Which airlines fly to Region of Ontario?

Air Canada, United Airlines and American Airlines are the top three most popular airlines that fly to Region of Ontario from Chicago according to our data. Air Canada is the first choice among our users, with 43% of people opting to fly with this airline when travelling to Region of Ontario. Keep in mind that there are 3 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

How many flights depart from Chicago to Region of Ontario on average per week?

The number of flights available between Chicago and Region of Ontario is 517 per week as of November 2026. The most frequent departure day is Mon, with 16% of weekly flights leaving on this day.

How many flights depart from Chicago to Region of Ontario on average per day?

73 flights are operational daily from Chicago to Region of Ontario as of November 2026. The most popular departure time for this route is 11:00a.m., with 39% of flights per day taking off at noon.

What is the cheapest airline that flies from Chicago to Ontario?

Air Canada, Air Transat, and Delta are the most popular carriers operating from Chicago to Ontario

When did momondo last update prices for flights from Chicago to Ontario?

Prices for flights from Chicago to Ontario refresh daily.

How many operators does momondo search for flights from Chicago to Ontario?

The number of operators available for flights from Chicago to Ontario is 3 as of November 2026.

How old do you have to be to fly from Chicago to Ontario?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago 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.

C$ 172 Cheap Flights from Chicago to Ontario in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago to Ontario

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:25 a.m. - 11:55 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

14h 30m1 stop Fort Lauderdale

4:20 p.m. - 4:14 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

24h 54m1 stop Fort Lauderdale

C$ 386Multiple Airlines

Fri, 22 Jan - Sun, 31 Jan

10:00 a.m. - 3:20 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

28h 20m2 stops Dallas/Fort Worth Fort Lauderdale

4:20 p.m. - 4:14 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

24h 54m1 stop Fort Lauderdale

C$ 393Multiple Airlines

Tue, 15 Dec - Wed, 13 Jan

8:25 a.m. - 11:55 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

14h 30m1 stop Fort Lauderdale

4:20 p.m. - 4:14 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

24h 54m1 stop Fort Lauderdale

C$ 400Multiple Airlines

Thu, 21 Jan - Sun, 31 Jan

4:30 p.m. - 7:10 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 40mdirect

4:30 p.m. - 5:43 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 13mdirect

C$ 443Air Canada

Mon, 30 Nov - Mon, 7 Dec

4:30 p.m. - 7:10 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 40mdirect

4:30 p.m. - 5:43 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 13mdirect

C$ 446Air Canada

Sat, 14 Nov - Mon, 16 Nov

8:55 p.m. - 11:37 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 42mdirect

6:55 p.m. - 7:58 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mdirect

C$ 447Air Canada

Wed, 16 Dec - Wed, 23 Dec

5:55 a.m. - 11:48 a.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

4h 53m1 stop Newark

3:35 p.m. - 4:44 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 09mdirect

C$ 519United Airlines

Wed, 25 Nov - Wed, 25 Nov

5:00 a.m. - 11:48 a.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

5h 48m1 stop Newark

3:35 p.m. - 4:44 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 09mdirect

C$ 519United Airlines

Tue, 24 Nov - Tue, 24 Nov

2:50 p.m. - 5:43 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 53mdirect

7:14 a.m. - 8:44 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 30mdirect

C$ 523American Airlines

Tue, 15 Dec - Fri, 18 Dec

8:00 a.m. - 10:50 a.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 50mdirect

7:09 a.m. - 8:39 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 30mdirect

C$ 523American Airlines

Mon, 16 Nov - Mon, 23 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

12:15 p.m. - 3:00 p.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 45mdirect

4:35 p.m. - 5:40 p.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mdirect

C$ 377Porter Airlines

Tue, 3 Nov - Thu, 5 Nov

8:45 a.m. - 11:27 a.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 42mdirect

2:35 p.m. - 3:38 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mdirect

C$ 440Air Canada

Tue, 3 Nov - Tue, 3 Nov

8:45 a.m. - 11:27 a.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 42mdirect

6:55 p.m. - 7:58 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mdirect

C$ 489Air Canada

Wed, 4 Nov - Wed, 11 Nov

8:45 p.m. - 11:46 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

2h 01mdirect

1:17 p.m. - 2:37 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 20mdirect

C$ 516Qantas Airways

Tue, 3 Nov - Tue, 10 Nov

12:15 p.m. - 3:00 p.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 45mdirect

10:29 a.m. - 11:34 a.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mdirect

C$ 542Porter Airlines

Wed, 4 Nov - Tue, 10 Nov

2:50 p.m. - 5:41 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 51mdirect

1:17 p.m. - 2:37 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 20mdirect

C$ 763American Airlines

Wed, 4 Nov - Wed, 18 Nov

8:45 a.m. - 11:27 a.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 42mdirect

4:30 p.m. - 5:43 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 13mdirect

C$ 872Air Canada

Thu, 5 Nov - Mon, 16 Nov

4:40 p.m. - 10:36 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

4h 56m1 stop Charlotte Douglas

3:15 p.m. - 4:35 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 20mdirect

C$ 890American Airlines

Sat, 7 Nov - Sat, 21 Nov

8:50 a.m. - 2:25 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

4h 35m1 stop Washington, D.C. Dulles Intl

5:55 p.m. - 7:05 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 10mdirect

C$ 917United Airlines

Sun, 8 Nov - Sun, 15 Nov

7:00 a.m. - 5:49 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

9h 49m1 stop Newark

9:00 p.m. - 7:43 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

11h 43m1 stop Washington, D.C. Reagan-National

C$ 1,219United Airlines

Sat, 7 Nov - Sat, 7 Nov

Cheap direct flights

Enter your travel dates to find the best prices.

12:15 p.m. - 3:00 p.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 45mdirect

4:35 p.m. - 5:40 p.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mdirect

C$ 432Porter Airlines

Fri, 4 Dec - Fri, 11 Dec

12:15 p.m. - 3:00 p.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 45mdirect

4:35 p.m. - 5:40 p.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mdirect

C$ 433Porter Airlines

Sat, 14 Nov - Mon, 16 Nov

6:20 p.m. - 9:05 p.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 45mdirect

10:29 a.m. - 11:34 a.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mdirect

C$ 436Porter Airlines

Sat, 14 Nov - Mon, 16 Nov

4:30 p.m. - 7:10 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 40mdirect

4:30 p.m. - 5:43 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 13mdirect

C$ 443Air Canada

Mon, 30 Nov - Mon, 7 Dec

4:30 p.m. - 7:10 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 40mdirect

4:30 p.m. - 5:43 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 13mdirect

C$ 446Air Canada

Sat, 14 Nov - Mon, 16 Nov

8:55 p.m. - 11:37 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 42mdirect

6:55 p.m. - 7:58 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mdirect

C$ 447Air Canada

Wed, 16 Dec - Wed, 23 Dec

8:00 a.m. - 10:56 a.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 56mdirect

1:22 p.m. - 2:42 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 20mdirect

C$ 523American Airlines

Wed, 2 Dec - Fri, 4 Dec

8:00 a.m. - 10:50 a.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 50mdirect

6:21 p.m. - 7:41 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 20mdirect

C$ 523American Airlines

Mon, 16 Nov - Tue, 17 Nov

3:47 p.m. - 6:45 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 58mdirect

7:26 p.m. - 8:48 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 22mdirect

C$ 538United Airlines

Thu, 3 Dec - Sun, 6 Dec

6:17 p.m. - 9:15 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 58mdirect

6:45 a.m. - 7:54 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 09mdirect

C$ 538United Airlines

Mon, 23 Nov - Mon, 14 Dec

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Air Canada flights from Chicago to Region of Ontario

Our best Air Canada deals on Chicago to Region of Ontario flight tickets

Air Canada

30 Nov

ORD4:30 p.m.Chicago O'Hare Intl

1h 40m

YYZ7:10 p.m.Toronto Pearson Intl

7 Dec

YYZ4:30 p.m.Toronto Pearson Intl

2h 13m

ORD5:43 p.m.Chicago O'Hare Intl

C$ 443

Air Canada

14 Nov

ORD4:30 p.m.Chicago O'Hare Intl

1h 40m

YYZ7:10 p.m.Toronto Pearson Intl

16 Nov

YYZ4:30 p.m.Toronto Pearson Intl

2h 13m

ORD5:43 p.m.Chicago O'Hare Intl

C$ 446

Air Canada

3 Dec

ORD8:45 a.m.Chicago O'Hare Intl

1h 42m

YYZ11:27 a.m.Toronto Pearson Intl

6 Dec

YYZ6:55 p.m.Toronto Pearson Intl

2h 03m

ORD7:58 p.m.Chicago O'Hare Intl

C$ 447

Lufthansa flights from Chicago to Region of Ontario

Our best Lufthansa deals on Chicago to Region of Ontario flight tickets

Lufthansa

3 Dec

ORD6:17 p.m.Chicago O'Hare Intl

1h 58m

YYZ9:15 p.m.Toronto Pearson Intl

6 Dec

YYZ5:55 p.m.Toronto Pearson Intl

2h 10m

ORD7:05 p.m.Chicago O'Hare Intl

C$ 488

Lufthansa

12 Nov

ORD1:57 p.m.Chicago O'Hare Intl

1h 50m

YYZ4:47 p.m.Toronto Pearson Intl

15 Nov

YYZ8:35 a.m.Toronto Pearson Intl

2h 09m

ORD9:44 a.m.Chicago O'Hare Intl

C$ 502

Lufthansa

13 Nov

ORD7:03 a.m.Chicago O'Hare Intl

1h 44m

YYZ9:47 a.m.Toronto Pearson Intl

15 Nov

YYZ8:35 a.m.Toronto Pearson Intl

2h 09m

ORD9:44 a.m.Chicago O'Hare Intl

C$ 503

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Fri 22/1

8:25 a.m.-11:55 p.m.

1 stop14h 30m

Toronto Pearson Intl

Sun 31/1

4:20 p.m.-4:14 p.m.

1 stop24h 54m

C$ 386

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Tue 15/12

10:00 a.m.-3:20 p.m.

2 stops28h 20m

Toronto Pearson Intl

Wed 13/1

4:20 p.m.-4:14 p.m.

1 stop24h 54m

C$ 393

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Thu 21/1

8:25 a.m.-11:55 p.m.

1 stop14h 30m

Toronto Pearson Intl

Sun 31/1

4:20 p.m.-4:14 p.m.

1 stop24h 54m

C$ 400

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Mon 30/11

4:30 p.m.-7:10 p.m.

Nonstop1h 40m

Toronto Pearson Intl

Mon 7/12

4:30 p.m.-5:43 p.m.

Nonstop2h 13m

C$ 443

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Sat 14/11

4:30 p.m.-7:10 p.m.

Nonstop1h 40m

Toronto Pearson Intl

Mon 16/11

4:30 p.m.-5:43 p.m.

Nonstop2h 13m

C$ 446

Quickest round-trip

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Wed 16/12

8:55 p.m.-11:37 p.m.

Nonstop1h 42m

Toronto Pearson Intl

Wed 23/12

6:55 p.m.-7:58 p.m.

Nonstop2h 03m

C$ 447

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Wed 25/11

5:55 a.m.-11:48 a.m.

1 stop4h 53m

Toronto Pearson Intl

Wed 25/11

3:35 p.m.-4:44 p.m.

Nonstop2h 09m

C$ 519

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Tue 24/11

5:00 a.m.-11:48 a.m.

1 stop5h 48m

Toronto Pearson Intl

Tue 24/11

3:35 p.m.-4:44 p.m.

Nonstop2h 09m

C$ 519

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Tue 15/12

2:50 p.m.-5:43 p.m.

Nonstop1h 53m

Toronto Pearson Intl

Fri 18/12

7:14 a.m.-8:44 a.m.

Nonstop2h 30m

C$ 523

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Mon 16/11

8:00 a.m.-10:50 a.m.

Nonstop1h 50m

Toronto Pearson Intl

Mon 23/11

7:09 a.m.-8:39 a.m.

Nonstop2h 30m

C$ 523

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Chicago 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

Prices

Airlines

Other information

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

In general, February is the cheapest month to fly from Chicago to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 412. If you are unable to visit Region of Ontario during the month of February, then departing from Chicago during the month June is also very affordable. Most momondo users find prices during this month for around C$ 425.

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

The cheapest day to depart from Chicago to Region of Ontario is on a Tuesday. Travellers who choose to depart for Region of Ontario on a Tuesday will often find tickets for as low as C$ 369. The most expensive day to fly to Region of Ontario is Monday, with ticket prices averaging around C$ 460.

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 to Region of Ontario during this time can be as low as C$ 365. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 473 on average. Flights to Region of Ontario from Chicago at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Chicago to Ontario flight route?

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

How far in advance should I book a flight from Chicago to Ontario?

You are more likely to see cheaper flights to Region of Ontario from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around C$ 474 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 for as low as C$ 380 on momondo.

What cabin class options are available on Chicago to Region of Ontario flights?

There are 4 cabin classes available to choose from on Chicago 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 to Region of Ontario flights?

No. A direct flight is the cheapest option for a flight between Chicago to Region of Ontario.

Cheap Chicago to Region of Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Region of Ontario

Best price found	C$ 172
Fastest flight time	1h 37m
Direct flights	Every day
Airports in Region of Ontario	125 airports

The best one-way flight to Region of Ontario from Chicago in the past 72 hours is C$ 172. The best round-trip flight deal from Chicago to Region of Ontario found on momondo in the last 72 hours is C$ 386.

The fastest flight from Chicago to Region of Ontario takes 1h 37m

Direct flights go from Chicago to Region of Ontario every day.

There are 125 airports in Region of Ontario. From Chicago there are direct flights to Toronto Pearson Intl (YYZ), Toronto Island (YTZ).

Search flight deals

Frequently asked questions about flying from Chicago to Ontario

When did momondo last update prices for flights from Chicago to Ontario?
Prices for flights from Chicago to Ontario refresh daily.
How many operators does momondo search for flights from Chicago to Ontario?
The number of operators available for flights from Chicago to Ontario is 3 as of November 2026.
How old do you have to be to fly from Chicago to Ontario?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago 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 to Region of Ontario?
momondo data reveals that the most frequently booked plane model on the route from Chicago to Region of Ontario is De Havilland (Bombardier) DHC-8-400 Dash 8Q, representing 24.21% of all bookings. The subsequent popular models are Embraer 175 (Enhanced Winglets) at 12.17%, Embraer 175 at 12.08%, and Boeing 737-800 at 8.49%.

Best airlines flying from Chicago to Region of Ontario

Compare and see reviews for airlines that fly from Chicago to Region of Ontario with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom C$ 136	Free Cancellation	Rating 7.0 12,223 reviews	Search American Airlines flights
Air Canada	PriceFrom C$ 213	Free Cancellation	Rating 7.1 11,847 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 350	Free Cancellation	Rating 7.3 10,463 reviews	Search United Airlines flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Ontario for you.

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

Yes. momondo allows you to filter the results for Chicago to Ontario flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ontario from Chicago.

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

Yes. momondo can track prices for Chicago to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Popular Cities in Ontario

Flights to Torontofrom C$ 148

Flights to Vancouverfrom C$ 108

Flights to Calgaryfrom C$ 73

Flights to Montrealfrom C$ 253

Flights to Winnipegfrom C$ 152

Flights to Halifaxfrom C$ 161

Flights to Ottawafrom C$ 254

Flights to Kelownafrom C$ 137

Flights to Saskatoonfrom C$ 249

Flights to St. John'sfrom C$ 296

Flights to Reginafrom C$ 201

Flights to Québec Cityfrom C$ 321

Cheap flights from Chicago to Ontario from C$ 172

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 to Ontario departing on 12/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Chicago to Ontario

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Cheap last-minute flights

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Air Canada flights from Chicago to Region of Ontario

Our best Air Canada deals on Chicago to Region of Ontario flight tickets

Lufthansa flights from Chicago to Region of Ontario

Our best Lufthansa deals on Chicago to Region of Ontario flight tickets

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Use the filters below to find and compare flights from Chicago to Ontario that are best for you.

See travel insights to Ontario from

How to get the cheapest flight ticket from Chicago to Region of Ontario

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

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

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

What is the cheapest Chicago to Ontario flight route?

How far in advance should I book a flight from Chicago to Ontario?

What cabin class options are available on Chicago to Region of Ontario flights?

Can stopping save me money on Chicago to Region of Ontario flights?

What is the cheapest airline that flies from Chicago to Ontario?

Which airlines fly to Region of Ontario?

How many flights depart from Chicago to Region of Ontario on average per day?

How many flights depart from Chicago to Region of Ontario on average per week?

Cheap Chicago to Region of Ontario flight deals and tips

Best price found

Fastest flight time

Direct flights

Airports in Region of Ontario

Frequently asked questions about flying from Chicago to Ontario

Best airlines flying from Chicago to Region of Ontario

Compare and see reviews for airlines that fly from Chicago to Region of Ontario with momondo

Why use momondo?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Ontario

Popular Cities in Ontario

Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

Region of Ontario flight routes

According to popular flight searches on momondo this year

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