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Cheap flights from Illinois to Ontario from $117

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 6/17. 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.
ORD — YYZ
May 10 — May 171
From?
To?
Fri 5/10
Fri 5/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

How far in advance should I book a flight from Illinois 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 Illinois 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 $359. For sooner than that we have options available in the next 3 days from $558.

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

January can be a great time to fly to Region of Ontario from Illinois with a flight ticket averaging about $324. Cheapflights users have found deals in the month of January for as cheap as $170. The most expensive prices can be found in the month of September.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Region of Ontario as you normally would.

Cheap United Airlines flights from Illinois to Ontario

Explore cheap flight options specifically provided by United Airlines for the route between Illinois 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 2,795,183 searches. Data last updated May 5, 2024.
Consider these cheap United Airlines flights we've found departing from Illinois to Ontario. Deals update often to give you more flight options matching your criteria
Tue 5/282:15 pmORD - YYZ
Nonstop1h 45mUnited Airlines
Tue 5/287:43 pmYYZ - ORD
1 stop4h 37mUnited Airlines
Deal found 5/4$306
Sat 5/257:45 pmORD - YYZ
1 stop14h 03mUnited Airlines
Sun 5/261:00 pmYYZ - ORD
Nonstop2h 02mUnited Airlines
Deal found 5/4$311
Wed 6/57:10 amORD - YYZ
Nonstop1h 48mUnited Airlines
Sat 6/81:00 pmYYZ - ORD
Nonstop2h 02mUnited Airlines
Deal found 5/4$314
Sun 5/267:10 amORD - YYZ
Nonstop1h 48mUnited Airlines
Fri 6/77:43 pmYYZ - ORD
1 stop4h 37mUnited Airlines
Deal found 5/4$329
Tue 5/142:15 pmORD - YYZ
Nonstop1h 45mUnited Airlines
Sun 5/197:59 amYYZ - ORD
Nonstop1h 59mUnited Airlines
Deal found 5/4$417
Tue 5/147:10 amORD - YYZ
Nonstop1h 48mUnited Airlines
Tue 5/144:00 pmYYZ - ORD
Nonstop2h 04mUnited Airlines
Deal found 5/4$434
Tue 5/148:48 amORD - YYZ
1 stop4h 27mUnited Airlines
Wed 5/154:00 pmYYZ - ORD
Nonstop2h 04mUnited Airlines
Deal found 5/4$444
Mon 5/1311:00 amORD - YYZ
Nonstop1h 45mUnited Airlines
Tue 5/211:00 pmYYZ - ORD
Nonstop2h 04mUnited Airlines
Deal found 5/4$448
Mon 5/139:20 pmORD - YYZ
1 stop11h 44mUnited Airlines
Tue 5/141:00 pmYYZ - ORD
Nonstop2h 04mUnited Airlines
Deal found 5/4$452

Cheap Air Canada flights from Illinois to Ontario

Explore cheap flight options specifically provided by Air Canada for the route between Illinois 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 2,795,183 searches. Data last updated May 5, 2024.
Some of the lowest-priced Air Canada flights we've found at this time heading from Illinois to Ontario. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Tue 7/239:28 pmORD - YYZ
1 stop11h 36mAir Canada
Thu 7/257:00 amYYZ - ORD
Nonstop1h 57mAir Canada
Deal found 5/3$316
Tue 6/258:45 amORD - YTZ
1 stop5h 04mAir Canada
Wed 7/310:20 amYTZ - ORD
1 stop5h 20mAir Canada
Deal found 5/4$319
Fri 5/316:00 amORD - YYZ
Nonstop1h 45mAir Canada
Wed 6/57:50 pmYYZ - ORD
Nonstop1h 54mAir Canada
Deal found 5/4$320
Thu 8/227:25 amORD - YYZ
1 stop4h 40mAir Canada
Sun 8/256:30 amYYZ - ORD
1 stop4h 31mAir Canada
Deal found 5/4$324
Fri 6/79:15 pmORD - YYZ
Nonstop1h 43mAir Canada
Mon 6/107:55 amYYZ - ORD
Nonstop1h 56mAir Canada
Deal found 5/4$335
Wed 8/287:26 amORD - YYZ
Nonstop1h 32mAir Canada
Wed 9/412:00 pmYYZ - ORD
Nonstop1h 53mAir Canada
Deal found 5/4$340
Mon 5/134:00 pmORD - YYZ
Nonstop1h 45mAir Canada
Tue 7/25:30 pmYYZ - ORD
Nonstop1h 57mAir Canada
Deal found 5/4$405
Mon 5/136:00 amORD - YYZ
Nonstop1h 45mAir Canada
Tue 5/216:30 amYYZ - ORD
1 stop4h 31mAir Canada
Deal found 5/4$453
Mon 5/131:56 pmORD - YTZ
1 stop4h 53mAir Canada
Tue 5/213:20 pmYTZ - ORD
1 stop5h 56mAir Canada
Deal found 5/4$465

Cheap Illinois to Ontario flights in May & June 2024

Find cheap flight options from Illinois 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 2,795,183 searches. Prices were last updated on May 5, 2024.
Listed are some of the best fares we've found on flights departing from Illinois to Ontario in 2024. Check back in a little while for more flight options.
Tue 6/46:40 pmORD - YYZ
1 stop18h 20mMultiple Airlines
Wed 6/126:30 amYYZ - ORD
1 stop17h 23mMultiple Airlines
Deal found 5/4$185
Tue 6/46:40 pmORD - YYZ
1 stop18h 20mMultiple Airlines
Wed 6/126:30 amYYZ - ORD
1 stop12h 10mMultiple Airlines
Deal found 5/4$186
Wed 6/56:40 pmORD - YYZ
1 stop18h 20mMultiple Airlines
Sat 6/86:30 amYYZ - ORD
1 stop17h 23mMultiple Airlines
Deal found 5/4$200
Tue 5/286:40 pmORD - YYZ
1 stop18h 20mMultiple Airlines
Tue 6/46:30 amYYZ - ORD
1 stop11h 05mMultiple Airlines
Deal found 5/4$202
Tue 5/286:40 pmORD - YYZ
1 stop18h 20mMultiple Airlines
Tue 6/46:30 amYYZ - ORD
2 stops17h 40mMultiple Airlines
Deal found 5/4$205
Mon 6/176:40 pmORD - YYZ
1 stop18h 20mMultiple Airlines
Wed 6/196:30 amYYZ - ORD
1 stop12h 10mMultiple Airlines
Deal found 5/4$207
Wed 6/56:40 pmORD - YYZ
1 stop18h 20mMultiple Airlines
Sat 6/86:30 amYYZ - ORD
2 stops13h 02mMultiple Airlines
Deal found 5/4$208
Tue 6/47:00 amORD - YYZ
2 stops22h 35mMultiple Airlines
Wed 6/126:30 amYYZ - ORD
1 stop10h 58mMultiple Airlines
Deal found 5/4$217
Tue 6/49:25 pmORD - YYZ
2 stops15h 35mMultiple Airlines
Wed 6/126:30 amYYZ - ORD
1 stop12h 10mMultiple Airlines
Deal found 5/4$219

Illinois to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Illinois and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,795,183 searches. Data last updated May 5, 2024.
Listed are some of the best fares we've found on flights departing from Illinois to Ontario in 2024. Check back in a little while for more flight options.
Tue 6/46:40 pmORD - YYZ
1 stop18h 20mMultiple Airlines
Wed 6/126:30 amYYZ - ORD
1 stop17h 23mMultiple Airlines
Deal found 5/4$185
Tue 6/46:40 pmORD - YYZ
1 stop18h 20mMultiple Airlines
Wed 6/126:30 amYYZ - ORD
1 stop12h 10mMultiple Airlines
Deal found 5/4$186
Wed 6/56:40 pmORD - YYZ
1 stop18h 20mMultiple Airlines
Sat 6/86:30 amYYZ - ORD
1 stop17h 23mMultiple Airlines
Deal found 5/4$200
Tue 5/286:40 pmORD - YYZ
1 stop18h 20mMultiple Airlines
Tue 6/46:30 amYYZ - ORD
1 stop11h 05mMultiple Airlines
Deal found 5/4$202
Tue 5/286:40 pmORD - YYZ
1 stop18h 20mMultiple Airlines
Tue 6/46:30 amYYZ - ORD
2 stops17h 40mMultiple Airlines
Deal found 5/4$205
Mon 6/176:40 pmORD - YYZ
1 stop18h 20mMultiple Airlines
Wed 6/196:30 amYYZ - ORD
1 stop12h 10mMultiple Airlines
Deal found 5/4$207
Wed 6/56:40 pmORD - YYZ
1 stop18h 20mMultiple Airlines
Sat 6/86:30 amYYZ - ORD
2 stops13h 02mMultiple Airlines
Deal found 5/4$208
Tue 6/47:00 amORD - YYZ
2 stops22h 35mMultiple Airlines
Wed 6/126:30 amYYZ - ORD
1 stop10h 58mMultiple Airlines
Deal found 5/4$217
Tue 6/49:25 pmORD - YYZ
2 stops15h 35mMultiple Airlines
Wed 6/126:30 amYYZ - ORD
1 stop12h 10mMultiple Airlines
Deal found 5/4$219

Non-stop flights to Ontario from Illinois

Discover non-stop flight options from Illinois 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 2,795,183 searches. Data last updated May 5, 2024.
For a quicker trip, book one of these direct flights from Illinois to Ontario. Search for alternative flights from Illinois to Ontario by utilizing the search form above.
Sat 5/2512:30 pmMDW - YTZ
Nonstop1h 42mPorter Airlines
Sat 6/110:45 amYTZ - MDW
Nonstop1h 47mPorter Airlines
Deal found 5/4$258
Fri 6/78:00 amMDW - YTZ
Nonstop1h 42mPorter Airlines
Sun 6/98:50 pmYTZ - MDW
Nonstop1h 47mPorter Airlines
Deal found 5/4$270
Thu 6/68:00 amMDW - YTZ
Nonstop1h 42mPorter Airlines
Wed 6/129:20 amYTZ - MDW
Nonstop1h 47mPorter Airlines
Deal found 5/4$271
Tue 5/288:00 amMDW - YTZ
Nonstop1h 42mPorter Airlines
Thu 5/303:30 pmYTZ - MDW
Nonstop1h 47mPorter Airlines
Deal found 5/4$281
Sat 5/258:00 amMDW - YTZ
Nonstop1h 42mPorter Airlines
Fri 5/318:50 pmYTZ - MDW
Nonstop1h 47mPorter Airlines
Deal found 5/4$282
Fri 6/711:25 amMDW - YTZ
Nonstop1h 42mPorter Airlines
Sun 6/1610:30 amYTZ - MDW
Nonstop1h 47mPorter Airlines
Deal found 5/4$284
Fri 5/3111:05 amMDW - YTZ
Nonstop1h 42mPorter Airlines
Mon 6/39:20 amYTZ - MDW
Nonstop1h 47mPorter Airlines
Deal found 5/4$287
Wed 6/55:15 pmMDW - YTZ
Nonstop1h 42mPorter Airlines
Sun 6/98:50 pmYTZ - MDW
Nonstop1h 47mPorter Airlines
Deal found 5/3$294
Fri 5/315:15 pmMDW - YTZ
Nonstop1h 42mPorter Airlines
Mon 6/38:50 pmYTZ - MDW
Nonstop1h 47mPorter Airlines
Deal found 5/4$295

Illinois to Ontario flights leaving soon

Find last-minute flight options from Illinois 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 2,795,183 searches. Data last updated May 5, 2024.
Users seeking a last-minute flight from Illinois to Ontario should consider booking one of these fares. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Sat 5/114:05 pmORD - YYZ
1 stop13h 30mMultiple Airlines
Tue 5/146:30 amYYZ - ORD
2 stops14h 15mMultiple Airlines
Deal found 5/4$249
Sat 5/114:05 pmORD - YYZ
1 stop13h 30mMultiple Airlines
Tue 5/146:30 amYYZ - ORD
3 stops37h 49mMultiple Airlines
Deal found 5/4$271
Mon 5/136:53 pmORD - YYZ
3 stops23h 42mMultiple Airlines
Tue 5/216:30 amYYZ - ORD
1 stop11h 05mMultiple Airlines
Deal found 5/4$274
Sat 5/114:05 pmORD - YYZ
1 stop13h 30mMultiple Airlines
Tue 5/148:20 pmYYZ - ORD
1 stop11h 10mMultiple Airlines
Deal found 5/4$285
Mon 5/138:00 pmORD - YYZ
1 stop14h 45mMultiple Airlines
Tue 5/216:30 amYYZ - ORD
1 stop12h 10mMultiple Airlines
Deal found 5/4$300
Mon 5/136:53 pmORD - YYZ
3 stops23h 42mMultiple Airlines
Tue 5/212:40 pmYYZ - ORD
3 stops26h 55mMultiple Airlines
Deal found 5/4$309
Sat 5/117:25 pmORD - YYZ
2 stops23h 10mMultiple Airlines
Mon 5/138:00 pmYYZ - ORD
1 stop11h 40mMultiple Airlines
Deal found 5/3$318
Mon 5/138:00 pmORD - YYZ
1 stop14h 45mMultiple Airlines
Tue 5/142:40 pmYYZ - ORD
2 stops20h 15mMultiple Airlines
Deal found 5/4$325
Wed 5/157:51 pmSTL - YYZ
1 stop9h 51mMultiple Airlines
Sun 6/26:30 amYYZ - STL
1 stop11h 59mMultiple Airlines
Deal found 5/4$327

One-way flights to Ontario from Illinois

Search for one-way flight options from Illinois 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 2,795,183 searches. Data last updated May 5, 2024.
Take a look at some of the one-way flights we've detected from Illinois to Ontario. For those needing a return trip from Illinois, there is a search form available above.
Mon 6/176:40 pmORD - YYZ
1 stop18h 20mMultiple Airlines
Deal found 5/4$117
Sat 6/812:30 pmMDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 5/4$118
Mon 6/36:40 pmORD - YYZ
1 stop18h 20mMultiple Airlines
Deal found 5/4$118
Sun 5/1911:48 amORD - YYZ
1 stop6h 47mMultiple Airlines
Deal found 5/4$119
Tue 6/188:00 amMDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 5/4$120
Fri 5/318:00 amMDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 5/5$121
Sat 6/85:21 amORD - YYZ
2 stops13h 14mMultiple Airlines
Deal found 5/4$121
Tue 5/147:51 pmSTL - YYZ
1 stop9h 51mMultiple Airlines
Deal found 5/4$122
Mon 6/36:53 pmORD - YYZ
3 stops34h 42mMultiple Airlines
Deal found 5/4$122

Find flights from Illinois to Ontario within your budget

Customize your flight search to find flights from Illinois 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 2,795,183 searches. Data last updated May 5, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$185 - $367

Route

Depart

Return

Price

Chicago O'Hare IntlToronto Pearson Intl

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Tue 6/4

1 stop18h 20m

Toronto Pearson Intl

Wed 6/12

1 stop17h 23m

$185

Chicago O'Hare IntlToronto Pearson Intl

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Tue 6/4

1 stop18h 20m

Toronto Pearson Intl

Wed 6/12

1 stop12h 10m

$186

Chicago MidwayToronto Island

MDW - YTZ

MDWYTZ

Chicago Midway

Sat 5/25

Nonstop1h 42m

Toronto Island

Sat 6/1

Nonstop1h 47m

$258

Chicago O'Hare IntlToronto Pearson Intl

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Tue 5/28

Nonstop1h 45m

Toronto Pearson Intl

Tue 5/28

1 stop4h 37m

$306

Chicago O'Hare IntlToronto Pearson Intl

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Tue 7/23

1 stop11h 36m

Toronto Pearson Intl

Thu 7/25

Nonstop1h 57m

$316

Chicago O'Hare IntlToronto Pearson Intl

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Wed 5/29

1 stop7h 40m

Toronto Pearson Intl

Sat 6/1

Nonstop1h 55m

$322

Chicago O'Hare IntlToronto Pearson Intl

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Sat 5/25

1 stop8h 14m

Toronto Pearson Intl

Sun 5/26

Nonstop1h 56m

$330

Chicago O'Hare IntlToronto Pearson Intl

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Sat 5/25

1 stop8h 14m

Toronto Pearson Intl

Tue 5/28

1 stop9h 30m

$334

Chicago O'Hare IntlToronto Pearson Intl

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Wed 6/26

1 stop4h 33m

Toronto Pearson Intl

Sat 6/29

1 stop10h 03m

$367

Flights are sorted by cheapest first

Deals found on 5/4

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 May 5, 2024.
Read through reviews of airlines operating flights from Illinois to Ontario, such as United Airlines, Air Canada and American Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,826 reviews
Check prices

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Boarding

8.2

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
10,826 reviews
Delta
8.1
Very good
10,826 reviews
Check prices

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Boarding

8.2

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
1,603 reviews
Delta
8.1
Very good
10,826 reviews
Check prices

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Boarding

8.2

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.

Aeromexico
7.6
Good
2,587 reviews
Delta
8.1
Very good
10,826 reviews
Check prices

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Boarding

8.2

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
2,966 reviews
Delta
8.1
Very good
10,826 reviews
Check prices

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Boarding

8.2

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
10,826 reviews
Check prices

Overall

8.1

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Boarding

8.2

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 Illinois 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 Illinois to Region of Ontario for under $200 on Cheapflights?

    Yes, there are multiple flights from Illinois to Region of Ontario for under $200. The cheapest flight booked recently is on Multiple Airlines for just $185, but on average you can expect to pay $222.

  • Are there nonstop flights from Illinois to Region of Ontario for under $300 on Cheapflights?

    Cheapflights has at least 20 direct flights from Illinois to Region of Ontario under $300. A good price for a nonstop flight from Illinois to Region of Ontario is less than $295.

  • Are there last-minute flights available from Illinois to Region of Ontario for under $300?

    There are currently 20+ open flights from Illinois to Region of Ontario within the next 7 days for less than $300.

  • What days are nonstop flights available from Illinois to Region of Ontario?

    Days when nonstop flights are available for this flight are: Wednesday.

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

    6 flight departures from Illinois to Region of Ontario per day on average.
    Morning (6am - Noon) - 50% of flight departures
    Afternoon (Noon - 6pm) - 50% of flight departures

  • How long is the flight from Illinois to Region of Ontario?

    There are many flights that can get you from Illinois to Region of Ontario in 1h 42m. Fly via Porter Airlines to get the fastest option. Airlines will cover a distance of 437 mi. Most flights are nonstop.

  • What are the cheapest airlines to fly from Illinois to Region of Ontario one-way?

    $118 is the cheapest one-way deal found within the past few days, from Porter Airlines. You may also be able to find cheap deals on Sun Country Air and Air Canada, with prices starting from $133 and $138, respectively.

  • 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 Illinois to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your Illinois 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 Illinois to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Illinois 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 Illinois to Ontario that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois 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 Illinois to Ontario that allow pets onboard?

    Many airlines flying from Illinois 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 Illinois to Ontario?

    Yes, you can often find last-minute deals on Illinois 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 Illinois to Region of Ontario flight deals updated?

    The Illinois to Region of Ontario flight deals you see on this page were last updated on 5/4.

See more FAQs

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

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Top 4 airlines flying from Illinois to Ontario

Discover the top 4 airlines that operate flights from Illinois 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 2,795,183 searches. Data last updated May 5, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$118Average$452FlexibilityNo cancel feeOn-time67%
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United AirlinesCheapest$133Average$589FlexibilityNo cancel feeOn-time69%
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American AirlinesCheapest$137Average$585FlexibilityNo cancel feeOn-time71%
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Porter AirlinesCheapest$146Average$381FlexibilityNo cancel feeOn-time52%
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Search flights from Illinois to Ontario by cabin class

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

Find hourly flight availability from Illinois 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 May 5, 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
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6 AM
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6 PM

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ontario from Illinois today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from Illinois to Ontario by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes, we can. To see specific flights from Illinois 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 Illinois 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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