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Cheap flights from Chicago to Ontario International (CHI - ONT)

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The best prices from Chicago to Ontario International are usually found in September or February, booked 48 days in advance, depart on a Saturday or Tuesday and return on a Tuesday

$440
$370
$300
$232
Price
$232 - $383
Most popular in December High demand for flights, 6% potential price rise
Cheapest in September Best time to find cheap flights, 3% potential price drop
Average price $266 Price for this month
Cheapest price $232 From Chicago to Ontario International

Cheap flights from Chicago to Ontario International in February 2020

The best prices found for ORD to ONT flights for February
5 Feb - 7 Feb
$159pp
ORD
Chicago O'Hare Intl
United Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
United Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
2 Feb - 5 Feb
$163pp
ORD
Chicago O'Hare Intl
American Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
American Airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
18 Feb - 25 Feb
$189pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl

Chicago to Ontario International 2020 flight deals

Cheap flights to Ontario International from Chicago found for this year
26 Aug - 2 Sep
$154pp
ORD
Chicago O'Hare Intl
United Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
United Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
26 Feb - 6 Mar
$202pp
ORD
Chicago O'Hare Intl
American Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
American Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
27 Feb - 3 Mar
$204pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl

Last minute flights from Chicago to Ontario International

Late deals on round-trip flights to Ontario International from Chicago, departing today and this week
2 Feb - 6 Feb
$159pp
ORD
Chicago O'Hare Intl
American Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
American Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
27 Jan - 4 Feb
$204pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
30 Jan - 4 Feb
$212pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl

Alternative routes for Chicago to Ontario International

Destination information for Ontario International

Things to know before you go. Useful info for your trip from Chicago to Ontario International

Airports servicing Chicago

Chicago-O'Hare Intl (ORD)
Rockford (RFD)

Airports servicing Ontario

Weekly flight availability
from Chicago to Ontario International
Sunday
2 daily flights
Monday
2 daily flights
Tuesday
2 daily flights
Wednesday
2 daily flights
Thursday
2 daily flights
Friday
2 daily flights
Saturday
1 daily flight

Related info for your journey

Useful info, stats and facts about Chicago to Ontario International flights.

Flight FAQs

From Chicago to Ontario International

What days are nonstop flights available from Chicago to Ontario?

You can find nonstop flights on the following days: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday.

How popular is this flight route?

Within the past month, 1,548 users have taken a look at flights from Chicago to Ontario.

What percent of flights are delayed?

Airlines departing from Chicago to Ontario are usually on time.

How many passenger seats are available on a flight on this route?

On average, there are a total of 79,634,588 seats offered from Chicago to Ontario per day.

What is the cheapest airline for this route?

The cheapest airline for this route is American Airlines Inc.. When flying this airline from Chicago to Ontario on average you can expect to find 416 flights available for this route daily.

How long does the flight from Chicago to Ontario International take?

A nonstop flight takes up to 5 hours, covering a distance of 1,064 miles.

How many flights depart from Chicago to Ontario International on average per day?

On average, you can expect to see 3 flights from Chicago to Ontario a day.
Afternoon (Noon - 6pm) - 33% of flight departures
Evening (6pm - Midnight) - 67% of flight departures

Is Chicago weather warmer or cooler than Ontario?

With an average temperature of 95 °F, peak weather can be found in July. As a traveler, expect to see changes in flight prices during that period. The temperatures in Ontario are hotter than in Chicago.