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

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

The cheapest flights to O'Hare Intl. found within the past 7 days were CA $558 round trip and CA $265 one way. Prices and availability subject to change. Additional terms may apply.

Frequently asked questions

Are there direct flights from Ontario Airport to O'Hare Intl. Airport (ORD)?
Multiple airlines offer passengers flights straight from Ontario Airport to O’Hare Intl. Airport (ORD). These include American Airlines and Frontier Airlines — check them out if you’d like to land at your destination with no changeover.
What airlines fly from ONT to O'Hare Airport?
You can choose from a few airlines advertising direct flights between Ontario and Chicago. American Airlines (AA) is one of the most reputable. This carrier operates around 34 flights every month. If you need more options, look up the deals on offer from Frontier Airlines (F9). This airline operates 4 flights each month. Between the two, you’re bound to find a deal to suit your needs.
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 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!

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!

*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.