Beginning of main content
Round Trip Icon
Trip Type
Flight 1
Flight 2
Flight 3
Flight 4
Flight 5
Due to coronavirus (COVID-19) travel advisories, some destinations may be unavailable for certain dates. Find out more.

Change your flight without a fee on select flights

Feel at ease with free flight cancellations within 24 hours of booking

Flights Fare Calendar Find minimum fare between Philadelphia Intl. and Los Angeles - Ontario Intl. Click this button to get previous days data Click this button to get next days data $836 $717 $597 $478 $358 $239 $119 $0 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 2 3 4 5 6 7 8 S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T Price is $357 on Frontier Airlines Price is $325 on Frontier Airlines Price is $436 on American Airlines Price is $836 on Alaska Airlines Price is $470 on American Airlines Price is $256 on Frontier Airlines Price is $443 on Delta Price is $432 on Frontier Airlines Price is $336 on Frontier Airlines Price is $336 on Frontier Airlines Price is $445 on American Airlines Price is $459 on American Airlines Price is $357 on Frontier Airlines Price is $357 on Frontier Airlines Price is $394 on American Airlines Price is $367 on Frontier Airlines Price is $432 on Frontier Airlines Price is $410 on Frontier Airlines Price is $379 on American Airlines Price is $367 on Frontier Airlines Price is $367 on Frontier Airlines Price is $465 on Southwest Airlines Price is $325 on Frontier Airlines Price is $357 on Frontier Airlines Price is $357 on Frontier Airlines Price is $325 on Frontier Airlines Price is $325 on Frontier Airlines Price is $362 on Frontier Airlines Price is $372 on Frontier Airlines Price is $385 on United

Amazing PHL to ONT Flight Deals

The cheapest flights to Los Angeles - Ontario Intl. found within the past 7 days were $198 round trip and $99 one way. Prices and availability subject to change. Additional terms may apply.

Best Los Angeles - Ontario Intl. Flight and Hotel Packages

Los Angeles - Ontario Intl. flight + hotel packages - economy flights

FAQs about flights from Philadelphia Intl. Airport (PHL) to Los Angeles - Ontario Intl. Airport (ONT)

Can I catch a flight from Philadelphia, PA Airport (PHL-Philadelphia Intl.) to Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.) right now?

Make sure you check out our Covid-19 Travel Advisor to see if there are any current quarantine requirements and travel advice reports in place in Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.) when jet-setting from Philadelphia, PA Airport (PHL-Philadelphia Intl.).

Are there direct flights from PHL to Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.)?

If you'd prefer to get as quickly as possible from Philadelphia, PA Airport (PHL-Philadelphia Intl.) to ONT, take a look at American Airlines, Qatar Airways and Delta. No airlines advertise nonstop flights on this route, so you'll need to make at least one stopover.

If I am not able to travel due to COVID-19, can I change my booking to a later date?

For more info about changing your flight to Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.), please visit our Customer Service Portal.

How long is the flight from PHL to Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.)?

With the flight from Philadelphia Airport to Ontario Airport taking around 7 hours and 13 minutes, you will have time to get things done in the air. Make the most of the journey by bringing that book you've always wanted to read, checking out what's on the in-flight entertainment or catching up on some sleep. You may even be able to squeeze in all three before the plane lands.

What is the flight distance from Philadelphia, PA Airport (PHL-Philadelphia Intl.) to ONT?

With 2,610 mi between Philadelphia and Los Angeles, you'll have more than enough time to sit back and relax. Take advantage of the entertainment on board, write in your journal or catch up on some shut-eye.

What airlines fly from PHL to ONT?

Unfortunately, there aren't any airlines that fly direct from Philadelphia, PA Airport (PHL-Philadelphia Intl.) to Los Angeles - Ontario Intl. Airport (ONT). But don't let that small detail stop you. Use your stopover time as an opportunity to have a shop, check out the local food and drink and potentially find the next city you want to get to know better.

What is the best day to buy a plane ticket?

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2020. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Sunday, as data shows the end of the week is when prices are generally at their highest.

What are the cheapest days to fly?

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2020, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

How far in advance can you book a flight?

Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2020 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2 weeks to 2 months prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2020 saved nearly 40% when their return flights consisted of two different airlines or fare types.

*According to flight demand on Travelocity.com from January to December 2020. Savings are subject to change based on departure location, date and destination.

Philadelphia Intl. to Los Angeles - Ontario Intl. Flight FAQ

Traveling FromPhiladelphia Intl.
Traveling ToLos Angeles - Ontario Intl.
Shortest Flight Time hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price$198

Route Info

Flight path for flights from Philadelphia International Airport to LA/Ontario International Airport


Distance:
2,408.00 miles


Airlines & Aircraft Used on PHL to ONT Flight Routes


Airline Carrier
Aircraft
American Airlines
De Havilland Canada DHC-6 Twin Otter

Popular Flight Routes from Philadelphia (PHL)

Travelers at PHL love to visit these top cities. Roam to the top destinations from Philadelphia (PHL) today with the cheap prices from Travelocity!

Popular Flight Routes from Ontario (ONT)

Travelers at ONT love to visit these top cities. Roam to the top destinations from Ontario(ONT) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.