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Cheap flights from Chicago O'Hare Intl Airport to Ontario from C$ 98

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Ontario departing on 1/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to Ontario

Cheap round-trip flights

Air Canada Logo
8:25 p.m. - 11:08 p.m.ORD-YYZ
1h 43mdirect
Air Canada Logo
2:10 p.m. - 3:04 p.m.YYZ-ORD
1h 54mdirect
C$ 239Air Canada
Find Deal
Wed, 1 Oct - Wed, 8 Oct
Air Canada Logo
9:55 a.m. - 12:38 p.m.ORD-YYZ
1h 43mdirect
Air Canada Logo
12:20 p.m. - 1:14 p.m.YYZ-ORD
1h 54mdirect
C$ 240Air Canada
Find Deal
Thu, 2 Oct - Sun, 5 Oct
Air Canada Logo
9:55 a.m. - 12:38 p.m.ORD-YYZ
1h 43mdirect
Air Canada Logo
8:20 a.m. - 9:14 a.m.YYZ-ORD
1h 54mdirect
C$ 242Air Canada
Find Deal
Thu, 2 Oct - Sun, 5 Oct
United Airlines Logo
4:50 p.m. - 7:45 p.m.ORD-YYZ
1h 55mdirect
United Airlines Logo
7:40 p.m. - 7:41 a.m.YYZ-ORD
13h 01m1 stop
C$ 253United Airlines
Find Deal
Fri, 7 Nov - Mon, 10 Nov
American Airlines Logo
5:00 a.m. - 11:14 a.m.ORD-YYZ
5h 14m1 stop
American Airlines Logo
6:20 p.m. - 7:20 p.m.YYZ-ORD
2h 00mdirect
C$ 268American Airlines
Find Deal
Fri, 7 Nov - Sun, 9 Nov
United Airlines Logo
7:11 a.m. - 10:40 a.m.ORD-YUL
2h 29mdirect
United Airlines Logo
6:00 a.m. - 5:05 p.m.YUL-ORD
12h 05m1 stop
C$ 271United Airlines
Find Deal
Sat, 20 Sep - Mon, 22 Sep
British Airways Logo
6:00 a.m. - 12:04 p.m.ORD-YYZ
5h 04m1 stop
British Airways Logo
5:17 p.m. - 11:48 p.m.YYZ-ORD
7h 31m1 stop
C$ 285British Airways
Find Deal
Thu, 2 Oct - Sun, 5 Oct
Logo
7:29 p.m. - 2:05 p.m.ORD-YYZ
17h 36m1 stop
Logo
6:30 a.m. - 11:45 p.m.YYZ-ORD
18h 15m1 stop
C$ 286
Find Deal
Wed, 15 Oct - Tue, 21 Oct
American Airlines Logo
9:45 a.m. - 12:35 p.m.ORD-YYZ
1h 50mdirect
American Airlines Logo
7:10 p.m. - 11:40 p.m.YYZ-ORD
5h 30m1 stop
C$ 287American Airlines
Find Deal
Thu, 30 Oct - Mon, 3 Nov
Logo
6:00 a.m. - 12:04 p.m.ORD-YYZ
5h 04m1 stop
Logo
6:15 a.m. - 9:51 a.m.YYZ-ORD
4h 36m1 stop
C$ 294
Find Deal
Thu, 2 Oct - Sun, 5 Oct

American Airlines flights from Chicago O'Hare Intl Airport to Region of Ontario

Our best American Airlines deals on Chicago O'Hare Intl Airport to Region of Ontario flight tickets
American Airlines
7 Nov
ORD5:00 a.m.Chicago O'Hare Intl
5h 14m
1 stop
YYZ11:14 a.m.Toronto Pearson Intl
9 Nov
YYZ6:20 p.m.Toronto Pearson Intl
2h 00m
ORD7:20 p.m.Chicago O'Hare Intl
C$ 268
Find similar
American Airlines
30 Oct
ORD9:45 a.m.Chicago O'Hare Intl
1h 50m
YYZ12:35 p.m.Toronto Pearson Intl
3 Nov
YYZ7:10 p.m.Toronto Pearson Intl
5h 30m
1 stop
ORD11:40 p.m.Chicago O'Hare Intl
C$ 287
Find similar
American Airlines
7 Nov
ORD5:00 a.m.Chicago O'Hare Intl
5h 14m
1 stop
YYZ11:14 a.m.Toronto Pearson Intl
10 Nov
YYZ7:10 p.m.Toronto Pearson Intl
5h 30m
1 stop
ORD11:40 p.m.Chicago O'Hare Intl
C$ 290
Find similar

Air Canada flights from Chicago O'Hare Intl Airport to Region of Ontario

Our best Air Canada deals on Chicago O'Hare Intl Airport to Region of Ontario flight tickets
Air Canada
1 Oct
ORD8:25 p.m.Chicago O'Hare Intl
1h 43m
YYZ11:08 p.m.Toronto Pearson Intl
8 Oct
YYZ2:10 p.m.Toronto Pearson Intl
1h 54m
ORD3:04 p.m.Chicago O'Hare Intl
C$ 239
Find similar
Air Canada
2 Oct
ORD9:55 a.m.Chicago O'Hare Intl
1h 43m
YYZ12:38 p.m.Toronto Pearson Intl
5 Oct
YYZ12:20 p.m.Toronto Pearson Intl
1h 54m
ORD1:14 p.m.Chicago O'Hare Intl
C$ 240
Find similar
Air Canada
2 Oct
ORD9:55 a.m.Chicago O'Hare Intl
1h 43m
YYZ12:38 p.m.Toronto Pearson Intl
5 Oct
YYZ8:20 a.m.Toronto Pearson Intl
1h 54m
ORD9:14 a.m.Chicago O'Hare Intl
C$ 242
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Region of 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, momondo users made 96,600 searches. Data last updated 18 August 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

Fly to

Route

Depart

Return

Price

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Wed 1/10

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

Nonstop1h 43m

Toronto Pearson Intl

Wed 8/10

2:10 p.m.-3:04 p.m.

Nonstop1h 54m

C$ 239

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 2/10

9:55 a.m.-12:38 p.m.

Nonstop1h 43m

Toronto Pearson Intl

Sun 5/10

12:20 p.m.-1:14 p.m.

Nonstop1h 54m

C$ 240

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 2/10

9:55 a.m.-12:38 p.m.

Nonstop1h 43m

Toronto Pearson Intl

Sun 5/10

8:20 a.m.-9:14 a.m.

Nonstop1h 54m

C$ 242

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Fri 7/11

4:50 p.m.-7:45 p.m.

Nonstop1h 55m

Toronto Pearson Intl

Mon 10/11

7:40 p.m.-7:41 a.m.

1 stop13h 01m

C$ 253

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Fri 7/11

5:00 a.m.-11:14 a.m.

1 stop5h 14m

Toronto Pearson Intl

Sun 9/11

6:20 p.m.-7:20 p.m.

Nonstop2h 00m

C$ 268

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 20/9

7:11 a.m.-10:40 a.m.

Nonstop2h 29m

Montreal Pierre Elliott Trudeau Intl

Mon 22/9

6:00 a.m.-5:05 p.m.

1 stop12h 05m

C$ 271

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 2/10

6:00 a.m.-12:04 p.m.

1 stop5h 04m

Toronto Pearson Intl

Sun 5/10

5:17 p.m.-11:48 p.m.

1 stop7h 31m

C$ 285

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Wed 15/10

7:29 p.m.-2:05 p.m.

1 stop17h 36m

Toronto Pearson Intl

Tue 21/10

6:30 a.m.-11:45 p.m.

1 stop18h 15m

C$ 286

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 30/10

9:45 a.m.-12:35 p.m.

Nonstop1h 50m

Toronto Pearson Intl

Mon 3/11

7:10 p.m.-11:40 p.m.

1 stop5h 30m

C$ 287

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 2/10

6:00 a.m.-12:04 p.m.

1 stop5h 04m

Toronto Pearson Intl

Sun 5/10

6:15 a.m.-9:51 a.m.

1 stop4h 36m

C$ 294

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ontario from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Region of Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Region of Ontario?

In general, July is the cheapest month to fly from Chicago O'Hare Intl Airport to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 330. If you are unable to visit Region of Ontario during the month of July, then departing from Chicago O'Hare Intl Airport during the month April is also very affordable. Most momondo users find prices during this month for around C$ 374.

What is the cheapest day to depart on your flight to Region of Ontario?

The cheapest day to depart from Chicago O'Hare Intl Airport to Region of Ontario is on a Saturday. Travellers who choose to depart for Region of Ontario on a Saturday will often find tickets for as low as C$ 338. The most expensive day to fly to Region of Ontario is Monday, with ticket prices averaging around C$ 500.

What is the cheapest time of day to depart on your flight to Region of Ontario?

Our most recent data shows that the best time of day to fly to Region of Ontario is in the evening. Flights from Chicago O'Hare Intl Airport to Region of Ontario during this time can be as low as C$ 316. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 463 on average. Flights to Region of Ontario from Chicago O'Hare Intl Airport in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Chicago O'Hare Intl to Ontario flight route?

Fly from Chicago O'Hare Intl to Toronto Pearson Intl for the best Chicago O'Hare Intl - Ontario flight prices

How far in advance should I book a flight to Region of Ontario?

You are more likely to see cheaper flights to Region of Ontario from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around C$ 421 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from Chicago O'Hare Intl Airport for as low as C$ 229 on momondo.

What cabin class options are available on Chicago O'Hare Intl to Ontario flights?

There are 3 cabin classes available to choose from on Chicago O'Hare Intl to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Chicago O'Hare Intl Airport to Region of Ontario flights?

No. A direct flight is the cheapest option for a flight between Chicago O'Hare Intl Airport to Region of Ontario.

Cheap Chicago O'Hare Intl Airport to Region of Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Region of Ontario

Best price found

C$ 98

Fastest flight time

1h 39m

Direct flights

Every day

Airports in Region of Ontario

4 airports
The best one-way flight to Region of Ontario from Chicago O'Hare Intl Airport in the past 72 hours is C$ 98. The best round-trip flight deal from Chicago O'Hare Intl Airport to Region of Ontario found on momondo in the last 72 hours is C$ 239.
The fastest flight from Chicago O'Hare Intl Airport to Region of Ontario takes 1h 39m
Direct flights go from Chicago O'Hare Intl Airport to Region of Ontario every day.
There are 4 airports near Region of Ontario: Ottawa (YOW), Montreal Pierre Elliott Trudeau Intl (YUL), Toronto Pearson Intl (YYZ), Toronto Island (YTZ)
Search flight deals

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Ontario?

    Prices for flights from Chicago O'Hare Intl Airport to Ontario are refreshed on a daily basis.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Ontario?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Ontario?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Ontario.

  • What documentation or ID do you need to fly to Ontario?

    The necessary travel and health documents for your Ontario trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Chicago O'Hare Intl Airport to Region of Ontario?

Best airlines flying from Chicago O'Hare Intl Airport to Region of Ontario

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Region of Ontario with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom C$ 203Free CancellationRating
7.1
9,992 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 260Free CancellationRating
7.4
8,925 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Ontario?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Chicago.

Can I find flights from Chicago to Ontario with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Ontario from Chicago with this policy.

How can momondo help me find flights from Chicago to Ontario?

momondo helps you find the best flight between Chicago and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Chicago to Ontario right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Chicago to Ontario flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to Ontario

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