NZ$242 Cheap Flights Philadelphia to Ontario (PHL-ONT)

View NZ$242 flight on Wed, 22 Oct 2025Opens in a new window

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

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

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, 4 Nov - Tue, 18 Nov
PHL
Philadelphia
ONT
Ontario
NZ$516 Return, found 22 hours ago
NZ$516
Return
found 22 hours ago
Select Alaska Airlines flight, departing Tue, 4 Nov from Philadelphia to Ontario, returning Tue, 18 Nov, priced at NZ$516 found 22 hours ago
Delta
Thu, 23 Oct - Tue, 11 Nov
PHL
Philadelphia
ONT
Ontario
NZ$517 Return, found 22 hours ago
NZ$517
Return
found 22 hours ago
Select Delta flight, departing Thu, 23 Oct from Philadelphia to Ontario, returning Tue, 11 Nov, priced at NZ$517 found 22 hours ago
Delta
Sat, 1 Nov - Tue, 18 Nov
PHL
Philadelphia
ONT
Ontario
NZ$532 Return, found 22 hours ago
NZ$532
Return
found 22 hours ago
Select Delta flight, departing Sat, 1 Nov from Philadelphia to Ontario, returning Tue, 18 Nov, priced at NZ$532 found 22 hours ago
Delta
Thu, 23 Oct - Thu, 13 Nov
PHL
Philadelphia
ONT
Ontario
NZ$551 Return, found 22 hours ago
NZ$551
Return
found 22 hours ago
Select Delta flight, departing Thu, 23 Oct from Philadelphia to Ontario, returning Thu, 13 Nov, priced at NZ$551 found 22 hours ago
Alaska Airlines
Tue, 4 Nov - Sat, 15 Nov
PHL
Philadelphia
ONT
Ontario
NZ$567 Return, found 22 hours ago
NZ$567
Return
found 22 hours ago
Select Alaska Airlines flight, departing Tue, 4 Nov from Philadelphia to Ontario, returning Sat, 15 Nov, priced at NZ$567 found 22 hours ago
Delta
Sat, 8 Nov - Thu, 27 Nov
PHL
Philadelphia
ONT
Ontario
NZ$568 Return, found 22 hours ago
NZ$568
Return
found 22 hours ago
Select Delta flight, departing Sat, 8 Nov from Philadelphia to Ontario, returning Thu, 27 Nov, priced at NZ$568 found 22 hours ago
Delta
Fri, 31 Oct - Tue, 18 Nov
PHL
Philadelphia
ONT
Ontario
NZ$583 Return, found 22 hours ago
NZ$583
Return
found 22 hours ago
Select Delta flight, departing Fri, 31 Oct from Philadelphia to Ontario, returning Tue, 18 Nov, priced at NZ$583 found 22 hours ago
Hawaiian Airlines
Sat, 15 Nov - Fri, 5 Dec
PHL
Philadelphia
ONT
Ontario
NZ$632 Return, found 22 hours ago
NZ$632
Return
found 22 hours ago
Select Hawaiian Airlines flight, departing Sat, 15 Nov from Philadelphia to Ontario, returning Fri, 5 Dec, priced at NZ$632 found 22 hours ago
American Airlines
Sat, 25 Oct - Sun, 26 Oct
PHL
Philadelphia
ONT
Ontario
NZ$698 Return, found 1 day ago
NZ$698
Return
found 1 day ago
Select American Airlines flight, departing Sat, 25 Oct from Philadelphia to Ontario, returning Sun, 26 Oct, priced at NZ$698 found 1 day ago
United
Fri, 28 Nov - Tue, 16 Dec
PHL
Philadelphia
ONT
Ontario
NZ$790 Return, found 22 hours ago
NZ$790
Return
found 22 hours ago
Select United flight, departing Fri, 28 Nov from Philadelphia to Ontario, returning Tue, 16 Dec, priced at NZ$790 found 22 hours ago
Flight from Philadelphia to Ontario route information
Origin airport
Philadelphia Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, Delta, Hawaiian Airlines, United
Return price
NZ$516
Distance
3759 km
Average flight time
8 hours 24 mins

Perfect flights from Philadelphia to Ontario

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Philadelphia to Ontario. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Philadelphia Intl. to Los Angeles - Ontario Intl. ticket options cater to your travel preferences, with incredible one-way fares from NZ$242 and roundtrip prices from NZ$516. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Los Angeles - Ontario Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Ontario.

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 NZ$516. 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.

Explore a world of travel with Expedia

Ontario Flight Deals

Los Angeles

Philadelphia to Los Angeles Intl.
NZ$488.65

Orange County

Burbank

*Available to Expedia members.