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Cheap flights from Chicago O'Hare Intl Airport to Ontario from C$ 147

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 15/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YYZ
1 Apr — 8 Apr1
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 27 March 2025.

Round-trip from

C$ 291

One-way from

C$ 147

Popular in

March

Cheapest in

April

Average price

C$ 571

Good round-trip deal

C$ 386 or less

Good one-way deal

C$ 174 or less
Air Canada
  • Air Canada
  • 14/5-23/5
  • 4 total stops
  • 19h 49m total
  • Chicago to Ontario
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15/4
  • 15/4
  • 1 total stop
  • 22h 58m total
  • Chicago to Ontario
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 38 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 27 March 2025.

Wed 14/58:40 a.m.ORD - YTZ
2 stops8h 57mAir Canada
Fri 23/510:20 a.m.YTZ - ORD
2 stops10h 52mAir Canada
Deal found 26/3C$ 291
Sat 10/58:40 a.m.ORD - YYZ
1 stop5h 54mAir Canada
Sat 17/56:15 a.m.YYZ - ORD
1 stop4h 37mAir Canada
Deal found 26/3C$ 320
Tue 6/58:40 a.m.ORD - YUL
Nonstop2h 15mAir Canada
Tue 27/58:20 a.m.YUL - ORD
Nonstop2h 32mAir Canada
Deal found 26/3C$ 350
Thu 3/47:21 p.m.ORD - YYZ
1 stop27h 34mMultiple Airlines
Tue 8/47:05 a.m.YYZ - ORD
1 stop27h 19mMultiple Airlines
Deal found 26/3C$ 360
Tue 29/410:30 a.m.ORD - YYZ
1 stop5h 48mDelta
Tue 6/510:20 a.m.YYZ - ORD
1 stop9h 03mDelta
Deal found 26/3C$ 364
Fri 2/58:50 a.m.ORD - YYZ
1 stop4h 29mUnited Airlines
Fri 2/54:30 p.m.YYZ - ORD
Nonstop1h 54mUnited Airlines
Deal found 26/3C$ 384
Wed 23/48:30 p.m.ORD - YUL
1 stop12h 20mAmerican Airlines
Thu 24/412:30 p.m.YUL - ORD
Nonstop2h 35mAmerican Airlines
Deal found 25/3C$ 385
Sat 19/46:01 p.m.ORD - YYZ
Nonstop1h 43mLufthansa
Sun 20/412:20 p.m.YYZ - ORD
Nonstop1h 55mLufthansa
Deal found 26/3C$ 392
Wed 23/45:55 a.m.ORD - YTZ
1 stop13h 10mMultiple Airlines
Wed 30/47:45 a.m.YTZ - ORD
1 stop11h 32mMultiple Airlines
Deal found 26/3C$ 405
Thu 1/56:00 a.m.ORD - YUL
1 stop4h 45mMultiple Airlines
Thu 1/52:10 p.m.YUL - ORD
1 stop6h 20mMultiple Airlines
Deal found 25/3C$ 418
Sat 19/43:00 p.m.ORD - YYZ
Nonstop1h 35mAmerican Airlines
Sun 20/43:14 p.m.YYZ - ORD
Nonstop1h 55mAmerican Airlines
Deal found 27/3C$ 427
Wed 30/45:55 a.m.ORD - YOW
1 stop9h 00mMultiple Airlines
Tue 13/511:00 a.m.YOW - ORD
1 stop10h 07mMultiple Airlines
Deal found 25/3C$ 428

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 27 March 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

Wed 14/5

8:40 a.m.-6:37 p.m.

2 stops8h 57m

Toronto Island

Fri 23/5

10:20 a.m.-8:12 p.m.

2 stops10h 52m

C$ 291

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Sat 10/5

8:40 a.m.-3:34 p.m.

1 stop5h 54m

Toronto Pearson Intl

Sat 17/5

6:15 a.m.-9:52 a.m.

1 stop4h 37m

C$ 320

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 6/5

8:40 a.m.-11:55 a.m.

Nonstop2h 15m

Montreal Pierre Elliott Trudeau Intl

Tue 27/5

8:20 a.m.-9:52 a.m.

Nonstop2h 32m

C$ 350

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Tue 29/4

10:30 a.m.-5:18 p.m.

1 stop5h 48m

Toronto Pearson Intl

Tue 6/5

10:20 a.m.-6:23 p.m.

1 stop9h 03m

C$ 364

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Wed 7/5

5:51 a.m.-7:10 p.m.

1 stop12h 19m

Toronto Pearson Intl

Sun 11/5

4:00 p.m.-4:25 p.m.

1 stop25h 25m

C$ 374

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Fri 2/5

8:50 a.m.-2:19 p.m.

1 stop4h 29m

Toronto Pearson Intl

Fri 2/5

4:30 p.m.-5:24 p.m.

Nonstop1h 54m

C$ 384

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Wed 23/4

8:30 p.m.-9:50 a.m.

1 stop12h 20m

Montreal Pierre Elliott Trudeau Intl

Thu 24/4

12:30 p.m.-2:05 p.m.

Nonstop2h 35m

C$ 385

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Sat 19/4

6:01 p.m.-8:44 p.m.

Nonstop1h 43m

Toronto Pearson Intl

Sun 20/4

12:20 p.m.-1:15 p.m.

Nonstop1h 55m

C$ 392

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Wed 30/4

9:50 p.m.-2:54 p.m.

1 stop16h 04m

Montreal Pierre Elliott Trudeau Intl

Thu 1/5

6:40 p.m.-8:12 p.m.

Nonstop2h 32m

C$ 402

ChicagoToronto

ORD - YTZ

ORDYTZ

Chicago O'Hare Intl

Wed 23/4

5:55 a.m.-8:05 p.m.

1 stop13h 10m

Toronto Island

Wed 30/4

7:45 a.m.-6:17 p.m.

1 stop11h 32m

C$ 405

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/3

Showing 1-10 of 47 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 27 March 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 27 March 2025.

The most flights from ORD to CAON are scheduled on a Monday (55 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (10 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 27 March 2025.
See what other customers who have flown with Delta, Porter Airlines and Aeromexico from Chicago to Ontario have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,895 reviews
Check prices

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,895 reviews
Delta
8.0
Very good
7,895 reviews
Check prices

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Porter Airlines
7.9
Good
276 reviews
Delta
8.0
Very good
7,895 reviews
Check prices

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Aeromexico
7.5
Good
1,701 reviews
Delta
8.0
Very good
7,895 reviews
Check prices

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,603 reviews
Delta
8.0
Very good
7,895 reviews
Check prices

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,895 reviews
Check prices

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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$ 148 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 United Airlines and American Airlines, with prices starting from C$ 167 and C$ 183, 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 - Ottawa 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: Sun Country Air (100%), Korean Air (83%), Air New Zealand (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$ 448, our data shows the cheapest flight currently is C$ 142. When looking at the most popular route, (Chicago O'Hare Intl - Toronto Pearson Intl), you can expect to pay C$ 330 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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Midway to Québec City flights
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O'Hare Intl to Nanaimo flights
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 27 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 195AverageC$ 500FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 208AverageC$ 488FlexibilityNo 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?

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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