What 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 according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 6 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?

672 flights are operational weekly from Chicago to Region of Ontario as of September 2026. The most popular departure day for this route is Sat, with 17% of flights per week taking off on this day.

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

United Airlines, Porter Airlines, and Air Canada are the most popular carriers operating from Chicago to Ontario

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

As of September 2026, 96 flights take off from Chicago and land in Region of Ontario each day. The most common flight departure time for this route is 8:00PM, with 40% of daily flights taking off at noon.

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?

There are 6 operators available for flights from Chicago to Ontario as of September 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.

$95 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

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Cheap round-trip flights

Enter your travel dates to find the best prices.

1:55 pm - 4:42 pmORD Chicago O'Hare Intl-YTZ Toronto Island

1h 47mnonstop

12:05 pm - 1:20 pmYTZ Toronto Island-ORD Chicago O'Hare Intl

2h 15mnonstop

$213Air Canada

Sat, Oct 31 - Sat, Nov 7

12:20 pm - 3:06 pmORD Chicago O'Hare Intl-YTZ Toronto Island

1h 46mnonstop

10:35 am - 11:40 amYTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mnonstop

$213Porter Airlines

Sat, Nov 14 - Mon, Nov 16

12:20 pm - 3:06 pmORD Chicago O'Hare Intl-YTZ Toronto Island

1h 46mnonstop

10:35 am - 11:40 amYTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mnonstop

$213Porter Airlines

Sun, Oct 25 - Mon, Oct 26

3:40 pm - 9:53 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

5h 13m1 stop Montreal Pierre Elliott Trudeau Intl

8:05 am - 9:00 amYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

1h 55mnonstop

$213Air Canada

Sat, Oct 10 - Mon, Oct 12

1:55 pm - 4:42 pmORD Chicago O'Hare Intl-YTZ Toronto Island

1h 47mnonstop

10:35 am - 11:40 amYTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mnonstop

$213Multiple Airlines

Mon, Nov 2 - Mon, Nov 9

1:55 pm - 4:42 pmORD Chicago O'Hare Intl-YTZ Toronto Island

1h 47mnonstop

10:35 am - 11:40 amYTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mnonstop

$216Multiple Airlines

Sat, Oct 31 - Sat, Nov 7

8:50 am - 2:25 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

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

5:55 pm - 7:05 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 10mnonstop

$229United Airlines

Sat, Nov 7 - Sat, Nov 7

8:50 am - 2:25 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

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

5:55 pm - 7:05 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 10mnonstop

$229United Airlines

Sun, Nov 8 - Sun, Nov 8

11:45 am - 2:34 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 49mnonstop

1:17 pm - 2:37 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 20mnonstop

$243American Airlines

Thu, Nov 12 - Sun, Nov 15

2:50 pm - 5:44 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 54mnonstop

7:09 am - 8:39 amYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 30mnonstop

$243American Airlines

Sat, Oct 24 - Tue, Nov 17

Cheap last minute flights

Enter your travel dates to find the best prices.

7:25 am - 10:07 amORD Chicago O'Hare Intl-YTZ Toronto Island

1h 42mnonstop

7:35 pm - 8:41 pmYTZ Toronto Island-ORD Chicago O'Hare Intl

2h 06mnonstop

$265Air Canada

Tue, Sep 22 - Tue, Sep 22

3:20 pm - 6:00 pmMDW Chicago Midway-YTZ Toronto Island

1h 40mnonstop

1:45 pm - 2:35 pmYTZ Toronto Island-MDW Chicago Midway

1h 50mnonstop

$273Porter Airlines

Wed, Sep 23 - Tue, Sep 29

7:25 am - 10:07 amORD Chicago O'Hare Intl-YTZ Toronto Island

1h 42mnonstop

7:35 pm - 8:41 pmYTZ Toronto Island-ORD Chicago O'Hare Intl

2h 06mnonstop

$275Air Canada

Wed, Sep 23 - Tue, Sep 29

11:42 am - 2:32 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 50mnonstop

1:15 pm - 2:20 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 05mnonstop

$329American Airlines

Thu, Sep 24 - Tue, Sep 29

3:42 pm - 6:35 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 53mnonstop

6:30 am - 7:40 amYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 10mnonstop

$329American Airlines

Fri, Sep 25 - Sun, Oct 4

7:09 am - 9:54 amORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 45mnonstop

4:00 pm - 8:12 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

5h 12m1 stop Montreal Pierre Elliott Trudeau Intl

$338Multiple Airlines

Thu, Sep 24 - Tue, Sep 29

6:00 am - 11:43 amORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

4h 43m1 stop Newark

4:00 pm - 8:12 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

5h 12m1 stop Montreal Pierre Elliott Trudeau Intl

$348Multiple Airlines

Thu, Sep 24 - Tue, Sep 29

9:29 am - 1:34 pmMDW Chicago Midway-YYZ Toronto Pearson Intl

3h 05m1 stop Detroit Metropolitan Wayne County

4:05 pm - 6:33 pmYYZ Toronto Pearson Intl-MDW Chicago Midway

3h 28m1 stop Detroit Metropolitan Wayne County

$355Delta

Thu, Sep 24 - Tue, Sep 29

9:29 am - 5:20 pmMDW Chicago Midway-YYZ Toronto Pearson Intl

6h 51m1 stop Detroit Metropolitan Wayne County

6:00 am - 12:39 pmYYZ Toronto Pearson Intl-MDW Chicago Midway

7h 39m1 stop Detroit Metropolitan Wayne County

$355Delta

Fri, Sep 25 - Sun, Oct 4

3:20 pm - 6:00 pmMDW Chicago Midway-YTZ Toronto Island

1h 40mnonstop

10:10 am - 11:00 amYTZ Toronto Island-MDW Chicago Midway

1h 50mnonstop

$366Porter Airlines

Tue, Sep 22 - Thu, Sep 24

Cheap direct flights

Enter your travel dates to find the best prices.

1:55 pm - 4:42 pmORD Chicago O'Hare Intl-YTZ Toronto Island

1h 47mnonstop

12:05 pm - 1:20 pmYTZ Toronto Island-ORD Chicago O'Hare Intl

2h 15mnonstop

$213Air Canada

Sat, Oct 31 - Sat, Nov 7

6:20 pm - 9:06 pmORD Chicago O'Hare Intl-YTZ Toronto Island

1h 46mnonstop

10:35 am - 11:40 amYTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mnonstop

$213Porter Airlines

Thu, Nov 5 - Fri, Nov 13

12:20 pm - 3:06 pmORD Chicago O'Hare Intl-YTZ Toronto Island

1h 46mnonstop

10:35 am - 11:40 amYTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mnonstop

$213Porter Airlines

Mon, Nov 2 - Wed, Nov 11

4:30 pm - 7:10 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 40mnonstop

8:05 am - 9:08 amYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 03mnonstop

$213Air Canada

Tue, Dec 1 - Wed, Dec 9

1:55 pm - 4:42 pmORD Chicago O'Hare Intl-YTZ Toronto Island

1h 47mnonstop

10:35 am - 11:40 amYTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mnonstop

$213Multiple Airlines

Mon, Nov 2 - Mon, Nov 9

1:55 pm - 4:42 pmORD Chicago O'Hare Intl-YTZ Toronto Island

1h 47mnonstop

10:35 am - 11:40 amYTZ Toronto Island-ORD Chicago O'Hare Intl

2h 05mnonstop

$216Multiple Airlines

Sat, Oct 31 - Sat, Nov 7

6:17 pm - 9:15 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 58mnonstop

5:55 pm - 7:05 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 10mnonstop

$243United Airlines

Wed, Nov 11 - Fri, Nov 13

11:05 am - 2:03 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 58mnonstop

3:35 pm - 4:44 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 09mnonstop

$243United Airlines

Thu, Nov 5 - Sat, Nov 14

11:45 am - 2:34 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 49mnonstop

1:17 pm - 2:37 pmYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 20mnonstop

$243American Airlines

Thu, Nov 12 - Sun, Nov 15

2:50 pm - 5:44 pmORD Chicago O'Hare Intl-YYZ Toronto Pearson Intl

1h 54mnonstop

7:09 am - 8:39 amYYZ Toronto Pearson Intl-ORD Chicago O'Hare Intl

2h 30mnonstop

$243American Airlines

Sat, Oct 24 - Tue, Nov 17

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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

Oct 10

ORD3:40 pmChicago O'Hare Intl

5h 13m

1 stop

YYZ9:53 pmToronto Pearson Intl

Oct 12

YYZ8:05 amToronto Pearson Intl

1h 55m

ORD9:00 amChicago O'Hare Intl

$213

Air Canada

Oct 2

ORD8:40 pmChicago O'Hare Intl

1h 46m

YYZ11:26 pmToronto Pearson Intl

Oct 4

YYZ8:05 amToronto Pearson Intl

1h 55m

ORD9:00 amChicago O'Hare Intl

$214

Air Canada

Oct 19

ORD2:15 pmChicago O'Hare Intl

1h 46m

YYZ5:01 pmToronto Pearson Intl

Oct 20

YYZ8:05 amToronto Pearson Intl

1h 55m

ORD9:00 amChicago O'Hare Intl

$215

United Airlines flights from Chicago to Region of Ontario

Our best United Airlines deals on Chicago to Region of Ontario flight tickets

United Airlines

Oct 16

ORD8:50 amChicago O'Hare Intl

1h 59m

YYZ11:49 amToronto Pearson Intl

Oct 16

YYZ3:00 pmToronto Pearson Intl

8h 28m

1 stop

ORD10:28 pmChicago O'Hare Intl

$234

United Airlines

Oct 23

ORD9:20 pmChicago O'Hare Intl

1h 39m

YYZ11:59 pmToronto Pearson Intl

Oct 26

YYZ6:45 amToronto Pearson Intl

2h 09m

ORD7:54 amChicago O'Hare Intl

$243

United Airlines

Sep 30

ORD6:00 amChicago O'Hare Intl

4h 43m

1 stop

YYZ11:43 amToronto Pearson Intl

Sep 30

YYZ2:30 pmToronto Pearson Intl

5h 11m

1 stop

ORD6:41 pmChicago O'Hare Intl

$244

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

Sat 10/31

1:55 pm-4:42 pm

Nonstop1h 47m

Toronto Island

Sat 11/7

12:05 pm-1:20 pm

Nonstop2h 15m

$213

Quickest round-trip

ChicagoToronto

ORD Chicago O'Hare Intl - YTZ Toronto Island

ORDYTZ

Chicago O'Hare Intl

Sat 11/14

12:20 pm-3:06 pm

Nonstop1h 46m

Toronto Island

Mon 11/16

10:35 am-11:40 am

Nonstop2h 05m

$213

ChicagoToronto

ORD Chicago O'Hare Intl - YTZ Toronto Island

ORDYTZ

Chicago O'Hare Intl

Sun 10/25

12:20 pm-3:06 pm

Nonstop1h 46m

Toronto Island

Mon 10/26

10:35 am-11:40 am

Nonstop2h 05m

$213

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Sat 10/10

3:40 pm-9:53 pm

1 stop5h 13m

Toronto Pearson Intl

Mon 10/12

8:05 am-9:00 am

Nonstop1h 55m

$213

ChicagoToronto

ORD Chicago O'Hare Intl - YTZ Toronto Island

ORDYTZ

Chicago O'Hare Intl

Mon 11/2

1:55 pm-4:42 pm

Nonstop1h 47m

Toronto Island

Mon 11/9

10:35 am-11:40 am

Nonstop2h 05m

$213

ChicagoToronto

ORD Chicago O'Hare Intl - YTZ Toronto Island

ORDYTZ

Chicago O'Hare Intl

Sat 10/31

1:55 pm-4:42 pm

Nonstop1h 47m

Toronto Island

Sat 11/7

10:35 am-11:40 am

Nonstop2h 05m

$216

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Sat 11/7

8:50 am-2:25 pm

1 stop4h 35m

Toronto Pearson Intl

Sat 11/7

5:55 pm-7:05 pm

Nonstop2h 10m

$229

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Sun 11/8

8:50 am-2:25 pm

1 stop4h 35m

Toronto Pearson Intl

Sun 11/8

5:55 pm-7:05 pm

Nonstop2h 10m

$229

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Thu 11/12

11:45 am-2:34 pm

Nonstop1h 49m

Toronto Pearson Intl

Sun 11/15

1:17 pm-2:37 pm

Nonstop2h 20m

$243

ChicagoToronto

ORD Chicago O'Hare Intl - YYZ Toronto Pearson Intl

ORDYYZ

Chicago O'Hare Intl

Sat 10/24

2:50 pm-5:44 pm

Nonstop1h 54m

Toronto Pearson Intl

Tue 11/17

7:09 am-8:39 am

Nonstop2h 30m

$243

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?

The month of February is, on average, the cheapest month to fly to Region of Ontario from Chicago, with most prices found around $288. If you aren’t able to travel during the month of February, then book flights to Region of Ontario from Chicago during June instead. Flights to Region of Ontario in June, while not as cheap as those in February, still average around $304.

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

According to our data, Thursday is the cheapest day to fly to Region of Ontario from Chicago. The lowest ticket price found for a Thursday departure recently was $417. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Chicago to Region of Ontario on a Monday will generally be more expensive and average around $643. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

According to our data, the cheapest time of day to fly to Region of Ontario is in the evening. momondo users have found flights departing from Chicago to Region of Ontario in the evening for as low as $423. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $788.

What is the cheapest Chicago to Ontario flight route?

Fly from Chicago Midway to Toronto Island 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 $337 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 $272 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	$95
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 in the past 72 hours is $95. The best round-trip flight deal from Chicago to Region of Ontario found on momondo in the last 72 hours is $213.

The fastest flight from Chicago to Region of Ontario takes 1h 33m

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?
There are 6 operators available for flights from Chicago to Ontario as of September 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?
Based on momondo bookings for flights between Chicago and Region of Ontario, the leading plane model is De Havilland (Bombardier) DHC-8-400 Dash 8Q, making up 23.31% of the total bookings. Other popular models include Embraer 175 with 12.82%, Embraer 175 (Enhanced Winglets) with 9.79%, and Boeing 787-8 Dreamliner with 5.87%.

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
Delta	PriceFrom $88	Free Cancellation	Rating 7.8 8,591 reviews	Search Delta flights
Qantas Airways	PriceFrom $160	Free Cancellation	Rating 7.5 1,102 reviews	Search Qantas Airways flights
Air Canada	PriceFrom $170	Free Cancellation	Rating 7.1 11,653 reviews	Search Air Canada flights
Porter Airlines	PriceFrom $193	Free Cancellation	Rating 8.0 462 reviews	Search Porter Airlines flights
United Airlines	PriceFrom $222	Free Cancellation	Rating 7.4 10,231 reviews	Search United Airlines flights
American Airlines	PriceFrom $223	Free Cancellation	Rating 7.0 12,086 reviews	Search American Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Ontario. Millions of users trust and use momondo every year so you are in good hands.

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?

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

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Popular cities

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Popular cities in Ontario

Flights to Torontofrom $165

Flights to Vancouverfrom $156

Flights to Montrealfrom $247

Flights to Calgaryfrom $153

Flights to Ottawafrom $217

Flights to Halifaxfrom $275

Flights to Winnipegfrom $271

Flights to Québec Cityfrom $331

Flights to Kelownafrom $205

Flights to St. John'sfrom $380

Flights to Saskatoonfrom $263

Flights to Reginafrom $327

Cheap flights from Chicago to Ontario from $95

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 11/26. 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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Air Canada flights from Chicago to Region of Ontario

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

United Airlines flights from Chicago to Region of Ontario

Our best United Airlines 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?

What 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

Chicago 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

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