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Cheap flights from Chicago O'Hare Intl Airport to Ontario from C$ 88

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 26/2. 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

Enter your travel dates to find the best prices.
Air Canada Logo
10:00 a.m. - 12:40 p.m.
ORD
-
YYZ
1h 40mdirect
Air Canada Logo
2:15 p.m. - 3:10 p.m.
YYZ
-
ORD
1h 55mdirect
C$ 253Air Canada
Wed, 28 Jan - Wed, 4 Feb
American Airlines Logo
8:14 a.m. - 10:56 a.m.
ORD
-
YYZ
1h 42mdirect
American Airlines Logo
6:00 a.m. - 7:15 a.m.
YYZ
-
ORD
2h 15mdirect
C$ 255American Airlines
Thu, 19 Feb - Sun, 22 Feb
Multiple Airlines Logo
8:43 p.m. - 2:40 p.m.
ORD
-
YYZ
16h 57m1 stop
Multiple Airlines Logo
12:05 p.m. - 1:01 p.m.
YYZ
-
ORD
1h 56mdirect
C$ 256Multiple Airlines
Thu, 5 Feb - Sun, 8 Feb
Multiple Airlines Logo
7:00 a.m. - 11:54 p.m.
ORD
-
YYZ
15h 54m1 stop
Multiple Airlines Logo
12:15 p.m. - 9:03 p.m.
YYZ
-
ORD
33h 48m3 stops
C$ 262Multiple Airlines
Fri, 23 Jan - Sun, 25 Jan
American Airlines Logo
8:19 a.m. - 3:30 p.m.
ORD
-
YYZ
6h 11m1 stop
American Airlines Logo
6:18 p.m. - 7:18 p.m.
YYZ
-
ORD
2h 00mdirect
C$ 268American Airlines
Fri, 13 Feb - Sun, 15 Feb
United Airlines Logo
6:00 a.m. - 1:43 p.m.
ORD
-
YYZ
6h 43m1 stop
United Airlines Logo
5:30 p.m. - 6:40 p.m.
YYZ
-
ORD
2h 10mdirect
C$ 271United Airlines
Thu, 19 Feb - Thu, 19 Feb
Air Canada Logo
2:00 p.m. - 4:39 p.m.
ORD
-
YYZ
1h 39mdirect
Air Canada Logo
6:40 p.m. - 10:59 p.m.
YYZ
-
ORD
5h 19m1 stop
C$ 281Air Canada
Thu, 5 Feb - Mon, 9 Feb
Delta Logo
3:21 p.m. - 11:59 p.m.
ORD
-
YUL
7h 38m1 stop
Delta Logo
7:00 a.m. - 4:54 p.m.
YUL
-
ORD
10h 54m1 stop
C$ 326Delta
Sat, 14 Feb - Sat, 21 Feb
WestJet Logo
5:30 p.m. - 12:40 a.m.
ORD
-
YHM
30h 10m1 stop
WestJet Logo
6:00 a.m. - 4:43 p.m.
YHM
-
ORD
11h 43m1 stop
C$ 417WestJet
Wed, 20 May - Mon, 25 May
WestJet Logo
5:30 p.m. - 12:40 a.m.
ORD
-
YHM
30h 10m1 stop
WestJet Logo
6:00 a.m. - 4:43 p.m.
YHM
-
ORD
11h 43m1 stop
C$ 419WestJet
Tue, 9 Jun - Thu, 11 Jun

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

Our best Delta deals on Chicago O'Hare Intl Airport to Region of Ontario flight tickets
Delta
5 Feb
ORD10:29 a.m.Chicago O'Hare Intl
5h 54m
1 stop
YYZ5:23 p.m.Toronto Pearson Intl
9 Feb
YYZ10:05 a.m.Toronto Pearson Intl
7h 33m
1 stop
ORD4:38 p.m.Chicago O'Hare Intl
C$ 322
Find similar
Delta
14 Feb
ORD3:21 p.m.Chicago O'Hare Intl
7h 38m
1 stop
YUL11:59 p.m.Montreal Pierre Elliott Trudeau Intl
21 Feb
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
10h 54m
1 stop
ORD4:54 p.m.Chicago O'Hare Intl
C$ 326
Find similar
Delta
21 Feb
ORD6:30 a.m.Chicago O'Hare Intl
4h 32m
1 stop
YUL12:02 p.m.Montreal Pierre Elliott Trudeau Intl
22 Feb
YUL6:00 p.m.Montreal Pierre Elliott Trudeau Intl
6h 57m
1 stop
ORD11:57 p.m.Chicago O'Hare Intl
C$ 394
Find similar

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
19 Feb
ORD8:14 a.m.Chicago O'Hare Intl
1h 42m
YYZ10:56 a.m.Toronto Pearson Intl
22 Feb
YYZ6:29 p.m.Toronto Pearson Intl
2h 00m
ORD7:29 p.m.Chicago O'Hare Intl
C$ 255
Find similar
American Airlines
13 Feb
ORD8:19 a.m.Chicago O'Hare Intl
6h 11m
1 stop
YYZ3:30 p.m.Toronto Pearson Intl
15 Feb
YYZ6:18 p.m.Toronto Pearson Intl
2h 00m
ORD7:18 p.m.Chicago O'Hare Intl
C$ 268
Find similar
American Airlines
2 Feb
ORD5:26 p.m.Chicago O'Hare Intl
4h 33m
1 stop
YUL10:59 p.m.Montreal Pierre Elliott Trudeau Intl
4 Feb
YUL3:50 p.m.Montreal Pierre Elliott Trudeau Intl
3h 00m
ORD5:50 p.m.Chicago O'Hare Intl
C$ 273
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 16 December 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 28/1

10:00 a.m.-12:40 p.m.

Nonstop1h 40m

Toronto Pearson Intl

Wed 4/2

2:15 p.m.-3:10 p.m.

Nonstop1h 55m

C$ 253

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 19/2

8:14 a.m.-10:56 a.m.

Nonstop1h 42m

Toronto Pearson Intl

Sun 22/2

6:00 a.m.-7:15 a.m.

Nonstop2h 15m

C$ 255

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 5/2

8:43 p.m.-2:40 p.m.

1 stop16h 57m

Toronto Pearson Intl

Sun 8/2

12:05 p.m.-1:01 p.m.

Nonstop1h 56m

C$ 256

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Fri 23/1

7:00 a.m.-11:54 p.m.

1 stop15h 54m

Toronto Pearson Intl

Sun 25/1

12:15 p.m.-9:03 p.m.

3 stops33h 48m

C$ 262

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Fri 13/2

8:19 a.m.-3:30 p.m.

1 stop6h 11m

Toronto Pearson Intl

Sun 15/2

6:18 p.m.-7:18 p.m.

Nonstop2h 00m

C$ 268

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 19/2

6:00 a.m.-1:43 p.m.

1 stop6h 43m

Toronto Pearson Intl

Thu 19/2

5:30 p.m.-6:40 p.m.

Nonstop2h 10m

C$ 271

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 5/2

2:00 p.m.-4:39 p.m.

Nonstop1h 39m

Toronto Pearson Intl

Mon 9/2

6:40 p.m.-10:59 p.m.

1 stop5h 19m

C$ 281

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 14/2

3:21 p.m.-11:59 p.m.

1 stop7h 38m

Montreal Pierre Elliott Trudeau Intl

Sat 21/2

7:00 a.m.-4:54 p.m.

1 stop10h 54m

C$ 326

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Wed 20/5

5:30 p.m.-12:40 a.m.

1 stop30h 10m

Hamilton

Mon 25/5

6:00 a.m.-4:43 p.m.

1 stop11h 43m

C$ 417

ChicagoHamilton

ORD - YHM

ORDYHM

Chicago O'Hare Intl

Tue 9/6

5:30 p.m.-12:40 a.m.

1 stop30h 10m

Hamilton

Thu 11/6

6:00 a.m.-4:43 p.m.

1 stop11h 43m

C$ 419

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$ 329. 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 September is also very affordable. Most momondo users find prices during this month for around C$ 333.

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 Thursday. Travellers who choose to depart for Region of Ontario on a Thursday will often find tickets for as low as C$ 329. The most expensive day to fly to Region of Ontario is Monday, with ticket prices averaging around C$ 461.

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 afternoon. Flights from Chicago O'Hare Intl Airport to Region of Ontario during this time can be as low as C$ 298. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 462 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$ 409 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$ 209 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$ 184

Fastest flight time

1h 35m

Direct flights

Every day

Airports in Region of Ontario

123 airports
The best one-way flight to Region of Ontario from Chicago O'Hare Intl Airport in the past 72 hours is C$ 184. 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$ 284.
The fastest flight from Chicago O'Hare Intl Airport to Region of Ontario takes 1h 35m
Direct flights go from Chicago O'Hare Intl Airport to Region of Ontario every day.
There are 123 airports in Region of Ontario. From Chicago O'Hare Intl Airport there are direct flights to 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
American AirlinesPriceFrom C$ 150Free CancellationRating
7.2
11,047 reviews
Search American Airlines flights
Air CanadaPriceFrom C$ 203Free CancellationRating
7.1
10,527 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 259Free CancellationRating
7.4
9,094 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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