
Popular airlines from Philadelphia International Airport (PHL) to Los Angeles - Ontario Intl. Airport (ONT)
- American Airlines
American Airlines
- Southwest Airlines
Southwest Airlines
- Delta
Delta
- Alaska Airlines
Alaska Airlines
- United
United
- JetBlue Airways
JetBlue Airways
- Frontier Airlines
Frontier Airlines
- Plan, book, fly with confidence
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Cheap flights from Philadelphia (PHL) to Ontario (ONT)
Prices were available within the past 7 days and start at CA $198 for one-way flights and CA $396 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.










Find the cheapest month to fly from Philadelphia (PHL) to Ontario (ONT)
September is typically the cheapest month to fly
Graph displaying average flight prices per month
Origin airport | Philadelphia Intl. |
Destination airport | Los Angeles - Ontario Intl. |
Airlines serving | Alaska Airlines, American Airlines, Delta, United |
Roundtrip price | CA $396 |
Distance | 3759 km |
Philadelphia to Los Angeles Flights
The easy way to book your flights from Philadelphia to Ontario
With Expedia, it’s simple to find and book flights to Ontario from Philadelphia 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 Los Angeles - Ontario Intl., 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 Philadelphia to Ontario today, tomorrow, or this week.
Save dollars with cheap flights from Philadelphia Intl., PHL to Los Angeles - Ontario Intl., ONT
Sort your search results by price to find great deals on your flight from Philadelphia to Ontario—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Ontario from Philadelphia currently is just CA $396 rising to CA $590.
Here are more money-saving tips:
- Fly in January when flight prices are normally at their lowest
- Book about a month to 6 weeks before you travel for the best prices to Ontario
- 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 from Philadelphia
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 with Expedia today.
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Top Routes from Philadelphia
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Top Routes to Ontario
- Ottawa to Ontario (YOW - ONT)
- Calgary to Ontario (YYC - ONT)
- Yellowknife to Ontario (YZF - ONT)
- Kelowna to Ontario (YLW - ONT)
- Detroit to Ontario (DTW - ONT)
- Charlottetown to Ontario (YYG - ONT)
- Saskatoon to Ontario (YXE - ONT)
- Winnipeg to Ontario (YWG - ONT)
- Halifax to Ontario (YHZ - ONT)
- Victoria to Ontario (YYJ - ONT)
- Québec to Ontario (YQB - ONT)
- Seattle to Ontario (SEA - ONT)
Top Routes to Ontario
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