$45 Cheap Frontier Airlines flights Raleigh (RDU) to Philadelphia (PHL)

Set the “Price (lowest to highest)” filter on Expedia to search for cheap Frontier Airlines round-trip flights from $85 from RDU to PHL. Affordable one-way fares from $45 are available as well.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Search for one-way or return flights to Philadelphia in January or February. You could find an affordable fare with Frontier Airlines during these off-peak times.

For cheap Frontier Airlines fares from Raleigh - Durham Intl. Airport (RDU) to Philadelphia Intl. Airport (PHL), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect the overall price. Sunday is generally the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by choosing to book on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Hop on one of Frontier Airlines’s 8 direct weekly flights from Raleigh - Durham Intl. Airport (RDU) to Philadelphia Intl. Airport (PHL). To see your options, enter your destination, origin and dates and hit search. Then select the “Nonstop” and “Airline” filters.

Take off from Raleigh - Durham Intl. Airport (RDU) for Philadelphia Intl. Airport (PHL) on a nonstop Frontier Airlines flight, and you’ll be in the skies for about 1h 28m.

If you’re looking for flexibility, Saturday offers the most choice for Frontier Airlines flights from Raleigh - Durham Intl. Airport (RDU) to Philadelphia Intl. Airport (PHL). Take your pick of 2 different departures.

The earliest flight from RDU to PHL with Frontier Airlines leaves at 11:08AM UTC-5. You’ll land at 12:39PM UTC-5. The final Frontier Airlines flight of the day leaves at 10:09PM UTC-5 and arrives at 11:37PM UTC-5. With approximately 20% fewer cancellations for departures before midday, beginning your travel day early is generally the best option.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Philadelphia Intl. Airport (PHL) is the main Philadelphia hub for Frontier Airlines flights from Raleigh - Durham Intl. Airport (RDU).

With a rewarding loyalty program, Frontier Airlines is a top pick for many travelers departing from RDU to PHL. Plus, as a Frontier Miles and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You’ll likely be on an Airbus A320neo or an Airbus A321 when flying Frontier Airlines from Raleigh - Durham Intl. Airport (RDU) to Philadelphia Intl. Airport (PHL). However, keep in mind that a different plane may be used due to operational demands.

It’s usually possible to change or cancel your flight, although there may be a charge if you booked more than 24 hours ago. Need flexible options? Use our “No cancel fee” and “Changes included” filters to find flights that won’t charge extra if you need to alter your plans. To make changes, go to “Trips,” select your flight and click on “Manage Booking” for further information.