of Ontario in July is currently the most expensive (average of $359). 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 ORD to ON?

Find hourly flight availability from O'Hare Intl to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 15, 2025.

When flying from Chicago O'Hare Intl Airport to Region of Ontario, 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 Chicago O'Hare Intl Airport to Region of Ontario

Explore weekly flight availability from O'Hare Intl to Ontario. 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 15, 2025.

The most flights from ORD to CAON are scheduled on a Monday (57 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (46 on average).

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated April 15, 2025.
Read through reviews of airlines operating flights from Chicago to Ontario, such as Japan Airlines, Porter Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.2

Food

7.7

Crew

8.7

Boarding

8.4

Overall

8.3

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!

Comfort

8.2

Food

7.7

Crew

8.7

Boarding

8.4

Overall

8.3

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!

Comfort

8.2

Food

7.7

Crew

8.7

Boarding

8.4

Overall

8.3

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!
8.0
Very good

Comfort

8.2

Food

7.7

Crew

8.7

Boarding

8.4

Overall

8.3

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!

Comfort

8.2

Food

7.7

Crew

8.7

Boarding

8.4

Overall

8.3

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!

Comfort

8.2

Food

7.7

Crew

8.7

Boarding

8.4

Overall

8.3

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

Diego,Nov 2024

HKG - NRT

overall very good; just found a bit poor the food options in Narita airport but the in the flight it was good but limited (no real choice to avoid seafood or clearly stay away from pork..); most of the food was tasty tho and the choice was nice, specially their snacks and dessert and drinks. The in-flight systems was so-so (too complicated interface; they should rehaul with a proper UIX), and I specially appreciated their segments of videos capsules about the behind the scenes including an overview of technicalities of their aircraft and days in the life of their pilots. It was refreshing and give a good ideas of the efforts and challenges every employees has to deal with. Loved it!

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Ontario. 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 Chicago O'Hare Intl Airport to Region of Ontario one-way?

    The cheapest airlines for a one-way flight from Chicago O'Hare Intl Airport to Region of Ontario are Lufthansa ($104), Air Canada ($105), and Delta ($107).

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

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

    Consider Sun Country Air (100%), Korean Air (85%) or Air New Zealand (77%) when booking your flight. These represent the most reliable airlines when flying from Chicago O'Hare Intl Airport to Region of Ontario.

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

    The cheapest flight price from Chicago O'Hare Intl Airport to Region of Ontario is $111. On average you can expect to pay $917. The most popular route, (Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl), can usually be booked for $257.

  • Can I find deals for flights from O'Hare Intl to Ontario that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Ontario.

  • Can I find deals for business class flights from O'Hare Intl to Ontario?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Ontario 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 Chicago O'Hare Intl Airport to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Region of Ontario (average of $243). Flying from Chicago O'Hare Intl Airport to Region of Ontario in July is currently the most expensive (average of $359). 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 O'Hare Intl to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from O'Hare Intl to Ontario

Discover the top 4 airlines that operate flights from O'Hare Intl to Ontario. 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$120Average$529FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$122Average$287FlexibilityNo cancel feeOn-time52%
American AirlinesCheapest$124Average$360FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$174Average$529FlexibilityNo cancel feeOn-time69%

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