Cheap Flights from Philadelphia to Ontario

Cheapest flights from Philadelphia to Ontario

Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Philadelphia to Ontario. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.

Cheapest one way flight

$75

Frontier Airlines

1 layover

9h 50m

02/03/2026

The cheapest one-way flight from Philadelphia to Ontario departs on 02/03/2026, is operated by Frontier Airlines and costs $75

Cheapest round trip flight

—

There is no information about the cheapest roundtrip flight from Philadelphia to Ontario

The fastest flight

9h 50m

Fastest flight from Philadelphia to Ontario takes 9h 50m

Direct flights

Several times a week

There are direct flights on this route 3 days a week: Mo, Tu, and We

Distance

3792km

Timezone difference

3h

The distance between Philadelphia and Ontario is 3792km (2351 miles). The time difference between Philadelphia and Ontario is 3h

Remember that on average the ideal time to book flights is 2 months before departure!

Airfare from Philadelphia to Ontario by month

The minimum one-way ticket price from Philadelphia to Ontario is $97 (February 2026), while the maximum is $178 (January 2026). On average, a ticket costs $138–$178.

February 2026

Lowest price

on average:

$97

January 2026

Highest price

on average:

$178

Avg Price

Airlines operating on route

The Philadelphia — Ontario route is served by a wide range of airlines: 5 in total, including American Airlines, United Airlines, Frontier Airlines, Spirit Airlines, and Sun Country Airlines. Competition among carriers gives passengers the opportunity to find tickets at attractive fares — with prices starting from $75. Our service helps compare all available offers within seconds and choose the most convenient option. You can filter flights by price, departure time, or baggage rules to make your trip as comfortable as possible. With so many airlines, there’s always a chance to catch special promotions and save.

starting at $282

starting at $294

starting at $75

starting at $100

starting at $266

Non-stop flights from Philadelphia to Ontario

A non-stop flight is the most convenient and comfortable way to fly from Philadelphia to Ontario, despite the fact that sometimes flights with transfers can cost significantly less.

Philadelphia — Los Angeles

PHL — LAX

02/04/2026

Departure

Direct flight

AA2408

starting at $282

Philadelphia — Los Angeles

PHL — LAX

02/03/2026

Departure

Direct flight

AA2408

starting at $530

Philadelphia — Los Angeles

PHL — LAX

02/25/2026

Departure

Direct flight

UA308

starting at $294

Philadelphia — Los Angeles

PHL — LAX

07/06/2026

Departure

Direct flight

AA738

starting at $717

Schedule of direct flights from Philadelphia to Ontario

A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from Philadelphia to Ontario:

Unable to find information about the schedule of direct flights from

Philadelphia airports overview

Philadelphia International Airport

•

PHL

11km

Trenton-Mercer Airport

•

TTN

47km

Serves Trenton and central New Jersey, offering regional and limited international flights with easy access to downtown and nearby highways for convenient connections.

•

Ontario airports overview

Ontario International Airport

•

ONT

5km

Serves Ontario and the Inland Empire region of Southern California, offering domestic and select international flights; convenient for travelers to Los Angeles, San Bernardino and nearby business centers.

•

Frequently asked questions (FAQ)

Answers to questions about the route that travelers are most interested in.

What is the cheapest price for flights from Philadelphia to Ontario?

The cheapest flight ticket from Philadelphia to Ontario according to data for the last 48 hours costs $75

When is the best time to buy air tickets on the route Philadelphia — Ontario?

Often the best time to buy tickets from Philadelphia to Ontario is 2 months before departure.

When is the cheapest time of year to fly from Philadelphia to Ontario?

Based on statistics over the past years, the lowest prices for flights from Philadelphia to Ontario can be found flying in these months: February, January.

How long does it take to fly from Philadelphia to Ontario?

The fastest flights from Philadelphia to Ontario start from 9 hours 50 minutes in the air.

Which airline can fly direct from Philadelphia to Ontario?

The following airlines operate direct flights on the route Philadelphia — Ontario: American Airlines, United Airlines

Special offers and sales on air tickets from Philadelphia to Ontario

We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.

We couldn't find any special offers for flights from Philadelphia to Ontario

Alternative routes

Allentown ➜ Ontario•Atlantic City ➜ Ontario•Baltimore ➜ Ontario•Lancaster ➜ Ontario•New York ➜ Ontario•Philadelphia ➜ Bakersfield•Philadelphia ➜ Fresno•Philadelphia ➜ Long Beach•Philadelphia ➜ Merced•Philadelphia ➜ Modesto•Philadelphia ➜ Mexicali•Philadelphia ➜ Santa Barbara•Philadelphia ➜ Santa Maria•Philadelphia ➜ Tijuana•Philadelphia ➜ Yuma

•••••••••••••••••••

Cheapest one way flight

$75

Frontier Airlines

1 layover

9h 50m

02/03/2026

The cheapest one-way flight from Philadelphia to Ontario departs on 02/03/2026, is operated by Frontier Airlines and costs $75

Cheapest round trip flight

—

There is no information about the cheapest roundtrip flight from Philadelphia to Ontario

The fastest flight