Cheap Flights from Chicago (ORD) to Ontario (ONT) from HK$1,273~

View HK$1,273 flight on Tue, 10 Mar 2026Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Los Angeles - Ontario Intl. Airport (ONT)

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Find Cheap Flights from Chicago (ORD) to Ontario (ONT)

Prices were available within the past 7 days and start at HK$1,273 for one-way flights and HK$2,772 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 14 Feb - Sat, 21 Feb
ORD
Chicago
ONT
Ontario
HK$2,772 Return, found 18 hours ago
HK$2,772
Return
found 18 hours ago
Select Delta flight, departing Sat, 14 Feb from Chicago to Ontario, returning Sat, 21 Feb, priced at HK$2,772 found 18 hours ago
Delta
Sat, 14 Feb - Fri, 20 Feb
ORD
Chicago
ONT
Ontario
HK$2,847 Return, found 18 hours ago
HK$2,847
Return
found 18 hours ago
Select Delta flight, departing Sat, 14 Feb from Chicago to Ontario, returning Fri, 20 Feb, priced at HK$2,847 found 18 hours ago

Find the cheapest month to fly from Chicago (ORD) to Ontario (ONT)

February is typically the cheapest month to fly

From HK$934 - HK$3,152 per traveller.
Chicago to Ontario route information
Origin airport
O'Hare Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Delta
Return price
HK$2,772
Distance
2713 km

Flights from Chicago to Los Angeles

Book cheap flights from Chicago (ORD) to Los Angeles (ONT) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Chicago (ORD) to Los Angeles (ONT) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Chicago (ORD) to Los Angeles (ONT) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Los Angeles flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Los Angeles and things to do in Los Angeles for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Los Angeles more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Los Angeles is HK$1,273 now!

 

Frequently asked questions

How much is a flight from ORD to ONT?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip flight from O'Hare Intl. Airport (ORD) to ONT was HK$2,772. Fares this cheap don't hang around, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from O'Hare Intl. Airport (ORD) to Los Angeles - Ontario Intl. Airport (ONT)?
Each air carrier has its own terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.
How do I find cheap flights from O'Hare Airport to ONT that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for ORD to ONT flights, you'll see a "no change fees" filter for you to select.
How far is the flight from O'Hare Intl. Airport (ORD) to ONT?
The flight distance from O'Hare Intl. Airport (ORD) to Los Angeles - Ontario Intl. Airport (ONT) is 2,700 kilometers. Listen to some music or bury your nose in a book and the journey will zip on by.
Which airlines fly direct from ORD to Ontario Airport?
Direct flights aren't available, so you'll have to make at least one stop between ORD and ONT. Use the layover time to stretch your legs and take a break.
Are O'Hare Airport to Los Angeles - Ontario Intl. Airport (ONT) flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can sometimes pick up a bargain, with some of the cheapest fares from O'Hare Intl. Airport (ORD) to Los Angeles - Ontario Intl. Airport (ONT) emerging a few weeks prior to the departure date. If you'd rather plan ahead, Expedia compares and updates the best flight deals continuously — as early as 12 months in advance in some cases. It depends on the carrier though, as not all airlines quote prices so far in advance.

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