$78 Find Cheap Flights from Ontario to Philadelphia - Compare and Save

Two cabin classes are available on flights from Ontario to Philadelphia:

• Economy Class
• First Class

A nonstop flight from Ontario to Philadelphia takes 00m, covering 2,349 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Round-trip flights from Ontario to Philadelphia range from $337 to $509, with an average of $398 over the past 12 months. Anything below $337 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 46% above the $398 route average. Book 13 weeks before departure for the lowest fares.

One-way fares from Ontario to Philadelphia are currently lower than usual. Average one-way flight prices are about $166, which is 25% below the typical average for this route.

Philadelphia Airport (PHL) hosts 5 major car rental companies, with daily rates starting from around $28 for economy cars. Top options include:

• Payless
• Dollar
• Hertz
• Thrifty
• Budget

Flights from Ontario to Philadelphia usually depart from Ontario (ONT) and arrive at Philadelphia (PHL).

One-stop flights from Ontario to Philadelphia most commonly connect through:

• Phoenix Sky Harbor Intl (PHX) - 49% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) - 13% of one-stop connections
• Denver Intl (DEN) - 11% of one-stop connections
• Atlanta Hartsfield-Jackson (ATL) - 10% of one-stop connections

Yes. Flexible dates can save you up to 32% on flights from Ontario to Philadelphia. Monday is the cheapest departure day at $358 round-trip on average, while Sunday is the most expensive at $522, a difference of $164.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Flying via Phoenix Sky Harbor Intl (PHX) gives the shortest average 1-stop total travel time at 7h 39m, compared with 7h 48m via Chicago Midway (MDW) and 7h 56m via Chicago O'Hare Intl (ORD).

Philadelphia is 3 hours ahead of Ontario (Eastern Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Philadelphia are Philadelphia Convention Center, Rittenhouse Square and Philadelphia Stadium. These are among the most viewed places in Philadelphia on KAYAK.

On-board amenities on the Ontario to Philadelphia flight route can vary depending on the airline. Some exclusive amenities when flying business class include additional luggage allowance, in-flight entertainment, complimentary snacks and drinks, a lie-flat seat, a blanket, and additional legroom. So, upgrading to business class is a great decision on this long-haul flight.

After booking cheap flights from Ontario to Philadelphia, expect a stop or more depending on your airline's flight route. The layover city and duration also vary among airlines. The common layovers are major cities, including Phoenix, Chicago, Charlotte, Dallas, Houston, Denver, Las Vegas, Houston, Salt Lake City, Austin, Atlanta, Oakland, Dallas, Austin, San Francisco, Portland, Orlando, and Seattle.

The carry-on and checked luggage allowances depend on the airline. If you book Frontier Airlines, your carry-on should be 24 x 16 x 10 inches at most. You’re allowed to bring an additional bag weighing at most 50 lb. If you book American Airlines, your carry-on should be a maximum of 22 x 14 x 9 inches, and another bag with a maximum weight of 50 lb is allowed.

The airport line train is a reliable way to travel to downtown Philadelphia from PHL airport. These trains depart hourly, and the trip takes about 24 minutes. Another option is the Line 37 bus that gets to the city in approximately 39 minutes. You can also rent a car at the airport terminal and drive to your destination.