Q: What is the typical price of a round-trip flight between Philadelphia and Ontario?

Prices are currently low for flights on this route. Typical prices usually range from $532 to $318. The lowest price recently found on this route was $282.

Question 1

Which layover airport offers the lowest fares from Philadelphia to Ontario?

Accepted Answer

Flights via Chicago (MDW) offer the lowest average round-trip price of $374.

Question 2

What is the cheapest month to fly to Ontario?

Accepted Answer

In general, September is the cheapest month to fly from Philadelphia to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $346. If you aren’t able to travel during the month of September, then book flights to Ontario from Philadelphia during May instead. Flights to Ontario in May, while not as cheap as those in September, still average around $355.

Question 3

Which layover airport has the shortest connection time from Philadelphia to Ontario?

Accepted Answer

Chicago (MDW) has the shortest average layover time for this route: 1h 18m.

Question 4

How many flights depart from Philadelphia to Ontario on average per week?

Accepted Answer

As of May 2026, there are 5 flights per week flying from Philadelphia to Ontario. The most common day of the week flights depart is Mon, with 20% of flights taking off on this day.

Question 5

How far in advance should I book a flight from Philadelphia to Ontario?

Accepted Answer

You are more likely to see cheaper flights to Ontario from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $413 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Philadelphia for as low as $324 on momondo.

Question 6

Can stopping save me money on Philadelphia to Ontario flights?

Accepted Answer

You could potentially save up to 26% on your flight if you consider stops on a Philadelphia to Ontario flight.

Question 7

What is the typical price of a round-trip flight between Philadelphia and Ontario?

Accepted Answer

Prices are currently low for flights on this route.Typical prices usually range from $532 to $318.
The lowest price recently found on this route was $282.

Question 8

How have Philadelphia to Ontario flight prices changed over time?

Accepted Answer

As of May 2026, prices for Philadelphia to Ontario flights are approximately 4% more expensive when compared to flights at the same time last year.

Question 9

What is the cheapest airline that flies from Philadelphia to Ontario?

Accepted Answer

Delta and Southwest are the most popular carriers operating from Philadelphia to Ontario

Question 10

Which airport is the most popular layover for flights between Philadelphia and Ontario?

Accepted Answer

Chicago (MDW) was the most common stop: 80% of momondo users choosing 1-stop flights on this route connected there.

Question 11

What airlines fly to Ontario?

Accepted Answer

American Airlines, United Airlines and JetBlue are the top three most popular airlines that fly to Ontario from Philadelphia according to our data. American Airlines is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 10 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

Question 12

Which layover airport has the shortest travel time from Philadelphia to Ontario?

Accepted Answer

Flights connecting via Chicago (MDW) have the shortest average one-way travel time: 8h 05m.

Question 13

When did momondo last update prices for flights from Philadelphia Airport to Ontario Airport?

Accepted Answer

Prices for flights from Philadelphia Airport to Ontario Airport refresh daily.

Question 14

How many operators does momondo search for flights from Philadelphia Airport to Ontario Airport?

Accepted Answer

As of May 2026, there are 5 operators available to choose from for flights from Philadelphia Airport to Ontario Airport.

Question 15

How old do you have to be to fly from Philadelphia Airport to Ontario Airport?

Accepted Answer

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Ontario Airport.

Question 16

What documentation or ID do you need to fly to Ontario Airport?

Accepted Answer

The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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