S$209 Cheap Flights from Philadelphia to Ontario

View S$209 flight on Thu, 4 Sep, 2025Opens in a new window

Popular airlines from Philadelphia Intl. Airport (PHL) to Los Angeles - Ontario Intl. Airport (ONT)

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Cheap Flights from Philadelphia to Ontario (PHL-ONT)

Prices were available within the past 7 days and start at S$209 for one-way flights and 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

From S$177 - S$535 per traveller.

Graph displaying average flight prices per month

Philadelphia to Ontario route information
Origin airport
Philadelphia Intl.
Destination airport
Los Angeles - Ontario Intl.
Distance
3759 km
Average flight time
7 hours 5 mins

Perfect flights from Philadelphia to Ontario

Your Journey from Philadelphia to Ontario

Start your unforgettable journey with Expedia. Our broad selection of flights from Philadelphia to Ontario caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Delta, United, American Airlines. Our selection of flights from Philadelphia Intl. to Los Angeles - Ontario Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 9 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Philadelphia to Ontario Flights

Experience the joy of finding cheap flights from Philadelphia Intl. to Los Angeles - Ontario Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$209 and roundtrip prices *.
 

Pre-Flight Essentials

Ensure a smooth journey from Philadelphia to Ontario with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Ontario

Picture yourself stepping off the plane in Ontario and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Philadelphia to Ontario Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Philadelphia to Ontario.
 

Beyond the Flight – Exploring Ontario

With Expedia, your adventure extends beyond the flight. Explore Ontario at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Philadelphia to Ontario with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Philadelphia to Ontario with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

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 . 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 kilometres. Put together a playlist of your favourite 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.

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Ontario Airports

Los Angeles

Philadelphia to Los Angeles Intl.
S$354.70

Orange County