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$50+ Cheap flights from Raleigh to Philadelphia (RDU - PHL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — PHL
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Raleigh-Durham to Philadelphia are usually found in August or July, booked 81 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Raleigh to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Raleigh (RDU) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 16, 2025.

Round-trip from

$79
(Cheapflightsfares)

One-way from

$50
(Kiwi.com)

Popular in

November

Cheapest in

August

Average price

$164

Good round-trip deal

$134 or less

Good one-way deal

$90 or less
From Raleigh-Durham to Philadelphia
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One-way flight from Raleigh-Durham to Philadelphia
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Highest demand for flights based on searches. 9% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Raleigh-Durham to Philadelphia.
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Price to beat on a one-way flight from Raleigh-Durham to Philadelphia.
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Find flight deals from Raleigh to Philadelphia

Cheapest flights from Raleigh to Philadelphia
Explore the most affordable flight options available from Raleigh to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/237:59 pmRDU - PHL
Nonstop1h 33mFrontier
Tue 10/712:07 pmPHL - RDU
Nonstop1h 31mFrontier
Deal found 9/14$83
This Cheapflightsfares deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:59 pmRDU - PHL
Nonstop1h 33mFrontier
Mon 10/136:18 amPHL - RDU
Nonstop1h 36mFrontier
Deal found 9/15$84
This Frontier deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/38:44 amRDU - PHL
Nonstop1h 35mFrontier
Sun 10/126:15 amPHL - RDU
Nonstop1h 36mFrontier
Deal found 9/15$85
This Cheapflightsfares deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/38:44 amRDU - PHL
Nonstop1h 35mFrontier
Sun 10/56:15 amPHL - RDU
Nonstop1h 34mFrontier
Deal found 9/15$89
This Cheapflightsfares deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/17:59 pmRDU - PHL
Nonstop1h 33mFrontier
Mon 10/136:18 amPHL - RDU
Nonstop1h 36mFrontier
Deal found 9/15$90
This Cheapflightsfares deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/257:59 pmRDU - PHL
Nonstop1h 33mFrontier
Tue 9/3012:01 pmPHL - RDU
Nonstop1h 37mFrontier
Deal found 9/15$92
This Frontier deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/257:59 pmRDU - PHL
Nonstop1h 33mFrontier
Sun 9/286:15 amPHL - RDU
Nonstop1h 34mFrontier
Deal found 9/14$93
This Frontier deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/37:59 pmRDU - PHL
Nonstop1h 33mFrontier
Mon 10/136:18 amPHL - RDU
Nonstop1h 36mFrontier
Deal found 9/15$94
This Cheapflightsfares deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/38:44 amRDU - PHL
Nonstop1h 35mFrontier
Mon 10/66:15 amPHL - RDU
Nonstop1h 34mFrontier
Deal found 9/15$95
This Frontier deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/17:59 pmRDU - PHL
Nonstop1h 33mFrontier
Sun 10/56:15 amPHL - RDU
Nonstop1h 34mFrontier
Deal found 9/15$96
This Cheapflightsfares deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/267:59 pmRDU - PHL
Nonstop1h 33mFrontier
Tue 9/3012:01 pmPHL - RDU
Nonstop1h 37mFrontier
Deal found 9/15$97
This Frontier deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/268:44 amRDU - PHL
Nonstop1h 35mFrontier
Thu 10/212:01 pmPHL - RDU
Nonstop1h 37mFrontier
Deal found 9/14$98

Cheapflights Fare Finder

 
Customize your flight search to find flights from Raleigh to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Raleigh to Philadelphia that are best for you.

Fly from

Raleigh

Fly to

Philadelphia

Route

Depart

Return

Price

RaleighPhiladelphia

RDU - PHL

RDUPHL

Raleigh-Durham

Fri 10/3

11:52 am-4:52 pm

1 stop5h 00m

Philadelphia

Sun 10/12

6:15 am-7:51 am

Nonstop1h 36m

$116

RaleighPhiladelphia

RDU - PHL

RDUPHL

Raleigh-Durham

Tue 10/14

7:46 pm-9:17 pm

Nonstop1h 31m

Philadelphia

Tue 10/21

10:33 am-3:37 pm

1 stop5h 04m

$117

RaleighPhiladelphia

RDU - PHL

RDUPHL

Raleigh-Durham

Tue 10/7

7:46 pm-9:17 pm

Nonstop1h 31m

Philadelphia

Thu 10/9

5:00 pm-12:56 pm

1 stop19h 56m

$117

RaleighPhiladelphia

RDU - PHL

RDUPHL

Raleigh-Durham

Fri 11/14

4:13 pm-10:31 pm

1 stop6h 18m

Philadelphia

Sun 11/16

6:00 am-7:36 am

Nonstop1h 36m

$131

RaleighPhiladelphia

RDU - PHL

RDUPHL

Raleigh-Durham

Fri 10/24

1:05 pm-6:24 pm

1 stop5h 19m

Philadelphia

Fri 10/24

9:53 pm-9:35 am

1 stop11h 42m

$144

RaleighPhiladelphia

RDU - PHL

RDUPHL

Raleigh-Durham

Fri 10/31

6:51 pm-12:59 am

1 stop6h 08m

Philadelphia

Mon 11/3

6:00 am-7:36 am

Nonstop1h 36m

$145

RaleighPhiladelphia

RDU - PHL

RDUPHL

Raleigh-Durham

Fri 10/10

7:15 pm-12:59 am

1 stop5h 44m

Philadelphia

Tue 10/14

9:14 pm-11:30 am

1 stop14h 16m

$160

RaleighPhiladelphia

RDU - PHL

RDUPHL

Raleigh-Durham

Sat 10/11

2:36 pm-4:03 pm

Nonstop1h 27m

Philadelphia

Fri 10/17

7:40 am-9:11 am

Nonstop1h 31m

$166

RaleighPhiladelphia

RDU - PHL

RDUPHL

Raleigh-Durham

Wed 12/3

6:34 pm-11:09 pm

1 stop4h 35m

Philadelphia

Mon 12/8

5:24 pm-11:16 pm

1 stop5h 52m

$179

RaleighPhiladelphia

RDU - PHL

RDUPHL

Raleigh-Durham

Fri 10/17

7:15 pm-12:59 am

1 stop5h 44m

Philadelphia

Sat 10/18

6:15 pm-10:22 am

2 stops16h 07m

$192

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 22 results
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2
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The best insider tips for Raleigh to Philadelphia flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Raleigh to Philadelphia trip
Airports
RDU

RDU offers free Wi-Fi throughout the terminals. Connect to the 'RDU Free WiFi' network for easy access.

Read more about RDUby John Walton
PHL

For quick access to downtown, use SEPTA from PHL. Stations are near Terminals A, B, C/D, and E/F.

Read more about PHLby Mark Chesnut
Our travel experts
John Walton

John Walton

Expert on RDU

John Walton

John Walton

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more
Mark Chesnut

Mark Chesnut

Expert on PHL

Mark Chesnut

Mark Chesnut

Mark Chesnut is a travel writer and public speaker with more than 30 years of experience. The 2019 winner of the NLGJA Excellence in Travel Writing Award, Mark is the author of the book “Prepare for Departure” and has covered air travel for multiple top consumer and trade media outlets.

Read more

Best time to book a flight from Raleigh to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Raleigh with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Raleigh to Philadelphia

How far ahead should I book a flight from Raleigh to Philadelphia?

Use this chart to determine the optimal time to book a round-trip flight from Raleigh to Philadelphia. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Raleigh to Philadelphia, you should look to book at least 55 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Raleigh to Philadelphia?

Currently, August is the cheapest month in which you can book a flight from Raleigh to Philadelphia (average of $236). Flying from Raleigh to Philadelphia in March is currently the most expensive (average of $295). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from RDU to PHL?

Find hourly flight availability from Raleigh to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 85% on flights from Raleigh to Philadelphia by exploring options for tickets in the evening.

What is the cheapest day to fly from Raleigh to Philadelphia?

Use this chart to determine the cheapest time to fly round-trip from Raleigh to Philadelphia. Price data was last updated on September 14, 2025.

Travelers seeking maximum savings on their Raleigh to Philadelphia flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Raleigh to Philadelphia?

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Philadelphia. Reviews last updated September 16, 2025.
Peruse reviews from past customers who have flown with United Airlines, American Airlines, and Frontier from Raleigh to Philadelphia to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,924 reviews

Entertainment

7.1

Overall

7.4

Food

6.6

Crew

8.1

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Entertainment

7.1

Overall

7.4

Food

6.6

Crew

8.1

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,924 reviews

Entertainment

7.1

Overall

7.4

Food

6.6

Crew

8.1

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
Frontier
5.8
Fair
3,174 reviews
United Airlines
7.4
Good
8,924 reviews

Entertainment

7.1

Overall

7.4

Food

6.6

Crew

8.1

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Raleigh to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Raleigh to Philadelphia?

    Booking a flight from Raleigh-Durham (RDU) to Philadelphia (PHL) is your only option if you wish to fly from Raleigh to Philadelphia. On a typical day, there are 15 flights from Raleigh-Durham to Philadelphia, all of which are around 1h 27m for a nonstop flight. You can also purchase a plane ticket from 3 airlines when you book a flight from Raleigh-Durham to Philadelphia.

  • How popular is this Raleigh to Philadelphia flight route?

    The Raleigh-Durham to Philadelphia flight path was viewed by 126 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Raleigh to Philadelphia?

    A quick flight from Raleigh to Philadelphia can take about 5h. Frontier provides one of the quickest options available for as low as $116. The distance from Raleigh to Philadelphia is about 337 mi.

  • What are the cheapest airlines flying from Raleigh to Philadelphia round-trip?

    Frontier, at $65, was found to be the cheapest airline from Raleigh to Philadelphia.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Frontier is 61% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Raleigh to Philadelphia?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Raleigh to Philadelphia on time: Piedmont Airlines (89%), American Airlines (69%), Aer Lingus (66%).

  • What are the cheapest flights from Raleigh to Philadelphia?

    The cheapest flight price from Raleigh to Philadelphia is $54. On average you can expect to pay $198. The most popular route, (Raleigh-Durham - Philadelphia), can usually be booked for $53.

  • Can I find deals for flights from Raleigh to Philadelphia that include hotel bookings?

    Yes. In addition to deals on Raleigh to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Raleigh to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Raleigh to Philadelphia.

  • Can I find deals for business class flights from Raleigh to Philadelphia?

    Yes. Cheapflights offers flight deals from Raleigh to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Raleigh to Philadelphia?

    Currently, August is the cheapest month in which you can book a flight from Raleigh to Philadelphia (average of $236). Flying from Raleigh to Philadelphia in March is currently the most expensive (average of $295). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Vineland
Wildwood
King of Prussia
Pottstown
Reading
Dewey Beach
Ephrata
Camden
Ocean City
Cherry Hill
Dover
Elkton
Essington
Willow Grove
Newark
Millville
Chester
Exton
Havre de Grace
Plymouth Meeting

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Raleigh to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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Raleigh to LaGuardia flights
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Wilmington to LaGuardia flights
Asheville to Reagan-National flights
Greensboro to Philadelphia flights
Myrtle Beach to Dulles Intl flights
Knoxville to Reagan-National flights
Knoxville to Newark flights
Myrtle Beach to Reagan-National flights
Wilmington to Dulles Intl flights
Asheville to Philadelphia flights
Greensboro to Reagan-National flights
Wilmington to Reagan-National flights
Wilmington to Philadelphia flights
Myrtle Beach to Pittsburgh flights
Norfolk to Dulles Intl flights
Knoxville to Harrisburg flights
Greensboro to Dulles Intl flights
Asheville to Dulles Intl flights

Top 3 airlines flying from Raleigh to Philadelphia

Discover the top 3 airlines that operate flights from Raleigh to Philadelphia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$65Average$134FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$142Average$303FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$196Average$248FlexibilityNo cancel feeOn-time69%

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