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Cheap flights from Chicago O'Hare Intl Airport to Ontario from C$ 115

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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YYZ
26 mai — 2 juin1
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 21 mai 2025.

Round-trip from

C$ 229

One-way from

C$ 115

Popular in

November

Cheapest in

April

Average price

C$ 391

Good round-trip deal

C$ 261 or less

Good one-way deal

C$ 165 or less
United Airlines
  • United Airlines
  • 20/6-21/6
  • 1 total stop
  • 14h 45m total
  • Chicago to Ontario
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Air Canada
  • Air Canada
  • 3/7
  • Nonstop
  • 1h 45m total
  • Chicago to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 37 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 May 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 21 mai 2025.

sam. 5/710:00 a.m.ORD - YYZ
Nonstop1h 45mAir Canada
sam. 12/78:15 a.m.YYZ - ORD
Nonstop1h 54mAir Canada
Deal found 21/5C$ 236
jeu. 3/71:56 p.m.ORD - YTZ
1 stop5h 40mAir Canada
jeu. 10/78:50 a.m.YTZ - ORD
1 stop4h 06mAir Canada
Deal found 21/5C$ 239
ven. 20/611:15 a.m.ORD - YYZ
1 stop9h 59mUnited Airlines
mer. 25/63:00 p.m.YYZ - ORD
1 stop8h 12mUnited Airlines
Deal found 20/5C$ 243
ven. 20/69:14 p.m.ORD - YYZ
Nonstop1h 44mMultiple Airlines
lun. 23/612:30 a.m.YYZ - ORD
1 stop8h 32mMultiple Airlines
Deal found 20/5C$ 254
mar. 10/65:29 a.m.ORD - YYZ
1 stop8h 26mAmerican Airlines
mar. 10/65:59 p.m.YYZ - ORD
1 stop5h 52mAmerican Airlines
Deal found 20/5C$ 307
mer. 18/69:00 a.m.ORD - YYZ
1 stop7h 15mDelta
mer. 25/612:14 p.m.YYZ - ORD
1 stop6h 49mDelta
Deal found 20/5C$ 323
mer. 25/68:25 p.m.ORD - YUL
1 stop4h 26mAir Canada
lun. 30/69:45 a.m.YUL - ORD
Nonstop2h 39mAir Canada
Deal found 21/5C$ 376
ven. 20/62:07 p.m.ORD - YUL
Nonstop2h 19mMultiple Airlines
dim. 22/66:15 a.m.YUL - ORD
Nonstop2h 44mMultiple Airlines
Deal found 21/5C$ 377
ven. 8/810:40 a.m.ORD - YUL
Nonstop2h 18mUnited Airlines
sam. 16/86:40 p.m.YUL - ORD
Nonstop2h 36mUnited Airlines
Deal found 21/5C$ 394
mar. 10/67:10 a.m.ORD - YUL
1 stop7h 57mDelta
mer. 11/66:45 p.m.YUL - ORD
1 stop6h 12mDelta
Deal found 21/5C$ 398
lun. 14/78:45 p.m.ORD - YUL
1 stop15h 59mAmerican Airlines
jeu. 17/72:35 p.m.YUL - ORD
1 stop5h 41mAmerican Airlines
Deal found 21/5C$ 406
jeu. 12/69:28 p.m.ORD - YTZ
1 stop18h 17mMultiple Airlines
lun. 16/69:45 a.m.YTZ - ORD
1 stop21h 52mMultiple Airlines
Deal found 21/5C$ 409

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 21 mai 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

ven. 20/6

5:55 p.m.-8:44 p.m.

Nonstop1h 49m

Toronto Pearson Intl

sam. 21/6

7:20 a.m.-7:16 p.m.

1 stop12h 56m

C$ 229

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

sam. 5/7

10:00 a.m.-12:45 p.m.

Nonstop1h 45m

Toronto Pearson Intl

sam. 12/7

8:15 a.m.-9:09 a.m.

Nonstop1h 54m

C$ 236

ChicagoToronto

ORD - YTZ

ORDYTZ

Chicago O'Hare Intl

jeu. 3/7

1:56 p.m.-8:36 p.m.

1 stop5h 40m

Toronto Island

jeu. 10/7

8:50 a.m.-11:56 a.m.

1 stop4h 06m

C$ 239

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

ven. 29/8

9:12 p.m.-11:58 p.m.

Nonstop1h 46m

Toronto Pearson Intl

lun. 1/9

10:00 a.m.-10:53 a.m.

Nonstop1h 53m

C$ 266

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

sam. 21/6

6:16 a.m.-11:59 a.m.

1 stop4h 43m

Toronto Pearson Intl

sam. 21/6

3:14 p.m.-4:09 p.m.

Nonstop1h 55m

C$ 283

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

ven. 20/6

9:00 a.m.-5:15 p.m.

1 stop7h 15m

Toronto Pearson Intl

mer. 25/6

12:14 p.m.-6:03 p.m.

1 stop6h 49m

C$ 323

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

mer. 2/7

1:56 p.m.-9:46 p.m.

1 stop6h 50m

Montreal Pierre Elliott Trudeau Intl

lun. 21/7

6:15 a.m.-7:59 a.m.

Nonstop2h 44m

C$ 370

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

ven. 29/8

11:05 a.m.-5:43 p.m.

1 stop5h 38m

Montreal Pierre Elliott Trudeau Intl

mar. 2/9

5:05 p.m.-10:20 p.m.

1 stop6h 15m

C$ 377

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

jeu. 26/6

6:00 a.m.-1:09 p.m.

1 stop6h 09m

Montreal Pierre Elliott Trudeau Intl

lun. 30/6

6:15 a.m.-7:59 a.m.

Nonstop2h 44m

C$ 384

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

mar. 10/6

7:19 a.m.-10:40 a.m.

Nonstop2h 21m

Montreal Pierre Elliott Trudeau Intl

jeu. 12/6

6:15 a.m.-7:59 a.m.

Nonstop2h 44m

C$ 388

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/5

Showing 1-10 of 49 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$ 168). Flying from Chicago O'Hare Intl Airport to Region of Ontario in July is currently the most expensive (average of C$ 257). 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 21 mai 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 21 mai 2025.

The most flights from ORD to CAON are scheduled on a Monday (62 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 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 21 mai 2025.
See what other customers who have flown with Porter Airlines, Delta 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.
Porter Airlines
8.0
Very good
286 reviews
Check prices

Crew

8.7

Entertainment

7.0

Boarding

8.2

Overall

8.0

Comfort

8.1

Food

7.6

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Porter Airlines
8.0
Very good
286 reviews
Porter Airlines
8.0
Very good
286 reviews
Check prices

Crew

8.7

Entertainment

7.0

Boarding

8.2

Overall

8.0

Comfort

8.1

Food

7.6

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Delta
8.0
Very good
7,951 reviews
Porter Airlines
8.0
Very good
286 reviews
Check prices

Crew

8.7

Entertainment

7.0

Boarding

8.2

Overall

8.0

Comfort

8.1

Food

7.6

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Aeromexico
7.5
Good
1,699 reviews
Porter Airlines
8.0
Very good
286 reviews
Check prices

Crew

8.7

Entertainment

7.0

Boarding

8.2

Overall

8.0

Comfort

8.1

Food

7.6

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
United Airlines
7.4
Good
8,745 reviews
Porter Airlines
8.0
Very good
286 reviews
Check prices

Crew

8.7

Entertainment

7.0

Boarding

8.2

Overall

8.0

Comfort

8.1

Food

7.6

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
8.0
Very good
286 reviews
Check prices

Crew

8.7

Entertainment

7.0

Boarding

8.2

Overall

8.0

Comfort

8.1

Food

7.6

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you

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$ 115 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$ 117 and C$ 119, 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 - Montreal Pierre Elliott Trudeau Intl, Chicago O'Hare Intl - Toronto Pearson 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: Finnair (100%), British Airways (100%), Royal Jordanian (97%).

  • 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$ 303, our data shows the cheapest flight currently is C$ 120. When looking at the most popular route, (Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl), you can expect to pay C$ 223 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$ 168). Flying from Chicago O'Hare Intl Airport to Region of Ontario in July is currently the most expensive (average of C$ 257). 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 Pierre Elliott Trudeau Intl flights
O'Hare Intl to Pearson Intl flights
O'Hare Intl to Calgary flights
Midway to Toronto Island flights
Midway to Pierre Elliott Trudeau Intl flights
Midway to Pearson Intl flights
O'Hare Intl to Québec City flights
O'Hare Intl to Toronto Island flights
O'Hare Intl to Ottawa flights
O'Hare Intl to Edmonton flights
O'Hare Intl to Halifax flights
O'Hare Intl to Winnipeg flights
O'Hare Intl to Abbotsford flights
Midway to Québec City flights
Midway to Ottawa flights
O'Hare Intl to St. John's flights
O'Hare Intl to Victoria flights
O'Hare Intl to Nanaimo flights
O'Hare Intl to Saskatoon flights
O'Hare Intl to Charlottetown flights
O'Hare Intl to Kelowna flights
O'Hare Intl to Hamilton flights
O'Hare Intl to Regina flights
O'Hare Intl to Prince George flights
Midway to Kelowna flights
O'Hare Intl to Yellowknife flights

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 21 mai 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 202AverageC$ 430FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 203AverageC$ 471FlexibilityNo cancel feeOn-time67%
Search Air Canada 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.

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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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