Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Chicago O'Hare Intl Airport to Ontario from C$ 151

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 17/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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.
Porter Airlines Logo
7:00 a.m. - 9:40 a.m.
ORD
-
YTZ
1h 40mdirect
Porter Airlines Logo
1:40 p.m. - 2:35 p.m.
YTZ
-
ORD
1h 55mdirect
C$ 323Porter Airlines
Fri, 2 Oct - Sat, 3 Oct
Air Canada Logo
9:50 a.m. - 12:35 p.m.
ORD
-
YYZ
1h 45mdirect
Air Canada Logo
4:00 p.m. - 4:57 p.m.
YYZ
-
ORD
1h 57mdirect
C$ 323Air Canada
Sat, 15 Aug - Mon, 17 Aug
Porter Airlines Logo
7:00 a.m. - 9:40 a.m.
ORD
-
YTZ
1h 40mdirect
Porter Airlines Logo
10:05 a.m. - 11:00 a.m.
YTZ
-
ORD
1h 55mdirect
C$ 324Porter Airlines
Thu, 24 Sep - Sun, 27 Sep
Air Canada Logo
5:35 p.m. - 8:20 p.m.
ORD
-
YYZ
1h 45mdirect
Air Canada Logo
8:05 a.m. - 9:00 a.m.
YYZ
-
ORD
1h 55mdirect
C$ 327Air Canada
Fri, 24 Jul - Sun, 26 Jul
Porter Airlines Logo
7:00 a.m. - 9:40 a.m.
ORD
-
YTZ
1h 40mdirect
Porter Airlines Logo
8:40 p.m. - 9:35 p.m.
YTZ
-
ORD
1h 55mdirect
C$ 327Porter Airlines
Wed, 14 Oct - Mon, 19 Oct
Air Canada Logo
3:50 p.m. - 6:34 p.m.
ORD
-
YYZ
1h 44mdirect
Air Canada Logo
12:25 p.m. - 1:22 p.m.
YYZ
-
ORD
1h 57mdirect
C$ 328Air Canada
Fri, 24 Jul - Sun, 26 Jul
Porter Airlines Logo
3:20 p.m. - 6:00 p.m.
ORD
-
YTZ
1h 40mdirect
Porter Airlines Logo
8:40 p.m. - 9:35 p.m.
YTZ
-
ORD
1h 55mdirect
C$ 330Porter Airlines
Fri, 2 Oct - Sun, 4 Oct
Porter Airlines Logo
7:00 a.m. - 9:40 a.m.
ORD
-
YTZ
1h 40mdirect
Porter Airlines Logo
10:05 a.m. - 11:00 a.m.
YTZ
-
ORD
1h 55mdirect
C$ 331Porter Airlines
Thu, 24 Sep - Mon, 28 Sep
Lufthansa Logo
9:20 p.m. - 11:59 p.m.
ORD
-
YYZ
1h 39mdirect
Lufthansa Logo
7:00 a.m. - 8:00 a.m.
YYZ
-
ORD
2h 00mdirect
C$ 353Lufthansa
Fri, 24 Jul - Sun, 26 Jul
WestJet Logo
5:30 p.m. - 5:20 a.m.
ORD
-
YXU
10h 50m
1 stop
WestJet Logo
8:40 p.m. - 4:40 p.m.
YXU
-
ORD
21h 00m
1 stop
C$ 965WestJet
Thu, 6 Aug - Thu, 13 Aug

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
15 Aug
ORD9:50 a.m.Chicago O'Hare Intl
1h 45m
YYZ12:35 p.m.Toronto Pearson Intl
17 Aug
YYZ4:00 p.m.Toronto Pearson Intl
1h 57m
ORD4:57 p.m.Chicago O'Hare Intl
C$ 323
Air Canada
24 Jul
ORD5:35 p.m.Chicago O'Hare Intl
1h 45m
YYZ8:20 p.m.Toronto Pearson Intl
26 Jul
YYZ8:05 a.m.Toronto Pearson Intl
1h 55m
ORD9:00 a.m.Chicago O'Hare Intl
C$ 327
Air Canada
24 Jul
ORD3:50 p.m.Chicago O'Hare Intl
1h 44m
YYZ6:34 p.m.Toronto Pearson Intl
26 Jul
YYZ12:25 p.m.Toronto Pearson Intl
1h 57m
ORD1:22 p.m.Chicago O'Hare Intl
C$ 328

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

Our best United Airlines deals on Chicago O'Hare Intl Airport to Region of Ontario flight tickets
United Airlines
4 Oct
ORD12:59 p.m.Chicago O'Hare Intl
1h 47m
YYZ3:46 p.m.Toronto Pearson Intl
11 Oct
YYZ9:00 p.m.Toronto Pearson Intl
2h 06m
ORD10:06 p.m.Chicago O'Hare Intl
C$ 351
United Airlines
9 Jul
ORD12:55 p.m.Chicago O'Hare Intl
1h 51m
YYZ3:46 p.m.Toronto Pearson Intl
9 Jul
YYZ7:43 p.m.Toronto Pearson Intl
4h 48m
1 stop
ORD11:31 p.m.Chicago O'Hare Intl
C$ 363
United Airlines
9 Sep
ORD12:16 p.m.Chicago O'Hare Intl
5h 44m
1 stop
YYZ7:00 p.m.Toronto Pearson Intl
15 Sep
YYZ10:15 a.m.Toronto Pearson Intl
2h 06m
ORD11:21 a.m.Chicago O'Hare Intl
C$ 365

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 26 June 2026.
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

Cheapest round-trip
Quickest round-trip

ChicagoToronto

ORD - YTZ

ORDYTZ

Chicago O'Hare Intl

Fri 2/10

7:00 a.m.-9:40 a.m.

Nonstop1h 40m

Toronto Island

Sat 3/10

1:40 p.m.-2:35 p.m.

Nonstop1h 55m

C$ 323

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Sat 15/8

9:50 a.m.-12:35 p.m.

Nonstop1h 45m

Toronto Pearson Intl

Mon 17/8

4:00 p.m.-4:57 p.m.

Nonstop1h 57m

C$ 323

ChicagoToronto

ORD - YTZ

ORDYTZ

Chicago O'Hare Intl

Thu 24/9

7:00 a.m.-9:40 a.m.

Nonstop1h 40m

Toronto Island

Sun 27/9

10:05 a.m.-11:00 a.m.

Nonstop1h 55m

C$ 324

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Fri 24/7

5:35 p.m.-8:20 p.m.

Nonstop1h 45m

Toronto Pearson Intl

Sun 26/7

8:05 a.m.-9:00 a.m.

Nonstop1h 55m

C$ 327

ChicagoToronto

ORD - YTZ

ORDYTZ

Chicago O'Hare Intl

Wed 14/10

7:00 a.m.-9:40 a.m.

Nonstop1h 40m

Toronto Island

Mon 19/10

8:40 p.m.-9:35 p.m.

Nonstop1h 55m

C$ 327

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Fri 24/7

3:50 p.m.-6:34 p.m.

Nonstop1h 44m

Toronto Pearson Intl

Sun 26/7

12:25 p.m.-1:22 p.m.

Nonstop1h 57m

C$ 328

ChicagoToronto

ORD - YTZ

ORDYTZ

Chicago O'Hare Intl

Fri 2/10

3:20 p.m.-6:00 p.m.

Nonstop1h 40m

Toronto Island

Sun 4/10

8:40 p.m.-9:35 p.m.

Nonstop1h 55m

C$ 330

ChicagoToronto

ORD - YTZ

ORDYTZ

Chicago O'Hare Intl

Thu 24/9

7:00 a.m.-9:40 a.m.

Nonstop1h 40m

Toronto Island

Mon 28/9

10:05 a.m.-11:00 a.m.

Nonstop1h 55m

C$ 331

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Fri 24/7

9:20 p.m.-11:59 p.m.

Nonstop1h 39m

Toronto Pearson Intl

Sun 26/7

7:00 a.m.-8:00 a.m.

Nonstop2h 00m

C$ 353

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 6/8

5:30 p.m.-5:20 a.m.

1 stop10h 50m

London

Thu 13/8

8:40 p.m.-4:40 p.m.

1 stop21h 00m

C$ 965

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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, November 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$ 82. If you are unable to visit Region of Ontario during the month of November, then departing from Chicago O'Hare Intl Airport during the month October is also very affordable. Most momondo users find prices during this month for around C$ 105.

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$ 172. The most expensive day to fly to Region of Ontario is Monday, with ticket prices averaging around C$ 468.

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$ 268. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 489 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 Island for the best Chicago O'Hare Intl - Ontario flight prices

How far in advance should I book a flight from Chicago O'Hare Intl Airport to 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$ 445 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$ 377 on momondo.

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

There are 3 cabin classes available to choose from on Chicago O'Hare Intl Airport to Region of 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$ 171

Fastest flight time

1h 39m

Direct flights

Every day

Airports in Region of Ontario

125 airports
The best one-way flight to Region of Ontario from Chicago O'Hare Intl Airport in the past 72 hours is C$ 171. 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$ 119.
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 125 airports in Region of Ontario. From Chicago O'Hare Intl Airport there are direct flights to Toronto Pearson Intl (YYZ), Toronto Island (YTZ).
Search flight deals

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Ontario

  • 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
United AirlinesPriceFrom C$ 269Free CancellationRating
7.4
9,892 reviews
Search United Airlines flights
Air CanadaPriceFrom C$ 293Free CancellationRating
7.1
11,260 reviews
Search Air Canada 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.

An easier way to manage your Region of Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 26/7
Sun 2/8
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ontario

Popular Cities in Ontario

Popular flights according to clicks in the last 7 days on momondo
Flights to Torontofrom C$ 129
Flights to Vancouverfrom C$ 107
Flights to Montrealfrom C$ 282
Flights to Calgaryfrom C$ 129
Flights to Winnipegfrom C$ 135
Flights to Ottawafrom C$ 203
Flights to Halifaxfrom C$ 162
Flights to Kelownafrom C$ 128
Flights to Saskatoonfrom C$ 210
Flights to St. John'sfrom C$ 276
Flights to Reginafrom C$ 270
Flights to Québec Cityfrom C$ 323