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Cheap flights from Chicago O'Hare Intl Airport to Ontario from C$ 97

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YYZ
3 Aug — 10 Aug1
1 adult

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 29 July 2025.

Round-trip from

C$ 244

One-way from

C$ 97

Popular in

November

Cheapest in

August

Average price

C$ 370

Good round-trip deal

C$ 114 or less

Good one-way deal

C$ 132 or less
Air Canada
  • Air Canada
  • 22/9-23/9
  • 1 total stop
  • 12h 04m total
  • Chicago to Ontario
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Air Canada
  • Air Canada
  • 4/9
  • Nonstop
  • 1h 43m total
  • Chicago to Ontario
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 43 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 10 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to Ontario.
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Price to beat on a one-way flight from Chicago O'Hare Intl to Ontario.
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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 29 July 2025.

Mon 22/98:25 p.m.ORD - YYZ
Nonstop1h 43mAir Canada
Tue 23/912:30 a.m.YYZ - ORD
1 stop10h 21mAir Canada
Deal found 27/7C$ 244
Wed 3/96:00 a.m.ORD - YYZ
1 stop4h 44mUnited Airlines
Sat 6/93:00 p.m.YYZ - ORD
1 stop6h 11mUnited Airlines
Deal found 26/7C$ 252
Thu 23/103:35 p.m.ORD - YTZ
1 stop4h 59mAir Canada
Sun 26/107:20 p.m.YTZ - ORD
2 stops16h 58mAir Canada
Deal found 27/7C$ 270
Wed 17/91:10 p.m.ORD - YUL
Nonstop2h 23mAmerican Airlines
Mon 22/95:15 p.m.YUL - ORD
Nonstop2h 35mAmerican Airlines
Deal found 29/7C$ 278
Sun 31/88:40 a.m.ORD - YUL
Nonstop2h 18mAir Canada
Mon 1/99:15 a.m.YUL - ORD
1 stop11h 14mAir Canada
Deal found 27/7C$ 287
Fri 21/116:04 a.m.ORD - YYZ
1 stop4h 48mAmerican Airlines
Tue 25/1111:51 a.m.YYZ - ORD
1 stop8h 27mAmerican Airlines
Deal found 27/7C$ 288
Tue 9/95:05 a.m.ORD - YYZ
1 stop8h 00mMultiple Airlines
Sat 13/96:30 a.m.YYZ - ORD
1 stop12h 09mMultiple Airlines
Deal found 29/7C$ 307
Wed 10/97:10 a.m.ORD - YYZ
1 stop8h 00mDelta
Fri 12/912:14 p.m.YYZ - ORD
1 stop6h 50mDelta
Deal found 28/7C$ 321
Tue 21/101:26 p.m.ORD - YUL
1 stop9h 32mDelta
Mon 27/106:41 p.m.YUL - ORD
1 stop6h 16mDelta
Deal found 27/7C$ 325
Thu 4/99:00 a.m.ORD - YUL
1 stop9h 45mMultiple Airlines
Mon 8/98:20 a.m.YUL - ORD
Nonstop2h 31mMultiple Airlines
Deal found 27/7C$ 369
Thu 4/910:40 a.m.ORD - YTZ
1 stop5h 05mMultiple Airlines
Sun 7/97:25 p.m.YTZ - ORD
2 stops23h 14mMultiple Airlines
Deal found 29/7C$ 373
Sat 23/86:00 p.m.ORD - YUL
Nonstop2h 29mUnited Airlines
Mon 25/86:15 a.m.YUL - ORD
Nonstop2h 46mUnited Airlines
Deal found 29/7C$ 406

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 629,999 searches. Data last updated 29 July 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 - YYZ

ORDYYZ

Chicago O'Hare Intl

Mon 22/9

8:25 p.m.-11:08 p.m.

Nonstop1h 43m

Toronto Pearson Intl

Tue 23/9

12:30 a.m.-9:51 a.m.

1 stop10h 21m

C$ 244

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Wed 3/9

6:00 a.m.-11:44 a.m.

1 stop4h 44m

Toronto Pearson Intl

Sat 6/9

3:00 p.m.-8:11 p.m.

1 stop6h 11m

C$ 252

ChicagoToronto

ORD - YTZ

ORDYTZ

Chicago O'Hare Intl

Thu 23/10

3:35 p.m.-9:34 p.m.

1 stop4h 59m

Toronto Island

Sun 26/10

7:20 p.m.-11:18 a.m.

2 stops16h 58m

C$ 270

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Wed 17/9

1:10 p.m.-4:33 p.m.

Nonstop2h 23m

Montreal Pierre Elliott Trudeau Intl

Mon 22/9

5:15 p.m.-6:50 p.m.

Nonstop2h 35m

C$ 278

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sun 31/8

8:40 a.m.-11:58 a.m.

Nonstop2h 18m

Montreal Pierre Elliott Trudeau Intl

Mon 1/9

9:15 a.m.-7:29 p.m.

1 stop11h 14m

C$ 287

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Fri 21/11

6:04 a.m.-11:52 a.m.

1 stop4h 48m

Toronto Pearson Intl

Tue 25/11

11:51 a.m.-7:18 p.m.

1 stop8h 27m

C$ 288

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Tue 9/9

5:05 a.m.-2:05 p.m.

1 stop8h 00m

Toronto Pearson Intl

Sat 13/9

6:30 a.m.-5:39 p.m.

1 stop12h 09m

C$ 307

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Sun 28/9

9:10 a.m.-5:23 p.m.

1 stop7h 13m

Toronto Pearson Intl

Fri 3/10

12:14 p.m.-6:04 p.m.

1 stop6h 50m

C$ 321

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 21/10

1:26 p.m.-11:58 p.m.

1 stop9h 32m

Montreal Pierre Elliott Trudeau Intl

Wed 29/10

6:00 a.m.-9:23 a.m.

1 stop4h 23m

C$ 325

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 4/9

9:00 a.m.-7:45 p.m.

1 stop9h 45m

Montreal Pierre Elliott Trudeau Intl

Mon 8/9

8:20 a.m.-9:51 a.m.

Nonstop2h 31m

C$ 369

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/7

Showing 1-10 of 42 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 C$ 167). Flying from Chicago O'Hare Intl Airport to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 29 July 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 29 July 2025.

The most flights from ORD to CAON are scheduled on a Monday (63 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (44 on average).

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 29 July 2025.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Chicago O'Hare Intl Airport to Ontario have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,979 reviews
Check prices

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,979 reviews
Delta
8.0
Very good
7,979 reviews
Check prices

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,979 reviews
Check prices

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,979 reviews
Check prices

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
WestJet
7.2
Good
2,972 reviews
Delta
8.0
Very good
7,979 reviews
Check prices

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,826 reviews
Delta
8.0
Very good
7,979 reviews
Check prices

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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?

    C$ 97 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 American Airlines and United Airlines, with prices starting from C$ 106 and C$ 122, respectively.

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

    When deciding which route to take from Chicago O'Hare Intl Airport to Region of Ontario consider Chicago O'Hare Intl - Toronto Pearson Intl, Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl or Chicago O'Hare Intl - Toronto Island as they are the most popular.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago O'Hare Intl Airport to Region of Ontario on time: SkyWest Airlines (91%), Envoy Air (84%), Japan Airlines (80%).

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

    While on average a flight from Chicago O'Hare Intl Airport to Region of Ontario is generally C$ 209, our data shows the cheapest flight currently is C$ 92. When looking at the most popular route, (Chicago O'Hare Intl - Toronto Pearson Intl), you can expect to pay C$ 202 for that flight.

  • 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 C$ 167). Flying from Chicago O'Hare Intl Airport to Region of Ontario in July is currently the most expensive (average of C$ 258). 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.
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O'Hare Intl to Pierre Elliott Trudeau Intl flights
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Midway to Kelowna flights
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Top 2 airlines flying from O'Hare Intl to Ontario

Discover the top 2 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 629,999 searches. Data last updated 29 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 202AverageC$ 415FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 258AverageC$ 371FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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

Deals for O'Hare Intl to Ontario flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Millions of users choose and trust Cheapflights to book the best flight deals from O'Hare Intl to Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes! Cheapflights helps users easily find flights from O'Hare Intl to Ontario with no change fees.

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

Yes! Start tracking prices for O'Hare Intl to Ontario 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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