Cheap Flights From O'Hare Intl. (ORD) To Los Angeles - Ontario Intl. (ONT)

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Cheapest Flights from Chicago (ORD) to Ontario (ONT)

The cheapest flights to Los Angeles - Ontario Intl. found within the past 7 days were CA $596 round trip and CA $289 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Feb. 21 - Wed, Mar. 11
ORD
Chicago
ONT
Ontario
CA $596 Roundtrip, found 1 day ago
CA $596
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Sat, Feb. 21 from Chicago to Ontario, returning Wed, Mar. 11, priced at CA $596 found 1 day ago
Sat, Feb. 21 - Fri, Mar. 6
ORD
Chicago
ONT
Ontario
CA $637 Roundtrip, found 1 day ago
CA $637
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Sat, Feb. 21 from Chicago to Ontario, returning Fri, Mar. 6, priced at CA $637 found 1 day ago

Frequently asked questions

Are there direct flights from O'Hare Intl. Airport (ORD) to Los Angeles - Ontario Intl. Airport (ONT)?
Multiple airlines offer nonstop flights from O'Hare Airport to ONT. These include American Airlines and Frontier Airlines — start with them if you'd like to get to Ontario as fast as possible.
What airlines fly from O'Hare Intl. Airport (ORD) to Ontario Airport?
If you're heading to Ontario from Chicago, you'll find a few airlines that fly direct. One of the most well-known is American Airlines (AA), which operates 30 flights every month. You'll want to also pore through the deals available through Frontier Airlines (F9). This carrier operates 4 flights every month on the Chicago to Ontario route. Be sure to compare the two airlines to pick up the best fare.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

Popular Flight Routes from Chicago (ORD)

Travelers at ORD love to visit these top cities. Roam to the top destinations from Chicago (ORD) today with the cheap prices from Travelocity!

Popular Flight Routes from Ontario (ONT)

Travelers at ONT love to visit these top cities. Roam to the top destinations from Ontario(ONT) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.