CA $184 Cheap Flights from Philadelphia (PHL) to Ontario (ONT)

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Cheap flights from Philadelphia (PHL) to Ontario (ONT)

Prices were available within the past 7 days and start at CA $184 for one-way flights and CA $371 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon., May 13 - Wed., May 15
PHL
Philadelphia
ONT
Ontario
CA $371 Roundtrip, found 3 days ago
CA $371
Roundtrip
found 3 days ago
Select Delta flight, departing Mon., May 13 from Philadelphia to Ontario, returning Wed., May 15, priced at CA $371 found 3 days ago
Delta
Mon., May 13 - Wed., May 15
PHL
Philadelphia
ONT
Ontario
CA $377 Roundtrip, found 3 days ago
CA $377
Roundtrip
found 3 days ago
Select Delta flight, departing Mon., May 13 from Philadelphia to Ontario, returning Wed., May 15, priced at CA $377 found 3 days ago
Frontier Airlines
Mon., Jul. 29 - Sat., Aug. 3
PHL
Philadelphia
ONT
Ontario
CA $384 Roundtrip, found 4 days ago
CA $384
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Mon., Jul. 29 from Philadelphia to Ontario, returning Sat., Aug. 3, priced at CA $384 found 4 days ago
Frontier Airlines
Sat., Jul. 20 - Tue., Jul. 23
PHL
Philadelphia
ONT
Ontario
CA $418 Roundtrip, found 3 days ago
CA $418
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sat., Jul. 20 from Philadelphia to Ontario, returning Tue., Jul. 23, priced at CA $418 found 3 days ago
American Airlines
Fri., May 3 - Sun., May 5
PHL
Philadelphia
ONT
Ontario
CA $443 Roundtrip, found 6 days ago
CA $443
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri., May 3 from Philadelphia to Ontario, returning Sun., May 5, priced at CA $443 found 6 days ago
American Airlines
Mon., May 13 - Wed., May 15
PHL
Philadelphia
ONT
Ontario
CA $443 Roundtrip, found 3 days ago
CA $443
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon., May 13 from Philadelphia to Ontario, returning Wed., May 15, priced at CA $443 found 3 days ago
American Airlines
Sun., May 5 - Sat., May 11
PHL
Philadelphia
ONT
Ontario
CA $446 Roundtrip, found 5 days ago
CA $446
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sun., May 5 from Philadelphia to Ontario, returning Sat., May 11, priced at CA $446 found 5 days ago
Delta
Mon., May 13 - Wed., May 15
PHL
Philadelphia
ONT
Ontario
CA $447 Roundtrip, found 3 days ago
CA $447
Roundtrip
found 3 days ago
Select Delta flight, departing Mon., May 13 from Philadelphia to Ontario, returning Wed., May 15, priced at CA $447 found 3 days ago
Delta
Thu., May 23 - Mon., May 27
PHL
Philadelphia
ONT
Ontario
CA $450 Roundtrip, found 17 hours ago
CA $450
Roundtrip
found 17 hours ago
Select Delta flight, departing Thu., May 23 from Philadelphia to Ontario, returning Mon., May 27, priced at CA $450 found 17 hours ago
Delta
Mon., May 13 - Wed., May 15
PHL
Philadelphia
ONT
Ontario
CA $450 Roundtrip, found 3 days ago
CA $450
Roundtrip
found 3 days ago
Select Delta flight, departing Mon., May 13 from Philadelphia to Ontario, returning Wed., May 15, priced at CA $450 found 3 days ago
Flight from Philadelphia to Ontario (PHL - ONT) route information
Origin airport
Philadelphia Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta
Roundtrip price
CA $371
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 $371 rising to CA $450.  

Here are more money-saving tips: 

  • Fly in May 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.

Frequently asked questions

How much is a flight from PHL to Los Angeles - Ontario Intl. Airport (ONT)?
Start packing your suitcase, because round-trip journeys from PHL to Los Angeles - Ontario Intl. Airport (ONT) start from CA $371. That’s based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices can rise quickly, so book today to secure the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from PHL to Ontario Airport?
Every air carrier has its own set of terms and conditions. If you do decide to cancel, follow the instructions on our Customer Service Portal.
How do I find cheap flights from PHL to Los Angeles - Ontario Intl. Airport (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 Philadelphia Airport to Ontario Airport flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Philadelphia Intl. Airport (PHL) to ONT?
You’ll be cruising at altitude for a while, as the flight distance between Philadelphia and Ontario is 3,800 kilometers. Put together a playlist of your favorite podcasts before you leave home to stay entertained during your flight.
Which airlines fly direct from Philadelphia Intl. Airport (PHL) to Los Angeles - Ontario Intl. Airport (ONT)?
Unfortunately, there are no airlines that directly fly between PHL and Ontario Airport. You’ll have to book a flight with one or more stops.
Are Philadelphia Airport to Ontario Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can sometimes nab a bargain, with some of the cheapest airfares from PHL to Los Angeles - Ontario Intl. Airport (ONT) arising a few weeks before the departure date. If you’d rather plan ahead of time, Expedia compares and updates all the best flight deals continually — as early as a year in advance in some cases. It depends on the carrier though, as not every airline advertises prices so far in advance.
Ontario nearby Airports

Los Angeles

Philadelphia to Los Angeles Intl.
CA $177.86

Orange County

Philadelphia to John Wayne
CA $581.71
*Available to Expedia members.