$56 Cheap Frontier Airlines flights Raleigh (RDU) to Philadelphia (PHL)

View $56 flight on Tue, Aug 12, 2025Opens in a new window

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$56 Cheap Frontier Airlines flights Raleigh (RDU) to Philadelphia (PHL)

Prices were available within the past 7 days and start at $56 for one-way flights and $75 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, Nov 11 - Thu, Nov 13
RDU
Raleigh
PHL
Philadelphia
$75 Roundtrip, found 3 days ago
$75
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Tue, Nov 11 from Raleigh to Philadelphia, returning Thu, Nov 13, priced at $75 found 3 days ago
Frontier Airlines
Wed, Aug 13 - Fri, Aug 15
RDU
Raleigh
PHL
Philadelphia
$94 Roundtrip, just found
$94
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Aug 13 from Raleigh to Philadelphia, returning Fri, Aug 15, priced at $94 just found
Frontier Airlines
Sat, Aug 9 - Thu, Aug 14
RDU
Raleigh
PHL
Philadelphia
$98 Roundtrip, just found
$98
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Aug 9 from Raleigh to Philadelphia, returning Thu, Aug 14, priced at $98 just found
Frontier Airlines
Tue, Nov 11 - Fri, Nov 14
RDU
Raleigh
PHL
Philadelphia
$99 Roundtrip, found 3 days ago
$99
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Tue, Nov 11 from Raleigh to Philadelphia, returning Fri, Nov 14, priced at $99 found 3 days ago
Frontier Airlines
Thu, Aug 7 - Sun, Aug 10
RDU
Raleigh
PHL
Philadelphia
$101 Roundtrip, just found
$101
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Aug 7 from Raleigh to Philadelphia, returning Sun, Aug 10, priced at $101 just found
Frontier Airlines
Wed, Nov 12 - Tue, Nov 18
RDU
Raleigh
PHL
Philadelphia
$103 Roundtrip, found 3 days ago
$103
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Wed, Nov 12 from Raleigh to Philadelphia, returning Tue, Nov 18, priced at $103 found 3 days ago
Flights from Raleigh (RDU) to Philadelphia (PHL)
Origin airport
Raleigh - Durham Intl.
Destination airport
Philadelphia Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, United
Popular airline
Frontier Airlines
Distance
337 mi

Frequently asked questions

How much is a Frontier Airlines flight from Raleigh - Durham Intl. Airport (RDU) to Philadelphia Intl. Airport (PHL)?
Set the "Price (lowest to highest)" filter on Expedia to search for cheap Frontier Airlines round-trip flights from $75 from RDU to PHL. Affordable one-way fares from $56 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.
What is the cheapest month to fly from RDU to PHL with Frontier Airlines?
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.
What is the cheapest time to book flights from Raleigh - Durham Intl. Airport (RDU) to Philadelphia Intl. Airport (PHL) with Frontier Airlines?
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.
Does Frontier Airlines fly nonstop from Raleigh - Durham Intl. Airport (RDU) to Philadelphia Intl. Airport (PHL)?
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.
How long does it take to fly from RDU to PHL with Frontier Airlines?
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.
Which day of the week has the most Frontier Airlines flights from Raleigh - Durham Intl. Airport (RDU) to Philadelphia Intl. Airport (PHL)?
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.
What is the earliest Frontier Airlines flight from RDU to PHL?
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.
What airports does Frontier Airlines fly into in Philadelphia?
Philadelphia Intl. Airport (PHL) is the main Philadelphia hub for Frontier Airlines flights from Raleigh - Durham Intl. Airport (RDU).
Why fly with Frontier Airlines from RDU to PHL?
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.
What type of plane does Frontier Airlines fly from Raleigh - Durham Intl. Airport (RDU) to Philadelphia Intl. Airport (PHL)?
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.
Can I change or cancel my Frontier Airlines flight from Raleigh - Durham Intl. Airport (RDU) to Philadelphia Intl. Airport (PHL)?
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.
*Available to One Key members.