What is the cheapest airline that flies from Chicago O'Hare Intl to Ontario?

Air Canada, Air Transat, and United Airlines are the most popular carriers operating from Chicago O'Hare Intl to Ontario

Which airlines fly to Region of Ontario?

United Airlines, Air Canada and American Airlines are the top three most popular airlines that fly to Region of Ontario from Chicago O'Hare Intl Airport according to our data. United Airlines is the first choice among our users, with 45% 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.

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?

As of November 2026, there are 3 operators available to choose from 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.

C$ 164 Cheap Flights from Chicago O'Hare Intl Airport to Region of Ontario in 2026/27

Q: How many flights depart from Chicago O'Hare Intl Airport to Region of Ontario on average per week?

541 flights are operational weekly from Chicago O'Hare Intl Airport to Region of Ontario as of November 2026. The most popular departure day for this route is Fri, with 15% of flights per week taking off on this day.

Q: How many flights depart from Chicago O'Hare Intl Airport to Region of Ontario on average per day?

As of November 2026, there are 77 flights per day flying from Chicago O'Hare Intl Airport to Region of Ontario. The most common time of day flights depart is 11:00a.m., with 40% of flights taking off at noon.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago O'Hare Intl Airport to Ontario

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:40 p.m. - 11:23 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 43mdirect

8:05 a.m. - 9:08 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mdirect

C$ 370Air Canada

Mon, 7 Dec - Mon, 14 Dec

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

1h 40mdirect

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

2h 03mdirect

C$ 380Air Canada

Fri, 4 Dec - Sun, 6 Dec

7:05 a.m. - 1:46 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

5h 41m1 stop Montreal Pierre Elliott Trudeau Intl

8:05 a.m. - 9:08 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mdirect

C$ 385Air Canada

Mon, 7 Dec - Mon, 14 Dec

6:00 a.m. - 1:40 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

30h 40m2 stops Atlanta Hartsfield-Jackson Orlando

7:35 a.m. - 4:14 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

9h 39m1 stop Fort Lauderdale

C$ 387Multiple Airlines

Wed, 10 Feb - Wed, 17 Feb

2:30 p.m. - 11:55 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

8h 25m1 stop Fort Lauderdale

7:35 a.m. - 4:14 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

9h 39m1 stop Fort Lauderdale

C$ 394Multiple Airlines

Fri, 19 Feb - Tue, 23 Feb

2:30 p.m. - 11:55 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

8h 25m1 stop Fort Lauderdale

7:35 a.m. - 10:19 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

15h 44m1 stop Fort Lauderdale

C$ 398Multiple Airlines

Fri, 19 Feb - Mon, 22 Feb

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$ 446American Airlines

Wed, 2 Dec - Fri, 4 Dec

2:48 p.m. - 5:44 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 56mdirect

1:11 p.m. - 2:31 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 20mdirect

C$ 446American Airlines

Wed, 10 Feb - Tue, 16 Feb

1:12 p.m. - 6:42 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

4h 30m1 stop Washington, D.C. Dulles Intl

9:00 p.m. - 9:59 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

1h 59mdirect

C$ 481United Airlines

Mon, 12 Apr - Mon, 12 Apr

5:00 a.m. - 1:43 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

7h 43m1 stop Newark

5:30 p.m. - 6:29 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

1h 59mdirect

C$ 481United Airlines

Tue, 13 Apr - Tue, 13 Apr

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

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

2h 05mdirect

C$ 391Porter Airlines

Tue, 10 Nov - Wed, 11 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$ 398Porter Airlines

Tue, 10 Nov - Fri, 13 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$ 402Porter Airlines

Wed, 11 Nov - Fri, 13 Nov

10:15 a.m. - 12:52 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 37mdirect

8:20 a.m. - 9:23 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mdirect

C$ 466Air Canada

Tue, 10 Nov - Fri, 13 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$ 478Air Canada

Wed, 11 Nov - Wed, 11 Nov

1:55 p.m. - 4:42 p.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 47mdirect

12:05 p.m. - 1:20 p.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

2h 15mdirect

C$ 552Air Canada

Sat, 14 Nov - Sun, 15 Nov

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

1h 58mdirect

10:53 a.m. - 11:57 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 04mdirect

C$ 745United Airlines

Sat, 14 Nov - Mon, 23 Nov

7:03 a.m. - 9:47 a.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 44mdirect

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

2h 09mdirect

C$ 745United Airlines

Wed, 11 Nov - Mon, 23 Nov

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

1h 51mdirect

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

2h 20mdirect

C$ 770American Airlines

Sat, 14 Nov - Wed, 25 Nov

6:00 a.m. - 1:01 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

6h 01m1 stop New York LaGuardia

11:45 a.m. - 1:10 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 25mdirect

C$ 784American Airlines

Sat, 14 Nov - Wed, 25 Nov

Cheap direct flights

Enter your travel dates to find the best prices.

8:40 p.m. - 11:23 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 43mdirect

8:05 a.m. - 9:08 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mdirect

C$ 370Air Canada

Mon, 7 Dec - Mon, 14 Dec

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

1h 40mdirect

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

2h 03mdirect

C$ 380Air Canada

Fri, 4 Dec - Sun, 6 Dec

1:55 p.m. - 4:42 p.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 47mdirect

7:40 p.m. - 8:55 p.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

2h 15mdirect

C$ 387Air Canada

Mon, 7 Dec - Mon, 14 Dec

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

1h 45mdirect

10:35 a.m. - 11:30 a.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

1h 55mdirect

C$ 415Porter Airlines

Fri, 18 Dec - Sun, 17 Jan

6:20 p.m. - 9:00 p.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 40mdirect

10:35 a.m. - 11:30 a.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

1h 55mdirect

C$ 416Porter Airlines

Wed, 13 Jan - Tue, 19 Jan

12:20 p.m. - 3:00 p.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 40mdirect

10:35 a.m. - 11:30 a.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

1h 55mdirect

C$ 416Porter Airlines

Fri, 15 Jan - Mon, 18 Jan

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$ 446American Airlines

Wed, 2 Dec - Fri, 4 Dec

2:48 p.m. - 5:44 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 56mdirect

1:11 p.m. - 2:31 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 20mdirect

C$ 446American Airlines

Wed, 10 Feb - Tue, 16 Feb

11:05 a.m. - 2:03 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$ 501United Airlines

Thu, 3 Dec - Mon, 7 Dec

1:57 p.m. - 4:47 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 50mdirect

8:35 a.m. - 9:44 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 09mdirect

C$ 501United Airlines

Wed, 25 Nov - Mon, 30 Nov

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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

7 Dec

ORD8:40 p.m.Chicago O'Hare Intl

1h 43m

YYZ11:23 p.m.Toronto Pearson Intl

14 Dec

YYZ8:05 a.m.Toronto Pearson Intl

2h 03m

ORD9:08 a.m.Chicago O'Hare Intl

C$ 370

Air Canada

4 Dec

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

1h 40m

YYZ7:10 p.m.Toronto Pearson Intl

6 Dec

YYZ6:55 p.m.Toronto Pearson Intl

2h 03m

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

C$ 380

Air Canada

7 Dec

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

5h 41m

1 stop

YYZ1:46 p.m.Toronto Pearson Intl

14 Dec

YYZ8:05 a.m.Toronto Pearson Intl

2h 03m

ORD9:08 a.m.Chicago O'Hare Intl

C$ 385

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

Our best Lufthansa deals on Chicago O'Hare Intl Airport to Region of Ontario flight tickets

Lufthansa

4 Dec

ORD5:55 a.m.Chicago O'Hare Intl

4h 53m

1 stop

YYZ11:48 a.m.Toronto Pearson Intl

6 Dec

YYZ5:55 p.m.Toronto Pearson Intl

2h 10m

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

C$ 473

Lufthansa

16 Nov

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

1h 44m

YYZ9:47 a.m.Toronto Pearson Intl

16 Nov

YYZ2:57 p.m.Toronto Pearson Intl

7h 33m

1 stop

ORD9:30 p.m.Chicago O'Hare Intl

C$ 672

momondo Fare Finder

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

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Mon 7/12

8:40 p.m.-11:23 p.m.

Nonstop1h 43m

Toronto Pearson Intl

Mon 14/12

8:05 a.m.-9:08 a.m.

Nonstop2h 03m

C$ 370

Quickest round-trip

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Fri 4/12

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

Nonstop1h 40m

Toronto Pearson Intl

Sun 6/12

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

Nonstop2h 03m

C$ 380

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Mon 7/12

7:05 a.m.-1:46 p.m.

1 stop5h 41m

Toronto Pearson Intl

Mon 14/12

8:05 a.m.-9:08 a.m.

Nonstop2h 03m

C$ 385

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Wed 10/2

6:00 a.m.-1:40 p.m.

2 stops30h 40m

Toronto Pearson Intl

Wed 17/2

7:35 a.m.-4:14 p.m.

1 stop9h 39m

C$ 387

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Fri 19/2

2:30 p.m.-11:55 p.m.

1 stop8h 25m

Toronto Pearson Intl

Tue 23/2

7:35 a.m.-4:14 p.m.

1 stop9h 39m

C$ 394

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Fri 19/2

2:30 p.m.-11:55 p.m.

1 stop8h 25m

Toronto Pearson Intl

Mon 22/2

7:35 a.m.-10:19 p.m.

1 stop15h 44m

C$ 398

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Wed 2/12

8:00 a.m.-10:56 a.m.

Nonstop1h 56m

Toronto Pearson Intl

Fri 4/12

1:22 p.m.-2:42 p.m.

Nonstop2h 20m

C$ 446

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Wed 10/2

2:48 p.m.-5:44 p.m.

Nonstop1h 56m

Toronto Pearson Intl

Tue 16/2

1:11 p.m.-2:31 p.m.

Nonstop2h 20m

C$ 446

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Mon 12/4

1:12 p.m.-6:42 p.m.

1 stop4h 30m

Toronto Pearson Intl

Mon 12/4

9:00 p.m.-9:59 p.m.

Nonstop1h 59m

C$ 481

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Tue 13/4

5:00 a.m.-1:43 p.m.

1 stop7h 43m

Toronto Pearson Intl

Tue 13/4

5:30 p.m.-6:29 p.m.

Nonstop1h 59m

C$ 481

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 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

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 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$ 398. If you are unable to visit Region of Ontario during the month of February, 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$ 433.

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 Tuesday. Travellers who choose to depart for Region of Ontario on a Tuesday will often find tickets for as low as C$ 373. The most expensive day to fly to Region of Ontario is Monday, with ticket prices averaging around C$ 464.

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$ 369. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 477 on average. Flights to Region of Ontario from Chicago O'Hare Intl Airport at noon 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$ 477 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$ 384 on momondo.

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

There are 4 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$ 164
Fastest flight time	1h 33m
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$ 164. 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$ 370.

The fastest flight from Chicago O'Hare Intl Airport to Region of Ontario takes 1h 33m

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?
As of November 2026, there are 3 operators available to choose from 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?
Based on momondo bookings for flights between Chicago O'Hare Intl Airport and Region of Ontario, the leading plane model is De Havilland (Bombardier) DHC-8-400 Dash 8Q, making up 22.14% of the total bookings. Other popular models include Embraer 175 (Enhanced Winglets) with 13.05%, Embraer 175 with 12.11%, and Boeing 737-800 with 9.46%.

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 Airlines	PriceFrom C$ 137	Free Cancellation	Rating 7.0 12,227 reviews	Search American Airlines flights
Air Canada	PriceFrom C$ 215	Free Cancellation	Rating 7.1 11,880 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 353	Free Cancellation	Rating 7.3 10,478 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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Popular Cities in Ontario

Flights to Torontofrom C$ 155

Flights to Vancouverfrom C$ 107

Flights to Calgaryfrom C$ 82

Flights to Montrealfrom C$ 268

Flights to Winnipegfrom C$ 159

Flights to Halifaxfrom C$ 169

Flights to Ottawafrom C$ 217

Flights to Kelownafrom C$ 131

Flights to Saskatoonfrom C$ 247

Flights to St. John'sfrom C$ 308

Flights to Reginafrom C$ 313

Flights to Québec Cityfrom C$ 302

Cheap flights from Chicago O'Hare Intl Airport to Ontario from C$ 164

Find the cheapest flights from Chicago O'Hare Intl Airport to Ontario

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

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Big names, great deals

Big names, great deals

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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

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

Our best Lufthansa deals on Chicago O'Hare Intl Airport to Region of Ontario flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Ontario that are best for you.

See travel insights to Ontario from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport 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 O'Hare Intl to Ontario flight route?

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Ontario?

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

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

What is the cheapest airline that flies from Chicago O'Hare Intl to Ontario?

Which airlines fly to Region of Ontario?

How many flights depart from Chicago O'Hare Intl Airport to Region of Ontario on average per day?

How many flights depart from Chicago O'Hare Intl Airport to Region of Ontario on average per week?

Cheap Chicago O'Hare Intl Airport 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 O'Hare Intl Airport to 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

Why use momondo?

An easier way to manage your Region of Ontario trip

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Popular Cities in Ontario

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Chicago O'Hare Intl Airport flight routes

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Region of Ontario flight routes

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According to popular flight searches on momondo this year