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 49% 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.

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

Air Canada, Porter Airlines, and United Airlines are the most popular carriers operating from Chicago O'Hare Intl 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 August 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$ 148 Cheap Flights from Chicago O'Hare Intl Airport to Region of Ontario in 2026

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

627 flights are operational weekly from Chicago O'Hare Intl Airport to Region of Ontario as of August 2026. The most popular departure day for this route is Fri, with 19% 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 August 2026, there are 89 flights per day flying from Chicago O'Hare Intl Airport to Region of Ontario. The most common time of day flights depart is 10:00a.m., with 39% 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.

11:15 a.m. - 2:30 p.m.ORD Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl

2h 15mdirect

4:30 p.m. - 8:41 p.m.YUL Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl

5h 11m1 stop Toronto Island

C$ 321Air Canada

Mon, 28 Sep - Mon, 28 Sep

7:25 a.m. - 10:07 a.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 42mdirect

12:20 p.m. - 8:12 p.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

8h 52m2 stops Ottawa Montreal Pierre Elliott Trudeau Intl

C$ 328Air Canada

Sat, 26 Sep - Sat, 26 Sep

7:25 a.m. - 10:07 a.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 42mdirect

12:20 p.m. - 8:12 p.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

8h 52m2 stops Ottawa Montreal Pierre Elliott Trudeau Intl

C$ 328Air Canada

Fri, 25 Sep - Fri, 25 Sep

6:30 a.m. - 2:19 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

6h 49m1 stop Washington, D.C. Dulles Intl

5:27 p.m. - 6:30 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mdirect

C$ 333United Airlines

Tue, 1 Sep - Tue, 1 Sep

8:50 a.m. - 11:49 a.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 59mdirect

11:00 a.m. - 12:00 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 00mdirect

C$ 334Lufthansa

Thu, 10 Sep - Sun, 13 Sep

12:59 p.m. - 3:46 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 47mdirect

11:00 a.m. - 12:00 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 00mdirect

C$ 339Lufthansa

Thu, 10 Sep - Mon, 14 Sep

2:52 p.m. - 5:56 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

2h 04mdirect

8:00 p.m. - 12:28 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

5h 28m1 stop Newark

C$ 341United Airlines

Thu, 17 Sep - Thu, 17 Sep

7:09 a.m. - 9:54 a.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 45mdirect

12:45 p.m. - 4:29 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

4h 44m1 stop Washington, D.C. Dulles Intl

C$ 341United Airlines

Thu, 17 Sep - Thu, 17 Sep

4:00 p.m. - 11:46 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

6h 46m1 stop Philadelphia

6:30 a.m. - 7:40 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 10mdirect

C$ 367American Airlines

Fri, 11 Sep - Sun, 13 Sep

5:48 p.m. - 11:46 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

4h 58m1 stop Philadelphia

6:30 a.m. - 7:40 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 10mdirect

C$ 367American Airlines

Fri, 11 Sep - Sun, 13 Sep

Cheap last-minute flights

Enter your travel dates to find the best prices.

7:25 a.m. - 10:18 a.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 53mdirect

7:35 p.m. - 8:41 p.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

2h 06mdirect

C$ 460Air Canada

Sat, 15 Aug - Wed, 19 Aug

7:25 a.m. - 10:18 a.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 53mdirect

12:15 p.m. - 1:21 p.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

2h 06mdirect

C$ 472Air Canada

Tue, 11 Aug - Wed, 19 Aug

7:25 a.m. - 10:18 a.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 53mdirect

12:15 p.m. - 1:21 p.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

2h 06mdirect

C$ 511Air Canada

Thu, 13 Aug - Wed, 19 Aug

8:32 p.m. - 11:29 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 57mdirect

7:20 a.m. - 8:30 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 10mdirect

C$ 599Porter Airlines

Wed, 12 Aug - Wed, 26 Aug

8:32 p.m. - 11:29 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 57mdirect

7:20 a.m. - 8:30 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 10mdirect

C$ 602Porter Airlines

Wed, 12 Aug - Wed, 19 Aug

6:59 a.m. - 11:19 a.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

3h 20m1 stop Detroit Metropolitan Wayne County

12:08 p.m. - 4:14 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

5h 06m1 stop Detroit Metropolitan Wayne County

C$ 603Delta

Thu, 13 Aug - Sat, 12 Sep

5:53 p.m. - 8:44 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 51mdirect

5:27 p.m. - 6:30 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mdirect

C$ 704United Airlines

Sat, 15 Aug - Thu, 20 Aug

12:59 p.m. - 3:46 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 47mdirect

2:45 p.m. - 3:51 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 06mdirect

C$ 704United Airlines

Tue, 11 Aug - Thu, 20 Aug

3:05 p.m. - 11:00 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

6h 55m1 stop New York LaGuardia

5:25 p.m. - 10:11 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

5h 46m1 stop Washington, D.C. Reagan-National

C$ 709American Airlines

Wed, 12 Aug - Wed, 19 Aug

8:32 p.m. - 11:29 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 57mdirect

11:39 a.m. - 12:44 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 05mdirect

C$ 789American Airlines

Wed, 12 Aug - Sun, 23 Aug

Cheap direct flights

Enter your travel dates to find the best prices.

2:15 p.m. - 5:01 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 46mdirect

12:25 p.m. - 1:23 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

1h 58mdirect

C$ 330Air Canada

Thu, 10 Sep - Mon, 14 Sep

7:25 a.m. - 10:18 a.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 53mdirect

7:45 p.m. - 8:51 p.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

2h 06mdirect

C$ 330Air Canada

Sun, 30 Aug - Fri, 4 Sep

7:25 a.m. - 10:18 a.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 53mdirect

7:35 p.m. - 8:41 p.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

2h 06mdirect

C$ 330Air Canada

Mon, 31 Aug - Mon, 14 Sep

8:50 a.m. - 11:49 a.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 59mdirect

11:00 a.m. - 12:00 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 00mdirect

C$ 334Lufthansa

Thu, 10 Sep - Sun, 13 Sep

12:59 p.m. - 3:46 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 47mdirect

11:00 a.m. - 12:00 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 00mdirect

C$ 339Lufthansa

Thu, 10 Sep - Mon, 14 Sep

12:59 p.m. - 3:46 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 47mdirect

8:50 a.m. - 9:53 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mdirect

C$ 339Lufthansa

Thu, 10 Sep - Sun, 13 Sep

5:53 p.m. - 8:44 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 51mdirect

7:00 a.m. - 8:00 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 00mdirect

C$ 353United Airlines

Sat, 12 Sep - Sun, 13 Sep

12:59 p.m. - 3:46 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 47mdirect

8:50 a.m. - 9:53 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mdirect

C$ 353United Airlines

Wed, 16 Sep - Sat, 19 Sep

8:32 p.m. - 11:29 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 57mdirect

6:30 a.m. - 7:40 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 10mdirect

C$ 400American Airlines

Mon, 31 Aug - Mon, 14 Sep

8:32 p.m. - 11:29 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 57mdirect

1:15 p.m. - 2:20 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 05mdirect

C$ 431American Airlines

Mon, 31 Aug - Wed, 2 Sep

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

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

10 Sep

ORD8:50 a.m.Chicago O'Hare Intl

1h 59m

YYZ11:49 a.m.Toronto Pearson Intl

13 Sep

YYZ11:00 a.m.Toronto Pearson Intl

2h 00m

ORD12:00 p.m.Chicago O'Hare Intl

C$ 334

Lufthansa

10 Sep

ORD5:00 a.m.Chicago O'Hare Intl

5h 43m

1 stop

YYZ11:43 a.m.Toronto Pearson Intl

13 Sep

YYZ11:00 a.m.Toronto Pearson Intl

2h 00m

ORD12:00 p.m.Chicago O'Hare Intl

C$ 350

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

17 Sep

ORD2:52 p.m.Chicago O'Hare Intl

2h 04m

YYZ5:56 p.m.Toronto Pearson Intl

17 Sep

YYZ8:00 p.m.Toronto Pearson Intl

5h 28m

1 stop

ORD12:28 a.m.Chicago O'Hare Intl

C$ 341

United Airlines

10 Sep

ORD8:50 a.m.Chicago O'Hare Intl

1h 59m

YYZ11:49 a.m.Toronto Pearson Intl

14 Sep

YYZ8:50 a.m.Toronto Pearson Intl

2h 03m

ORD9:53 a.m.Chicago O'Hare Intl

C$ 353

United Airlines

11 Sep

ORD8:50 a.m.Chicago O'Hare Intl

1h 59m

YYZ11:49 a.m.Toronto Pearson Intl

14 Sep

YYZ11:00 a.m.Toronto Pearson Intl

2h 00m

ORD12:00 p.m.Chicago O'Hare Intl

C$ 354

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

ChicagoMontreal

ORD Chicago O'Hare Intl - YUL Montreal Pierre Elliott Trudeau Intl

ORDYUL

Chicago O'Hare Intl

Mon 28/9

11:15 a.m.-2:30 p.m.

Nonstop2h 15m

Montreal Pierre Elliott Trudeau Intl

Mon 28/9

4:30 p.m.-8:41 p.m.

1 stop5h 11m

C$ 321

ChicagoToronto

ORD Chicago O'Hare Intl - YTZ Toronto Island

ORDYTZ

Chicago O'Hare Intl

Sat 26/9

7:25 a.m.-10:07 a.m.

Nonstop1h 42m

Toronto Island

Sat 26/9

12:20 p.m.-8:12 p.m.

2 stops8h 52m

C$ 328

ChicagoToronto

ORD Chicago O'Hare Intl - YTZ Toronto Island

ORDYTZ

Chicago O'Hare Intl

Fri 25/9

7:25 a.m.-10:07 a.m.

Nonstop1h 42m

Toronto Island

Fri 25/9

12:20 p.m.-8:12 p.m.

2 stops8h 52m

C$ 328

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Tue 1/9

6:30 a.m.-2:19 p.m.

1 stop6h 49m

Toronto Pearson Intl

Tue 1/9

5:27 p.m.-6:30 p.m.

Nonstop2h 03m

C$ 333

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Thu 10/9

8:50 a.m.-11:49 a.m.

Nonstop1h 59m

Toronto Pearson Intl

Sun 13/9

11:00 a.m.-12:00 p.m.

Nonstop2h 00m

C$ 334

Quickest round-trip

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Thu 10/9

12:59 p.m.-3:46 p.m.

Nonstop1h 47m

Toronto Pearson Intl

Mon 14/9

11:00 a.m.-12:00 p.m.

Nonstop2h 00m

C$ 339

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Thu 17/9

2:52 p.m.-5:56 p.m.

Nonstop2h 04m

Toronto Pearson Intl

Thu 17/9

8:00 p.m.-12:28 a.m.

1 stop5h 28m

C$ 341

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Thu 17/9

7:09 a.m.-9:54 a.m.

Nonstop1h 45m

Toronto Pearson Intl

Thu 17/9

12:45 p.m.-4:29 p.m.

1 stop4h 44m

C$ 341

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Fri 11/9

4:00 p.m.-11:46 p.m.

1 stop6h 46m

Toronto Pearson Intl

Sun 13/9

6:30 a.m.-7:40 a.m.

Nonstop2h 10m

C$ 367

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Fri 11/9

5:48 p.m.-11:46 p.m.

1 stop4h 58m

Toronto Pearson Intl

Sun 13/9

6:30 a.m.-7:40 a.m.

Nonstop2h 10m

C$ 367

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$ 383. 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$ 424.

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$ 372. The most expensive day to fly to Region of Ontario is Saturday, with ticket prices averaging around C$ 523.

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$ 337. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 495 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$ 466 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$ 379 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?

You could potentially save up to 8% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Region of Ontario flight.

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 37m
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$ 139.

The fastest flight from Chicago O'Hare Intl Airport to Region of Ontario takes 1h 37m

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 August 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 17.36% of the total bookings. Other popular models include Boeing 787-8 Dreamliner with 12.47%, Embraer 175 with 12.29%, and Airbus A330-300 with 7.27%.

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$ 136	Free Cancellation	Rating 7.1 11,897 reviews	Search American Airlines flights
Air Canada	PriceFrom C$ 287	Free Cancellation	Rating 7.1 11,456 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 344	Free Cancellation	Rating 7.4 10,099 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.

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

Wed 9/9

Wed 16/9

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ontario

Popular cities

Other flights from Chicago O'Hare Intl Airport

Other flights to Ontario

Airlines

Complete your trip

Feeling lucky

Popular Cities in Ontario

Flights to Torontofrom C$ 134

Flights to Vancouverfrom C$ 105

Flights to Montrealfrom C$ 252

Flights to Calgaryfrom C$ 116

Flights to Halifaxfrom C$ 187

Flights to Winnipegfrom C$ 134

Flights to Ottawafrom C$ 188

Flights to Kelownafrom C$ 125

Flights to Saskatoonfrom C$ 185

Flights to St. John'sfrom C$ 241

Flights to Reginafrom C$ 217

Flights to Québec Cityfrom C$ 301

Cheap flights from Chicago O'Hare Intl Airport to Ontario from C$ 148

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

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

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

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

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

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

Chicago O'Hare Intl Airport flight routes

According to popular flight searches on momondo this year

Region of Ontario flight routes

According to popular flight searches on momondo this year

Fly your favourite airline to Ontario

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Complete your trip to Ontario

Explore popular destinations other users love

According to popular flight searches on momondo this year