Cheap Flight Tickets from Chicago (ORD) to Ontario (ONT), Starting at $214

Good to Know: Cheapest and Fastest ORD - ONT Flights

Useful information for finding best airline tickets from Chicago O'Hare International to Ontario International on your next trip.

Cheapest Round Trip Flight

$434

AS Alaska Airlines • 1 stop • 15h 29m

Aug 16 – Aug 23

The cheapest round trip flight from Chicago to Ontario (ORD-ONT-ORD) is currently $434

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Cheapest Direct Flight

$394

UA United Airlines • nonstop • 7h 24m

Jan 09

The cheapest nonstop flight from Chicago to Ontario (ORD-ONT) is currently $394

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Fastest Flight

7h 24m

The fastest nonstop flight from Chicago to Ontario (ORD-ONT) takes 7h 24m

Top Airlines Flying from Chicago to Ontario

Alaska Airlines -AS

Alaska Airlines

Delta Airline, DL

Delta Airlines

American Airlines, AA

American Airlines

United Airlines, UA

United Airlines

Latest Flight Deals from Chicago (ORD) to Ontario (ONT)

Compare and book low fare round-trip air tickets from Chicago to Ontario. Ideal for travelers with confirmed return itineraries.

Aug 16 - Aug 23, Economy
AS
Chicago → Ontario
15h 29m
1:01 PM - 8:30 PM • 1 stop
AS
Chicago → Ontario
12h 36m
8:02 AM - 5:58 PM • 1 stop
$434
Alaska Airlines
Aug 16 - Aug 23, Economy
AS
Chicago → Ontario
15h 9m
6:00 AM - 1:09 PM • 1 stop
AS
Chicago → Ontario
13h 30m
8:10 PM - 6:20 AM • 1 stop
$434
Alaska Airlines
Aug 16 - Aug 23, Economy
F9
Chicago → Ontario
23h 27m
9:57 PM - 10:04 AM • 1 stop
F9
Chicago → Ontario
21h 56m
9:33 AM - 12:49 AM • 1 stop
$663
Frontier Airlines
Aug 16 - Aug 23, Economy
AS
Chicago → Ontario
20h 30m
6:00 AM - 4:30 PM • 1 stop
AS
Chicago → Ontario
17h 10m
5:50 PM - 6:20 AM • 1 stop
$978
Alaska Airlines
Aug 16 - Aug 23, Economy
AS
Chicago → Ontario
23h 48m
8:02 AM - 8:30 PM • 1 stop
AS
Chicago → Ontario
17h 10m
5:50 PM - 6:20 AM • 1 stop
$1006
Alaska Airlines
Aug 16 - Aug 23, Economy
AS
Chicago → Ontario
20h 10m
1:01 PM - 11:11 PM • 1 stop
AS
Chicago → Ontario
17h 10m
5:50 PM - 6:20 AM • 1 stop
$1056
Alaska Airlines

Fly from Chicago to Ontario with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Chicago to Ontario? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Chicago to Ontario Flights

What are the airports in Chicago?
MDW,ORD
What’s the most popular airline flying from ORD to ONT?
The most popular airline flying from Chicago to Ontario are
Can I fly from ORD to ONT non-stop?
Yes, you can fly ORD to ONT non-stop on
Which airlines fly nonstop between Chicago and Ontario?
The non-stop flights between Chicago and Ontario are .
What’s the earliest departure time from ORD to ONT Airport?
The earliest flight leaves ORD at 6:00 am and lands in ONT - Ontario International
What are the airports in Ontario?
ONT
Can I make changes to my Chicago to Ontario flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from ORD to ONT?
Read the fare rules of the Chicago to Ontario air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Chicago and Ontario?
operate flights between Chicago and Ontario
How long does a flight from Chicago to Ontario take?
It takes approximately 4 hour to fly non-stop from ORD to ONT, which is 1699.87 miles by air.
Which airlines provide the cheapest flights from Chicago (ORD) to Ontario (ONT) ?
In the past couple of days, the cheapest tickets to ONT from ORD were found on AS : USD 434
Do I need a passport to fly between ORD and ONT?
No
What’s the latest departure time from ORD to ONT ?
The last flight leaves ORD at 9:57 pm

Essential Information for Booking Flights from Chicago (ORD) - AI Insights

What's the cheapest airline from ord to ont?
Frontier Airlines offers budget-friendly flights from Chicago O'Hare International Airport (ORD) to Ontario International Airport (ONT), with round-trip fares starting at a low cost. With 4 passengers, you can find affordable airfares on this airline for your July trip. Please note that prices may vary depending on the time of booking and availability.
What's the popular airline to fly from ord to ont?
You can fly from Chicago O'Hare International Airport (ord) to Ontario International Airport (ont) on Alaska Airlines. For a round-trip economy flight, book your tickets at least 2 days in advance to secure budget-friendly airfares and enjoy the convenience of non-stop flights.
What's the cheapest day of the week to fly from ord to ont?
The cheapest day to fly from Chicago O'Hare International Airport (ORD) to Ontario International Airport (ONT) is Sunday. Flying on Sundays can result in budget-friendly flights, making it a great option for travelers looking for affordable airfares.
What's the cheapest month to fly from ord to ont?
The cheapest month to fly from Chicago O'Hare International Airport (ORD) to Ontario International Airport (ONT) is October. You can find budget-friendly flights during this time. Look for airfare deals on cheap airline tickets.
Which airline/airlines fly from ord to ont?
The airlines that fly from Chicago O'Hare International Airport (ORD) to Ontario International Airport (ONT) include Avianca, JetBlue Airways, United Airlines, Southwest Airlines, Alaska Airlines, Frontier Airlines, Hawaiian Airlines, Aeromexico, American Airlines, and Delta Airlines. You can find low fares on these airfares for a round trip journey from ORD to ONT.
What are the available airfare options for flights from Chicago O'Hare International Airport to Ontario International Airport?
You can find affordable airfares on fareleaders.com for flights from Chicago O'Hare International Airport (ORD) to Ontario International Airport (ONT). Our website offers a range of airfare options, including economy, premium economy, business, and first class. You can search for flights using our user-friendly interface and filter results based on your preferred airline, departure time, and travel dates.
How far in advance can I book my airline ticket for a round trip journey?
For the best airfare deals, it's recommended to book your airline ticket at least 2 days in advance. However, some airlines offer discounts if you book even earlier, so be sure to check our website for the latest offers.
Can I find affordable airfares on fareleaders.com for flights to Milwaukee?
Yes, we have a range of airfare options available for flights to Milwaukee. You can search for flights using our interface and filter results based on your preferred airline, departure time, and travel dates.
What is an airplant and how does it relate to air travel?
An airplant is not a real thing, but rather a term used in the context of air travel. It's possible that you may be thinking of a different word or phrase. If you could provide more information or clarify your question, we'd be happy to try and assist you.
How do I search for flights on your website using specific travel dates like July?
To search for flights on our website using specific travel dates, simply enter your departure and return dates in the 'From' and 'To' fields respectively. You can also use our calendar view feature to visualize flight schedules and prices.
Are there any discounts or promotions available on airline tickets through fareleaders.com?
Yes, we regularly offer discounts and promotions on airline tickets. Be sure to check our website for the latest deals and sign up for our newsletter to receive exclusive offers.

Chicago (ORD) to Ontario (ONT): Airport Information

Origin Airport Chicago O'Hare International , Chicago, US
Destination Airport Ontario International , Ontario, US
Distance 1700 miles

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