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Amazing Frontier Airlines ONT to PHL Flight Deals

The cheapest flights to Philadelphia Intl. found within the past 7 days were $123 round trip and $74 one way. Prices and availability subject to change. Additional terms may apply.


FAQs about Frontier Airlines Flights from ONT to PHL

What terminal is Frontier Airlines at Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.)?

Once you receive the boarding pass for your Frontier Airlines flight from Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.) to Philadelphia, PA Airport (PHL-Philadelphia Intl.), you should be able to see which terminals you'll be jetting in and out of. Your carrier will have the answers if you can't find those details on your ticket.

Are there Frontier Airlines non-stop flights from ONT to PHL?

As you can't go direct from Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.) to Philadelphia, PA Airport (PHL-Philadelphia Intl.) with Frontier Airlines, make the most of your stopover. Shout yourself a few drinks at an inviting airport bar, or wander around the terminal and enjoy a little retail therapy.

How long is a Frontier Airlines flight from ONT to PHL?

As it'll take around 6 hours for your Frontier Airlines flight to jet from Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.) to Philadelphia, PA Airport (PHL-Philadelphia Intl.), consider putting some fun travel games in your carry-on. You never know — the person next to you might relish a challenge to break up the trip.

How many direct and indirect flights does Frontier Airlines fly from ONT to PHL?

You'll have enough options if you choose to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) with Frontier Airlines. The airline offers 23 flights on this route per month.

Flying Tips & Tricks How do I find my flight number?
  • You will receive an itinerary when you finish your booking. In this document you'll come across your flight number. The first one to two letters and single digit indicate your airline name (these are called IATA airline codes). This is followed by one, two, three or four digits — the flight number.
How early can you check bags for a flight?
  • Check-in times vary from airline to airline. However, with international flights you can usually drop your luggage three hours before departure. We recommend arriving at the airport with ample time to spare as check-in closes around an hour before departure. If you're traveling on a domestic flight, check-in and luggage drop open a couple of hours before departure and close 45 minutes before takeoff.