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Cheap flights from Illinois to Ontario (ONT) from $49

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 6/3. 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 — ONT
May 11 — May 181
From?
To?
Sat 5/11
Sat 5/18
1 adult, Economy
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How far in advance should I book a flight from Illinois to Ontario?

Travelers have found it’s best to book a flight 45 days in advance to save up to 61% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 45 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Illinois to Ontario 1-2 weeks in advance for as low as $323, or $459 for flights within the next 24 hours.

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

Due to multiple factors, expect to potentially pay more when booking in March. For low rates, September can be a great choice for travel to Ontario. Flights to Ontario from Illinois in September are about $304 on average during September, but can be found for as low as $64.

When is the cheapest time to fly from Illinois to Ontario (IL - ONT)?

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

Cheap Frontier flights from Illinois to Ontario

Explore cheap flight options specifically provided by Frontier 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 2,719,943 searches. Data last updated May 6, 2024.
Take a peek at the cheapest Frontier flights we've detected traveling from Illinois to Ontario. Deals update often to give you more flight options matching your criteria
Mon 5/207:59 pmORD - ONT
1 stop18h 55mFrontier
Wed 5/222:35 pmONT - ORD
1 stop8h 38mFrontier
Deal found 5/5$118
Mon 6/38:04 pmSTL - ONT
1 stop5h 55mFrontier
Tue 6/412:59 amONT - STL
1 stop6h 30mFrontier
Deal found 5/5$119
Mon 6/38:04 pmSTL - ONT
1 stop5h 55mFrontier
Wed 6/58:55 pmONT - STL
1 stop11h 47mFrontier
Deal found 5/5$125
Mon 5/207:59 pmORD - ONT
1 stop18h 55mFrontier
Sat 5/255:41 pmONT - ORD
1 stop9h 19mFrontier
Deal found 5/5$127
Sat 5/1811:41 pmSTL - ONT
1 stop8h 36mFrontier
Tue 5/2110:42 pmONT - STL
1 stop9h 31mFrontier
Deal found 5/5$128
Wed 5/225:01 amMDW - ONT
1 stop10h 33mFrontier
Sat 5/255:41 pmONT - MDW
1 stop10h 09mFrontier
Deal found 5/5$129
Wed 5/2210:21 pmSTL - ONT
1 stop12h 19mFrontier
Sun 6/212:59 amONT - STL
1 stop6h 37mFrontier
Deal found 5/5$133
Mon 5/207:23 pmSTL - ONT
1 stop19h 31mFrontier
Fri 5/2411:04 pmONT - STL
1 stop9h 09mFrontier
Deal found 5/5$137
Tue 6/47:59 pmORD - ONT
1 stop19h 16mFrontier
Tue 6/115:26 pmONT - ORD
1 stop9h 59mFrontier
Deal found 5/5$138

Cheap Delta flights from Illinois to Ontario

Explore cheap flight options specifically provided by Delta 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 2,719,943 searches. Data last updated May 6, 2024.
Take a gander at the lowest prices we've found on Delta flights from Illinois to Ontario. Deals are refreshing constantly so come back soon for more options.
Wed 5/296:07 amORD - ONT
2 stops12h 29mDelta
Tue 6/42:13 pmONT - ORD
1 stop7h 53mDelta
Deal found 5/5$272
Wed 5/296:07 amORD - ONT
2 stops12h 29mDelta
Sat 6/16:00 amONT - ORD
2 stops12h 55mDelta
Deal found 5/5$277
Tue 6/111:25 pmORD - ONT
2 stops12h 17mDelta
Sun 6/1611:40 amONT - ORD
1 stop10h 18mDelta
Deal found 5/4$284
Sat 9/215:00 pmMLI - ONT
1 stop7h 28mDelta
Tue 9/2412:45 pmONT - MLI
1 stop7h 41mDelta
Deal found 5/4$307
Sat 5/1112:31 pmORD - ONT
1 stop9h 35mDelta
Sat 5/181:20 pmONT - ORD
1 stop6h 38mDelta
Deal found 5/4$322
Sat 5/1111:59 amORD - ONT
2 stops11h 40mDelta
Sat 5/181:20 pmONT - ORD
1 stop6h 38mDelta
Deal found 5/5$327
Sat 9/215:00 pmMLI - ONT
1 stop7h 28mDelta
Tue 9/2412:45 pmONT - MLI
1 stop7h 41mDelta
Deal found 5/5$329
Sat 5/1111:59 amORD - ONT
2 stops10h 07mDelta
Sat 5/186:42 pmONT - ORD
2 stops11h 57mDelta
Deal found 5/5$332
Mon 6/33:27 pmSTL - ONT
1 stop9h 20mDelta
Wed 6/511:22 amONT - STL
2 stops11h 34mDelta
Deal found 5/5$378

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 2,719,943 searches. Prices were last updated on May 6, 2024.
Scroll through some of the best deals on flights from Illinois to Ontario in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Mon 5/207:59 pmORD - ONT
1 stop18h 55mFrontier
Wed 5/222:35 pmONT - ORD
1 stop8h 38mFrontier
Deal found 5/5$118
Mon 6/38:04 pmSTL - ONT
1 stop5h 55mFrontier
Tue 6/412:59 amONT - STL
1 stop6h 30mFrontier
Deal found 5/5$119
Mon 6/38:04 pmSTL - ONT
1 stop5h 55mFrontier
Wed 6/58:55 pmONT - STL
1 stop11h 47mFrontier
Deal found 5/5$125
Mon 5/207:59 pmORD - ONT
1 stop18h 55mFrontier
Sat 5/255:41 pmONT - ORD
1 stop9h 19mFrontier
Deal found 5/5$127
Wed 5/225:01 amMDW - ONT
1 stop10h 33mFrontier
Wed 5/297:45 pmONT - MDW
1 stop8h 05mFrontier
Deal found 5/5$127
Sat 5/1811:41 pmSTL - ONT
1 stop8h 36mFrontier
Tue 5/2110:42 pmONT - STL
1 stop9h 31mFrontier
Deal found 5/5$128
Wed 5/225:01 amMDW - ONT
1 stop10h 33mFrontier
Sat 5/255:41 pmONT - MDW
1 stop10h 09mFrontier
Deal found 5/5$129
Wed 5/2210:21 pmSTL - ONT
1 stop12h 19mFrontier
Sun 6/212:59 amONT - STL
1 stop6h 37mFrontier
Deal found 5/5$133
Mon 5/207:23 pmSTL - ONT
1 stop19h 31mFrontier
Fri 5/2411:04 pmONT - STL
1 stop9h 09mFrontier
Deal found 5/5$137

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 2,719,943 searches. Data last updated May 6, 2024.
Scroll through some of the best deals on flights from Illinois to Ontario in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Mon 5/207:59 pmORD - ONT
1 stop18h 55mFrontier
Wed 5/222:35 pmONT - ORD
1 stop8h 38mFrontier
Deal found 5/5$118
Mon 6/38:04 pmSTL - ONT
1 stop5h 55mFrontier
Tue 6/412:59 amONT - STL
1 stop6h 30mFrontier
Deal found 5/5$119
Mon 6/38:04 pmSTL - ONT
1 stop5h 55mFrontier
Wed 6/58:55 pmONT - STL
1 stop11h 47mFrontier
Deal found 5/5$125
Mon 5/207:59 pmORD - ONT
1 stop18h 55mFrontier
Sat 5/255:41 pmONT - ORD
1 stop9h 19mFrontier
Deal found 5/5$127
Wed 5/225:01 amMDW - ONT
1 stop10h 33mFrontier
Wed 5/297:45 pmONT - MDW
1 stop8h 05mFrontier
Deal found 5/5$127
Sat 5/1811:41 pmSTL - ONT
1 stop8h 36mFrontier
Tue 5/2110:42 pmONT - STL
1 stop9h 31mFrontier
Deal found 5/5$128
Wed 5/225:01 amMDW - ONT
1 stop10h 33mFrontier
Sat 5/255:41 pmONT - MDW
1 stop10h 09mFrontier
Deal found 5/5$129
Wed 5/2210:21 pmSTL - ONT
1 stop12h 19mFrontier
Sun 6/212:59 amONT - STL
1 stop6h 37mFrontier
Deal found 5/5$133
Mon 5/207:23 pmSTL - ONT
1 stop19h 31mFrontier
Fri 5/2411:04 pmONT - STL
1 stop9h 09mFrontier
Deal found 5/5$137

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 2,719,943 searches. Data last updated May 6, 2024.
Take a look at some of the direct flights traveling from Illinois to Ontario in the near future. Users seeking other options on flights from Illinois to Ontario should update the search form at the top of the page.
Tue 6/182:35 pmMDW - ONT
Nonstop4h 05mSouthwest
Thu 6/209:55 amONT - MDW
Nonstop3h 45mSouthwest
Deal found 5/5$708

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 2,719,943 searches. Data last updated May 6, 2024.
Have a look at some of the last-minute flights available departing from Illinois to Ontario. To prevent any unwanted surprises, users should verify their flight info before booking.
Sun 5/1210:59 pmSTL - ONT
1 stop10h 04mFrontier
Sun 5/1911:30 pmONT - STL
1 stop8h 43mFrontier
Deal found 5/5$138
Tue 5/1410:55 pmMDW - ONT
1 stop9h 31mFrontier
Tue 5/212:25 pmONT - MDW
1 stop18h 44mFrontier
Deal found 5/5$139
Sun 5/1210:59 pmSTL - ONT
1 stop24h 58mFrontier
Wed 5/1511:09 pmONT - STL
1 stop9h 04mFrontier
Deal found 5/5$140
Tue 5/1410:55 pmMDW - ONT
1 stop9h 31mFrontier
Wed 5/157:36 pmONT - MDW
1 stop8h 14mFrontier
Deal found 5/5$141
Sun 5/1210:59 pmSTL - ONT
1 stop14h 17mFrontier
Mon 5/1312:59 amONT - STL
1 stop12h 51mFrontier
Deal found 5/5$141
Tue 5/146:27 pmORD - ONT
1 stop7h 32mFrontier
Mon 5/2012:59 amONT - ORD
1 stop18h 16mFrontier
Deal found 5/5$142
Mon 5/1310:59 pmMDW - ONT
1 stop10h 04mFrontier
Mon 5/2012:59 amONT - MDW
1 stop10h 50mFrontier
Deal found 5/5$142
Sun 5/1210:27 pmMDW - ONT
1 stop9h 59mFrontier
Tue 5/212:25 pmONT - MDW
1 stop18h 44mFrontier
Deal found 5/5$146
Mon 5/136:27 pmORD - ONT
1 stop7h 32mFrontier
Mon 5/2012:59 amONT - ORD
1 stop18h 16mFrontier
Deal found 5/5$147

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 2,719,943 searches. Data last updated May 6, 2024.
Some of the best available deals we've found on one-way flights from Illinois to Ontario. Users in need of a round-trip flight from Illinois to Ontario instead should update the search form at the top of page.
Mon 6/38:04 pmSTL - ONT
1 stop5h 55mFrontier
Deal found 5/5$49
Sat 5/185:56 pmORD - ONT
1 stop8h 03mFrontier
Deal found 5/5$64
Wed 5/157:00 amORD - ONT
1 stop8h 21mMultiple Airlines
Deal found 5/5$68
Mon 5/207:23 pmSTL - ONT
1 stop19h 31mFrontier
Deal found 5/5$69
Mon 5/207:59 pmORD - ONT
1 stop18h 55mFrontier
Deal found 5/5$69
Mon 6/108:22 pmSTL - ONT
1 stop5h 37mFrontier
Deal found 5/5$70
Sat 8/245:56 pmORD - ONT
1 stop7h 48mFrontier
Deal found 5/5$70
Tue 5/1412:29 pmORD - ONT
1 stop9h 18mFrontier
Deal found 5/5$71
Thu 8/228:00 amORD - ONT
1 stop6h 15mFrontier
Deal found 5/5$73

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 2,719,943 searches. Data last updated May 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$118 - $297

Route

Depart

Return

Price

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Mon 5/20

1 stop18h 55m

Ontario

Wed 5/22

1 stop8h 38m

$118

Lambert-St LouisOntario

STL - ONT

STLONT

Lambert-St Louis

Mon 6/3

1 stop5h 55m

Ontario

Tue 6/4

1 stop6h 30m

$119

Lambert-St LouisOntario

STL - ONT

STLONT

Lambert-St Louis

Mon 6/3

1 stop5h 55m

Ontario

Wed 6/5

1 stop11h 47m

$125

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Mon 5/20

1 stop18h 55m

Ontario

Sat 5/25

1 stop9h 19m

$127

Chicago MidwayOntario

MDW - ONT

MDWONT

Chicago Midway

Wed 5/22

1 stop10h 33m

Ontario

Wed 5/29

1 stop8h 05m

$127

Lambert-St LouisOntario

STL - ONT

STLONT

Lambert-St Louis

Sat 5/18

1 stop8h 36m

Ontario

Tue 5/21

1 stop9h 31m

$128

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Wed 5/29

2 stops12h 29m

Ontario

Tue 6/4

1 stop7h 53m

$272

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 6/15

1 stop12h 28m

Ontario

Tue 7/9

2 stops10h 51m

$279

Chicago O'Hare IntlOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Fri 5/24

1 stop7h 16m

Ontario

Tue 5/28

1 stop6h 36m

$297

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 May 6, 2024.
Get a feel of what it's like to fly with Frontier, Delta and American Airlines from Illinois to Ontario by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
6,084 reviews
Check prices

Boarding

8.3

Comfort

8.1

Food

7.3

Crew

8.7

Overall

8.2

Entertainment

7.8

Reviews

1 / 10

I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.

Southwest
8.2
Very good
6,084 reviews
Southwest
8.2
Very good
6,084 reviews
Check prices

Boarding

8.3

Comfort

8.1

Food

7.3

Crew

8.7

Overall

8.2

Entertainment

7.8

Reviews

1 / 10

I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.

Alaska Airlines
8.1
Very good
9,134 reviews
Southwest
8.2
Very good
6,084 reviews
Check prices

Boarding

8.3

Comfort

8.1

Food

7.3

Crew

8.7

Overall

8.2

Entertainment

7.8

Reviews

1 / 10

I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.

Delta
8.1
Very good
10,818 reviews
Southwest
8.2
Very good
6,084 reviews
Check prices

Boarding

8.3

Comfort

8.1

Food

7.3

Crew

8.7

Overall

8.2

Entertainment

7.8

Reviews

1 / 10

I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.

United Airlines
7.4
Good
11,090 reviews
Southwest
8.2
Very good
6,084 reviews
Check prices

Boarding

8.3

Comfort

8.1

Food

7.3

Crew

8.7

Overall

8.2

Entertainment

7.8

Reviews

1 / 10

I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.

American Airlines
7.3
Good
14,697 reviews
Southwest
8.2
Very good
6,084 reviews
Check prices

Boarding

8.3

Comfort

8.1

Food

7.3

Crew

8.7

Overall

8.2

Entertainment

7.8

Reviews

1 / 10

I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.

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.

  • What airport do you fly into for flights to Ontario from Illinois?

    Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Ontario from Illinois.

  • Can I find flights from Illinois to Ontario for under $200 on Cheapflights?

    Yes, there are multiple flights from Illinois to Ontario for under $200. The cheapest flight booked recently is on Frontier for just $118, but on average you can expect to pay $133.

  • Are there nonstop flights from Illinois to Ontario for under $800 on Cheapflights?

    Cheapflights has at least 1 direct flight from Illinois to Ontario under $800. A good price for a nonstop flight from Illinois to Ontario is less than $708.

  • Are there last-minute flights available from Illinois to Ontario for under $200?

    There are currently 20+ open flights from Illinois to Ontario within the next 7 days for less than $200.

  • What are the most popular routes from Illinois to Ontario?

    When deciding which route to take from Illinois to Ontario consider Chicago O'Hare Intl - Ontario, Chicago Midway - Ontario or Lambert-St Louis - Ontario as they are the most popular.

  • What are the most popular airlines that fly from Illinois to Ontario?

    Consider American Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from Illinois to Ontario.

  • What does ORD to ONT mean?

    ORD and ONT are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. ORD to ONT refers to a flight route from Chicago O'Hare Intl Airport to Ontario Airport. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Springfield Capital Airport (SPI).

  • 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 Ontario flight deals updated?

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

See more FAQs

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Top 5 airlines flying from Illinois to Ontario

Discover the top 5 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 2,719,943 searches. Data last updated May 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$120Average$213FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$126Average$249FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
DeltaCheapest$276Average$427FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$311Average$486FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$311Average$561FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Denver to Los Angeles flights
USA to Egypt flights
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Minneapolis to Denver flights
New Orleans to New York flights
Tampa to Miami flights
Texas to California flights
Dallas to Newark Airport flights
New York to London flights
Charlotte to Boston flights
Los Angeles to Las Vegas flights
Illinois to Coolangatta flights

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.
First Class
Business Class
Prem Econ Class
Economy Class

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 6, 2024.
0%of flight departuresEarly morningMidnight to 6 am
100%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
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?

When you search for this flight from Illinois to Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Illinois to Ontario, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Illinois to Ontario flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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