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Cheap flights from Chicago O'Hare Intl Airport to Ontario from C$ 108

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YYZ
17 Jun — 24 Jun1
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 12 June 2025.

Round-trip from

C$ 237

One-way from

C$ 108

Popular in

November

Cheapest in

July

Average price

C$ 383

Good round-trip deal

C$ 238 or less

Good one-way deal

C$ 171 or less
Air Canada
  • Air Canada
  • 29/9-1/10
  • Nonstop
  • 3h 36m total
  • Chicago to Ontario
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American Airlines
  • American Airlines
  • 1/9
  • 1 total stop
  • 6h 29m total
  • Chicago to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to Ontario.
Search Deals
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 12 June 2025.

Mon 29/92:00 p.m.ORD - YYZ
Nonstop1h 43mAir Canada
Wed 1/104:40 p.m.YYZ - ORD
Nonstop1h 53mAir Canada
Deal found 12/6C$ 237
Thu 18/99:31 p.m.ORD - YYZ
1 stop11h 33mUnited Airlines
Wed 24/95:15 p.m.YYZ - ORD
Nonstop1h 57mUnited Airlines
Deal found 10/6C$ 242
Tue 15/76:00 a.m.ORD - YYZ
1 stop5h 05mAmerican Airlines
Tue 15/73:45 p.m.YYZ - ORD
1 stop6h 46mAmerican Airlines
Deal found 12/6C$ 282
Fri 12/910:40 a.m.ORD - YTZ
1 stop5h 05mAir Canada
Sat 20/93:25 p.m.YTZ - ORD
1 stop5h 46mAir Canada
Deal found 11/6C$ 302
Sat 26/79:25 p.m.ORD - YYZ
1 stop10h 54mMultiple Airlines
Sat 2/89:45 a.m.YYZ - ORD
1 stop7h 48mMultiple Airlines
Deal found 11/6C$ 317
Tue 23/97:00 a.m.ORD - YYZ
1 stop3h 29mDelta
Fri 26/93:59 p.m.YYZ - ORD
1 stop3h 39mDelta
Deal found 11/6C$ 320
Sun 27/78:40 a.m.ORD - YUL
Nonstop2h 18mAir Canada
Sun 3/85:00 a.m.YUL - ORD
1 stop5h 09mAir Canada
Deal found 12/6C$ 371
Tue 22/78:25 p.m.ORD - YUL
1 stop12h 20mAmerican Airlines
Wed 23/712:30 p.m.YUL - ORD
Nonstop2h 35mAmerican Airlines
Deal found 11/6C$ 372
Thu 11/96:00 a.m.ORD - YUL
1 stop10h 04mDelta
Mon 15/97:00 a.m.YUL - ORD
1 stop10h 38mDelta
Deal found 11/6C$ 383
Thu 10/74:37 p.m.ORD - YTZ
1 stop19h 31mMultiple Airlines
Sun 13/78:45 a.m.YTZ - ORD
1 stop14h 04mMultiple Airlines
Deal found 11/6C$ 435
Sun 7/98:12 p.m.ORD - YUL
2 stops15h 18mMultiple Airlines
Thu 11/96:35 p.m.YUL - ORD
1 stop5h 35mMultiple Airlines
Deal found 11/6C$ 450
Wed 9/79:55 a.m.ORD - YOW
1 stop13h 27mMultiple Airlines
Wed 16/75:55 a.m.YOW - ORD
1 stop10h 09mMultiple Airlines
Deal found 12/6C$ 468

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 12 June 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 29/9

2:00 p.m.-4:43 p.m.

Nonstop1h 43m

Toronto Pearson Intl

Wed 1/10

4:40 p.m.-5:33 p.m.

Nonstop1h 53m

C$ 237

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 18/9

9:31 p.m.-10:04 a.m.

1 stop11h 33m

Toronto Pearson Intl

Wed 24/9

5:15 p.m.-6:12 p.m.

Nonstop1h 57m

C$ 242

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Tue 15/7

6:00 a.m.-12:05 p.m.

1 stop5h 05m

Toronto Pearson Intl

Tue 15/7

3:45 p.m.-9:31 p.m.

1 stop6h 46m

C$ 282

ChicagoToronto

ORD - YTZ

ORDYTZ

Chicago O'Hare Intl

Fri 12/9

10:40 a.m.-4:45 p.m.

1 stop5h 05m

Toronto Island

Sat 20/9

3:25 p.m.-8:11 p.m.

1 stop5h 46m

C$ 302

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Sat 26/7

9:25 p.m.-9:19 a.m.

1 stop10h 54m

Toronto Pearson Intl

Sat 2/8

9:45 a.m.-4:33 p.m.

1 stop7h 48m

C$ 317

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Tue 23/9

6:00 a.m.-11:29 a.m.

1 stop4h 29m

Toronto Pearson Intl

Wed 1/10

2:40 p.m.-7:17 p.m.

1 stop5h 37m

C$ 320

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 7/8

8:25 p.m.-1:51 a.m.

1 stop4h 26m

Montreal Pierre Elliott Trudeau Intl

Mon 11/8

9:15 a.m.-3:04 p.m.

1 stop6h 49m

C$ 371

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 15/7

7:45 p.m.-12:20 p.m.

1 stop15h 35m

Montreal Pierre Elliott Trudeau Intl

Wed 16/7

2:35 p.m.-11:57 p.m.

1 stop10h 22m

C$ 372

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 16/10

6:00 a.m.-5:04 p.m.

1 stop10h 04m

Montreal Pierre Elliott Trudeau Intl

Sun 19/10

6:00 a.m.-12:39 p.m.

1 stop7h 39m

C$ 383

ChicagoToronto

ORD - YTZ

ORDYTZ

Chicago O'Hare Intl

Thu 10/7

4:37 p.m.-1:08 p.m.

1 stop19h 31m

Toronto Island

Sun 13/7

8:45 a.m.-9:49 p.m.

1 stop14h 04m

C$ 435

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

Showing 1-10 of 48 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$ 255). 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 12 June 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 12 June 2025.

The most flights from ORD to CAON are scheduled on a Thursday (62 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (27 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 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

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 12 June 2025.
See what other customers who have flown with Japan Airlines, Delta and United Airlines from Chicago to Ontario have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very good
1,489 reviews
Check prices

Boarding

8.4

Food

7.7

Crew

8.7

Comfort

8.2

Overall

8.3

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

DFW - NRT

This flight was operated by American Airlines. The food was barely tolerable. Mid flight sandwich was ice cold, could not be bothered to warm it up. Staff did not seem to like their jobs very much. Too many seats packed in to maximize profit. A true “cattle car” experience. Subsequent flight from Tokyo to HCMC was on Japan Airlines which was excellent. No comparison between JAL and AA. Unfortunately that’s just the way service is in America nowadays.
Japan Airlines
8.3
Very good
1,489 reviews
Japan Airlines
8.3
Very good
1,489 reviews
Check prices

Boarding

8.4

Food

7.7

Crew

8.7

Comfort

8.2

Overall

8.3

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

DFW - NRT

This flight was operated by American Airlines. The food was barely tolerable. Mid flight sandwich was ice cold, could not be bothered to warm it up. Staff did not seem to like their jobs very much. Too many seats packed in to maximize profit. A true “cattle car” experience. Subsequent flight from Tokyo to HCMC was on Japan Airlines which was excellent. No comparison between JAL and AA. Unfortunately that’s just the way service is in America nowadays.
Delta
8.0
Very good
7,950 reviews
Japan Airlines
8.3
Very good
1,489 reviews
Check prices

Boarding

8.4

Food

7.7

Crew

8.7

Comfort

8.2

Overall

8.3

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

DFW - NRT

This flight was operated by American Airlines. The food was barely tolerable. Mid flight sandwich was ice cold, could not be bothered to warm it up. Staff did not seem to like their jobs very much. Too many seats packed in to maximize profit. A true “cattle car” experience. Subsequent flight from Tokyo to HCMC was on Japan Airlines which was excellent. No comparison between JAL and AA. Unfortunately that’s just the way service is in America nowadays.
United Airlines
7.4
Good
8,790 reviews
Japan Airlines
8.3
Very good
1,489 reviews
Check prices

Boarding

8.4

Food

7.7

Crew

8.7

Comfort

8.2

Overall

8.3

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

DFW - NRT

This flight was operated by American Airlines. The food was barely tolerable. Mid flight sandwich was ice cold, could not be bothered to warm it up. Staff did not seem to like their jobs very much. Too many seats packed in to maximize profit. A true “cattle car” experience. Subsequent flight from Tokyo to HCMC was on Japan Airlines which was excellent. No comparison between JAL and AA. Unfortunately that’s just the way service is in America nowadays.
American Airlines
7.2
Good
10,000 reviews
Japan Airlines
8.3
Very good
1,489 reviews
Check prices

Boarding

8.4

Food

7.7

Crew

8.7

Comfort

8.2

Overall

8.3

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

DFW - NRT

This flight was operated by American Airlines. The food was barely tolerable. Mid flight sandwich was ice cold, could not be bothered to warm it up. Staff did not seem to like their jobs very much. Too many seats packed in to maximize profit. A true “cattle car” experience. Subsequent flight from Tokyo to HCMC was on Japan Airlines which was excellent. No comparison between JAL and AA. Unfortunately that’s just the way service is in America nowadays.
WestJet
7.2
Good
2,868 reviews
Japan Airlines
8.3
Very good
1,489 reviews
Check prices

Boarding

8.4

Food

7.7

Crew

8.7

Comfort

8.2

Overall

8.3

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

DFW - NRT

This flight was operated by American Airlines. The food was barely tolerable. Mid flight sandwich was ice cold, could not be bothered to warm it up. Staff did not seem to like their jobs very much. Too many seats packed in to maximize profit. A true “cattle car” experience. Subsequent flight from Tokyo to HCMC was on Japan Airlines which was excellent. No comparison between JAL and AA. Unfortunately that’s just the way service is in America nowadays.

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$ 108 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Air Canada and United Airlines, with prices starting from C$ 109 and C$ 113, 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: Royal Jordanian (97%), SkyWest Airlines (94%), Korean Air (93%).

  • 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$ 304, our data shows the cheapest flight currently is C$ 111. When looking at the most popular route, (Chicago O'Hare Intl - Toronto Pearson Intl), you can expect to pay C$ 215 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$ 255). 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.
O'Hare Intl to Vancouver Intl flights
O'Hare Intl to Pearson Intl flights
O'Hare Intl to Pierre Elliott Trudeau Intl flights
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Midway to Toronto Island flights
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Midway to Québec City flights
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Midway to Ottawa 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 12 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 201AverageC$ 456FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 211AverageC$ 402FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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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?

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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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