Cheap flights from Ontario (ONT) to Chicago (CHI) from $53

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 5/20. 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.
ONT — CHI
Mar 24 — Mar 311

The best prices from Ontario to Chicago are usually found in April or November, booked 71 days in advance, depart on a Tuesday or Saturday and return on a Thursday

Cheap flight deals from Ontario to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 19, 2024.

Popular in

July

Cheapest in

April

Round-trip from

$223

One-way from

$53
High demand for flights, 28% potential price rise
Best time to find cheap flights, 29% potential price drop
From Ontario to Chicago (CHI)
One-way flight from Ontario to Chicago (CHI)

What is the cheapest day to fly round-trip from Ontario to Chicago?

Departing on a Monday is a good option for securing a great price. You can expect to save up to 38% when planning your travel around this day of the week.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 46 days in advance, which can save you up to 79% on flights from Ontario to Chicago compared to booking the week you need them. Waiting 46 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 $297. For sooner than that we have options available in the next 3 days from $499.

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

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, January can be a great choice for travel to Chicago. Flights to Chicago from Ontario in January are about $302 on average during January, but can be found for as low as $93.

When is the cheapest time to fly from Ontario to Chicago (ONT - CHI)?

Unlike at noon, when flights are generally more expensive, you can save up to 14% on flights from Ontario to Chicago by exploring options for tickets in the afternoon.

Cheap Frontier flights from Ontario to Chicago

Explore cheap flight options specifically provided by Frontier for the route between Ontario and Chicago. 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 3,145,932 searches. Data last updated March 19, 2024.
Peruse some of the lowest-priced Frontier flights we've found from Ontario to Chicago. Make sure to check back often as deals are often changing.
Mon 4/1512:59 amONT - ORD
1 stop21h 57mFrontier
Sat 4/206:27 pmORD - ONT
1 stop7h 32mFrontier
Deal found 3/17$108
Tue 4/2312:59 amONT - MDW
1 stop8h 39mFrontier
Sat 4/2710:30 amMDW - ONT
1 stop15h 29mFrontier
Deal found 3/18$110
Sat 5/47:26 amONT - ORD
1 stop15h 30mFrontier
Wed 5/86:27 pmORD - ONT
1 stop7h 32mFrontier
Deal found 3/17$111
Tue 4/167:16 amONT - ORD
1 stop15h 40mFrontier
Sat 4/206:27 pmORD - ONT
1 stop7h 32mFrontier
Deal found 3/17$119
Tue 4/93:56 pmONT - ORD
1 stop7h 24mFrontier
Wed 4/176:27 pmORD - ONT
1 stop7h 32mFrontier
Deal found 3/17$124
Sat 4/2710:57 pmONT - ORD
1 stop10h 32mFrontier
Wed 5/16:27 pmORD - ONT
1 stop7h 32mFrontier
Deal found 3/18$125
Tue 4/2312:59 amONT - MDW
2 stops11h 40mFrontier
Sat 4/279:29 pmMDW - ONT
1 stop11h 02mFrontier
Deal found 3/18$134
Mon 4/1510:56 pmONT - MDW
1 stop20h 48mFrontier
Fri 4/195:30 amMDW - ONT
1 stop26h 56mFrontier
Deal found 3/18$135
Thu 4/1812:56 amONT - ORD
1 stop22h 00mFrontier
Tue 4/236:27 pmORD - ONT
1 stop7h 32mFrontier
Deal found 3/16$136

Cheap Delta flights from Ontario to Chicago

Explore cheap flight options specifically provided by Delta for the route between Ontario and Chicago. 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 3,145,932 searches. Data last updated March 19, 2024.
Browse through some of the cheapest Delta flights traveling from Ontario to Chicago. Check back soon if you're not seeing flights that suit your needs.
Fri 4/2610:00 pmONT - ORD
2 stops12h 35mDelta
Wed 5/12:20 pmORD - ONT
1 stop10h 20mDelta
Deal found 3/17$303
Sat 3/2312:38 pmONT - ORD
1 stop8h 10mDelta
Sat 3/305:15 pmORD - ONT
1 stop6h 43mDelta
Deal found 3/18$382
Sat 3/2312:38 pmONT - ORD
1 stop8h 10mDelta
Sat 3/3012:28 pmORD - ONT
2 stops11h 30mDelta
Deal found 3/18$387
Mon 3/251:20 pmONT - ORD
1 stop6h 15mDelta
Sun 3/316:59 pmORD - ONT
1 stop6h 47mDelta
Deal found 3/17$450
Sun 3/2412:38 pmONT - ORD
1 stop7h 00mDelta
Sat 3/307:10 amORD - ONT
1 stop7h 04mDelta
Deal found 3/17$460
Sat 3/2312:38 pmONT - MDW
1 stop7h 14mDelta
Sat 3/306:19 amMDW - ONT
2 stops9h 50mDelta
Deal found 3/18$465
Sun 3/2412:38 pmONT - ORD
1 stop7h 00mDelta
Mon 3/256:59 pmORD - ONT
1 stop6h 47mDelta
Deal found 3/17$538

Cheap Ontario to Chicago flights in March & April 2024

Find cheap flight options from Ontario to Chicago specifically for the months of March and April 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,145,932 searches. Prices were last updated on March 19, 2024.
Listed are some of the best fares we've found on flights departing from Ontario to Chicago in 2024. More deals are always being added, so be sure to check back regularly.
Tue 4/2312:59 amONT - MDW
1 stop8h 39mFrontier
Sat 4/2710:30 amMDW - ONT
1 stop15h 29mFrontier
Deal found 3/18$110
Tue 4/2312:59 amONT - MDW
2 stops11h 40mFrontier
Sat 4/279:29 pmMDW - ONT
1 stop11h 02mFrontier
Deal found 3/18$134
Mon 4/1510:56 pmONT - MDW
1 stop20h 48mFrontier
Fri 4/195:30 amMDW - ONT
1 stop26h 56mFrontier
Deal found 3/18$135
Tue 4/97:27 amONT - MDW
1 stop26h 11mFrontier
Tue 4/1610:59 pmMDW - ONT
1 stop24h 58mFrontier
Deal found 3/17$137
Tue 4/3010:49 pmONT - MDW
1 stop10h 47mFrontier
Mon 5/610:59 pmMDW - ONT
1 stop10h 04mFrontier
Deal found 3/18$138
Wed 4/1012:59 amONT - MDW
1 stop16h 16mFrontier
Tue 4/1610:59 pmMDW - ONT
1 stop24h 58mFrontier
Deal found 3/18$139
Tue 4/912:59 amONT - ORD
1 stop21h 57mFrontier
Wed 4/176:27 pmORD - ONT
1 stop13h 59mFrontier
Deal found 3/18$139
Fri 4/1210:59 pmONT - MDW
1 stop10h 37mFrontier
Wed 4/175:45 amMDW - ONT
1 stop9h 36mFrontier
Deal found 3/18$140
Tue 4/238:48 pmONT - ORD
1 stop12h 41mFrontier
Wed 4/246:27 pmORD - ONT
1 stop7h 32mFrontier
Deal found 3/18$140

Ontario to Chicago 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Chicago in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Listed are some of the best fares we've found on flights departing from Ontario to Chicago in 2024. More deals are always being added, so be sure to check back regularly.
Tue 4/2312:59 amONT - MDW
1 stop8h 39mFrontier
Sat 4/2710:30 amMDW - ONT
1 stop15h 29mFrontier
Deal found 3/18$110
Fri 5/1012:55 amONT - MDW
1 stop13h 43mFrontier
Sat 5/119:29 pmMDW - ONT
1 stop11h 02mFrontier
Deal found 3/18$119
Tue 4/2312:59 amONT - MDW
2 stops11h 40mFrontier
Sat 4/279:29 pmMDW - ONT
1 stop11h 02mFrontier
Deal found 3/18$134
Mon 4/1510:56 pmONT - MDW
1 stop20h 48mFrontier
Fri 4/195:30 amMDW - ONT
1 stop26h 56mFrontier
Deal found 3/18$135
Sat 5/117:26 amONT - MDW
1 stop7h 12mFrontier
Sat 5/119:29 pmMDW - ONT
1 stop11h 02mFrontier
Deal found 3/18$136
Tue 4/97:27 amONT - MDW
1 stop26h 11mFrontier
Tue 4/1610:59 pmMDW - ONT
1 stop24h 58mFrontier
Deal found 3/17$137
Tue 4/3010:49 pmONT - MDW
1 stop10h 47mFrontier
Mon 5/610:59 pmMDW - ONT
1 stop10h 04mFrontier
Deal found 3/18$138
Wed 4/1012:59 amONT - MDW
1 stop16h 16mFrontier
Tue 4/1610:59 pmMDW - ONT
1 stop24h 58mFrontier
Deal found 3/18$139
Tue 4/912:59 amONT - ORD
1 stop21h 57mFrontier
Wed 4/176:27 pmORD - ONT
1 stop13h 59mFrontier
Deal found 3/18$139

Ontario to Chicago flights leaving soon

Find last-minute flight options from Ontario to Chicago 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 3,145,932 searches. Data last updated March 19, 2024.
Have a look at some of the last-minute flights available departing from Ontario to Chicago. To prevent any unwanted surprises, users should verify their flight info before booking.
Mon 3/259:55 pmONT - MDW
1 stop11h 32mFrontier
Sat 3/305:03 pmMDW - ONT
1 stop16h 47mFrontier
Deal found 3/18$171
Mon 3/259:55 pmONT - MDW
1 stop11h 32mFrontier
Wed 3/275:10 amMDW - ONT
1 stop13h 44mFrontier
Deal found 3/17$172
Mon 3/259:55 pmONT - MDW
1 stop11h 32mFrontier
Mon 5/65:30 amMDW - ONT
1 stop20h 29mFrontier
Deal found 3/18$177
Mon 3/253:35 pmONT - MDW
1 stop17h 52mFrontier
Thu 3/2810:56 pmMDW - ONT
1 stop9h 41mFrontier
Deal found 3/18$197
Mon 3/259:55 pmONT - ORD
1 stop6h 35mMultiple Airlines
Mon 5/66:27 pmORD - ONT
1 stop7h 32mMultiple Airlines
Deal found 3/18$198
Mon 3/259:55 pmONT - MDW
1 stop11h 32mFrontier
Sat 4/65:03 pmMDW - ONT
1 stop16h 47mFrontier
Deal found 3/18$204
Tue 3/263:56 pmONT - ORD
1 stop7h 24mFrontier
Sun 3/3110:15 amORD - ONT
1 stop6h 51mFrontier
Deal found 3/18$207
Tue 3/2612:48 pmONT - ORD
2 stops10h 32mFrontier
Sun 3/3110:15 amORD - ONT
1 stop6h 51mFrontier
Deal found 3/18$212
Mon 3/259:55 pmONT - MDW
1 stop11h 32mFrontier
Mon 4/110:57 pmMDW - ONT
1 stop9h 40mFrontier
Deal found 3/18$218

One-way flights to Chicago from Ontario

Search for one-way flight options from Ontario to Chicago. 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 3,145,932 searches. Data last updated March 19, 2024.
Some of the best available deals we've found on one-way flights from Ontario to Chicago. Users in need of a round-trip flight from Ontario to Chicago instead should update the search form at the top of page.
Mon 5/2012:49 amONT - MDW
1 stop10h 31mFrontier
Deal found 3/18$53
Tue 4/912:59 amONT - ORD
1 stop21h 57mFrontier
Deal found 3/18$53
Mon 5/1312:59 amONT - MDW
1 stop19h 06mFrontier
Deal found 3/18$57
Thu 4/187:16 amONT - MDW
1 stop9h 59mFrontier
Deal found 3/17$63
Thu 4/1812:56 amONT - ORD
1 stop22h 00mFrontier
Deal found 3/18$63
Tue 4/912:59 amONT - MDW
1 stop8h 39mFrontier
Deal found 3/18$64
Wed 4/107:26 amONT - ORD
1 stop15h 30mFrontier
Deal found 3/18$64
Sun 5/1212:59 amONT - MDW
1 stop8h 39mFrontier
Deal found 3/17$65
Tue 4/912:59 amONT - ORD
1 stop21h 57mFrontier
Deal found 3/18$65

Find flights from Ontario to Chicago within your budget

Customize your flight search to find flights from Ontario to Chicago 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 3,145,932 searches. Data last updated March 19, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$108 - $312

Route

Depart

Return

Price

OntarioChicago O'Hare Intl

ONT - ORD

ONTORD

Ontario

Mon 4/15

1 stop21h 57m

Chicago O'Hare Intl

Sat 4/20

1 stop7h 32m

$108

OntarioChicago Midway

ONT - MDW

ONTMDW

Ontario

Tue 4/23

1 stop8h 39m

Chicago Midway

Sat 4/27

1 stop15h 29m

$110

OntarioChicago O'Hare Intl

ONT - ORD

ONTORD

Ontario

Sat 5/4

1 stop15h 30m

Chicago O'Hare Intl

Wed 5/8

1 stop7h 32m

$111

OntarioChicago Midway

ONT - MDW

ONTMDW

Ontario

Fri 5/10

1 stop13h 43m

Chicago Midway

Sat 5/11

1 stop11h 02m

$119

OntarioChicago O'Hare Intl

ONT - ORD

ONTORD

Ontario

Tue 4/16

1 stop15h 40m

Chicago O'Hare Intl

Sat 4/20

1 stop7h 32m

$119

OntarioChicago O'Hare Intl

ONT - ORD

ONTORD

Ontario

Sat 4/13

1 stop8h 41m

Chicago O'Hare Intl

Mon 4/15

2 stops14h 04m

$149

OntarioChicago O'Hare Intl

ONT - ORD

ONTORD

Ontario

Wed 4/3

1 stop12h 32m

Chicago O'Hare Intl

Tue 4/9

1 stop17h 41m

$166

OntarioChicago O'Hare Intl

ONT - ORD

ONTORD

Ontario

Fri 4/26

2 stops12h 35m

Chicago O'Hare Intl

Wed 5/1

1 stop10h 20m

$303

OntarioChicago O'Hare Intl

ONT - ORD

ONTORD

Ontario

Fri 4/19

1 stop7h 46m

Chicago O'Hare Intl

Mon 4/22

1 stop8h 13m

$312

Flights are sorted by cheapest first

Deals found on 3/17

When is the best time to book a flight from Ontario to Chicago?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Chicago. Price data was last updated on January 28, 2024.
The best time to book flights from Ontario to Chicago is 71 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

When is the cheapest time to fly from Ontario to Chicago?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Chicago. Price data was last updated on March 17, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to Chicago flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Chicago by month

Plan your trip from Ontario to Chicago by taking into account the cheapest months to travel. The average price of a one-way flight from Ontario to Chicago is currently $61 while a round-trip flight costs $166. Price data was last updated on March 10, 2024.

Currently, February is the cheapest month in which you can book a flight from Ontario to Chicago (average of $245). Flying from Ontario to Chicago in June is currently the most expensive (average of $361). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$248

February

$245

March

$280

April

$288

May

$292

June

$361

July

$338

August

$276

September

$258

October

$248

November

$271

December

$248

Temperature and rainfall in Chicago by month

Plan your trip to Chicago by taking into account the average temperature and rainfall totals by month.

CHI

Temperature

23 - 73.4 °F

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated March 19, 2024.
To help decide which airline to fly from Ontario to Chicago, see what other customers have to say about Frontier, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
9,150 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.4

Food

7.3

Crew

8.6

Overall

8.1

Reviews

1 / 10

We would prefer paper boarding pass. First time using baggage kiosks and found it confusing but should do better next time. Not much people contact in the terminal. The flight itself was good.

8.1
Very good
9,150 reviews
8.1
Very good
9,150 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.4

Food

7.3

Crew

8.6

Overall

8.1

Reviews

1 / 10

We would prefer paper boarding pass. First time using baggage kiosks and found it confusing but should do better next time. Not much people contact in the terminal. The flight itself was good.

8.1
Very good
11,551 reviews
8.1
Very good
9,150 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.4

Food

7.3

Crew

8.6

Overall

8.1

Reviews

1 / 10

We would prefer paper boarding pass. First time using baggage kiosks and found it confusing but should do better next time. Not much people contact in the terminal. The flight itself was good.

7.4
Good
11,602 reviews
8.1
Very good
9,150 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.4

Food

7.3

Crew

8.6

Overall

8.1

Reviews

1 / 10

We would prefer paper boarding pass. First time using baggage kiosks and found it confusing but should do better next time. Not much people contact in the terminal. The flight itself was good.

7.3
Good
15,312 reviews
8.1
Very good
9,150 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.4

Food

7.3

Crew

8.6

Overall

8.1

Reviews

1 / 10

We would prefer paper boarding pass. First time using baggage kiosks and found it confusing but should do better next time. Not much people contact in the terminal. The flight itself was good.

6.7
Okay
1,610 reviews
8.1
Very good
9,150 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.4

Food

7.3

Crew

8.6

Overall

8.1

Reviews

1 / 10

We would prefer paper boarding pass. First time using baggage kiosks and found it confusing but should do better next time. Not much people contact in the terminal. The flight itself was good.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Chicago. 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 from for flights from Ontario to Chicago?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Chicago. You should not have trouble finding flights to Chicago from Ontario; the airport handles an average of 1 outbound flight to Chicago per day. You should also have plenty of airline options to choose from since 5 airlines have flights from the Ontario airport to Chicago. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

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

    Yes, there are multiple flights from Ontario to Chicago for under $200. The cheapest flight booked recently is on Frontier for just $108, but on average you can expect to pay $130.

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

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

  • What is the cheapest airline to fly from Ontario to Chicago round-trip?

    Cheapflights users have booked flights from Ontario to Chicago round-trip from $108. This flight start at 63% lower than the current average price 3 months from now.

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

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

  • What does ONT to ORD mean?

    ONT and ORD 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. ONT to ORD refers to a flight route from Ontario Airport to Chicago O'Hare Intl Airport. Chicago Midway Airport (MDW), Chicago Greater Rockford Airport (RFD) are other airports near this flight route and their unique identifiers/IATA codes.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

Top 5 airlines flying from Ontario to Chicago

Discover the top 5 airlines that operate flights from Ontario to Chicago. 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 3,145,932 searches. Data last updated March 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$105Average$263FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
FrontierCheapest$127Average$245FlexibilityNo cancel feeOn-time62%
Search Frontier flights
United AirlinesCheapest$213Average$439FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$284Average$510FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$324Average$460FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Search flights from Ontario to Chicago by cabin class

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

Hourly flight availability from Ontario to Chicago

Find hourly flight availability from Ontario to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 19, 2024.
100%of flight departuresEarly morningMidnight to 6 am
0%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

Weekly flight availability from Ontario to Chicago

Explore weekly flight availability from Ontario to Chicago. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 19, 2024.
Sunday1daily flight
Monday2daily flights
Tuesday2daily flights
Wednesday2daily flights
Thursday2daily flights
Friday2daily flights
Saturday2daily flights

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 Ontario to Chicago?

When you search for this flight from Ontario to Chicago, 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 Ontario to Chicago?

Cheapflights helps you find that perfect flight to Chicago from Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Yes, we can. To see specific flights from Ontario to Chicago 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 Ontario to Chicago become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Chicago from Ontario today and book when prices fit your budget.

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