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Cheap flights from Chicago O'Hare Intl Airport to Ontario from C$ 87

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 O'Hare Intl Airport to Ontario departing on 12/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to Ontario

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
7:25 a.m. - 10:06 a.m.
ORD
-
YTZ
1h 41mdirect
Air Canada Logo
7:20 p.m. - 8:16 p.m.
YTZ
-
ORD
1h 56mdirect
C$ 257Air Canada
mar., 2 jun. - dom., 7 jun.
Air Canada Logo
3:45 p.m. - 6:28 p.m.
ORD
-
YYZ
1h 43mdirect
Air Canada Logo
8:05 a.m. - 9:05 a.m.
YYZ
-
ORD
2h 00mdirect
C$ 270Air Canada
mar., 2 jun. - lun., 8 jun.
Air Canada Logo
8:00 a.m. - 10:40 a.m.
ORD
-
YYZ
1h 40mdirect
Air Canada Logo
12:05 p.m. - 1:01 p.m.
YYZ
-
ORD
1h 56mdirect
C$ 275Air Canada
sáb., 21 feb. - lun., 23 feb.
Multiple Airlines Logo
12:00 p.m. - 11:20 p.m.
ORD
-
YYZ
10h 20m
1 stop
Multiple Airlines Logo
8:00 p.m. - 6:47 a.m.
YYZ
-
ORD
11h 47m
1 stop
C$ 297Multiple Airlines
jue., 9 abr. - lun., 13 abr.
American Airlines Logo
8:19 a.m. - 11:44 a.m.
ORD
-
YUL
2h 25mdirect
American Airlines Logo
7:45 a.m. - 11:53 p.m.
YUL
-
ORD
17h 08m
1 stop
C$ 300American Airlines
mar., 14 abr. - sáb., 18 abr.
Multiple Airlines Logo
8:30 a.m. - 2:20 p.m.
ORD
-
YYZ
28h 50m
1 stop
Multiple Airlines Logo
8:20 p.m. - 10:46 a.m.
YYZ
-
ORD
15h 26m
1 stop
C$ 310Multiple Airlines
mar., 3 mar. - mié., 4 mar.
American Airlines Logo
6:40 a.m. - 3:20 p.m.
ORD
-
YUL
7h 40m
1 stop
American Airlines Logo
7:45 a.m. - 11:34 p.m.
YUL
-
ORD
16h 49m
1 stop
C$ 312American Airlines
mié., 1 abr. - mar., 14 abr.
United Airlines Logo
7:08 a.m. - 9:53 a.m.
ORD
-
YYZ
1h 45mdirect
United Airlines Logo
7:00 a.m. - 8:00 a.m.
YYZ
-
ORD
2h 00mdirect
C$ 321United Airlines
vie., 22 may. - lun., 25 may.
Delta Logo
7:05 a.m. - 5:40 p.m.
ORD
-
YUL
9h 35m
1 stop
Delta Logo
7:00 a.m. - 1:47 p.m.
YUL
-
ORD
7h 47m
1 stop
C$ 324Delta
vie., 15 may. - lun., 18 may.
United Airlines Logo
2:00 p.m. - 4:41 p.m.
ORD
-
YTZ
1h 41mdirect
United Airlines Logo
7:20 p.m. - 8:16 p.m.
YTZ
-
ORD
1h 56mdirect
C$ 411United Airlines
jue., 11 jun. - sáb., 13 jun.

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

Our best WestJet deals on Chicago O'Hare Intl Airport to Region of Ontario flight tickets
WestJet
7 May
ORD5:30 p.m.Chicago O'Hare Intl
11h 15m
1 stop
YYZ5:45 a.m.Toronto Pearson Intl
11 May
YYZ6:10 a.m.Toronto Pearson Intl
11h 30m
2 stops
ORD4:40 p.m.Chicago O'Hare Intl
C$ 436
WestJet
1 May
ORD5:30 p.m.Chicago O'Hare Intl
11h 15m
1 stop
YYZ5:45 a.m.Toronto Pearson Intl
3 May
YYZ6:10 a.m.Toronto Pearson Intl
11h 30m
2 stops
ORD4:40 p.m.Chicago O'Hare Intl
C$ 440
WestJet
25 May
ORD5:30 p.m.Chicago O'Hare Intl
10h 55m
1 stop
YXU5:25 a.m.London
28 May
YXU6:15 a.m.London
11h 25m
1 stop
ORD4:40 p.m.Chicago O'Hare Intl
C$ 449

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

Our best Delta deals on Chicago O'Hare Intl Airport to Region of Ontario flight tickets
Delta
27 Mar
ORD3:59 p.m.Chicago O'Hare Intl
6h 41m
1 stop
YUL11:40 p.m.Montreal Pierre Elliott Trudeau Intl
4 Apr
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
8h 24m
1 stop
ORD1:24 p.m.Chicago O'Hare Intl
C$ 324
Delta
27 Mar
ORD3:59 p.m.Chicago O'Hare Intl
6h 07m
1 stop
YYZ11:06 p.m.Toronto Pearson Intl
4 Apr
YYZ6:20 a.m.Toronto Pearson Intl
3h 50m
1 stop
ORD9:10 a.m.Chicago O'Hare Intl
C$ 355
Delta
13 Mar
ORD7:10 a.m.Chicago O'Hare Intl
3h 13m
1 stop
YYZ11:23 a.m.Toronto Pearson Intl
16 Mar
YYZ5:10 p.m.Toronto Pearson Intl
5h 16m
1 stop
ORD9:26 p.m.Chicago O'Hare Intl
C$ 406

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Region of Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 2 febrero 2026.
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

ChicagoToronto

ORD - YTZ

ORDYTZ

Chicago O'Hare Intl

mar. 2/6

7:25 a.m.-10:06 a.m.

Nonstop1h 41m

Toronto Island

dom. 7/6

7:20 p.m.-8:16 p.m.

Nonstop1h 56m

C$ 257

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

mar. 2/6

3:45 p.m.-6:28 p.m.

Nonstop1h 43m

Toronto Pearson Intl

lun. 8/6

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

Nonstop2h 00m

C$ 270

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

sáb. 21/2

8:00 a.m.-10:40 a.m.

Nonstop1h 40m

Toronto Pearson Intl

lun. 23/2

12:05 p.m.-1:01 p.m.

Nonstop1h 56m

C$ 275

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

jue. 9/4

12:00 p.m.-11:20 p.m.

1 stop10h 20m

Toronto Pearson Intl

lun. 13/4

8:00 p.m.-6:47 a.m.

1 stop11h 47m

C$ 297

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

mar. 14/4

8:19 a.m.-11:44 a.m.

Nonstop2h 25m

Montreal Pierre Elliott Trudeau Intl

sáb. 18/4

7:45 a.m.-11:53 p.m.

1 stop17h 08m

C$ 300

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

mar. 3/3

8:30 a.m.-2:20 p.m.

1 stop28h 50m

Toronto Pearson Intl

mié. 4/3

8:20 p.m.-10:46 a.m.

1 stop15h 26m

C$ 310

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

mié. 1/4

6:40 a.m.-3:20 p.m.

1 stop7h 40m

Montreal Pierre Elliott Trudeau Intl

mar. 14/4

7:45 a.m.-11:34 p.m.

1 stop16h 49m

C$ 312

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

vie. 22/5

7:08 a.m.-9:53 a.m.

Nonstop1h 45m

Toronto Pearson Intl

lun. 25/5

7:00 a.m.-8:00 a.m.

Nonstop2h 00m

C$ 321

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

vie. 15/5

7:05 a.m.-5:40 p.m.

1 stop9h 35m

Montreal Pierre Elliott Trudeau Intl

lun. 18/5

7:00 a.m.-1:47 p.m.

1 stop7h 47m

C$ 324

ChicagoToronto

ORD - YTZ

ORDYTZ

Chicago O'Hare Intl

jue. 11/6

2:00 p.m.-4:41 p.m.

Nonstop1h 41m

Toronto Island

sáb. 13/6

7:20 p.m.-8:16 p.m.

Nonstop1h 56m

C$ 411

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ontario from

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

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

In general, July 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$ 325. If you are unable to visit Region of Ontario during the month of July, then departing from Chicago O'Hare Intl Airport during the month September is also very affordable. Most momondo users find prices during this month for around C$ 330.

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 Thursday. Travellers who choose to depart for Region of Ontario on a Thursday will often find tickets for as low as C$ 323. The most expensive day to fly to Region of Ontario is Monday, with ticket prices averaging around C$ 502.

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$ 274. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 458 on average. Flights to Region of Ontario from Chicago O'Hare Intl Airport in the morning 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 Pearson Intl for the best Chicago O'Hare Intl - Ontario flight prices

How far in advance should I book a flight to Region of 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$ 395 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$ 207 on momondo.

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

There are 3 cabin classes available to choose from on Chicago O'Hare Intl to 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$ 218

Fastest flight time

1h 39m

Direct flights

Every day

Airports in Region of Ontario

123 airports
The best one-way flight to Region of Ontario from Chicago O'Hare Intl Airport in the past 72 hours is C$ 218. 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$ 116.
The fastest flight from Chicago O'Hare Intl Airport to Region of Ontario takes 1h 39m
Direct flights go from Chicago O'Hare Intl Airport to Region of Ontario every day.
There are 123 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

  • 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?

  • 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?

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
Air CanadaPriceFrom C$ 165Free CancellationRating
7.1
10,676 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 207Free CancellationRating
7.4
9,229 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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Find better results for your trip to Ontario

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