Cheap flights from Ontario (ONT) to O'Hare Intl (ORD)

ONT — ORD
Dec 12 — Dec 191

How to find the cheapest flight from Ontario (ONT) to O'Hare Intl (ORD)

All the information you need to plan the best ONT to ORD flight in 2022: compare Ontario to O'Hare Intl flight prices with the expected peak season, weather and rainfall in O'Hare Intl.

ONT - ORD

Price

$177 - $752

ORD

Temperature

23 - 73.4 °F

ORD

Rainfall

1.7 - 4.9 inches

Popular inJulyHigh demand for flights, 48% potential price rise
Cheapest inFebruaryBest time to find cheap flights, 54% potential price drop
Round-trip from$177From Ontario to Chicago O'Hare Intl
One-way from$70One-way flight from Ontario to Chicago O'Hare Intl

How far in advance should I book a flight from Ontario to Chicago O'Hare Intl Airport?

Find a great deal and save up to 32% by booking at least 61 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ontario to Chicago O'Hare Intl Airport within the next two weeks, with the cheapest ticket starting at $387.

What is the cheapest month to fly from Ontario to Chicago O'Hare Intl Airport?

February is one of the best times of the year to fly to Chicago O'Hare Intl Airport from Ontario. Prices for February average $322 per person but you can even find prices for as low as $85. The most expensive prices can be found in the month of June. Opting for a February flight can save you 43% on your journey compared to booking in June

When is the cheapest time to fly from Ontario to Chicago O'Hare Intl Airport (ONT - ORD)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Chicago O'Hare Intl Airport as you normally would.

Cheap flights from Ontario to O'Hare Intl in December, January 2022

The best prices found for ONT to ORD flights for December, January
Jan 24 - Jan 31
ONT

Ontario

ORD

Chicago O'Hare Intl

1 stop

6h 22m
ORD

Chicago O'Hare Intl

ONT

Ontario

1 stop

21h 19m
$146

Multiple Airlines

Pick Dates

Deal found 12/5

Jan 25 - Jan 31
ONT

Ontario

ORD

Chicago O'Hare Intl

1 stop

8h 26m
ORD

Chicago O'Hare Intl

ONT

Ontario

1 stop

9h 30m
$147

Multiple Airlines

Pick Dates

Deal found 12/7

Jan 12 - Jan 17
ONT

Ontario

ORD

Chicago O'Hare Intl

1 stop

9h 59m
ORD

Chicago O'Hare Intl

ONT

Ontario

1 stop

21h 19m
$161

Multiple Airlines

Pick Dates

Deal found 12/4

Ontario to O'Hare Intl 2022 flight deals

Cheap flights to O'Hare Intl from Ontario found for this year
Dec 12 - Dec 13
ONT

Ontario

ORD

Chicago O'Hare Intl

1 stop

9h 31m
ORD

Chicago O'Hare Intl

ONT

Ontario

1 stop

10h 26m
$167

Frontier

Pick Dates

Deal found 12/6

Dec 7 - Dec 13
ONT

Ontario

ORD

Chicago O'Hare Intl

1 stop

12h 47m
ORD

Chicago O'Hare Intl

ONT

Ontario

1 stop

10h 26m
$168

Frontier

Pick Dates

Deal found 12/4

Dec 12 - Dec 15
ONT

Ontario

ORD

Chicago O'Hare Intl

1 stop

11h 40m
ORD

Chicago O'Hare Intl

ONT

Ontario

1 stop

11h 30m
$188

Frontier

Pick Dates

Deal found 12/5

Cheap Frontier flights from Ontario to O'Hare Intl

Feb 24 - Feb 26
ONT

Ontario

ORD

Chicago O'Hare Intl

1 stop

8h 47m
ORD

Chicago O'Hare Intl

ONT

Ontario

1 stop

11h 27m
$165

Frontier

Pick Dates

Deal found 12/6

Dec 12 - Dec 13
ONT

Ontario

ORD

Chicago O'Hare Intl

1 stop

9h 31m
ORD

Chicago O'Hare Intl

ONT

Ontario

1 stop

10h 26m
$167

Frontier

Pick Dates

Deal found 12/6

Feb 22 - Feb 26
ONT

Ontario

ORD

Chicago O'Hare Intl

1 stop

10h 59m
ORD

Chicago O'Hare Intl

ONT

Ontario

1 stop

11h 27m
$168

Frontier

Pick Dates

Deal found 12/5

Cheap United Airlines flights from Ontario to O'Hare Intl

Dec 13 - Dec 18
ONT

Ontario

ORD

Chicago O'Hare Intl

1 stop

10h 58m
ORD

Chicago O'Hare Intl

ONT

Ontario

1 stop

15h 26m
$454

United Airlines

Pick Dates

Deal found 12/5

Dec 13 - Dec 21
ONT

Ontario

ORD

Chicago O'Hare Intl

1 stop

16h 38m
ORD

Chicago O'Hare Intl

ONT

Ontario

1 stop

7h 29m
$467

United Airlines

Pick Dates

Deal found 12/5

Dec 12 - Dec 18
ONT

Ontario

ORD

Chicago O'Hare Intl

1 stop

13h 42m
ORD

Chicago O'Hare Intl

ONT

Ontario

1 stop

15h 26m
$474

United Airlines

Pick Dates

Deal found 12/5

Last minute flights from Ontario to O'Hare Intl

Late deals on return flights to O'Hare Intl from Ontario, departing today and this week
Dec 12 - Dec 13
ONT

Ontario

ORD

Chicago O'Hare Intl

1 stop

9h 31m
ORD

Chicago O'Hare Intl

ONT

Ontario

1 stop

10h 26m
$167

Frontier

Pick Dates

Deal found 12/6

Dec 12 - Dec 13
ONT

Ontario

ORD

Chicago O'Hare Intl

1 stop

9h 31m
ORD

Chicago O'Hare Intl

ONT

Ontario

1 stop

10h 26m
$168

Frontier

Pick Dates

Deal found 12/5

Dec 12 - Dec 15
ONT

Ontario

ORD

Chicago O'Hare Intl

1 stop

11h 40m
ORD

Chicago O'Hare Intl

ONT

Ontario

1 stop

11h 30m
$188

Frontier

Pick Dates

Deal found 12/5

One-way flights to O'Hare Intl from Ontario

The cheapest one-way flights from Ontario to O'Hare Intl
Jan 11
ONT

Ontario

ORD

Chicago O'Hare Intl

1 stop

8h 26m
$70

Multiple Airlines

Pick Dates

Deal found 12/7

Jan 17
ONT

Ontario

ORD

Chicago O'Hare Intl

1 stop

17h 44m
$72

Frontier

Pick Dates

Deal found 12/6

Jan 18
ONT

Ontario

ORD

Chicago O'Hare Intl

1 stop

8h 26m
$73

Multiple Airlines

Pick Dates

Deal found 12/6

Related info for your journey

Useful info, stats and facts about Ontario to O'Hare Intl flights.

What airport do you fly from for flights from Ontario to Chicago O'Hare Intl?

Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Chicago O'Hare Intl from Ontario. Booking flights from Ontario (ONT) to Chicago O'Hare Intl should be relatively easy as there are 0 daily outbound flights to Chicago O'Hare Intl from 8 different airlines.

Which airlines flying from Ontario to Chicago O'Hare Intl have flexible cancellations due to COVID-19?

Some of our airline partners flying from Ontario to Chicago O'Hare Intl have new flexible policies in place due to COVID-19. American Airlines, United Airlines, and Frontier are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like American Airlines with this kind of flexibility.

Can I find flights from Ontario to Chicago O'Hare Intl Airport for under $200 on Cheapflights?

Yes, there are multiple flights from Ontario to Chicago O'Hare Intl Airport for under $200. The cheapest flight booked recently is on Multiple Airlines for just $146, but on average you can expect to pay $180.

Are there last-minute flights available from Ontario to Chicago O'Hare Intl Airport for under $200?

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

What is the cheapest airline to fly from Ontario to Chicago O'Hare Intl Airport round-trip?

Our cheapest airline available from Ontario to Chicago O'Hare Intl Airport is Frontier. Our recent data shows that you can find tickets from as low as $165 on this airline. Frontier is currently priced 57% below the average price you’ll pay for this route.

What are the most popular airlines that fly from Ontario to Chicago O'Hare Intl Airport?

When booking a flight from Ontario to Chicago O'Hare Intl Airport, you may want to consider flying on Undisclosed Carrier, American Airlines or Alaska Airlines as they are the most popular for this route.

What are the cheapest flights from Ontario to Chicago O'Hare Intl Airport?

On average you can expect to pay $584 for a flight from Ontario to Chicago O'Hare Intl Airport. The cheapest flight overall is $55 while the most popular route, (Ontario - Chicago O'Hare Intl) is currently priced at $168.

Alternative routes for Ontario to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Ontario to O'Hare Intl

The chart below displays the airlines Cheapflights users traveling from Ontario to O'Hare Intl choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
FrontierCheapest$100Average$207FlexibilityNo cancel feeOn-time62%COVID-19 safety
Search Frontier flights
Spirit AirlinesCheapest$156Average$283FlexibilityNo cancel feeOn-time65%COVID-19 safety
Search Spirit Airlines flights
DeltaCheapest$250Average$472FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
American AirlinesCheapest$260Average$556FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
United AirlinesCheapest$280Average$557FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights

Hourly flight availability from Ontario to O'Hare Intl

See what time of day planes typically take off from Ontario to O'Hare Intl
0%of flight departuresEarly morningMidnight to 6 am
50%of flight departuresMorning6 am to noon
50%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM