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Cheap flights from Chicago to Ontario from C$ 99

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
CHI — YYZ
11 May — 18 May1
1 adult
Sat 11/5
Sat 18/5

How far in advance should I book a flight from Chicago to Region of Ontario?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 40 days in advance, which can save you up to 92% on flights from Chicago to Region of Ontario compared to booking the week you need them. Waiting 40 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at C$ 491. For sooner than that we have options available in the next 3 days from C$ 764.

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

The best pricing can be found in the month of January. Prices to Region of Ontario from Chicago average C$ 444. You can even find prices in January for less than C$ 444, as users have found deals to Region of Ontario from as low as C$ 233. The month of September appears to be one of the more expensive times to travel to Region of Ontario from Chicago. Flying in the targeted month can save you up to 18%.

When is the cheapest time to fly from Chicago to Region of Ontario (CHI - ON)?

When flying from Chicago to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap Delta flights from Chicago to Ontario

Explore cheap flight options specifically provided by Delta for the route between Chicago and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 446,632 searches. Data last updated 6 May 2024.
Peruse some of the lowest-priced Delta flights we've found from Chicago to Ontario. It's recommended that users confirm their flight details before booking.
Tue 16/71:25 p.m.ORD - YYZ
1 stop8h 25mDelta
Fri 19/72:04 p.m.YYZ - ORD
1 stop6h 21mDelta
Deal found 6/5C$ 434
Fri 14/68:30 a.m.ORD - YYZ
1 stop7h 38mDelta
Tue 18/612:30 p.m.YYZ - ORD
1 stop5h 18mDelta
Deal found 6/5C$ 463
Tue 11/69:20 a.m.ORD - YYZ
1 stop8h 13mDelta
Wed 19/612:30 p.m.YYZ - ORD
1 stop5h 18mDelta
Deal found 5/5C$ 464
Wed 15/51:21 p.m.MDW - YYZ
1 stop8h 25mDelta
Tue 21/512:30 p.m.YYZ - MDW
1 stop6h 37mDelta
Deal found 5/5C$ 605

Cheap KLM flights from Chicago to Ontario

Explore cheap flight options specifically provided by KLM for the route between Chicago and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 446,632 searches. Data last updated 6 May 2024.
Some of the lowest-priced KLM flights we've found at this time heading from Chicago to Ontario. Deals are refreshing constantly so come back soon for more options.
Sat 25/51:32 p.m.ORD - YYZ
1 stop8h 14mKLM
Sun 26/56:04 a.m.YYZ - ORD
1 stop3h 55mKLM
Deal found 6/5C$ 453
Thu 30/59:32 a.m.MDW - YYZ
1 stop6h 37mKLM
Sun 2/66:04 a.m.YYZ - MDW
1 stop4h 02mKLM
Deal found 5/5C$ 454

Cheap Chicago to Ontario flights in May & June 2024

Find cheap flight options from Chicago to Ontario specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 446,632 searches. Prices were last updated on 6 May 2024.
These are some of the most attractive deals on flights from Chicago to Ontario in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 28/56:40 p.m.ORD - YYZ
1 stop18h 20mMultiple Airlines
Wed 5/66:30 a.m.YYZ - ORD
1 stop10h 58mMultiple Airlines
Deal found 5/5C$ 276
Tue 4/66:40 p.m.ORD - YYZ
1 stop18h 20mMultiple Airlines
Tue 11/66:30 a.m.YYZ - ORD
1 stop10h 58mMultiple Airlines
Deal found 5/5C$ 285
Wed 12/66:40 p.m.ORD - YYZ
1 stop18h 20mMultiple Airlines
Wed 19/66:30 a.m.YYZ - ORD
1 stop10h 58mMultiple Airlines
Deal found 5/5C$ 286
Wed 29/59:15 p.m.ORD - YYZ
2 stops21h 20mMultiple Airlines
Sat 1/66:30 a.m.YYZ - ORD
1 stop11h 05mMultiple Airlines
Deal found 5/5C$ 293
Thu 30/511:48 a.m.ORD - YYZ
1 stop6h 47mMultiple Airlines
Tue 4/66:30 a.m.YYZ - ORD
1 stop12h 10mMultiple Airlines
Deal found 5/5C$ 294
Wed 29/55:41 p.m.ORD - YYZ
3 stops24h 54mMultiple Airlines
Sat 1/66:30 a.m.YYZ - ORD
1 stop11h 05mMultiple Airlines
Deal found 5/5C$ 304
Wed 15/59:15 p.m.ORD - YYZ
2 stops21h 20mMultiple Airlines
Tue 21/56:30 a.m.YYZ - ORD
1 stop17h 59mMultiple Airlines
Deal found 5/5C$ 311
Tue 4/66:40 p.m.ORD - YYZ
1 stop18h 20mMultiple Airlines
Sat 8/66:30 a.m.YYZ - ORD
2 stops13h 02mMultiple Airlines
Deal found 5/5C$ 315
Thu 30/55:00 a.m.ORD - YYZ
2 stops13h 35mMultiple Airlines
Tue 4/66:30 a.m.YYZ - ORD
1 stop12h 10mMultiple Airlines
Deal found 5/5C$ 319

Chicago to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Chicago and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 446,632 searches. Data last updated 6 May 2024.
These are some of the most attractive deals on flights from Chicago to Ontario in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 28/56:40 p.m.ORD - YYZ
1 stop18h 20mMultiple Airlines
Wed 5/66:30 a.m.YYZ - ORD
1 stop10h 58mMultiple Airlines
Deal found 5/5C$ 276
Tue 4/66:40 p.m.ORD - YYZ
1 stop18h 20mMultiple Airlines
Tue 11/66:30 a.m.YYZ - ORD
1 stop10h 58mMultiple Airlines
Deal found 5/5C$ 285
Wed 12/66:40 p.m.ORD - YYZ
1 stop18h 20mMultiple Airlines
Wed 19/66:30 a.m.YYZ - ORD
1 stop10h 58mMultiple Airlines
Deal found 5/5C$ 286
Wed 29/59:15 p.m.ORD - YYZ
2 stops21h 20mMultiple Airlines
Sat 1/66:30 a.m.YYZ - ORD
1 stop11h 05mMultiple Airlines
Deal found 5/5C$ 293
Thu 30/511:48 a.m.ORD - YYZ
1 stop6h 47mMultiple Airlines
Tue 4/66:30 a.m.YYZ - ORD
1 stop12h 10mMultiple Airlines
Deal found 5/5C$ 294
Wed 29/55:41 p.m.ORD - YYZ
3 stops24h 54mMultiple Airlines
Sat 1/66:30 a.m.YYZ - ORD
1 stop11h 05mMultiple Airlines
Deal found 5/5C$ 304
Wed 15/59:15 p.m.ORD - YYZ
2 stops21h 20mMultiple Airlines
Tue 21/56:30 a.m.YYZ - ORD
1 stop17h 59mMultiple Airlines
Deal found 5/5C$ 311
Tue 4/66:40 p.m.ORD - YYZ
1 stop18h 20mMultiple Airlines
Sat 8/66:30 a.m.YYZ - ORD
2 stops13h 02mMultiple Airlines
Deal found 5/5C$ 315
Thu 30/55:00 a.m.ORD - YYZ
2 stops13h 35mMultiple Airlines
Tue 4/66:30 a.m.YYZ - ORD
1 stop12h 10mMultiple Airlines
Deal found 5/5C$ 319

Direct flights to Ontario from Chicago

Discover non-stop flight options from Chicago to Ontario. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 446,632 searches. Data last updated 6 May 2024.
Take a look at some of the direct flights travelling from Chicago to Ontario in the near future. Select from other flights from Chicago to Ontario by using the search form above.
Mon 27/55:15 p.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Tue 28/58:50 p.m.YTZ - MDW
Nonstop1h 47mPorter Airlines
Deal found 5/5C$ 353
Fri 7/68:00 a.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Sun 16/610:30 a.m.YTZ - MDW
Nonstop1h 47mPorter Airlines
Deal found 6/5C$ 360
Fri 14/68:00 a.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Sun 16/68:50 p.m.YTZ - MDW
Nonstop1h 47mPorter Airlines
Deal found 5/5C$ 364
Fri 7/68:00 a.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Sun 9/68:50 p.m.YTZ - MDW
Nonstop1h 47mPorter Airlines
Deal found 4/5C$ 369
Wed 29/55:15 p.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Sat 1/610:45 a.m.YTZ - MDW
Nonstop1h 47mPorter Airlines
Deal found 5/5C$ 386
Fri 7/611:25 a.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Sun 16/610:30 a.m.YTZ - MDW
Nonstop1h 47mPorter Airlines
Deal found 5/5C$ 391
Tue 11/611:05 a.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Fri 14/68:50 p.m.YTZ - MDW
Nonstop1h 47mPorter Airlines
Deal found 5/5C$ 393
Tue 11/611:05 a.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Sat 15/610:45 a.m.YTZ - MDW
Nonstop1h 47mPorter Airlines
Deal found 5/5C$ 397
Sat 15/69:00 a.m.ORD - YYZ
Nonstop1h 52mMultiple Airlines
Wed 19/62:00 p.m.YYZ - ORD
Nonstop1h 54mMultiple Airlines
Deal found 5/5C$ 400

Chicago to Ontario flights leaving soon

Find last-minute flight options from Chicago to Ontario for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 446,632 searches. Data last updated 6 May 2024.
Check out these flights departing soon from Chicago to Ontario. Users should examine the flight details to ensure there are no surprises.
Wed 15/55:41 p.m.ORD - YYZ
3 stops24h 54mMultiple Airlines
Tue 21/56:30 a.m.YYZ - ORD
1 stop17h 59mMultiple Airlines
Deal found 5/5C$ 304
Wed 15/59:15 p.m.ORD - YYZ
2 stops21h 20mMultiple Airlines
Tue 21/56:30 a.m.YYZ - ORD
1 stop17h 59mMultiple Airlines
Deal found 5/5C$ 311
Wed 15/55:41 p.m.ORD - YYZ
3 stops24h 54mMultiple Airlines
Tue 21/52:40 p.m.YYZ - ORD
3 stops24h 26mMultiple Airlines
Deal found 5/5C$ 354
Wed 15/55:41 p.m.ORD - YYZ
3 stops24h 54mMultiple Airlines
Tue 21/52:40 p.m.YYZ - ORD
3 stops28h 00mMultiple Airlines
Deal found 5/5C$ 357
Wed 15/59:15 p.m.ORD - YYZ
2 stops21h 20mMultiple Airlines
Tue 21/52:40 p.m.YYZ - ORD
3 stops28h 00mMultiple Airlines
Deal found 5/5C$ 360
Wed 15/58:09 p.m.ORD - YYZ
2 stops22h 26mMultiple Airlines
Tue 21/52:40 p.m.YYZ - ORD
3 stops28h 00mMultiple Airlines
Deal found 5/5C$ 363
Wed 15/55:41 p.m.ORD - YYZ
3 stops24h 54mMultiple Airlines
Tue 21/56:30 a.m.YYZ - ORD
1 stop17h 59mMultiple Airlines
Deal found 5/5C$ 371
Wed 15/58:09 p.m.ORD - YYZ
2 stops22h 26mMultiple Airlines
Tue 21/56:30 a.m.YYZ - ORD
1 stop17h 59mMultiple Airlines
Deal found 5/5C$ 376
Wed 15/55:00 a.m.ORD - YYZ
1 stop15h 15mMultiple Airlines
Tue 21/56:30 a.m.YYZ - ORD
1 stop17h 59mMultiple Airlines
Deal found 5/5C$ 389

One-way flights to Ontario from Chicago

Search for one-way flight options from Chicago to Ontario. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 446,632 searches. Data last updated 6 May 2024.
Users travelling one-way from Chicago to Ontario can select one of these great deals. Users in need of a round-trip flight from Chicago to Ontario instead should update the search form at the top of page.
Wed 12/66:40 p.m.ORD - YYZ
1 stop18h 20mMultiple Airlines
Deal found 6/5C$ 99
Tue 4/66:40 p.m.ORD - YYZ
1 stop18h 20mMultiple Airlines
Deal found 5/5C$ 101
Thu 30/511:48 a.m.ORD - YYZ
1 stop6h 47mMultiple Airlines
Deal found 5/5C$ 104
Wed 26/66:40 p.m.ORD - YYZ
1 stop18h 15mMultiple Airlines
Deal found 6/5C$ 109
Tue 11/66:40 p.m.ORD - YYZ
1 stop18h 20mMultiple Airlines
Deal found 6/5C$ 115
Tue 11/66:40 p.m.ORD - YYZ
1 stop18h 20mMultiple Airlines
Deal found 5/5C$ 116
Wed 26/66:40 p.m.ORD - YYZ
1 stop18h 15mMultiple Airlines
Deal found 5/5C$ 119
Tue 4/610:58 a.m.ORD - YYZ
2 stops24h 17mMultiple Airlines
Deal found 5/5C$ 120
Tue 28/56:40 p.m.ORD - YYZ
1 stop18h 20mMultiple Airlines
Deal found 5/5C$ 122

Find flights from Chicago to Ontario within your budget

Customize your flight search to find flights from Chicago to 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, Cheapflights users made 446,632 searches. Data last updated 6 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

C$ 276 - C$ 502

Route

Depart

Return

Price

Chicago O'Hare IntlToronto Pearson Intl

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Tue 28/5

1 stop18h 20m

Toronto Pearson Intl

Wed 5/6

1 stop10h 58m

C$ 276

Chicago O'Hare IntlToronto Pearson Intl

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Tue 4/6

1 stop18h 20m

Toronto Pearson Intl

Tue 11/6

1 stop10h 58m

C$ 285

Chicago MidwayToronto Island

MDW - YTZ

MDWYTZ

Chicago Midway

Mon 27/5

Nonstop1h 42m

Toronto Island

Tue 28/5

Nonstop1h 47m

C$ 353

Chicago O'Hare IntlToronto Pearson Intl

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Wed 5/6

Nonstop1h 52m

Toronto Pearson Intl

Sat 8/6

Nonstop2h 02m

C$ 400

Chicago O'Hare IntlToronto Island

ORD - YTZ

ORDYTZ

Chicago O'Hare Intl

Wed 29/5

1 stop5h 04m

Toronto Island

Sat 1/6

1 stop5h 56m

C$ 406

Chicago O'Hare IntlToronto Pearson Intl

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Tue 16/7

1 stop8h 25m

Toronto Pearson Intl

Fri 19/7

1 stop6h 21m

C$ 434

Chicago O'Hare IntlToronto Pearson Intl

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 13/6

1 stop5h 48m

Toronto Pearson Intl

Sun 16/6

Nonstop1h 55m

C$ 441

Chicago O'Hare IntlToronto Pearson Intl

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Sat 25/5

1 stop8h 14m

Toronto Pearson Intl

Sun 26/5

1 stop3h 55m

C$ 453

Chicago O'Hare IntlToronto Pearson Intl

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Wed 26/6

1 stop4h 33m

Toronto Pearson Intl

Sat 29/6

1 stop10h 03m

C$ 502

Flights are sorted by cheapest first

Deals found on 5/5

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 6 May 2024.
Read through reviews of airlines operating flights from Chicago to Ontario, such as Delta, KLM and United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,818 reviews
Check prices

Food

7.4

Overall

8.1

Entertainment

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.1
Very good
10,818 reviews
Delta
8.1
Very good
10,818 reviews
Check prices

Food

7.4

Overall

8.1

Entertainment

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,602 reviews
Delta
8.1
Very good
10,818 reviews
Check prices

Food

7.4

Overall

8.1

Entertainment

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

WestJet
7.6
Good
2,957 reviews
Delta
8.1
Very good
10,818 reviews
Check prices

Food

7.4

Overall

8.1

Entertainment

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Porter Airlines
7.4
Good
430 reviews
Delta
8.1
Very good
10,818 reviews
Check prices

Food

7.4

Overall

8.1

Entertainment

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

United Airlines
7.4
Good
11,090 reviews
Delta
8.1
Very good
10,818 reviews
Check prices

Food

7.4

Overall

8.1

Entertainment

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Chicago to Region of Ontario for under C$ 300 on Cheapflights?

    Yes, there are multiple flights from Chicago to Region of Ontario for under C$ 300. The cheapest flight booked recently is on Multiple Airlines for just C$ 276, but on average you can expect to pay C$ 308.

  • Are there direct flights from Chicago to Region of Ontario for under C$ 400 on Cheapflights?

    Cheapflights has 20 direct flights from Chicago to Region of Ontario under C$ 400. A good price for a direct flight from Chicago to Region of Ontario is less than C$ 395.

  • Are there last-minute flights available from Chicago to Region of Ontario for under C$ 400?

    There are currently 20+ open flights from Chicago to Region of Ontario within the next 7 days for less than C$ 400.

  • What days are direct flights available from Chicago to Region of Ontario?

    Days when direct flights are available for this flight are: Tuesday, Wednesday, Saturday.

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

    Per day, 11 flights depart from Chicago to Region of Ontario on average.
    Morning (6am - Midday) - 55% of flight departures
    Afternoon (Noon - 6pm) - 45% of flight departures

  • What are the most popular routes from Chicago to Region of Ontario?

    While some choose either Chicago Midway - Toronto Island or Chicago Midway - Toronto Pearson Intl, Chicago O'Hare Intl - Toronto Pearson Intl is the most popular route from Chicago to Region of Ontario.

  • What are the most reliable airlines from Chicago to Region of Ontario?

    Before booking your flight to Region of Ontario from Chicago, check out the most reliable airlines to get you to your destination on time: Republic Airways (92%), SkyWest Airlines (92%), United Airlines( 89%).

  • What are the cheapest flights from Chicago to Region of Ontario?

    The cheapest flight price from Chicago to Region of Ontario is C$ 184. On average you can expect to pay C$ 391. The most popular route, (Chicago O'Hare Intl - Toronto Pearson Intl), can usually be booked for C$ 274.

  • What does ORD to YYZ mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Chicago O'Hare Intl Airport to Toronto Pearson Intl Airport flight would often be abbreviated as a ORD to YYZ flight. Ottawa Airport (YOW), Toronto Island Airport (YTZ), Hamilton Airport (YHM), London Airport (YXU), Toronto Kitchener-Waterloo Airport (YKF) are some additional IATA codes for airports related to your trip.

  • Can I find deals for flights from Chicago to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your Chicago to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Chicago to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Chicago to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Chicago to Ontario that include hotel bookings?

    Yes. In addition to deals on Chicago to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Ontario.

  • Can I find deals for business class flights from Chicago to Ontario?

    Yes. Cheapflights offers flight deals from Chicago to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Chicago to Ontario that allow pets onboard?

    Many airlines flying from Chicago to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Chicago to Ontario?

    Yes, you can often find last-minute deals on Chicago to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Chicago to Region of Ontario flight deals updated?

    The Chicago to Region of Ontario flight deals you see on this page were last updated on 5/5.

See more FAQs

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Alternative routes for Chicago to Ontario
See prices for flight routes from nearby airports that may be better suited for you.

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Top 3 airlines flying from Chicago to Ontario

Discover the top 3 airlines that operate flights from Chicago to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 446,632 searches. Data last updated 6 May 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 200AverageC$ 451FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 272AverageC$ 513FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 298AverageC$ 544FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
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Search flights from Chicago to Ontario by cabin class

Find flights from Chicago to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
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Hourly flight availability from Chicago to Ontario

Find hourly flight availability from Chicago to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 6 May 2024.
1%of flight departuresEarly morningMidnight to 6 am
42%of flight departuresMorning6 am to noon
44%of flight departuresAfternoonNoon to 6 pm
13%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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How does Cheapflights help users find flights from Chicago to Ontario?

Deals for Chicago to Ontario flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Chicago to Ontario?

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Can Cheapflights find flights from Chicago to Ontario with no change fees?

Yes, we can. To see specific flights from Chicago to Ontario with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Chicago to Ontario become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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