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

Air Canada, United Airlines, and Delta 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 44% 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 September 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$ 134 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 day?

As of September 2026, there are 73 flights per day flying from Chicago O'Hare Intl Airport to Region of Ontario. The most common time of day flights depart is 8:00p.m., with 40% of flights taking off at noon.

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

511 flights are operational weekly from Chicago O'Hare Intl Airport to Region of Ontario as of September 2026. The most popular departure day for this route is Thu, with 16% of flights per week taking off on this day.

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.

6:20 p.m. - 9:06 p.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 46mdirect

10:35 a.m. - 11:40 a.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mdirect

C$ 301Porter Airlines

Thu, 26 Nov - Wed, 2 Dec

12:20 p.m. - 3:06 p.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 46mdirect

10:35 a.m. - 11:40 a.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mdirect

C$ 301Porter Airlines

Sun, 25 Oct - Fri, 30 Oct

12:20 p.m. - 3:06 p.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 46mdirect

10:35 a.m. - 11:40 a.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mdirect

C$ 301Porter Airlines

Sat, 28 Nov - Thu, 3 Dec

3:45 p.m. - 6:31 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 46mdirect

9:00 a.m. - 2:52 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

6h 52m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 304Air Canada

Mon, 19 Oct - Thu, 29 Oct

3:45 p.m. - 6:31 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 46mdirect

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

2h 03mdirect

C$ 305Air Canada

Tue, 20 Oct - Tue, 27 Oct

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

1h 37mdirect

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

2h 03mdirect

C$ 305Air Canada

Fri, 6 Nov - Fri, 13 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$ 323United Airlines

Fri, 27 Nov - Fri, 27 Nov

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

1h 45mdirect

12:45 p.m. - 5:05 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

5h 20m1 stop Washington, D.C. Dulles Intl

C$ 330United Airlines

Thu, 15 Oct - Thu, 15 Oct

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

2h 01mdirect

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

2h 30mdirect

C$ 343American Airlines

Wed, 4 Nov - Wed, 11 Nov

2:50 p.m. - 5:40 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 50mdirect

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

2h 25mdirect

C$ 343American Airlines

Thu, 19 Nov - Mon, 23 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

5:35 p.m. - 8:18 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 43mdirect

6:50 p.m. - 7:48 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

1h 58mdirect

C$ 490Air Canada

Sat, 26 Sep - Wed, 30 Sep

9:55 a.m. - 12:40 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 45mdirect

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

1h 58mdirect

C$ 513Air Canada

Sat, 26 Sep - Wed, 30 Sep

8:30 p.m. - 11:26 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 56mdirect

3:13 p.m. - 4:18 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 05mdirect

C$ 524Qatar Airways

Mon, 28 Sep - Sat, 3 Oct

8:03 a.m. - 10:59 a.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 56mdirect

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

2h 10mdirect

C$ 524Porter Airlines

Sat, 26 Sep - Tue, 29 Sep

8:30 p.m. - 11:26 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 56mdirect

6:30 a.m. - 7:36 a.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 06mdirect

C$ 524Qantas Airways

Wed, 30 Sep - Sat, 3 Oct

4:33 p.m. - 7:37 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

2h 04mdirect

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

2h 00mdirect

C$ 619United Airlines

Wed, 30 Sep - Tue, 6 Oct

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

1h 51mdirect

9:00 p.m. - 10:06 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 06mdirect

C$ 619United Airlines

Sat, 26 Sep - Thu, 22 Oct

3:45 p.m. - 6:31 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$ 619Air Canada

Sat, 26 Sep - Wed, 21 Oct

10:35 a.m. - 4:45 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

5h 10m1 stop Washington, D.C. Reagan-National

2:24 p.m. - 6:34 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

5h 10m1 stop Washington, D.C. Reagan-National

C$ 654American Airlines

Wed, 30 Sep - Wed, 7 Oct

9:45 a.m. - 12:35 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 50mdirect

6:25 p.m. - 7:30 p.m.YYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 05mdirect

C$ 758American Airlines

Tue, 29 Sep - Wed, 7 Oct

Cheap direct flights

Enter your travel dates to find the best prices.

6:20 p.m. - 9:06 p.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 46mdirect

10:35 a.m. - 11:40 a.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mdirect

C$ 301Porter Airlines

Thu, 26 Nov - Wed, 2 Dec

12:20 p.m. - 3:06 p.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 46mdirect

10:35 a.m. - 11:40 a.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mdirect

C$ 301Porter Airlines

Sun, 25 Oct - Fri, 30 Oct

12:20 p.m. - 3:06 p.m.ORD Chicago O'Hare Intl-YTZ Toronto Island

1h 46mdirect

10:35 a.m. - 11:40 a.m.YTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mdirect

C$ 301Porter Airlines

Sat, 28 Nov - Thu, 3 Dec

3:45 p.m. - 6:31 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 46mdirect

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

2h 03mdirect

C$ 305Air Canada

Tue, 20 Oct - Tue, 27 Oct

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

1h 37mdirect

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

2h 03mdirect

C$ 305Air Canada

Fri, 6 Nov - Fri, 13 Nov

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

1h 40mdirect

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

2h 03mdirect

C$ 309Air Canada

Mon, 2 Nov - Mon, 9 Nov

11:05 a.m. - 2:03 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$ 343United Airlines

Sun, 8 Nov - Wed, 18 Nov

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

1h 44mdirect

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

2h 09mdirect

C$ 343United Airlines

Fri, 6 Nov - Thu, 19 Nov

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

2h 01mdirect

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

2h 30mdirect

C$ 343American Airlines

Wed, 4 Nov - Wed, 11 Nov

2:50 p.m. - 5:40 p.m.ORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 50mdirect

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

2h 25mdirect

C$ 343American Airlines

Thu, 19 Nov - Mon, 23 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

19 Oct

ORD3:45 p.m.Chicago O'Hare Intl

1h 46m

YYZ6:31 p.m.Toronto Pearson Intl

29 Oct

YYZ9:00 a.m.Toronto Pearson Intl

6h 52m

1 stop

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

C$ 304

Air Canada

20 Oct

ORD3:45 p.m.Chicago O'Hare Intl

1h 46m

YYZ6:31 p.m.Toronto Pearson Intl

27 Oct

YYZ6:55 p.m.Toronto Pearson Intl

2h 03m

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

C$ 305

Air Canada

8 Oct

ORD2:00 p.m.Chicago O'Hare Intl

1h 48m

YTZ4:48 p.m.Toronto Island

11 Oct

YTZ12:15 p.m.Toronto Island

2h 10m

ORD1:25 p.m.Chicago O'Hare Intl

C$ 306

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

27 Nov

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

4h 35m

1 stop

YYZ2:25 p.m.Toronto Pearson Intl

27 Nov

YYZ5:55 p.m.Toronto Pearson Intl

2h 10m

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

C$ 323

United Airlines

15 Oct

ORD7:09 a.m.Chicago O'Hare Intl

1h 45m

YYZ9:54 a.m.Toronto Pearson Intl

15 Oct

YYZ12:45 p.m.Toronto Pearson Intl

5h 20m

1 stop

ORD5:05 p.m.Chicago O'Hare Intl

C$ 330

United Airlines

6 Nov

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

1h 50m

YYZ4:47 p.m.Toronto Pearson Intl

18 Nov

YYZ10:53 a.m.Toronto Pearson Intl

2h 04m

ORD11:57 a.m.Chicago O'Hare Intl

C$ 343

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 - YTZ Toronto Island

ORDYTZ

Chicago O'Hare Intl

Thu 26/11

6:20 p.m.-9:06 p.m.

Nonstop1h 46m

Toronto Island

Wed 2/12

10:35 a.m.-11:40 a.m.

Nonstop2h 05m

C$ 301

ChicagoToronto

ORD Chicago O'Hare Intl - YTZ Toronto Island

ORDYTZ

Chicago O'Hare Intl

Sun 25/10

12:20 p.m.-3:06 p.m.

Nonstop1h 46m

Toronto Island

Fri 30/10

10:35 a.m.-11:40 a.m.

Nonstop2h 05m

C$ 301

ChicagoToronto

ORD Chicago O'Hare Intl - YTZ Toronto Island

ORDYTZ

Chicago O'Hare Intl

Sat 28/11

12:20 p.m.-3:06 p.m.

Nonstop1h 46m

Toronto Island

Thu 3/12

10:35 a.m.-11:40 a.m.

Nonstop2h 05m

C$ 301

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Mon 19/10

3:45 p.m.-6:31 p.m.

Nonstop1h 46m

Toronto Pearson Intl

Thu 29/10

9:00 a.m.-2:52 p.m.

1 stop6h 52m

C$ 304

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Tue 20/10

3:45 p.m.-6:31 p.m.

Nonstop1h 46m

Toronto Pearson Intl

Tue 27/10

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

Nonstop2h 03m

C$ 305

Quickest round-trip

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Fri 6/11

10:15 a.m.-12:52 p.m.

Nonstop1h 37m

Toronto Pearson Intl

Fri 13/11

2:35 p.m.-3:38 p.m.

Nonstop2h 03m

C$ 305

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Fri 27/11

8:50 a.m.-2:25 p.m.

1 stop4h 35m

Toronto Pearson Intl

Fri 27/11

5:55 p.m.-7:05 p.m.

Nonstop2h 10m

C$ 323

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Thu 15/10

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

Nonstop1h 45m

Toronto Pearson Intl

Thu 15/10

12:45 p.m.-5:05 p.m.

1 stop5h 20m

C$ 330

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Wed 4/11

8:45 p.m.-11:46 p.m.

Nonstop2h 01m

Toronto Pearson Intl

Wed 11/11

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

Nonstop2h 30m

C$ 343

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Thu 19/11

2:50 p.m.-5:40 p.m.

Nonstop1h 50m

Toronto Pearson Intl

Mon 23/11

11:45 a.m.-1:10 p.m.

Nonstop2h 25m

C$ 343

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$ 434.

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$ 488.

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$ 361. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 478 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$ 476 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$ 134
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$ 134. 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$ 301.

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 September 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 20.04% of the total bookings. Other popular models include Embraer 175 with 12.71%, Embraer 175 (Enhanced Winglets) with 9.99%, and Boeing 787-8 Dreamliner with 6.68%.

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 12,086 reviews	Search American Airlines flights
Air Canada	PriceFrom C$ 291	Free Cancellation	Rating 7.1 11,683 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 354	Free Cancellation	Rating 7.4 10,239 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$ 160

Flights to Vancouverfrom C$ 109

Flights to Calgaryfrom C$ 117

Flights to Montrealfrom C$ 216

Flights to Halifaxfrom C$ 168

Flights to Winnipegfrom C$ 165

Flights to Ottawafrom C$ 181

Flights to Kelownafrom C$ 121

Flights to Saskatoonfrom C$ 90

Flights to St. John'sfrom C$ 209

Flights to Reginafrom C$ 202

Flights to Québec Cityfrom C$ 315

Cheap flights from Chicago O'Hare Intl Airport to Ontario from C$ 134

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

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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

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

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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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