CA $372 Cheap Flights from Rochester (ROC) to Ontario Intl. Airport (ONT)

View CA $372 flight on Fri, Aug 7, 2026Opens in a new window

Popular airlines from Greater Rochester Intl. Airport (ROC) to Los Angeles - Ontario Intl. Airport (ONT)

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Cheap flights from Rochester (ROC) to Ontario Intl. Airport (ONT)

Prices were available within the past 7 days and start at CA $372 for one-way flights and CA $520 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, Sep 20 - Tue, Sep 29
ROC
Rochester
ONT
Ontario
CA $520 Roundtrip, found 6 days ago
CA $520
Roundtrip
found 6 days ago
Select Delta flight, departing Sun, Sep 20 from Rochester to Ontario, returning Tue, Sep 29, priced at CA $520 found 6 days ago
Delta
Tue, Sep 29 - Fri, Oct 16
ROC
Rochester
ONT
Ontario
CA $622 Roundtrip, found 2 days ago
CA $622
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Sep 29 from Rochester to Ontario, returning Fri, Oct 16, priced at CA $622 found 2 days ago
Delta
Sat, Aug 22 - Fri, Sep 11
ROC
Rochester
ONT
Ontario
CA $670 Roundtrip, found 2 days ago
CA $670
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Aug 22 from Rochester to Ontario, returning Fri, Sep 11, priced at CA $670 found 2 days ago
Delta
Sun, Aug 16 - Fri, Aug 21
ROC
Rochester
ONT
Ontario
CA $671 Roundtrip, found 12 hours ago
CA $671
Roundtrip
found 12 hours ago
Select Delta flight, departing Sun, Aug 16 from Rochester to Ontario, returning Fri, Aug 21, priced at CA $671 found 12 hours ago
Delta
Fri, Aug 7 - Mon, Aug 17
ROC
Rochester
ONT
Ontario
CA $681 Roundtrip, found 1 day ago
CA $681
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Aug 7 from Rochester to Ontario, returning Mon, Aug 17, priced at CA $681 found 1 day ago
Delta
Fri, Aug 7 - Mon, Aug 17
ROC
Rochester
ONT
Ontario
CA $683 Roundtrip, found 1 day ago
CA $683
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Aug 7 from Rochester to Ontario, returning Mon, Aug 17, priced at CA $683 found 1 day ago
Delta
Fri, Aug 7 - Mon, Aug 17
ROC
Rochester
ONT
Ontario
CA $697 Roundtrip, found 1 day ago
CA $697
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Aug 7 from Rochester to Ontario, returning Mon, Aug 17, priced at CA $697 found 1 day ago
JetBlue Airways
Fri, Aug 7 - Mon, Aug 17
ROC
Rochester
ONT
Ontario
CA $745 Roundtrip, found 1 day ago
CA $745
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Fri, Aug 7 from Rochester to Ontario, returning Mon, Aug 17, priced at CA $745 found 1 day ago
American Airlines
Fri, Aug 7 - Mon, Aug 17
ROC
Rochester
ONT
Ontario
CA $821 Roundtrip, found 1 day ago
CA $821
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Aug 7 from Rochester to Ontario, returning Mon, Aug 17, priced at CA $821 found 1 day ago
Alaska Airlines
Fri, Aug 7 - Mon, Aug 17
ROC
Rochester
ONT
Ontario
CA $903 Roundtrip, found 1 day ago
CA $903
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Aug 7 from Rochester to Ontario, returning Mon, Aug 17, priced at CA $903 found 1 day ago

Frequently asked questions

How much is a flight from Greater Rochester Intl. Airport (ROC) to Los Angeles - Ontario Intl. Airport (ONT)?
Round-trip journeys from Greater Rochester Intl. Airport to Los Angeles - Ontario Intl. Airport (ONT) start from CA $520. This price is based on fares offered within the last 7 days on Expedia for flights departing within the next year — book now to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Greater Rochester Intl. Airport to ONT?
The majority of flights can be cancelled online, but each airline has its own set of terms and conditions. If you do decide to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from Greater Rochester Intl. Airport (ROC) to Los Angeles - Ontario Intl. Airport (ONT) that have flexible change policies?
Select our "No change fees" filter to find flexible ticketing options for your flight from Greater Rochester Intl. Airport to ONT. This allows you to snag a great deal in advance and still have the freedom to reschedule without any extra fees. Keep in mind that you'll need to cover the fare difference.
How many hours is the flight from Greater Rochester Intl. Airport to Ontario Airport?
The average flight between ROC and Ontario Airport is 6 hours and 59 minutes. If you get peckish on longer flights, pack a few healthy snacks in your carry-on luggage.
How far is the flight from ROC to ONT?
The flight distance from Greater Rochester Intl. Airport (ROC) to Ontario Airport is 3,600 kilometres. Pack yourself a drink, a snack and a good book to read. Keep yourself occupied and the hours will fly by.
Which airlines fly direct from ROC to ONT?
At the moment, no airlines offer flights directly from Greater Rochester Intl. Airport (ROC) to Ontario Airport. You'll need to book a flight with one or more stops. To get the best connections and price, lock in your fare well in advance.
Are Greater Rochester Intl. Airport (ROC) to Ontario Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can occasionally find a bargain, with some of the cheapest airfares from Greater Rochester Intl. Airport to Los Angeles - Ontario Intl. Airport (ONT) showing up a few weeks before the date of departure. If you'd rather book ahead of time, Expedia compares and updates the best flight deals regularly — as early as a year in advance in some cases. It depends on the carrier though, as not all airlines release prices that far in advance.

Travel information

Origin airport
Greater Rochester Intl.
Destination airport
Ontario Intl. Airport
Airlines serving
Delta
Roundtrip price
CA $520
Distance
3555 km

Book with confidence

Rochester to Los Angeles Flights

The easy way to book your flights from Rochester to Ontario Intl. Airport 

With Expedia, it’s simple to find and book flights to Ontario Intl. Airport from Rochester whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Ontario Intl. Airport, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Rochester to Ontario Intl. Airport today, tomorrow, or this week.  

 

Save dollars with cheap flights from Greater Rochester Intl., ROC to Ontario Intl. Airport, ONT 

Sort your search results by price to find great deals on your flight from Rochester to Ontario Intl. Airport—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Ontario Intl. Airport from Rochester currently is just CA $520 rising to CA $903.  

Here are more money-saving tips: 

  • Fly in September when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Ontario Intl. Airport  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Ontario Intl. Airport from Rochester 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Ontario Intl. Airport with Expedia today.

Rochester to Los Angeles Flights

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